2250 Hand Held Analyzer - Architecture, Design and Planning

BE1713-11_Cover.fm Page 1 Friday, April 16, 2004 10:57 AM
Technical
Documentation
Hand-held Analyzer Type 2250
With 2250 Sound Level Meter Software BZ 7222 and
2250 Frequency Analysis Software BZ 7223
Instruction Manual
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Local representatives and service organisations worldwide
English BE 1712 – 11
BE171211.book Page i Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250
with
2250 Sound Level Meter Software BZ 7222
and
2250 Frequency Analysis Software BZ 7223
From Serial Number 2435900
Instruction Manual
BE 1712−11
May 2004
BE171211.book Page ii Thursday, May 27, 2004 1:01 PM
Safety Considerations
This apparatus has been designed and tested in accordance with IEC 61010 – 1 and EN 61010 – 1 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use. This manual contains information and warnings which must be followed to ensure safe operation and to retain the apparatus in safe condition.
Special note should be made of the following:
Safety Symbols
The apparatus will be marked with this symbol when it is important that you refer to the associated warning
statements given in the manual.
Protective Earth Terminal
Hazardous Voltage
Explosion Hazard
The equipment is not designed to be used in potentially explosive environments. It should not be operated in the
presence of flammable liquids or gases.
Warnings
•
Switch off all power to equipment before connecting or disconnecting their digital interface. Failure to do so
could damage the equipment.
•
Whenever it is likely that the correct function or operating safety of the apparatus has been impaired, it must
be made inoperative and be secured against unintended operation.
•
Any adjustment, maintenance and repair of the open apparatus under voltage must be avoided as far as possible
and, if unavoidable, must be carried out only by trained service personnel.
Trademarks
Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or other countries.
Pentium is a registered trademark of Intel Corporation or its subsidiaries in the United States and/or other countries.
Copyright © 2004, Brüel & Kjær Sound & Vibration Measurement A/S
All rights reserved. No part of this publication may be reproduced or distributed in any form, or by any means,
without prior written consent from Brüel & Kjær Sound & Vibration Measurement A/S, Nærum, Denmark.
BE171211.book Page iii Thursday, May 27, 2004 1:01 PM
Table of Contents
CHAPTER 1
Introduction .......................................................................................................................................... 1
1.1
1.2
1.3
About This Manual..................................................................................................................................... 1
System Overview....................................................................................................................................... 2
Hardware Setup......................................................................................................................................... 3
CHAPTER 2
Measured Quantities and Parameters ............................................................................................... 7
2.1
2.2
2.3
2.4
2.5
Introduction................................................................................................................................................
Measuring Low-level Sounds ....................................................................................................................
Measuring at Low Static Pressure.............................................................................................................
Frequency Weightings...............................................................................................................................
Measured Quantities .................................................................................................................................
7
7
8
8
8
CHAPTER 3
Conformance Testing ........................................................................................................................ 15
3.1
3.2
3.3
3.4
3.5
3.6
Introduction..............................................................................................................................................
Mounting for Acoustical Tests .................................................................................................................
Mounting for Mechanical Vibrations Tests...............................................................................................
Electrical Substitute for Microphones ......................................................................................................
Testing 1/1-octave-band and 1/3-octave-band Filters .............................................................................
EMC test procedures...............................................................................................................................
15
15
15
15
16
16
CHAPTER 4
Specifications .................................................................................................................................... 19
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
4.16
4.17
4.18
Specifications ..........................................................................................................................................
Standards ................................................................................................................................................
Reference Environmental Conditions ......................................................................................................
Reference Conditions for Acoustic Calibration ........................................................................................
Microphone..............................................................................................................................................
Frequency Response ..............................................................................................................................
Directional Response ..............................................................................................................................
Self-generated Noise...............................................................................................................................
Measuring Range ....................................................................................................................................
Detectors .................................................................................................................................................
Spectrum Analysis...................................................................................................................................
Influence from the Operating Environment..............................................................................................
Electrical Input to Connector Panel of Type 2250 ...................................................................................
Electrical Output from Type 2250 ............................................................................................................
Power Supply ..........................................................................................................................................
Warm-up Time.........................................................................................................................................
Real-time Clock .......................................................................................................................................
CE-mark and C-Tick mark Compliance ...................................................................................................
19
19
19
20
20
20
26
39
41
43
45
47
49
49
50
50
50
51
APPENDIX A
Tables ................................................................................................................................................. 53
A.1
A.2
A.3
A.4
Electrical Frequency Responses ............................................................................................................
Free-field Frequency Responses ............................................................................................................
Diffuse-field Frequency Responses.........................................................................................................
Directional Responses.............................................................................................................................
53
55
62
66
BE171211.book Page iv Thursday, May 27, 2004 1:01 PM
APPENDIX B
Cross-references to Standards...................................................................................................... 105
B.1
B.2
B.3
Introduction ........................................................................................................................................... 105
Cross-references to Standards ............................................................................................................. 106
Irrelevant Topics.................................................................................................................................... 111
INDEX......................................................................................................................................................................... 113
BE171211.book Page 1 Thursday, May 27, 2004 1:01 PM
1
Chapter 1
Introduction
1.1
About This Manual
This Instruction Manual for Hand-held Analyzer Type 2250, together with User Manual BE 1713, have
been created to fulfill the conditions of the following International Standard for Sound Level Meters:
•
IEC 61672–1 (2002–05), Class 1, Group Z
The manuals contain all the information required by clauses 4, 5, 6, 7 and 9 of the above standard.
Appendix B of this manual provides cross-references between specific paragraphs in the standards that
require topics to be documented, and the corresponding sections in this manual and User Manual
BE 1713 that conform to these.
This Instruction Manual supplements User Manual BE 1713, and together, the two manuals comprise
the full documentation of Type 2250 as required by IEC 61672–1, as well as the earlier standards
IEC 60651 and IEC 60804.
The User Manual provides all the information necessary for operating Type 2250, descriptions of the
measured quantities, and general advice as to proper measurement practices. The User Manual also
contains the technical specifications that are most likely to be of practical use when making standard
sound-level measurements. This information is not repeated in this manual, except for the specifications, which are given in full here. In the event of any unintended inconsistency between the User
Manual and the Instruction Manual, this manual takes precedence.
Both printed manuals (Instruction and User) will be supplied with each sound level meter or equivalent
instrument that conforms to the specifications of this standard.
Consult the relevant User Manual for detailed information on the Outdoor Microphone Kit UA 1404
(BE 1077).
1.1.1
Conventions Used in this Manual
Menu items and buttons/tabs used on the screen
Indicated by bold type face (for example, as displayed on the Details tab of the Calibration display).
Parameter Text Appearing on the Screen
Parameters, instructions and descriptions appearing on the screen are indicated by italics (for example,
Measurement Mode).
BE171211.book Page 2 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
2
1.2
System Overview
1.2.1
Introduction
This Instruction Manual describes the Type 2250 Hand-held Analyzer platform, including BZ 7222
Sound Level Meter Software for Type 2250 and BZ 7223 Frequency Analysis Software for Type 2250.
The instrument is based on a unique platform concept that allows the user to choose a combination of
options, thus ensuring the Type 2250 suits everyones exact needs. The options come in the form of
software modules that can be enabled through easily activated software license keys. They can be
enabled from the factory, or at a later date, whichever suits the user. The combination of the Sound
Level Meter (SLM) module and the Frequency Analysis module ensures that the right measurement
platform is created. As a result, the user gets the functionality needed now, plus the option of adding
more functionality later on.
The software modules are further enhanced by Brüel & Kjær’s post-processing software suite, including
BZ 5503 PC Software for Hand-held Analyzers for data transfer, setup and remote display (included),
Noise Explorer™ Type 7815 for viewing data, Evaluator™ Type 7820 for assessing environmental
noise and Protector™ Type 7825 for assessing workplace noise.
All instruments come with the SLM module enabled. This makes Type 2250 into a modern precision,
Class 1 Sound Level Meter. It fulfills all the requirements of IEC 61672-1, as well as earlier standards.
Type 2250 is delivered with a number of pre-defined measurement and display setups that are tailored
to suit specific purposes (for example, external noise measurement). The software includes facilities for
calibration procedures for checking the microphone condition.
1.2.2
Optional Software Modules
The software modules that are used in Type 2250 can be considered as blocks of optional functionality,
that can be enabled by license codes. Each of the software modules exploits the features and specifications of the hardware. The user chooses the combination that suits the current measurement and starts
measuring. If the application changes, the user purchases another license code and enables a different
software module. All the modules have a planned growth path and are developing continuously with
the product.
Presently, the only optional software module available is the Frequency Analysis Software Module,
BZ 7223, providing real-time analysis of the 1/1- and 1/3- octave filter bands.
1.2.3
Type 2250 PC Software – BZ 5503
A PC software application that incorporates the following features is included with the instrument:
•
It enables you to create setups, edit them and store them on your PC beforehand, then connect Type
2250 and your PC together to synchronise the data between them
•
It allows you to setup Type 2250 (before measurements) and retrieve data from Type 2250 (after
measurements) for postprocessing and reporting
•
All settings and data from your jobs on Type 2250 can be displayed, so you can document the measurements made
•
Retrieved data is stored in a form recognised by Type 7815, 7820 and 7825 software
•
It allows you to export data to Microsoft® Excel spreadsheets
•
It enables you to remotely display the Type 2250 screen on your PC
This PC software for Hand-held Analyzers comes included on CD-ROM BZ 5298, Environmental
Software.
BE171211.book Page 3 Thursday, May 27, 2004 1:01 PM
CHAPTER 1
Introduction
1.3
3
Hardware Setup
This section provides an overview of the hardware components used with Type 2250 Hand-held Analyzer, to fulfill the conditions of IEC 61672-1. This information is covered in more detail in the associated User Manual BE 1713.
A hardware overview is provided in Fig.1.1, optional accessories are designated on the diagram.
The components included with the Type 2250 are listed in Table 1.1, while the components and
accessories that are available but not included with Type 2250 are listed in Table 1.2. The optional
accessories listed are approved for use with Type 2250 and likewise conform to the aforementioned
standard.
BE171211.book Page 4 Thursday, May 27, 2004 1:01 PM
4
Hand-held Analyzer Type 2250 – Instruction Manual
Fig.1.1
Hardware Overview
Outdoor
Microphone Kit
UA 1404
UA 1650
90 mm Windscreen
with AutoDetect
4189 Microphone
ZC 0032 Microphone
Preamplifier
AO 0441
Microphone
ext. cable, 3 m
UA1317
Microphone
Holder
Sound Level
Calibrator 4231
AO 0442
Microphone
ext. cable, 10 m
Accessories for Type 2250
UL 1009
Industrial Grade
SD Memory Card
for Hand-held
Analyzer
UA0801
Small
Tripod
(or UA 0587)
BZ 5298
Environmental
Software CD
incl. PC-software
Type 2250
Hand-held
Analyzer
QB 0061
Rechargeable
Battery Pack
ZG 0444
Battery Charger
for QB 0061
UA 1651
Tripod Extension
for Hand-held Analyzer
KE 0441
Protective Cover
UA 1654
5 extra Styli
DH 0696
Wrist Strap
KE 0440
Travel Bag
for 2250 and
Accessories
AO 1476
USB Interface Cable
1.8 m
UA 0587 Tripod
or UA 0801
ZG 0426
Mains Power Supply
HT 0015
Earphones
AO 0440
Output cable
1.5 m
AO 0440
Input cable
1.5 m
AO 0440
Trigger Input cable
1.5 m
040031
BE171211.book Page 5 Thursday, May 27, 2004 1:01 PM
CHAPTER 1
Introduction
Table 1.1
Components included with Type
2250
Table 1.2
Components and
accessories not included with Type
2250
Quantity
Brüel & Kjær Type/Part
Number
Description
1
Type 4189
Prepolarized Free-field ½″ Condenser Microphone
1
ZC 0032
Microphone Preamplifier
1
UA 1650
90 mm dia. Windscreen with AutoDetect
1
UA 1651
Tripod Extension for Hand-held Analyzer
1
ZG 0426
Mains Power Supply, 12 V DC, unscreened cable
1
QB 0061
Rechargeable Battery Pack
1
AO 1476
USB Interface Cable, screened
1
HT 0015
Earphones
1
DH 0696
Wrist Strap
1
KE 0440
Travel Bag
1
KE 0441
Protective Cover for Type 2250
1
UA 1654
5 Extra Styli
1
BZ 7222
2250 Sound Level Meter Software (pre-enabled)
1
BZ 5298
Environmental Software, including PC Software for
Hand-held Analyzers
Quantity
Brüel & Kjær Type/Part
Number
Description
1
AO 0440
Signal Cable, LEMO to BNC, 1.5 m
1
AO 0441
Microphone Extension Cable, 3 m, 10-pin LEMO
1
AO 0442
Microphone Extension Cable, 10 m, 10-pin LEMO
1
UA 0587
Tripod
1
UA 0801
Small Tripod
1
UA 1317
Microphone Holder
1
UA 1404
Outdoor Microphone Kit
Type 3592
Outdoor Measuring Gear (see Product Data
BP 1744)
1
UL 1009
Industrial Grade SD Memory Card for Hand-held
Analyzers
1
ZG 0444
Charger for QB 0061 Battery Pack
1
Type 4231
Sound Level Calibrator (fits in KE 0440)
1
Type 4226
Multifunction Acoustic Calibrator
1
Type 4228
Pistonphone
1
BZ 7223
2250 Frequency Analysis Software
5
BE171211.book Page 6 Thursday, May 27, 2004 1:01 PM
6
Hand-held Analyzer Type 2250 – Instruction Manual
BE171211.book Page 7 Thursday, May 27, 2004 1:01 PM
7
Chapter 2
Measured Quantities and Parameters
2.1
Introduction
This chapter contains detailed information on the measured quantities and parameters that Type 2250 is
capable of measuring.
2.2
Measuring Low-level Sounds
If the measured sound level is within the Linear Operating Range or, for C-weighted peak sound levels,
within the Peak C Range given in the specifications (see section 4.9.7 and section 4.9.8), then the
inherent (self-generated) noise and level linearity problems can be ignored.
It is possible to correct the measured sound levels, except peak levels, for the typical inherent noise,
found in the specifications, see section 4.8.2. The correction for inherent noise can be made by subtracting inherent noise, Linh, from the total sound level, Ltot, using the following equation:
L tot ⁄ 10
L inh ⁄ 10
⎞
L res = 10lg ⎛ 10
– 10
⎝
⎠
If Ltot – Linh is less than 3 dB, the sound level is too low to be compensated.
Fig.2.1
Error from inherent
noise
7
Error (dB)
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
L tot - L inh [dB]
10
11
12
13
14
15
Fig.2.1 shows the error on the measured sound levels from the presence of inherent noise. The curve
can also be used for compensation by subtracting the error from the measured sound levels. This is
equivalent to using the formula.
BE171211.book Page 8 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
8
2.3
Measuring at Low Static Pressure
The frequency response of the microphone depends on the static pressure. Using a Sound Level Calibrator to adjust the sensitivity of a Sound Level Meter at the calibration check frequency provides no
information on the influence of static pressure on frequency response. Conformance to the specified
standards ensures that the system measures within the standards’ tolerances, in the range from 85 kPa
to 108 kPa. Data for the frequency response as a function of static pressure for Microphone Type 4189
can be found in the Microphone Handbook BA 5105.
At the calibration check frequency, both the microphones and the recommended Brüel & Kjær Sound
Level Calibrator Type 4231 are rather insensitive to variations in the static pressure, for the Sound
Level Calibrator Type 4231, below 0.001 dB/kPa.
2.4
Frequency Weightings
Both broadband and spectrum measurements can be frequency weighted with A-, C- or Z-weighting.
The A- and C-weightings conform to the requirements in IEC 60651 and IEC 61672 – 1.
The Z-weighting (Zero frequency weighting) is a linear, unweighted, frequency weighting. It confirms
to the Lin response defined in IEC 60651 and the Z-weighting defined in IEC 61672 – 1.
Table 2.1 states the design goal frequency responses for the frequency weightings according to
IEC 61672 – 1. They are stated for the complete instrument including the microphone. For the A- and
C-frequency-weightings, these design goals are equivalent to the ones specified in IEC 60651. The
corresponding tolerance limits can be found in the standards.
2.5
Measured Quantities
2.5.1
Introduction
All the measured quantities can be displayed on the screen (a transflective, back-lit, 240 × 320 dot
matrix, colour touch screen) as numerals, with a resolution of 0.1 dB over the measuring range. See
section 4.9 for further information on measurement ranges.
2.5.2
Instantaneous Broadband Measurements
These measurements are done continuously, independent of measurement Start, Pause and Stop. They
cannot be saved and are only displayed.
Overload
For Instantaneous Measurements, the Overload indication is displayed as long as the overload condition exists, or for 1 s, whichever is the greater.
Overload is indicated as ‘Overload’ on the screen and by a flashing red ‘traffic light’ indicator.
Overload is common to all results of Instantaneous Measurements.
Under-Range
No under-range indication is given because the instrument only has one range, which extends upwards
from the inherent noise level.
Time-weighted Sound Level, F and S Time-weighted
The time-weighted sound level, Lxy(t), is defined as twenty times the logarithm to the base ten of the
ratio of a given root-mean-square sound pressure to the reference sound pressure, root-mean-square
sound pressure being obtained with a frequency weighting, x, and standard time weighting, y, where:
BE171211.book Page 9 Thursday, May 27, 2004 1:01 PM
CHAPTER 2
Measured Quantities and Parameters
Table 2.1
Frequency weightings according to
IEC 61672 – 1, Table 2
Nominal Frequency
(Hz)
9
Frequency Weightings
(1 decimal)
(dB)
Exact Frequency
(6 digits)
(Hz)
A
C
Z
10
10
–70.4
–14.3
0.0
12.5
16
20
12.5893
15.8489
19.9526
–63.4
–56.7
–50.5
–11.2
–8.5
–6.2
0.0
0.0
0.0
25
31.5
40
25.1189
31.6228
39.8107
–44.7
–39.4
–34.6
–4.4
–3.0
–2.0
0.0
0.0
0.0
50
63
80
50.1187
63.0957
79.4328
–30.2
–26.2
–22.5
–1.3
–0.8
–0.5
0.0
0.0
0.0
100
125
160
100
125.893
158.489
–19.1
–16.1
–13.4
–0.3
–0.2
–0.1
0.0
0.0
0.0
200
250
315
199.526
251.189
316.228
–10.9
–8.6
–6.6
0.0
0.0
0.0
0.0
0.0
0.0
400
500
630
398.107
501.187
630.957
–4.8
–3.2
–1.9
0.0
0.0
0.0
0.0
0.0
0.0
800
1000
1250
794.328
1000
1258.93
–0.8
0.0
+0.6
0.0
0.0
0.0
0.0
0.0
0.0
1600
2000
2500
1584.89
1995.26
2511.89
+1.0
+1.2
+1.3
–0.1
–0.2
–0.3
0.0
0.0
0.0
3150
4000
5000
3162.28
3981.07
5011.87
+1.2
+1.0
+0.5
–0.5
–0.8
–1.3
0.0
0.0
0.0
6300
8000
10000
6309.57
7943.28
10000
–0.1
–1.1
–2.5
–2.0
–3.0
–4.4
0.0
0.0
0.0
12500
16000
20000
12589.3
15848.9
19952.6
–4.3
–6.6
–9.3
–6.2
–8.5
–11.2
0.0
0.0
0.0
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
y is F for Fast-weighted or S for Slow-weighted
The time-weighted sound level is a continuous function of time and is expressed in decibels (dB).
Lxy(t) is not displayed, but is the base for Lxy(Tn), Lxy(SPL)(Tn), Lxymax(T) and Lxymin(T).
In symbols, frequency-weighted and time-weighted sound level, Lxy(t), at any instant of time, t, is
represented by:
L xy ( t ) = 20lg
where:
(1 ⁄ τ)
t
∫–∞ px
2
( ξ )e
–(t – ξ) ⁄ τ
dξ
⁄
p0
[dB]
BE171211.book Page 10 Thursday, May 27, 2004 1:01 PM
10
Hand-held Analyzer Type 2250 – Instruction Manual
•
τ is the exponential time constant in seconds for time weighting F or S
•
ξ is a dummy variable of time integration from some time in the past, as indicated by –∞ for the lower
limit of the integral, to the time of observation t
•
px(ξ) is the x frequency-weighted instantaneous sound pressure
•
p0 is the reference sound pressure, equal to 20 µPa
The exponential time constants are stated in Table 2.2.
Table 2.2
Exponential time
constants and corresponding averaging times
Time Weighting
Time Constant
(seconds)
Averaging Time
(seconds)
Fast
0.125
0.25
Slow
1
2
Time-weighted Sound Level, I Time-weighted
The I (Impulse) time-weighted sound level, LxI(t), is defined as ten times the logarithm to base ten of
the ratio of a given mean-square sound pressure to the square of the reference sound pressure, p0,
followed by a peak detector with a decay time constant of 1500 ms. The mean-square sound pressure
being obtained with a frequency weighting, x, and time weighting with a 35 ms time constant, where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
p0 is the reference sound pressure, equal to 20 µPa
The I time-weighted sound level is a continuous function of time and is expressed in decibels (dB).
LxI(t) is not displayed but is the base for LxI(Tn), LxI(SPL)(Tn), LxImax(T), LxImin(T) and LxIm(T).
Instantaneous Time-weighted Sound Level
The instantaneous time-weighted sound level, Lxy(Tn), is defined as the time-weighted sound level,
Lxy(t), sampled at t = Tn where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
y is F for Fast-weighted, S for Slow-weighted or I for Impulse-weighted
•
Tn = t0 +n·∆t
•
t0 is some starting time
•
n is an incrementing integer
•
∆t is the display update interval
The instantaneous time-weighted sound level is, in other words, updated every ∆t second and is expressed in decibels (dB).
The symbols used on the screen of Type 2250 for instantaneous time-weighted sound levels are (for A,
C and Z frequency-weighting and F, S and I time-weighting): LAF, LAS, LAI, LCF, LCS, LCI, LZF, LZS,
LZI.
Sound Pressure Level (SPL)
The sound pressure level, Lxy(SPL)(Tn), is defined as the greatest time-weighted sound level, Lxy(t),
within a time interval starting at t = Tn and ending at t = Tn + ∆t where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
y is F for Fast-weighted, S for Slow-weighted or I for Impulse-weighted
•
Tn = t0 + n·∆t
•
t0 is some starting time
•
n is an incrementing integer
BE171211.book Page 11 Thursday, May 27, 2004 1:01 PM
CHAPTER 2
Measured Quantities and Parameters
•
11
∆t is the display update interval, equal to 1 second
The sound pressure level is, in other words, updated every 1 second and is expressed in decibels (dB).
The symbols used on the screen of Type 2250 for sound pressure levels are (for A, C and Z frequencyweighting and F, S and I time-weighting):
LAF(SPL), LAS(SPL), LAI(SPL), LCF(SPL), LCS(SPL), LCI(SPL), LZF(SPL), LZS(SPL), LZI(SPL)
2.5.3
Timed Broadband Measurements
These measurements are only executed when Start is activated and are paused when Pause is activated
or when Preset Time has expired, whichever occurs first. The time interval between start and pause is
the Elapsed Time. During the measurement time interval, intermediate results are displayed as if the
measurements were paused at the time of display. When the measurements are paused, the set of
results, including Latched Overload and Overload %, are stored under Current Measurement and this
is held until either Reset is activated or a new set of measurements are started. The Current Measurement (if any) is displayed and can be saved, together with setup and calibration information, to a
project.
Latched Overload
For the timed measurements, a Latched Overload indication is displayed and included in the set of
results if the overload condition exists at any time during the measurement time interval. The latched
Overload is indicated by a red triangle
on the screen. The Latched Overload is common to all the
results of the timed measurements.
Overload Percentage
The Overload Percentage, Overload %, is defined as the percentage of time within a time interval
starting at t = T and ending at t = T + ∆t where the overload condition exists, where:
•
T is the start time of the measurement, indicated as Start Time
•
∆t is the measuring period, indicated as Elapsed Time
Under-Range
No under-range indication is given because the instrument only has one range, which extends upwards
from the inherent noise level.
Maximum Time-weighted Sound Level
The maximum time-weighted sound level, Lxymax(T), is defined as the greatest time-weighted sound
level, Lxy(t), within a time interval starting at t = T and ending at t = T + ∆t where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
y is F for Fast-weighted, S for Slow-weighted or I for Impulse-weighted
•
T is the start time of the measurement, indicated as Start Time
•
∆t is the measuring period, indicated as Elapsed Time
The maximum time-weighted sound level is expressed in decibels (dB).
The symbols used on the screen of Type 2250 for maximum time-weighted sound levels are (for A, C
and Z frequency-weighting and F, S and I time-weighting):
LAFmax, LASmax, LAImax, LCFmax, LCSmax, LCImax, LZFmax, LZSmax, LZImax
Minimum Time-weighted Sound Level
The minimum time-weighted sound level, Lxymin(T), is defined as the smallest time-weighted sound
level, Lxy(t), within a time interval starting at t = T and ending at t = T + ∆t where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
BE171211.book Page 12 Thursday, May 27, 2004 1:01 PM
12
Hand-held Analyzer Type 2250 – Instruction Manual
•
y is F for Fast-weighted, S for Slow-weighted or I for Impulse-weighted
•
T is the start time of the measurement, indicated as Start Time
•
∆t is the measuring period, indicated as Elapsed Time
The minimum time-weighted sound level is expressed in decibels (dB).
The symbols used on the screen of Type 2250 for maximum time-weighted sound levels are (for A, C
and Z frequency-weighting and F, S and I time-weighting):
LAFmin, LASmin, LAImin, LCFmin, LCSmin, LCImin, LZFmin, LZSmin, LZImin
Equivalent Continuous Sound Level
The equivalent continuous sound level (also called time-average sound level), Lxeq(T), is defined as
twenty times the logarithm to base ten of the ratio of a root-mean-square sound pressure during a time
interval to the reference sound pressure, sound pressure being obtained with a frequency weighting, x.
The time interval is starting at t = T and ending at t = T + ∆t where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
T is the start time of the measurement, indicated as Start Time
•
∆t is the averaging time interval, indicated as Elapsed Time
The equivalent continuous sound level is expressed in decibels (dB).
In symbols, equivalent continuous sound level, Lxeq(T), is given by:
L xeq ( T ) = 20lg
( 1 ⁄ ∆t )
T + ∆t
∫T
2
p x ( ξ )dξ
⁄
[dB]
p0
where:
•
ξ is a dummy variable of time integration over the averaging time interval
•
px(ξ) is the x frequency-weighted instantaneous sound pressure
•
p0 is the reference sound pressure, equal to 20 µPa
The symbols used on the screen of Type 2250 for equivalent continuous sound levels are (for A, C and
Z frequency-weighting):
LAeq, LCeq, LZeq
Equivalent Continuous I-weighted Sound Level
The equivalent continuous I-weighted sound level (also called average I-weighted sound level),
LxIeq(T), is defined as ten times the logarithm to base ten of the mean of ten to the power of the I timeweighted sound level, LxI(t), divided by ten during a time interval. The time interval is starting at t = T
and ending at t = T + ∆t where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
T is the start time of the measurement, indicated as Start Time
•
∆t is the averaging time interval, indicated as Elapsed Time
The equivalent continuous I-weighted sound level is expressed in decibels (dB).
In symbols, equivalent continuous I-weighted sound level, LxIeq(T), is given by:
L xIeq ( T ) = 10lg ( 1 ⁄ ∆t )
T + ∆t
∫T
10
L xI ( ξ ) ⁄ 10
dξ
[dB]
where:
•
ξ is a dummy variable of time integration over the averaging time interval
BE171211.book Page 13 Thursday, May 27, 2004 1:01 PM
CHAPTER 2
Measured Quantities and Parameters
13
The symbols used on the screen of Type 2250 for equivalent continuous I-weighted sound levels are
(for A, C and Z frequency-weighting):
LAIeq, LCIeq, LZIeq
Peak Sound Level
The peak sound level, Lxpeak(T), is defined as twenty times the logarithm to base ten of the ratio of the
greatest absolute instantaneous sound pressure, px(t), within a time interval starting at t = T and ending
at t = T + ∆t, to the reference sound pressure, p0, instantaneous sound pressure being obtained with a
frequency weighting, x, where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
px(t) is the x frequency-weighted instantaneous sound pressure
•
p0 is the reference sound pressure, equal to 20 µPa
•
T is the start time of the measurement, indicated as Start Time
•
∆t is the measuring period, indicated as Elapsed Time
The maximum peak sound level is expressed in decibels (dB).
The symbols used on the screen of Type 2250 for peak sound levels are (for A, C and Z frequencyweighting):
LApeak, LCpeak, LZpeak
2.5.4
Spectrum Measurements
Note: These measurements require Frequency Analysis Software BZ 7223.
The definition of the measured quantities is the same as for the broadband measurements.
At low frequency bands the exponential time constants for Fast-weighting are modified to get a reasonable B*T product, see section 4.11.5.
2.5.5
Instantaneous Spectrum Measurements
Note: These measurements require Frequency Analysis Software BZ 7223.
The Instantaneous Spectrum Measurements can measure instantaneous time-weighted sound level Lxy,
where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
y is F for Fast-weighted or S for Slow-weighted
Overload is common to the broadband measurements.
No Under-Range is indicated.
2.5.6
Timed Spectrum Measurements
Note: These measurements require Frequency Analysis Software BZ 7223.
The Timed Spectrum Measurements can measure minimum time-weighted sound level, Lxymin, maximum time-weighted sound level, Lxymax, and equivalent continuous sound level, Lxeq, where:
•
x is A for A-weighted, C for C-weighted or Z for Z-weighted
•
y is F for Fast-weighted or S for Slow-weighted
Latched Overload and Overload Percentage is common to the broadband measurements.
No Under-Range is indicated.
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14
Hand-held Analyzer Type 2250 – Instruction Manual
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15
Chapter 3
Conformance Testing
3.1
Introduction
This chapter contains the information needed to conduct conformance testing according to the specified
standards.
3.2
Mounting for Acoustical Tests
For acoustical tests, it is important that the test rig for mounting the microphone to be tested is
designed to minimise the influence of reflections to a level that is comparatively smaller than the test
parameter’s maximum Expanded Uncertainties of Measurement. This has to be demonstrated with a
good, known laboratory microphone.
Various ways in which the different microphone assemblies can be mounted to the test rig are:
3.3
•
Microphone Type 4189 on Microphone Preamplifier ZC 0032 can be mounted in the ½″ Microphone
Holder UA 1317. The Microphone Holder can be mounted using the tripod mount thread. To minimise the influence of reflections from the Microphone Holder, bend the holder part to an angle of 45°
± 15° from the straight position
•
Outdoor Microphone Kit UA 1404 can be mounted using the tripod mount thread in the Mounting
Ring
Mounting for Mechanical Vibrations Tests
Only the microphone and preamplifier assembly contributes significantly to the sensitivity to mechanical vibrations. Therefore, only this assembly has to be tested.
Microphone Type 4189 and Microphone Preamplifier ZC 0032 assembly is mounted on the shaker with
a suitable holder so that the vibration is applied in a direction perpendicular to the plane of the
microphone diaphragm.
3.4
Electrical Substitute for Microphones
To obtain a BNC type electrical input, replace the Type 4189 microphone with a WA0302-B, 15 pF,
fitted with a UA 0245 adaptor.
Electrical specifications obtained when introducing signals in this way are equal to the specifications
given in section 4.13.
All electrical inputs can be short-circuited when needed for test.
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Hand-held Analyzer Type 2250 – Instruction Manual
16
3.5
Testing 1/1-octave-band and 1/3-octave-band Filters
When testing the octave-band filter sets according to IEC 61260, the rear ‘Input’ socket on Type 2250
should be used.
All tests according to IEC 61260 must be conducted with Spectrum frequency-weighting set to ‘Z’.
(Frequency Analysis Software BZ 7223 required.)
Note 1: When testing relative attenuation according to IEC 61260 paragraph 5.3, the input level must
be within 1 dB of the upper boundary of the Linear Operating Range. This could lead to overload
indications in the frequency range 1 to 8 kHz. These overload indications come from the A-frequencyweighting filters and have no influence on the performance of the octave-band filter sets, as long as
there is no overload at 1 kHz. To reduce this phenomenon, it is advisable to conduct the test at 1 dB
below the upper boundary of the Linear Operating Range.
Note 2: In order to measure without any correction for sound field or windscreen, set Microphone Type
to Unknown for the transducer in use in the Transducers setup. (i.e., Transducers selected from the
Main Menu.) This will not affect the current calibration.
3.6
EMC test procedures
3.6.1
Signal Source for Immunity Test
The acoustic signal, which is used during the Immunity test, is applied to the microphone through a
½ ″ plastic hose (a normal water hose) – from a source outside the test room. In this way, the acoustic
source is not affected by the RF field. The source may be a normal entertainment earphone.
Fig.3.1
Setting up the
signal source for an
immunity test
Microphone assembly
(windscreen removed)
Water hose
50 dB SPL inside
Acoustic
Compacted
attenuator paper tissue
Water hose to
acoustic source
>90 dB SPL inside
020099
To prevent the acoustic source from being affected by acoustic noise in the surroundings, the following
method can be used:
•
3.6.2
Insert an acoustic attenuator in the hose close to the microphone, so that the sound pressure within the
greater part of the hose is held far above the surrounding sound level. The acoustic attenuator can easily be made from a short piece of metal tubing with an outer diameter of ½ ″. Squeeze a piece of paper
tissue into the tube, and compress it until the desired attenuation is obtained. Up to 40 to 60 dB of
acoustic attenuation can be obtained.
Reference Orientation
Fig.3.2 shows the reference orientation relative to the RF-emitter/receiver that is common to both
Emission and Immunity tests.
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CHAPTER 3
Conformance Testing
17
Fig.3.2
Reference
orientation of Type
2250 relative to the
RF-emitter/receiver
040139
3.6.3
Securing of Microphone Cables during EMC Test
The cable arrangement is common for both the Emission and Immunity tests.
During test, any excessive cable is folded back on itself in an even number of figure eights, as
indicated in Fig.3.2. The microphone and preamplifier assembly is arranged approximately 25 cm
above Hand-held Analyzer Type 2250, with the Microphone facing the RF source.
3.6.4
Accessories
Detailed part descriptions including power supplies, cable types, cable lengths and microphone accessories are given in Chapter 1 of this manual (see Fig.1.1, Table 1.1 and Table 1.2).
Windscreens have no influence on Emission and Immunity, but the metal parts of UA 1404 change the
resonance frequencies of the microphone and preamplifier assembly. Therefore, measurements must be
taken with UA 1404 mounted, but without the windscreen and raincover mounted.
3.6.5
Testing EMC According to IEC 60804
The exponential time-averaged detectors in Hand-held Analyzer Type 2250 are digital, and their results
are calculated based on the same samples that are used for calculating the linear time-averaged detectors.
Therefore, the LxF measurement values will be equal to short Lxeq values when measuring steady signal
levels.
For this reason, measurement of LxF must be utilised during test for Immunity to RF signals when
testing according to both IEC 60651 and IEC 60804. That is to say, only one test has to be carried out
and no special operating mode giving a short duration Lxeq measurement is provided.
3.6.6
Normal Mode of Operation during EMC Test
The hardware configurations for the normal mode of operation are defined in section 1.3.
Emission
The greatest level of radio frequency emission is radiated from Hand-held Analyzer Type 2250 when
set up as follows:
1) Connect Microphone Type 4189 and Microphone Preamplifier ZC 0032 to the top socket of Type
2250.
2) Select the Sound Level Meter Project Template.
3) On the Setup display:
• Set Measurement Mode to Manual
• Set Input to Top Socket
• Set Micr. Used to the mounted microphone
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18
Hand-held Analyzer Type 2250 – Instruction Manual
4) Start the measurement and let it run during test.
Immunity as Sound Level Meter
The highest Susceptibility (Susceptibility = 1/Immunity) to radio frequency fields, is achieved when
Hand-held Analyzer Type 2250 is set up as follows:
1) Connect Microphone Type 4189 and Microphone Preamplifier ZC 0032 to the top socket of Type 2250.
2) Select the Sound Level Meter Project Template.
3) On the Setup display:
• Set Frequency Weightings to AZ for Broadband (Excl. Peak)
• Set Measurement Mode to Manual
• Set Input to Top Socket
• Set Micr. Used to the mounted microphone
4) Calibrate the microphone.
5) Start the measurement and let it run during test.
6) Observe LAF during test.
Testing Immunity According to IEC 61260
Note: This test requires Frequency Analysis Software BZ 7223.
The highest Susceptibility (Susceptibility = 1/Immunity) to radio frequency fields for the filter sets is
achieved when Hand-held Analyzer Type 2250 is set up as follows:
1) Short-circuit the rear ‘Input’ socket of Type 2250.
2) Select the Frequency Analyzer Project Template.
3) On the Setup display:
• Set Frequency Weightings to CZ for Broadband (Excl. Peak) and to Z for Spectrum
• Set Measurement Mode to Manual
• Set Bandwidth to 1/3-octave
• Set Input to Rear Socket
• Set Micr. Used to No Transducer
4) Calibrate the input by typing in the Nominal Sensitivity of the microphone: 0.05.
5) Start the measurement and let it run during test.
6) Observe LZF at 1 kHz during test.
Only 1/3-octave-band filters need to be tested. This is because the filters are digital, and no disturbance
at the filter input will show up to be greater at 1/1-octave bandwidth than at 1/3-octave bandwidth.
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19
Chapter 4
Specifications
4.1
Specifications
Specifications are given for the configuration detailed in Chapter 1.
Unless specifically noted, specifications are given as typical data under Reference Environmental Conditions, and with the system calibrated to the nominal microphone sensitivity.
Note: The L-weighting is equivalent to the Z-weighting defined in IEC 61672–1, see section 2.4.
4.2
Standards
Hand-held Analyzer Type 2250 conforms to the following International Standards and Classes/Types/
Groups with the accessories specified in Fig.1.1, along with BZ 7222 Sound Level Meter software
module and BZ 7223 Frequency Analysis Software module:
•
IEC 60651 (1979) plus Amendment 1 (1993–02) and Amendment 2 (2000–10), Type 1, Group Z
•
IEC 60804 (2000-10), Type 1, Group Z
•
IEC 61672-1 (2002-05), Class 1, Group Z
•
DIN 45657 (1997-07)
•
ANSI S1.4 –1983 (R 1997) plus ANSI S1.4A -1985 Amendment, Type 1
•
ANSI S1.43 –1997, Type 1
Hand-held Analyzer Type 2250 conforms to the following International Standards and Classes/Types/
Groups with the accessories specified in Fig.1.1 and BZ 7223 Frequency Analysis Software module:
•
IEC 61260 (1995-07) plus Amendment 1 (2001-09), 1/1-octave Bands and 1/3-octave Bands, Class 0,
Group Z, all filters and both channels
•
ANSI S1.11 –1986 (R 1993), 1/1-octave Bands and 1/3-octave Bands, Order 3, Type 0-C, Optional
Range
In the text elsewhere in this manual, references to these standards are shortened to the standards name
but are to be understood as the full text above.
The International IEC Standards are adopted as European standards by CENELEC. When this happens,
the letters IEC are replaced with EN and the number is retained. Type 2250 also conforms to these EN
Standards.
4.3
Reference Environmental Conditions
Air temperature: 23°C
Static pressure: 101.325 kPa
Relative humidity: 50%
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Hand-held Analyzer Type 2250 – Instruction Manual
20
4.4
Reference Conditions for Acoustic Calibration
Reference range: Only one range exists and this is the reference range
Reference sound pressure level: 94.00 dB re 20 µPa
Reference frequency: 1 kHz
4.5
Microphone
Microphone Type 4189 and Preamplifier Type ZC 0032:
Type: Prepolarized Free-field ½ ″ Condenser Microphone
Nominal Open Circuit Sensitivity: 50 mV/Pa, (corresponding to –26 dB re 1 V/Pa) ± 1.5 dB
Capacitance: 13 pF (at 250 Hz)
Nominal preamplifier attenuation: 0.25 dB
Extension cables between Type ZC 0032 and Type 2250: Up to 100 m without affecting measurements. Note: EMC is only tested with a 10 m cable (AO 0442)
Microphone reference point: The centre of the front surface of the microphone protection grid. With
UA 1404 mounted, this point can be difficult to find. Therefore, it is marked on the windscreen
Reference direction of sound incidence: See Fig.4.14 to Fig.4.15
4.6
Frequency Response
The frequency responses are given in tabular form in Appendix A and in graphical form in this section.
The Expanded Uncertainties of Measurement in the tables are the two-sigma limits maintained in the
Brüel & Kjær production for the specific product. This means that the correct value lies in the range of
the measured value plus/minus the Expanded Uncertainties of Measurement with a probability of 95%.
Note: This range is not related to the production spread. The range is for a specific typical unit. The
factory acceptance tests at Brüel & Kjær ensure that the ranges for all units are within the IEC 61672–1
limits.
The IEC 61672–1 limits, reduced by the Maximum Expanded Uncertainties of Measurement from Appendix A of IEC 61672–1, are also drawn in the graphs. These Maximum Expanded Uncertainties of
Measurement are the maximum uncertainties that a test organisation may have on its measurements
when it performs conformance tests according to IEC 61672.
4.6.1
Electrical Frequency Responses
The electrical frequency response depends on the selected frequency weighting, see Fig.4.1.
The Z-weighted electrical frequency response is given in the "Electrical Response" column of the
appropriate tables of Table A.2 to Table A.9 in Appendix A.
The electrical frequency responses are valid both for introduction of the electrical signal through the
recommended means to substitute the microphone with an electrical input facility (see section 3.4) and
for the rear ‘Input’ socket.
Z-weighted frequency range: ±0.15 dB, 11 Hz to 22 kHz
Extended low frequency range: ±0.15 dB, 4 Hz to 22 kHz
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CHAPTER 4
Specifications
Fig.4.1
21
Electrical frequency response of Hand-held Analyzer Type 2250 with the Microphone Type parameter set
to ‘Unknown’ (in the Transducers display) for the transducer used, see also Table A.1
Frequency weightings
10 dB
L
0 dB
-10 dB
C
-20 dB
A
-30 dB
-40 dB
-50 dB
-60 dB
10 Hz
100 Hz
1 kHz
10 kHz
020157
Fig.4.2
Deviations from the ideal electrical frequency response with the Microphone Type parameter set to
‘Unknown’ (in the Transducers display) for the transducer used, see Table A.1. Reduced IEC 61672–1
limits are also drawn on the graph
Uncompensated
3 dB
2 dB
A,C
1 dB
0 dB
L
-1 dB
-2 dB
-3 dB
10 Hz
100 Hz
1 kHz
10 kHz
020158
4.6.2
Acoustic Frequency Responses
As can be seen from Fig.4.2, the deviations from the ideal frequency weightings for the A- and Cweightings differ only slightly at very high frequencies from the deviations for the Z-weighting.
The Z-weighting is included in the data given in section 4.6.4, section 4.6.5 and Appendix A.
Thus the A- and C-weighted free-field and diffuse-field frequency responses can be found by adding
the ideal A- and C-weighted responses to the responses given in section 4.6.4, section 4.6.5 and
Appendix A.
BE171211.book Page 22 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
22
4.6.3
Fig.4.3
Low-frequency Responses
Low-frequency response of Hand-held Analyzer Type 2250 (including Microphone Type 4189)
2
1
Response (dB)
0
-1
-2
-3
-4
1
Normal 2250+ZC0032+4189
Extended 2250+ZC0032+4189
Normal Electrical Input Socket
Extended Electrical Input Socket
IEC Class 0
IEC Class 0
4.6.4
100
10
Frequency (Hz)
040162
Free-field Frequency Responses
The Free-field Frequency responses for plane progressive sinusoidal sound waves incident from the
reference direction with Z-frequency-weighting are provided in Fig.4.4 to Fig.4.9.
Fig.4.4
Free-field frequency response of Microphone Type 4189 only, with sound field at 0° angle of incidence to
the microphone. Sound Field Correction parameter set to ‘Free-field’, and the Windscreen Correction
parameter set to ‘None’, see Table A.2. Reduced IEC 61672–1 limits are also drawn on the graph.
dB
4
2
0
-2
-4
100
1000
10000
Hz
040163
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CHAPTER 4
Specifications
Fig.4.5
23
Influence of Hand-held Analyzer body on free-field response for Hand-held Analyzer Type 2250 (including
Microphone Type 4189) with the sound field at 0° angle of incidence to the microphone. Reduced
IEC 61672–1 limits are also drawn on the graph.
dB
4
2
0
-2
-4
100
1000
10000
Hz
040164
Fig.4.6
Free-field frequency response of Hand-held Analyzer Type 2250 (including Microphone Type 4189) and
sound field at 0° angle of incidence to the microphone. Sound Field Correction parameter set to ‘Free-field’
and the Windscreen Correction parameter set to ‘None’, see Table A.3 Reduced IEC 61672–1 limits are
also drawn on the graph..
dB
4
2
0
-2
-4
100
1000
10000
Hz
040165
Fig.4.7
Free-field frequency response of Microphone Type 4189 only, with Windscreen UA 1650 fitted and sound
field at 0° angle of incidence to the microphone. Sound Field Correction parameter set to ‘Free-field’ and
the Windscreen Correction parameter set to ‘Auto Detect’ or ‘UA 1650’, see Table A.4. Reduced
IEC 61672–1 limits are also drawn on the graph ]
dB
4
2
0
-2
-4
100
1000
10000
Hz
040167
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Hand-held Analyzer Type 2250 – Instruction Manual
24
Fig.4.8
Free-field frequency response of Hand-held Analyzer Type 2250 (including Microphone Type 4189),
Windscreen UA 1650 fitted and sound field at 0° angle of incidence to the microphone. Sound Field
Correction parameter set to ‘Free-field’ and the Windscreen Correction parameter set to ‘Auto Detect’ or
‘UA 1650’, see Table A.5.
dB
4
2
0
-2
-4
100
1000
10000
Hz
040168
Fig.4.9
Free-field frequency response of Microphone Type 4189, with sound field at 0° angle of incidence to the
microphone and Outdoor Microphone Kit UA 1404 fitted. Sound Field Correction parameter set to ‘Freefield’ and the Windscreen Correction parameter set to ‘UA 1404’. See Table A.6. Reduced IEC 61672–1
limits are also drawn on the graph.
dB
4
2
0
-2
-4
100
1000
10000
Hz
040170
4.6.5
Diffuse-field Frequency Responses
The Diffuse-field frequency responses (also called random-incidence frequency responses) with Zfrequency-weighting are provided in Fig.4.10 to Fig.4.12.
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CHAPTER 4
Specifications
25
Fig.4.10 Diffuse-field frequency response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), or
Microphone Type 4189 only, with Sound Field Correction parameter set to ‘Diffuse-field’ and the
Windscreen Correction parameter set to ‘None’, see Table A.7. Reduced IEC 61672–1 limits are also
drawn on the graph
dB
4
2
0
-2
-4
100
1000
10000
Hz
040171
Fig.4.11 Diffuse-field frequency response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), or
Microphone Type 4189 only, with Windscreen UA 1650 fitted, Sound Field Correction parameter set to
‘Diffuse-field’ and the Windscreen Correction parameter set to ‘Auto Detect’ or ‘UA 1650’, see Table A.8.
Reduced IEC 61672–1 limits are also drawn on the graph
dB
4
2
0
-2
-4
100
1000
10000
Hz
040173
Fig.4.12 Diffuse-field frequency response for Microphone Type 4189 only, with Outdoor Microphone Kit UA 1404
fitted, Sound Field Correction parameter set to ‘Diffuse-field’ and the Windscreen Correction parameter set
to UA 1404, see Table A.9. Reduced IEC 61672–1 limits are also drawn on the graph
dB
4
2
0
-2
-4
100
1000
10000
Hz
040175
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Hand-held Analyzer Type 2250 – Instruction Manual
26
4.6.6
Free-field Frequency Responses for Diffuse-field Calibrated Instruments
According to IEC 60651 and IEC 60804, the free-field frequency response in the reference direction for
diffuse-field calibrated instruments must be specified. This response is given in the “Electrical Response” column of Table A.7.
4.7
Directional Response
This section gives directional responses for plane progressive sinusoidal sound waves normalised to the
response in the reference direction.
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CHAPTER 4
Specifications
Fig.4.13 Directional response for Microphone Type 4189 only. See Table A.10 to Table A.12.
a)
330°
0°
5
dB
0
b)
330°
30°
300°
60°
-10
-15
-20
-20
-25
90°
240°
-25
270°
120°
210°
150°
330°
0°
5
dB
0
d)
30°
330°
-5
300°
0°
5
dB
0
300°
-15
-20
-20
-25
90°
240°
120°
150°
180°
60°
-10
-15
210°
30°
-5
60°
-10
270°
150°
180°
180°
c)
90°
240°
120°
210°
60°
-10
-15
270°
30°
-5
-5
300°
0°
5
dB
0
-25
270°
90°
240°
120°
210°
150°
180°
a: 630 Hz, b: 1600 Hz, c: 4000 Hz, d: 10000 Hz
a: 800 Hz, b: 2000 Hz, c: 5000 Hz, d: 12500 Hz
a: 1000 Hz, b: 2500 Hz, c: 6300 Hz, d: 16000 Hz
a: 1250 Hz, b: 3150 Hz, c: 8000 Hz, d: 20000 Hz
040176
27
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28
Hand-held Analyzer Type 2250 – Instruction Manual
Fig.4.14 Sensitivity variations of Microphone Type 4189 (only) at sound incidence angles within ±θ ° from the
reference direction. See Table A.13. Reduced IEC 61672–1 limits are also drawn on the graph
dB
± 30°
20
15
10
5
0
100
1000
10000
dB
Hz
± 90°
20
15
10
5
0
100
1000
10000
dB
Hz
± 150°
20
15
10
5
0
100
1000
10000
Hz
040177
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CHAPTER 4
Specifications
29
Fig.4.15 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in a
plane parallel to the Hand-held Analyzer’s display, see Table A.20 to Table A.22.
a)
330°
0°
5
dB
0
b)
0°
5
dB
0
330°
30°
-5
-5
300°
300°
60°
-10
-15
-20
-20
90°
240°
-25
270°
120°
210°
150°
150°
180°
180°
c)
330°
0°
5
dB
0
d)
30°
0°
5
dB
0
330°
60°
-10
300°
-15
-20
-20
-25
90°
240°
120°
210°
60°
-10
-15
270°
30°
-5
-5
300°
90°
240°
120°
210°
60°
-10
-15
-25
270°
30°
150°
-25
270°
90°
240°
120°
210°
150°
180°
180°
0°
270°
90°
a: 630 Hz, b: 1600 Hz, c: 4000 Hz, d: 10000 Hz
a: 800 Hz, b: 2000 Hz, c: 5000 Hz, d: 12500 Hz
a: 1000 Hz, b: 2500 Hz, c: 6300 Hz, d: 16000 Hz
a: 1250 Hz, b: 3150 Hz, c: 8000 Hz, d: 20000 Hz
040180
BE171211.book Page 30 Thursday, May 27, 2004 1:01 PM
30
Hand-held Analyzer Type 2250 – Instruction Manual
Fig.4.16 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in a
plane parallel to the long axis of Hand-held Analyzer, but perpendicular to the display, see Table A.23 to
Table A.25.
a)
330°
0°
5
dB
0
b)
0°
5
dB
0
330°
30°
-5
-5
300°
300°
60°
-10
-15
-20
-20
-25
90°
240°
-25
270°
120°
210°
150°
150°
180°
180°
c)
330°
0°
5
dB
0
d)
30°
0°
5
dB
0
330°
60°
-10
300°
-15
-20
-20
90°
240°
120°
210°
150°
60°
-10
-15
-25
270°
30°
-5
-5
300°
90°
240°
120°
210°
60°
-10
-15
270°
30°
-25
270°
90°
240°
120°
210°
150°
180°
180°
0°
270°
90°
a: 630 Hz, b: 1600 Hz, c: 4000 Hz, d: 10000 Hz
a: 800 Hz, b: 2000 Hz, c: 5000 Hz, d: 12500 Hz
a: 1000 Hz, b: 2500 Hz, c: 6300 Hz, d: 16000 Hz
a: 1250 Hz, b: 3150 Hz, c: 8000 Hz, d: 20000 Hz
040181
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CHAPTER 4
Specifications
31
Fig.4.17 Sensitivity variations of Hand-held Analyzer Type 2250 (including Microphone Type 4189) at sound
incidence angles within ±θ ° from the reference direction, see Table A.26. Reduced IEC 61672–1 limits are
also drawn on the graph
dB
± 30°
20
15
10
5
0
100
1000
10000
dB
Hz
± 90°
20
15
10
5
0
100
1000
10000
dB
Hz
± 150°
20
15
10
5
0
100
1000
10000
Hz
040182
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32
Hand-held Analyzer Type 2250 – Instruction Manual
Fig.4.18 Directional response for Microphone Type 4189 only, with Windscreen UA 1650 fitted, see Table A.30 to
Table A.32.
a)
330°
0°
5
dB
0
b)
330°
30°
300°
60°
-10
-15
-20
-20
-25
90°
240°
-25
270°
120°
210°
150°
330°
0°
5
dB
0
d)
30°
330°
-5
300°
0°
5
dB
0
300°
-15
-20
-20
-25
90°
240°
120°
150°
180°
60°
-10
-15
210°
30°
-5
60°
-10
270°
150°
180°
180°
c)
90°
240°
120°
210°
60°
-10
-15
270°
30°
-5
-5
300°
0°
5
dB
0
-25
270°
90°
240°
120°
210°
150°
180°
a: 630 Hz, b: 1600 Hz, c: 4000 Hz, d: 10000 Hz
a: 800 Hz, b: 2000 Hz, c: 5000 Hz, d: 12500 Hz
a: 1000 Hz, b: 2500 Hz, c: 6300 Hz, d: 16000 Hz
a: 1250 Hz, b: 3150 Hz, c: 8000 Hz, d: 20000 Hz
040184
BE171211.book Page 33 Thursday, May 27, 2004 1:01 PM
CHAPTER 4
Specifications
33
Fig.4.19 Sensitivity variations of Microphone Type 4189 only, with Windscreen UA 1650 fitted, at sound incidence
angles within ±θ ° from the reference direction, see Table A.33. Reduced IEC 61672–1 limits are also
drawn on the graph.
dB
± 30°
20
15
10
5
0
100
1000
10000
dB
Hz
± 90°
20
15
10
5
0
100
1000
10000
dB
Hz
± 150°
20
15
10
5
0
100
1000
10000
Hz
040185
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34
Hand-held Analyzer Type 2250 – Instruction Manual
Fig.4.20 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), with
Windscreen UA 1650 fitted and measured in a plane parallel to the Hand-held Analyzer’s display, see
Table A.34 to Table A.36.
a)
330°
0°
5
dB
0
b)
0°
5
dB
0
330°
30°
-5
-5
300°
300°
60°
-10
-15
-20
-20
-25
90°
240°
-25
270°
120°
210°
150°
150°
180°
180°
c)
330°
0°
5
dB
0
d)
30°
0°
5
dB
0
330°
60°
-10
300°
-15
-20
-20
90°
240°
120°
210°
150°
60°
-10
-15
-25
270°
30°
-5
-5
300°
90°
240°
120°
210°
60°
-10
-15
270°
30°
-25
270°
90°
240°
120°
210°
150°
180°
180°
0°
270°
90°
a: 630 Hz, b: 1600 Hz, c: 4000 Hz, d: 10000 Hz
a: 800 Hz, b: 2000 Hz, c: 5000 Hz, d: 12500 Hz
a: 1000 Hz, b: 2500 Hz, c: 6300 Hz, d: 16000 Hz
a: 1250 Hz, b: 3150 Hz, c: 8000 Hz, d: 20000 Hz
040186
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CHAPTER 4
Specifications
35
Fig.4.21 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), with
Windscreen UA 1650 fitted and measured in a plane parallel to the long axis of Hand-held Analyzer, but
perpendicular to the display, see Table A.37 to Table A.39.
a)
330°
0°
5
dB
0
b)
0°
5
dB
0
330°
30°
-5
-5
300°
300°
60°
-10
-15
-20
-20
90°
240°
-25
270°
120°
210°
150°
150°
180°
180°
c)
330°
0°
5
dB
0
d)
30°
0°
5
dB
0
330°
60°
-10
300°
-15
-20
-20
90°
240°
120°
210°
150°
60°
-10
-15
-25
270°
30°
-5
-5
300°
90°
240°
120°
210°
60°
-10
-15
-25
270°
30°
-25
270°
90°
240°
120°
210°
150°
180°
180°
0°
270°
90°
a: 630 Hz, b: 1600 Hz, c: 4000 Hz, d: 10000 Hz
a: 800 Hz, b: 2000 Hz, c: 5000 Hz, d: 12500 Hz
a: 1000 Hz, b: 2500 Hz, c: 6300 Hz, d: 16000 Hz
a: 1250 Hz, b: 3150 Hz, c: 8000 Hz, d: 20000 Hz
040187
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36
Hand-held Analyzer Type 2250 – Instruction Manual
Fig.4.22 Sensitivity variations of Hand-held Analyzer Type 2250 (including Microphone Type 4189) and Windscreen
UA 1650 fitted, at sound incidence angles within ±θ ° from the reference direction, see Table A.40.
Reduced IEC 61672–1 limits are also drawn on the graph.
dB
± 30°
20
15
10
5
0
100
1000
10000
dB
Hz
± 90°
20
15
10
5
0
100
1000
10000
dB
Hz
± 150°
20
15
10
5
0
100
1000
10000
Hz
040188
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CHAPTER 4
Specifications
37
Fig.4.23 Directional response for Microphone Type 4189 only, with Outdoor Microphone Kit UA 1404 fitted, see
Table A.44 to Table A.46.
a)
330°
0°
5
dB
0
b)
330°
30°
300°
60°
-10
-15
-20
-20
90°
240°
-25
270°
120°
210°
150°
330°
0°
5
dB
0
d)
30°
330°
60°
-10
300°
-15
-20
-20
90°
240°
120°
210°
30°
150°
180°
60°
-10
-15
-25
270°
0°
5
dB
0
-5
-5
300°
150°
180°
180°
c)
90°
240°
120°
210°
60°
-10
-15
-25
270°
30°
-5
-5
300°
0°
5
dB
0
-25
270°
90°
240°
120°
210°
150°
180°
a: 630 Hz, b: 1600 Hz, c: 4000 Hz, d: 10000 Hz
a: 800 Hz, b: 2000 Hz, c: 5000 Hz, d: 12500 Hz
a: 1000 Hz, b: 2500 Hz, c: 6300 Hz, d: 16000 Hz
a: 1250 Hz, b: 3150 Hz, c: 8000 Hz, d: 20000 Hz
040190
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38
Hand-held Analyzer Type 2250 – Instruction Manual
Fig.4.24 Sensitivity variations of Microphone Type 4189 only and Outdoor Microphone Kit UA 1404 fitted, at sound
incidence angles within ±θ ° from the reference direction, see Table A.47. Reduced IEC 61672–1 limits are
also drawn on the graph.
dB
± 30°
20
15
10
5
0
100
1000
10000
dB
Hz
± 90°
20
15
10
5
0
100
1000
10000
dB
Hz
± 150°
20
15
10
5
0
100
1000
10000
Hz
040191
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CHAPTER 4
Specifications
4.8
Self-generated Noise
Self-generated noise is given for nominal microphone Open Circuit Sensitivity.
4.8.1
Maximum Broadband Self-generated Noise
Table 4.1
Maximum Broadband
Self-generated Noise
Frequency Weighting (dB)
A-weighting
C-weighting
Z-weightinga
Z-weightinga
Extended Low
Frequency
Microphone
16.1
15.0
16.8
16.8
Electrical
15.7
16.3
21.4
28.4
Total
18.9
18.7
22.7
28.7
Maximum Noise
a. 30 seconds LZeq
4.8.2
Typical Broadband Self-generated Noise
Table 4.2
Typical
Broadband
Self-generated Noise
Frequency Weighting (dB)
Maximum Noise
Z-weightinga
Extended Low
Frequency
C-weighting
Z-weighting
Microphone
14.6
13.5
15.3
15.3
Electrical
12.5
13.1
18.1
25.5
Total
16.7
16.3
19.9
25.9
a. 30 seconds LZeq
4.8.3
a
A-weighting
Typical Self-generated Noise Spectra
Typical spectra for self-generated noise are shown in Fig.4.25 and Fig.4.26.
39
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40
Hand-held Analyzer Type 2250 – Instruction Manual
Fig.4.25 Typical self-generated noise, 1/1-octave band
Fig.4.26 Typical self-generated noise, 1/3-octave band
BE171211.book Page 41 Thursday, May 27, 2004 1:01 PM
CHAPTER 4
Specifications
4.9
41
Measuring Range
Note: Type 2250 has a single measuring range. The instrument, therefore, has no measuring range (or
level range) controls.
The Upper Limit in the following sections is based on the guaranteed worst-case limit for Type 2250
and the nominal Open Circuit Sensitivity of the microphone. The Overload Limit can, due to tolerances
in Type 2250, be up to 1.5 dB higher than the worst-case limit, but tolerances specified in the International Standards are maintained as long as no Overload is indicated. The Overload Limit is equal to the
Max. Input Level as displayed on the Details tab of the Calibration display, selected from the Main
Menu.
The Lower Limit in the following sections is based on the guaranteed worst-case limit for Type 2250
and the nominal Open Circuit Sensitivity of the microphone, under Reference Environmental Conditions.
4.9.1
Maximum Sound Level
The maximum Sound Level that the Sound Level Meter can accomodate without causing damage to
the Sound Level Meter: 159 dB
4.9.2
Total Range
The difference between the Upper Limit on the least sensitive level range, and the lowest sound
pressure level measurable on the most sensitive level range, which can be measured at 1 kHz within the
most conservative tolerance limits, specified in the International Standards IEC 60651, IEC 60804 and
IEC 61672–1:
Table 4.3
Total range
4.9.3
Frequency Weighting
A-weighting
(dB)
C-weighting
(dB)
Z-weighting
(dB)
Z-weighting
(dB)
Extended Low
Frequency
140 – 26.6
140 – 27.5
140 – 32.6
140 – 39.6
Primary Indicator Range
Primary Indicator Range according to the International Standard IEC 60651:
Table 4.4
Primary Indicator
Range
Lower Limit
Upper
Limit
(dB)
A-weighting
(dB)
C-weighting
(dB)
Z-weighting
(dB)
Z-weighting
(dB)
Extended Low
Frequency
125
25.7
26.3
31.4
38.4
BE171211.book Page 42 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
42
4.9.4
Indicator Range
Indicator Range according to the International Standard IEC 60804:
Table 4.5
Indicator Range
4.9.5
Lower Limit
Upper
Limit
(dB)
A-weighting
(dB)
C-weighting
(dB)
Z-weighting
(dB)
Z-weighting
(dB)
Extended Low
Frequency
140
25.7
26.3
31.4
38.4
Linearity Range
Linearity Range according to the International Standard IEC 60804 is the difference between the Upper
and Lower Limit in the following table:
Table 4.6
Linearity Range
4.9.6
Lower Limit
Upper
Limit
(dB)
A-weighting
(dB)
C-weighting
(dB)
Z-weighting
(dB)
Z-weighting
(dB)
Extended Low
Frequency
140
23.7
24.3
29.4
36.4
Pulse Range
Pulse Range according to the International Standard IEC 60804 is the difference between the Upper and
Lower Limit in the following table:
Table 4.7
Pulse Range
4.9.7
Lower Limit
Upper
Limit
(dB)
A-weighting
(dB)
C-weighting
(dB)
Z-weighting
(dB)
Z-weighting
(dB)
Extended Low
Frequency
143
23.7
24.3
29.4
36.4
Linear Operating Range
Note: Type 2250 has a single operating range.
The starting point for all the Linear Operating Range tests is 94.0 dB.
Linear Operating Range according to the International Standard IEC 61672–1:
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CHAPTER 4
Specifications
Table 4.8
Linear Operating
Range
4.9.8
Lower
Limit
Upper Limit
FrequencyWeighting
43
31.5 Hz
(dB)
1 kHz
(dB)
4 kHz
(dB)
8 kHz
(dB)
12.5 kHz
(dB)
All
(dB)
A-weighting
100.6
140
140
138.9
135.7
26.9
C-weighting
137.0
140
139.2
137.0
133.8
27.5
Z-weighting
140
140
140
140
140
32.6
Z-weighting
Extended Low
Frequency
140
140
140
140
140
39.6
Peak C Range
Peak C Range according to the International Standard IEC 61672-1 is: 143 – 31.3 dB
4.10
Detectors
Display-update rates: Lxy broadband bars and spectra every 0.2 s; all other spectra and numbers
every 1 s.
4.10.1
Exponential Averaging
Exponential averaging times: Fast (250 ms), Slow (2000 ms), Impulse (70 ms + 1500 ms hold time
constant)
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44
Hand-held Analyzer Type 2250 – Instruction Manual
Response to tone bursts for exponential averaging detectors according to IEC 60651 and DIN 45657:
Table 4.9
Response to tone
bursts for exponential averaging
detectors
Time
Weighting
F
S
I
Duration of
test tone burst
(ms)
Maximum
response to test
tone burst
referred to
response to
continuous signal
(dB)
Continuous
0
200
Standard
tolerances on
maximum response
(dB)
Type 2250
tolerances on
maximum
response
(dB)
–0.98
±1
±0.1
100
–2.59
±2
±0.1
50
–4.82
±2
±0.1
20
–8.30
±2
±0.1
10
–11.14
±2
±0.1
5
–14.07
±2
±0.1
2
–17.99
±2
±0.1
1
–20.99
±2
±0.1
0.5
–23.99
±2
±0.1
0.25
–26.99
±2
±0.1
2000
–0.63
–
±0.1
500
–4.05
±1
±0.1
200
–7.42
–
±0.1
50
–13.12
–
±0.1
20
–3.61
±1.5
±0.1
5
–8.76
±2
±0.1
2
–12.55
±2
±0.1
Note: The maximum response to test tone burst referred to response to continuous signal is calculated from the formula in IEC 60651
appendix C.
4.10.2
Linear Averaging
Linear averaging times: 1 second to 24 hours, in steps of 1 second
Settling time according to IEC 60804: < 1 second
Nominal delay time between operation of the reset facility and re-initiation of a measurement
according to IEC 61672–1: < 2 seconds
Time interval after completion of a measurement before a reading is displayed according to
IEC 61672–1: < 1 s
Minimum hold time according to IEC 60804: Results of a Timed Measurement are held until a new
measurement is initiated or the result is reset.
4.10.3
Peak
Peak onset time according to IEC 60651: < 100 µs
BE171211.book Page 45 Thursday, May 27, 2004 1:01 PM
CHAPTER 4
Specifications
4.11
45
Spectrum Analysis
Note: Spectrum analysis requires Frequency Analysis Software BZ 7223.
Analytical filter design: Optimised Z-transformation of analogue Butterworth filters
Base: 2
Sampling rate: Octave-based down-sampling from 48 kHz
Reference attenuation: 0 dB
4.11.1
1/1- Octave band Centre Frequencies
Nominal: 8 Hz1, 16 Hz, 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz2
Exact (5 digits): 7.8125 Hz, 15.625 Hz, 31.25 Hz, 62.5 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz,
4 kHz, 8 kHz, 16 kHz
Real-time frequency range: 8 Hz to 16 kHz centre frequencies.
Fig.4.27
The shapes of the
1/1- Octave band
filters (from 0 to
–80 dB). The
innermost and
outermost curves
show IEC 61260
tolerances
Response
(dB)
20
0
– 20
– 40
– 60
– 80
0.01
Fig.4.28
The shapes of the
1/1- Octave band
filters (from 0 to
–3.5 dB). The
innermost and
outermost curves
show IEC 61260
tolerances
Response
(dB)
0.1
1
Multiple of Center Frequency
10
100
980474e
0.5
– 0.5
– 1.5
– 2.5
– 3.5
0.5
1
Multiple of Center Frequency
2.0
980472e
1 Only accessible when Extended Low Frequency set to On in the Setup menu.
2 These filters do not fulfil the requirements of paragraph 7.2.3 in the ANSI S1.11-1986 standard. The paragraph states, at which
frequency the anti-alias filter cut-off should be set. For the realisation of the filters in Type 2250, this has no influence on the
quality of the measurements.
BE171211.book Page 46 Thursday, May 27, 2004 1:01 PM
46
Hand-held Analyzer Type 2250 – Instruction Manual
4.11.2
1/3-Octave band Cente Frequencies
Nominal: 6.3 Hz1, 8.0 Hz1, 10 Hz1, 12.5 Hz, 16 Hz, 20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz,
100 Hz, 125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz,
1.6 kHz, 2 kHz, 2.5 kHz, 3.15 kHz, 4 kHz, 5 kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 16 kHz2, 20 kHz2
Exact (5 digits): 6.201 Hz, 7.8125 Hz, 9.8485 Hz, 12.401 Hz, 15.625 Hz, 19.697 Hz, 24.803 Hz,
31.25 Hz, 39.373 Hz, 49.616 Hz, 62.5 Hz, 78.745 Hz, 99.213 Hz, 125 Hz, 157.49 Hz, 198.43 Hz, 250 Hz,
314.98 Hz, 396.85 Hz, 500 Hz, 629.96 Hz, 793.70 Hz, 1 kHz, 1.2599 kHz, 1.5874 kHz, 2 kHz,
2.5198 kHz, 3.1748 kHz, 4 kHz, 5.0397 kHz, 6.3496 kHz, 8 kHz, 10.079 kHz, 12.699 kHz, 16 kHz,
20.159 kHz
Real-time frequency range: 6.3 Hz to 20 kHz, centre frequencies.
Fig.4.29
The shapes of the
1/3-octave band
filters (from 0 to
– 80 dB). The
innermost and
outermost curves
show IEC 61260
tolerances
Response
(dB)
20
0
– 20
– 40
– 60
– 80
0.1
Fig.4.30
The shapes of the
1/3-octave band
filters (from 0 to
– 3.5 dB). The
innermost and
outermost curves
show IEC 61260
tolerances
Response
(dB)
1
Multiple of Center Frequency
10
980473e
0.5
– 0.5
– 1.5
– 2.5
– 3.5
0.85
4.11.3
1
Multiple of Center Frequency
1.15
980471e
Linear Operating Range
Linear Operating Range according to the International Standard IEC 61260, for electrical input, for all
filters in the filter banks:
1 Only accessible when Extended Low Frequency set to On in the Setup menu.
2 These filters do not fulfil the requirements of paragraph 7.2.3 in the ANSI S1.11-1986 standard. The paragraph states, at which
frequency the anti-alias filter cut-off should be set. For the realisation of the filters in Type 2250, this has no influence on the
quality of the measurements.
BE171211.book Page 47 Thursday, May 27, 2004 1:01 PM
CHAPTER 4
Specifications
Table 4.10
Linear
Operating
Range
Upper Limit
(dB)
47
Lower Limit 1/1-Octave Lower Limit 1/3-Octave
(dB)
(dB)
140
25.9
22.1
Below the Lower Limit, the Level Linearity Error is less than or equal to the error found in Fig.2.1
with Linh set to the Lower Limit – 11.5 dB.
4.11.4
Measurement Range
Measurement Range according to the International Standard IEC 61260 is the difference between the
Upper Limit of the Linear Operating Range on the least sensitive level range and the Lower Limit of
the Linear Operating Range on the most sensitive level range.
On Type 2250, the Measurement Range equals the Linear Operating Range, because the instrument
only has one range.
4.11.5
Octave Band Time Constants
At low centre frequencies, the B*T product for Fast time-weighting becomes too small to give statistically reliable measurements. To overcome this, the Fast time constant (125 ms) and the Slow time
constant (1000 ms) are replaced by progressively longer time constants with decreasing centre frequencies (and corresponding bandwidths).
Table 4.11 shows the Fast time constants for the full range of octave bands.
Table 4.11
Octave band Fast
Time Constants
1/1-Octave
Centre Frequency
(Hz)
1/3-Octave
Centre Frequency
(Hz)
Time Constant
(ms)
Averaging Time
(ms)
≥ 63
≥100
125 (Fast)
250 (Fast)
31.5
80, 63, 50
250
500
16
40, 31.5, 25
500
1000
8
20, 16, 12.5
1000
2000
–
10, 8, 6.3
2000
4000
Table 4.12 shows the Slow time constants for the full range of octave bands:
Table 4.12
Octave band Slow
Time Constants
1/1-Octave
Centre Frequency
(Hz)
1/3-Octave
Centre Frequency
(Hz)
Time Constant
(ms)
Averaging Time
(ms)
≥8
≥12.5
1000 (Slow)
2000 (Slow)
–
10, 8, 6.3
2000
4000
For a white Gaussian signal and for 1/1-octave centre frequencies from 8 Hz to 63 Hz, these time
constants give a maximum relative standard deviation of approximately 1.5 dB. For 1/3-octave centre
frequencies from 6.3 Hz to 160 Hz, these time constants give a maximum relative standard deviation of
approximately 2 dB.
4.12
Influence from the Operating Environment
The temperature and humidity specifications are given provided that no condensation inside the instrumentation results from the combination.
Excessive condensation may cause permanent damage to the instrumentation.
BE171211.book Page 48 Thursday, May 27, 2004 1:01 PM
48
Hand-held Analyzer Type 2250 – Instruction Manual
4.12.1
Environmental Stabilisation Time
Typical stabilisation time after change in environmental conditions is 1 minute.
When the instruments are moved from a warm environment with high humidity, to a colder environment, care should be taken not to produce condensation inside the instruments. In this case, much
longer stabilisation periods may be necessary.
4.12.2
Temperature
Operating temperature range: –10 to +50ºC (+14 to +122ºF)
Storage temperature range:
4.12.3
–25 to +70ºC (–13 to +158ºF)
Humidity
Operating humidity range: 0% < RH < 90%, providing there is no condensation.
4.12.4
Vibration
Vibration sensitivity (< 1000 Hz), measured with Z-weighting: Typically 62.5 dB for 1 ms–2, max
65 dB for 1 ms–2.
4.12.5
Magnetic Fields
Max. sensitivity to power line (50/60 Hz) magnetic field strength of 80 A/m:
Table 4.13
Magnetic Fields
Max. Sensitivity
Configuration
Most Sensitive Direction
E - field
Type 2250 alone
H - field
Type 4189 and
Type ZC 0032
alone
4.12.6
A-weighted
(dB)
C-weighted
(dB)
Z-weighted
(dB)
Not
detectable
< 19
< 20
Not
detectable
< 26
< 27
040141
Direction of
magnetic field
Immunity to Power and Radio-frequency Fields
Conforms to IEC 60651, IEC 60804 and IEC 61672–1 down to 50 dB.
Fig.4.31
The most sensitive
direction
040140
BE171211.book Page 49 Thursday, May 27, 2004 1:01 PM
CHAPTER 4
Specifications
4.13
Electrical Input to Connector Panel of Type 2250
4.13.1
Input Socket (Rear Socket)
49
Triaxial Lemo socket used for Direct input as well as CCLD input.
Direct Input:
Max. input level: ±14.14 VPeak, no damage for signals up to ±20 VPeak
Input impedance: > 1 MΩ
CCLD Input:
Max. input level: ±7.07 VPeak (no indication for violation of this level), no damage for signals in the
range –10 to +25 V
CCLD current: 4 mA @ 25°C
4.13.2
Trigger Socket
Triaxial Lemo socket:
Input Range: ±20 VPeak, no damage for signals up to ±50 VPeak
Supply for Remote Control Switch: 5 V through Silicium diode and 5 k resistor
Input impedance: > 1 MΩ
4.14
Electrical Output from Type 2250
4.14.1
Output Socket
Triaxial Lemo socket:
Output Signal: Input conditioned; A-, C-, or Z-weighted; covers the nominal range 20 to 140 dB
Gain Adjustment: –80 to +60 dB
Max. peak output level: ±4.46 V
Output impedance: 50 Ω
Min. load impedance: 15 kΩ ⎟⎟ 1 nF for < 0.2 dB attenuation from DC to 20 kHz, short-circuit
proof without affecting the measurement results
Max DC offset: ±15 mV
4.14.2
Headphones Socket
Stereo MiniJack socket:
Output Signal: Input signal can be monitored using this socket with headphones/earphones
Gain Adjustment: – 80 to +60 dB
Max. peak output voltage: ±1.4 V
Output impedance: 2.2 Ω in each channel, short-circuit proof without affecting the measurement
results
BE171211.book Page 50 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
50
4.15
4.15.1
Power Supply
External Power to Instrument
Supply Voltage: 8 – 24 V DC, ripple voltage < 20 mV
Current requirement: min. 1.5 amp.
Power consumption: < 2.5 Watt
Connector (at cable): Lemo type FFA.00, positive at center pin.
4.15.2
External AC Main Supply Adapter
Part No.: ZG 0426
Supply Voltage: 100 – 120/200 – 240 VAC; 47 – 63 Hz
Connector: 2–pin IEC 320
4.15.3
External AC Main Charger (Optional Accessory)
Part No.: ZG 0444
Supply Voltage: 90 – 264 VAC; 47 – 63 Hz
Connector: 2–pin IEC 320
4.15.4
Battery for Type 2250
Part No.: QB 0061 Rechargeable Li-Ion battery
Voltage: 3.7 V
Capacity: 4800 mAh
4.15.5
Battery Lifetime
Typically: > 8 hours. However, if the instrument is used in low temperatures or there is extensive use
of the display backlight, this may reduce the time.
Battery Indicator: Remaining battery capacity may be read out in % or in time.
Battery Fuel Gauge: The battery is equipped with a built-in fuel gauge, which continuously measures
and stores the actual battery capacity.
Charge time: In instrument, 7 hours from empty. With external charger ZG 0444 (optional accessory),
5 hours.
Note: It is not recommended to charge the battery at temperatures below 0ºC or over 50ºC (32ºF to
122ºF). Doing this will reduce the battery lifetime.
4.16
Warm-up Time
Warm-up time: < 1 minute after reaching equilibrium with the ambient environment and switching on
power.
4.17
Real-time Clock
Nominal drift: < 12 seconds over a 24-hour period
BE171211.book Page 51 Thursday, May 27, 2004 1:01 PM
CHAPTER 4
Specifications
4.18
CE-mark and C-Tick mark Compliance
CE-mark indicates compliance with the EMC Directive and Low Voltage Directive.
C-Tick mark indicates compliance with the EMC requirements of Australia and New
Zealand
Safety
EN/IEC 61010–1: Safety requirements for electrical equipment for measurement, control
and labroratory use.
UL 3111–1: Standard for Safety - Electrical measuring and test equipment
EMC Emission
EN/IEC 61000–6–3: Generic emission standard for residential, commercial and light
industrial environments.
CISPR 22: Radio disturbance characteristics of information technology equipment. Class
B limits.
FCC Rules: Part 15: Complies with the limits for a Class B digital device.
IEC 60651, IEC 60804, IEC 61260 and IEC 61672–1: Instrumentation standards
EMC Immunity
EN/IEC 61000–6–2: Generic standard – Immunity for industrial environment.
EN/IEC 61326: Electrical equipment for measurement, control and laboratory use – EMC
requirements.
IEC 60651, IEC 60804, IEC 61260 and IEC 61672–1: Instrumentation standards
51
BE171211.book Page 52 Thursday, May 27, 2004 1:01 PM
52
Hand-held Analyzer Type 2250 – Instruction Manual
BE171211.book Page 53 Thursday, May 27, 2004 1:01 PM
53
Appendix A
Tables
A.1
Electrical Frequency Responses
Table A.1
Electrical frequency response with the Microphone Type parameter set to ‘Unknown’ (in the Transducers display) for the transducer used.
Nominal
Frequency
(Hz)
Exact
Frequency
(6 digits)
(Hz)
Electrical
Response
(2 decimals)
(dB)
Deviation
from Ideal
(2 decimals)
(dB)
Aweighting
Cweighting
Zweighting
Aweighting
Cweighting
Zweighting
63
63.0957
–26.2
–0.82
0.00
0.00
0.00
0.00
80
79.4328
–22.51
–0.50
0.00
0.00
0.00
0.00
100
100
–19.14
–0.30
0.00
0.00
0.00
0.00
125
125.893
–16.1
–0.17
0.00
0.00
0.00
0.00
160
158.489
–13.35
–0.08
0.00
0.00
0.00
0.00
200
199.526
–10.87
–0.03
0.00
0.00
0.00
0.00
250
251.189
–8.63
0.00
0.00
0.00
0.00
0.00
315
316.228
–6.61
–0.02
0.00
0.00
0.00
0.00
400
398.107
–4.81
–0.03
0.00
0.00
0.00
0.00
500
501.187
–3.23
–0.03
0.00
0.00
0.00
0.00
630
630.957
–1.9
–0.03
0.00
0.00
0.00
0.00
800
794.328
–0.82
–0.02
0.00
0.00
0.00
0.00
1000
1000
0
0
0
0
0
0
1060
1059.25
0.17
–0.01
0.00
0.00
0.00
0.00
1120
1122.02
0.32
–0.01
0.00
0.00
0.00
0.00
1180
1188.50
0.46
–0.02
0.00
0.00
0.00
0.00
1250
1258.93
0.59
–0.03
0.00
0.00
0.00
0.00
1320
1333.52
0.71
–0.04
0.00
0.00
0.00
0.00
1400
1412.54
0.81
–0.06
0.00
0.00
0.00
0.00
1500
1496.24
0.9
–0.07
0.00
0.00
0.00
0.00
BE171211.book Page 54 Thursday, May 27, 2004 1:01 PM
54
Hand-held Analyzer Type 2250 – Instruction Manual
Table A.1
(cont.) Electrical frequency response with the Microphone Type parameter set to ‘Unknown’ (in the
Transducers display) for the transducer used.
Nominal
Frequency
(Hz)
Exact
Frequency
(6 digits)
(Hz)
Electrical
Response
(2 decimals)
(dB)
Deviation
from Ideal
(2 decimals)
(dB)
Aweighting
Cweighting
Zweighting
Aweighting
Cweighting
Zweighting
1600
1584.89
0.98
–0.09
0.00
0.00
0.00
0.00
1700
1678.80
1.05
–0.10
0.00
0.00
0.00
0.00
1800
1778.28
1.11
–0.12
0.00
0.00
0.00
0.00
1900
1883.65
1.16
–0.14
0.00
0.00
0.00
0.00
2000
1995.26
1.20
–0.17
0.00
0.00
0.00
0.00
2120
2113.49
1.23
–0.20
0.00
0.00
0.00
0.00
2240
2238.72
1.25
–0.23
0.00
0.00
0.00
0.00
2360
2371.37
1.26
–0.26
0.00
0.00
0.00
0.00
2500
2511.89
1.27
–0.30
0.00
0.00
0.00
0.00
2650
2660.73
1.26
–0.34
0.00
0.00
0.00
0.00
2800
2818.38
1.25
–0.39
0.00
0.00
0.00
0.00
3000
2985.38
1.23
–0.45
0.00
0.00
0.00
0.00
3150
3162.28
1.20
–0.51
0.00
0.00
0.00
0.00
3350
3349.65
1.16
–0.57
0.00
0.00
0.00
0.00
3550
3548.13
1.10
–0.65
0.00
0.00
0.00
0.00
3750
3758.37
1.04
–0.73
0.00
0.00
0.00
0.00
4000
3981.07
0.97
–0.82
0.00
0.00
0.00
0.00
4250
4216.97
0.88
–0.92
0.00
0.00
0.00
0.00
4500
4466.84
0.79
–1.03
0.00
0.00
0.00
0.00
4750
4731.51
0.67
–1.16
0.00
0.00
0.00
0.00
5000
5011.87
0.55
–1.29
0.00
0.00
0.00
0.00
5300
5308.84
0.41
–1.44
0.00
0.00
0.00
0.00
5600
5623.41
0.25
–1.61
0.00
0.00
0.00
0.00
6000
5956.62
0.08
–1.79
0.00
0.00
0.00
0.00
6300
6309.57
–0.12
–1.99
0.00
0.00
0.00
0.00
6700
6683.44
–0.33
–2.21
0.00
0.01
0.01
0.00
7100
7079.46
–0.56
–2.45
0.00
0.01
0.01
0.00
7500
7498.94
–0.82
–2.71
0.00
0.01
0.01
0.00
8000
7943.28
–1.10
–3.00
0.00
0.01
0.01
0.00
8500
8413.95
–1.40
–3.30
0.00
0.01
0.01
0.00
9000
8912.51
–1.73
–3.64
0.00
0.01
0.01
0.00
BE171211.book Page 55 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
55
Table A.1
(cont.) Electrical frequency response with the Microphone Type parameter set to ‘Unknown’ (in the
Transducers display) for the transducer used.
Nominal
Frequency
(Hz)
Exact
Frequency
(6 digits)
(Hz)
Electrical
Response
(2 decimals)
(dB)
Deviation
from Ideal
(2 decimals)
(dB)
Aweighting
Cweighting
Zweighting
Aweighting
Cweighting
Zweighting
9500
9440.61
–2.09
–4.00
0.00
0.01
0.01
0.00
10000
10000
–2.47
–4.39
0.00
0.01
0.01
0.00
10600
10592.5
–2.89
–4.80
0.00
0.01
0.01
0.00
11200
11220.2
–3.33
–5.25
–0.01
0.00
0.00
–0.01
11800
11885.0
–3.81
–5.73
–0.01
0.00
0.00
–0.01
12500
12589.3
–4.32
–6.24
–0.01
–0.01
–0.01
–0.01
13200
13335.2
–4.86
–6.78
–0.01
–0.03
–0.02
–0.01
14000
14125.4
–5.43
–7.35
–0.01
–0.04
–0.04
–0.01
15000
14962.4
–6.03
–7.96
–0.01
–0.06
–0.06
–0.01
16000
15848.9
–6.66
–8.58
–0.01
–0.07
–0.07
–0.01
17000
16788.0
–7.31
–9.23
–0.02
–0.08
–0.08
–0.02
18000
17782.8
–7.96
–9.89
–0.02
–0.08
–0.07
–0.02
19000
18836.5
–8.61
–10.54
–0.02
–0.04
–0.04
–0.02
20000
19952.6
–9.23
–11.16
–0.02
0.06
0.06
–0.02
21200
21134.9
–9.76
–11.69
–0.03
0.26
0.26
–0.03
22400
22387.2
–10.16
–12.09
–0.13
0.52
0.53
–0.13
A.2
Free-field Frequency Responses
Frequency responses for plane progressive sinusoidal sound waves incident from the reference direction
with Z-frequency-weighting:
Table A.2
Free-field frequency response of Microphone Type 4189 only, with sound field at 0° angle of incidence
to the microphone. Sound Field Correction parameter set to ‘Free-field’ and the Windscreen Correction parameter set
to ‘None’.
Nominal
Frequency
Exact (6 digits) Micr. Actuator
Frequency
Response
dB
Micr. FF
Correction
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
63 Hz
80 Hz
63.0957 Hz
79.4328 Hz
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.05
0.05
100 Hz
125 Hz
160 Hz
100 Hz
125.893 Hz
158.489 Hz
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.05
0.05
0.05
200 Hz
250 Hz
315 Hz
199.526 Hz
251.189 Hz
316.228 Hz
0.01
0.00
–0.01
0.00
0.00
0.01
0.00
0.00
0.00
0.01
0.00
0.00
0.05
0.05
0.06
400 Hz
500 Hz
630 Hz
398.107 Hz
501.187 Hz
630.957 Hz
–0.02
–0.03
–0.04
0.01
0.02
0.04
0.00
0.00
0.00
–0.01
0.00
0.00
0.06
0.07
0.07
BE171211.book Page 56 Thursday, May 27, 2004 1:01 PM
56
Hand-held Analyzer Type 2250 – Instruction Manual
Nominal
Frequency
Hz
Exact (6 digits) Micr. Actuator
Frequency
Response
Hz
dB
Micr. FF
Correction
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
800 Hz
1000 Hz
1060 Hz
1120 Hz
794.328 Hz
1000 Hz
1059.25 Hz
1122.02 Hz
–0.06
–0.09
–0.10
–0.11
0.07
0.10
0.11
0.12
0.00
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.07
0.07
0.07
0.07
1180 Hz
1250 Hz
1320 Hz
1400 Hz
1188.50 Hz
1258.93 Hz
1333.52 Hz
1412.54 Hz
–0.12
–0.13
–0.15
–0.16
0.14
0.15
0.17
0.18
0.01
0.01
0.01
0.01
0.03
0.03
0.03
0.03
0.08
0.08
0.08
0.08
1500 Hz
1600 Hz
1700 Hz
1800 Hz
1496.24 Hz
1584.89 Hz
1678.80 Hz
1778.28 Hz
–0.18
–0.20
–0.22
–0.25
0.20
0.22
0.24
0.27
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
0.08
0.08
0.08
0.09
1900 Hz
2000 Hz
2120 Hz
2240 Hz
1883.65 Hz
1995.26 Hz
2113.49 Hz
2238.72 Hz
–0.28
–0.31
–0.34
–0.38
0.29
0.32
0.36
0.39
0.02
0.02
0.03
0.03
0.04
0.04
0.05
0.04
0.09
0.09
0.09
0.09
2360 Hz
2500 Hz
2650 Hz
2800 Hz
2371.37 Hz
2511.89 Hz
2660.73 Hz
2818.38 Hz
–0.42
–0.47
–0.53
–0.59
0.43
0.48
0.53
0.59
0.03
0.03
0.04
0.04
0.04
0.03
0.04
0.04
0.10
0.10
0.10
0.11
3000 Hz
3150 Hz
3350 Hz
3550 Hz
2985.38 Hz
3162.28 Hz
3349.65 Hz
3548.13 Hz
–0.65
–0.73
–0.81
–0.90
0.65
0.71
0.78
0.86
0.05
0.05
0.06
0.06
0.04
0.04
0.04
0.03
0.11
0.12
0.12
0.13
3750 Hz
4000 Hz
4250 Hz
4500 Hz
3758.37 Hz
3981.07 Hz
4216.97 Hz
4466.84 Hz
–0.99
–1.10
–1.22
–1.35
0.96
1.07
1.18
1.30
0.07
0.07
0.08
0.09
0.04
0.03
0.03
0.03
0.13
0.14
0.14
0.14
4750 Hz
5000 Hz
5300 Hz
5600 Hz
4731.51 Hz
5011.87 Hz
5308.84 Hz
5623.41 Hz
–1.50
–1.65
–1.83
–2.02
1.43
1.57
1.73
1.90
0.10
0.10
0.11
0.11
0.03
0.02
0.01
0.00
0.14
0.15
0.15
0.15
6000 Hz
6300 Hz
6700 Hz
7100 Hz
5956.62 Hz
6309.57 Hz
6683.44 Hz
7079.46 Hz
–2.22
–2.43
–2.67
–2.92
2.09
2.28
2.49
2.74
0.12
0.12
0.12
0.12
–0.01
–0.03
–0.06
–0.07
0.16
0.16
0.17
0.17
7500 Hz
8000 Hz
8500 Hz
9000 Hz
7498.94 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
–3.20
–3.50
–3.84
–4.22
3.04
3.38
3.75
4.14
0.12
0.11
0.09
0.06
–0.04
–0.01
–0.01
–0.02
0.17
0.18
0.19
0.20
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
–4.65
–5.10
–5.57
–6.01
4.60
5.12
5.68
6.27
0.02
–0.03
–0.10
–0.19
–0.03
–0.01
0.01
0.07
0.22
0.23
0.24
0.26
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
–6.39
–6.69
–6.93
–7.15
6.81
7.19
7.54
7.89
–0.31
–0.44
–0.59
–0.75
0.10
0.06
0.02
–0.01
0.28
0.29
0.31
0.33
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
–7.40
–7.68
–8.02
–8.50
8.24
8.59
8.91
9.27
–0.87
–0.94
–0.90
–0.71
–0.03
–0.03
0.00
0.05
0.35
0.38
0.40
0.43
19000 Hz
20000 Hz
21200 Hz
22400 Hz
18836.5 Hz
19952.6 Hz
21134.9 Hz
22387.2 Hz
–9.21
–10.09
–11.10
–12.31
9.62
10.05
10.46
10.85
–0.40
–0.03
0.34
0.59
0.02
–0.07
–0.31
–0.87
0.45
0.48
0.49
0.49
BE171211.book Page 57 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
57
Table A.3
Free-field frequency response of Hand-held Analyzer Type 2250 (including Microphone Type 4189) and
sound field at 0° angle of incidence to the microphone. Sound Field Correction parameter set to ‘Free-field’ and the
Windscreen Correction parameter set to ‘None’.
Nominal
Frequency
Exact
Frequency
Acoustical
Response
From Table A.2
dB
Expanded
Uncertainty
Body
Influence
Expanded
Uncertainty
Acoustical
Response
Expanded
Uncertainty
dB
dB
dB
dB
dB
63 Hz
80 Hz
63.0957 Hz
79.4328 Hz
0.00
0.00
0.05
0.05
0.00
0.00
0.10
0.10
0.00
0.00
0.11
0.11
100 Hz
125 Hz
160 Hz
100 Hz
125.893 Hz
158.489 Hz
0.00
0.00
0.00
0.05
0.05
0.05
0.00
0.00
0.01
0.10
0.10
0.10
0.00
0.00
0.01
0.11
0.11
0.11
200 Hz
250 Hz
315 Hz
199.526 Hz
251.189 Hz
316.228 Hz
0.01
0.00
0.00
0.05
0.05
0.06
0.03
0.06
0.13
0.10
0.10
0.10
0.04
0.08
0.13
0.11
0.11
0.12
400 Hz
500 Hz
630 Hz
398.107 Hz
501.187 Hz
630.957 Hz
–0.01
0.00
0.00
0.06
0.07
0.07
0.21
0.22
0.07
0.10
0.10
0.10
0.22
0.20
0.01
0.12
0.12
0.12
800 Hz
1000 Hz
1060 Hz
1120 Hz
794.328 Hz
1000 Hz
1059.25 Hz
1122.02 Hz
0.01
0.02
0.02
0.02
0.07
0.07
0.07
0.07
–0.11
–0.07
–0.10
–0.18
0.10
0.10
0.10
0.10
–0.10
–0.05
–0.09
–0.16
0.12
0.12
0.12
0.12
1180 Hz
1250 Hz
1320 Hz
1400 Hz
1188.50 Hz
1258.93 Hz
1333.52 Hz
1412.54 Hz
0.03
0.03
0.03
0.03
0.08
0.08
0.08
0.08
–0.26
–0.30
–0.24
–0.08
0.10
0.10
0.10
0.10
–0.24
–0.28
–0.20
–0.03
0.13
0.13
0.13
0.13
1500 Hz
1600 Hz
1700 Hz
1800 Hz
1496.24 Hz
1584.89 Hz
1678.80 Hz
1778.28 Hz
0.03
0.03
0.04
0.04
0.08
0.08
0.08
0.09
0.09
0.17
0.07
–0.12
0.10
0.10
0.10
0.10
0.13
0.19
0.09
–0.09
0.13
0.13
0.13
0.13
1900 Hz
2000 Hz
2120 Hz
2240 Hz
1883.65 Hz
1995.26 Hz
2113.49 Hz
2238.72 Hz
0.04
0.04
0.04
0.04
0.09
0.09
0.09
0.09
–0.21
–0.09
0.11
0.09
0.10
0.10
0.10
0.15
–0.18
–0.05
0.17
0.13
0.13
0.13
0.13
0.13
2360 Hz
2500 Hz
2650 Hz
2800 Hz
2371.37 Hz
2511.89 Hz
2660.73 Hz
2818.38 Hz
0.04
0.03
0.04
0.04
0.10
0.10
0.10
0.11
–0.30
–0.17
0.18
0.09
0.15
0.15
0.15
0.15
–0.27
–0.10
0.23
0.11
0.18
0.18
0.18
0.19
3000 Hz
3150 Hz
3350 Hz
3550 Hz
2985.38 Hz
3162.28 Hz
3349.65 Hz
3548.13 Hz
0.04
0.04
0.04
0.03
0.11
0.12
0.12
0.13
–0.12
0.16
0.03
–0.13
0.15
0.15
0.15
0.15
–0.08
0.20
0.06
–0.09
0.19
0.19
0.19
0.19
3750 Hz
4000 Hz
4250 Hz
4500 Hz
3758.37 Hz
3981.07 Hz
4216.97 Hz
4466.84 Hz
0.04
0.03
0.03
0.03
0.13
0.14
0.14
0.14
0.20
–0.09
–0.01
0.10
0.15
0.15
0.15
0.15
0.24
–0.07
0.05
0.13
0.20
0.20
0.21
0.21
4750 Hz
5000 Hz
5300 Hz
5600 Hz
4731.51 Hz
5011.87 Hz
5308.84 Hz
5623.41 Hz
0.03
0.02
0.01
0.00
0.14
0.15
0.15
0.15
–0.16
–0.24
–0.10
–0.05
0.15
0.15
0.15
0.15
–0.13
–0.23
–0.07
–0.05
0.21
0.21
0.21
0.21
6000 Hz
6300 Hz
6700 Hz
7100 Hz
5956.62 Hz
6309.57 Hz
6683.44 Hz
7079.46 Hz
–0.01
–0.03
–0.06
–0.07
0.16
0.16
0.17
0.17
0.03
0.06
0.05
–0.03
0.15
0.15
0.15
0.15
0.02
0.03
0.00
–0.10
0.21
0.22
0.22
0.23
7500 Hz
8000 Hz
8500 Hz
9000 Hz
7498.94 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
–0.04
–0.01
–0.01
–0.02
0.17
0.18
0.19
0.20
–0.08
–0.08
–0.19
–0.01
0.20
0.20
0.20
0.20
–0.13
–0.10
–0.19
–0.02
0.23
0.26
0.27
0.28
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
–0.03
–0.01
0.01
0.07
0.22
0.23
0.24
0.26
0.11
0.15
–0.14
–0.13
0.20
0.20
0.20
0.20
0.08
0.14
–0.12
–0.05
0.28
0.30
0.30
0.33
BE171211.book Page 58 Thursday, May 27, 2004 1:01 PM
58
Hand-held Analyzer Type 2250 – Instruction Manual
Nominal
Frequency
Exact
Frequency
Acoustical
Response
From Table A.2
dB
Expanded
Uncertainty
Body
Influence
Expanded
Uncertainty
Acoustical
Response
Expanded
Uncertainty
dB
dB
dB
dB
dB
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
0.10
0.06
0.02
–0.01
0.28
0.29
0.31
0.33
0.08
0.15
0.00
–0.07
0.20
0.20
0.20
0.20
0.18
0.21
0.02
–0.08
0.34
0.35
0.37
0.39
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
–0.03
–0.03
0.00
0.05
0.35
0.38
0.40
0.43
0.05
0.11
–0.01
–0.06
0.20
0.20
0.20
0.20
0.02
0.08
–0.02
–0.01
0.39
0.40
0.43
0.45
19000 Hz
20000 Hz
21200 Hz
22400 Hz
18836.5 Hz
19952.6 Hz
21134.9 Hz
22387.2 Hz
0.02
–0.07
–0.31
–0.80
0.45
0.48
0.49
0.49
0.12
0.00
0.04
0.17
0.20
0.20
0.20
0.20
0.14
–0.07
–0.27
–0.63
0.47
0.49
0.52
0.53
Table A.4
Free-field frequency response of Microphone Type 4189 only, with Windscreen UA 1650 fitted and
sound field at 0° angle of incidence to the microphone. Sound Field Correction parameter set to ‘Free-field’ and the
Windscreen Correction parameter set to ‘Auto Detect’ or ‘UA 1650’.
Nominal
Frequency
Exact
Frequency
Microphone
Free-field
dB
Expanded
Uncertainty
dB
Influence of
Windscreen
dB
Expanded
Uncertainty
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
63 Hz
80 Hz
63.0957 Hz
79.4328 Hz
0.00
0.00
0.05
0.05
0.01
0.02
0.15
0.15
0.00
0.00
0.01
0.02
0.16
0.16
100 Hz
125 Hz
160 Hz
100 Hz
125.893 Hz
158.489 Hz
0.00
0.00
0.00
0.05
0.05
0.05
0.02
0.02
0.03
0.15
0.15
0.15
0.00
0.00
0.00
0.02
0.02
0.03
0.16
0.16
0.16
200 Hz
250 Hz
315 Hz
199.526 Hz
251.189 Hz
316.228 Hz
0.01
0.00
0.00
0.05
0.05
0.06
0.04
0.05
0.06
0.15
0.15
0.15
–0.01
–0.01
–0.02
0.04
0.04
0.03
0.16
0.16
0.16
400 Hz
500 Hz
630 Hz
398.107 Hz
501.187 Hz
630.957 Hz
–0.01
0.00
0.00
0.06
0.07
0.07
0.08
0.09
0.12
0.15
0.15
0.15
–0.04
–0.06
–0.09
0.03
0.03
0.03
0.16
0.17
0.17
800 Hz
1000 Hz
1060 Hz
1120 Hz
794.328 Hz
1000 Hz
1059.25 Hz
1122.02 Hz
0.01
0.01
0.01
0.01
0.07
0.07
0.07
0.07
0.16
0.20
0.22
0.24
0.15
0.15
0.15
0.15
–0.15
–0.23
–0.25
–0.28
0.02
–0.02
–0.02
–0.03
0.17
0.17
0.17
0.17
1180 Hz
1250 Hz
1320 Hz
1400 Hz
1188.50 Hz
1258.93 Hz
1333.52 Hz
1412.54 Hz
0.02
0.02
0.02
0.02
0.08
0.08
0.08
0.08
0.27
0.31
0.36
0.39
0.15
0.15
0.15
0.15
–0.32
–0.35
–0.39
–0.43
–0.04
–0.02
–0.01
–0.02
0.17
0.17
0.17
0.17
1500 Hz
1600 Hz
1700 Hz
1800 Hz
1496.24 Hz
1584.89 Hz
1678.80 Hz
1778.28 Hz
0.02
0.02
0.02
0.02
0.08
0.08
0.08
0.09
0.41
0.42
0.46
0.49
0.15
0.15
0.15
0.15
–0.47
–0.52
–0.56
–0.60
–0.04
–0.08
–0.08
–0.09
0.17
0.17
0.17
0.17
1900 Hz
2000 Hz
2120 Hz
2240 Hz
1883.65 Hz
1995.26 Hz
2113.49 Hz
2238.72 Hz
0.02
0.02
0.02
0.01
0.09
0.09
0.09
0.09
0.55
0.60
0.63
0.64
0.15
0.15
0.15
0.15
–0.65
–0.68
–0.71
–0.73
–0.08
–0.06
–0.07
–0.08
0.17
0.17
0.17
0.17
2360 Hz
2500 Hz
2650 Hz
2800 Hz
2371.37 Hz
2511.89 Hz
2660.73 Hz
2818.38 Hz
0.01
0.00
0.00
0.00
0.10
0.10
0.10
0.11
0.66
0.70
0.67
0.63
0.15
0.15
0.15
0.00
–0.73
–0.72
–0.69
–0.64
–0.06
–0.02
–0.02
–0.01
0.18
0.18
0.18
0.11
3000 Hz
3150 Hz
3350 Hz
3550 Hz
2985.38 Hz
3162.28 Hz
3349.65 Hz
3548.13 Hz
–0.01
–0.01
–0.02
–0.03
0.11
0.12
0.12
0.13
0.57
0.50
0.38
0.28
0.15
0.15
0.15
0.15
–0.57
–0.49
–0.40
–0.31
0.00
0.00
–0.04
–0.06
0.19
0.19
0.19
0.20
3750 Hz
4000 Hz
4250 Hz
4500 Hz
3758.37 Hz
3981.07 Hz
4216.97 Hz
4466.84 Hz
–0.03
–0.04
–0.05
–0.06
0.13
0.14
0.14
0.14
0.19
0.06
0.09
0.07
0.15
0.15
0.15
0.15
–0.21
–0.11
–0.02
0.07
–0.05
–0.09
0.03
0.08
0.20
0.21
0.21
0.21
BE171211.book Page 59 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
Nominal
Frequency
Exact
Frequency
4750 Hz
5000 Hz
5300 Hz
5600 Hz
4731.51 Hz
5011.87 Hz
5308.84 Hz
5623.41 Hz
6000 Hz
6300 Hz
6700 Hz
7100 Hz
Microphone
Free-field
dB
Expanded
Uncertainty
dB
Influence of
Windscreen
dB
Expanded
Uncertainty
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
–0.07
–0.08
–0.10
–0.11
0.14
0.15
0.15
0.15
0.15
0.27
0.41
0.39
0.15
0.15
0.25
0.25
0.14
0.21
0.27
0.33
0.22
0.40
0.58
0.60
0.21
0.21
0.29
0.29
5956.62 Hz
6309.57 Hz
6683.44 Hz
7079.46 Hz
–0.13
–0.15
–0.18
–0.19
0.16
0.16
0.17
0.17
0.31
0.14
–0.09
–0.34
0.25
0.25
0.25
0.25
0.37
0.41
0.44
0.47
0.55
0.40
0.18
–0.06
0.30
0.30
0.30
0.30
7500 Hz
8000 Hz
8500 Hz
9000 Hz
7498.94 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
–0.16
–0.12
–0.10
–0.08
0.17
0.18
0.19
0.20
–0.42
–0.21
0.14
0.17
0.25
0.25
0.25
0.25
0.48
0.50
0.51
0.51
–0.11
0.17
0.55
0.60
0.30
0.31
0.31
0.32
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.18 Hz
–0.05
0.02
0.11
0.26
0.22
0.23
0.24
0.26
–0.17
–0.56
–0.65
–0.58
0.25
0.25
0.25
0.25
0.51
0.50
0.50
0.49
0.30
–0.05
–0.04
0.18
0.33
0.34
0.35
0.36
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.02 Hz
12589.25 Hz
13335.21 Hz
14125.38 Hz
0.41
0.50
0.61
0.74
0.28
0.29
0.31
0.33
–0.46
–0.48
–0.70
–0.83
0.25
0.25
0.25
0.25
0.47
0.46
0.44
0.42
0.43
0.48
0.34
0.33
0.38
0.38
0.40
0.41
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.36 Hz
15848.93 Hz
16788.04 Hz
17782.79 Hz
0.84
0.91
0.90
0.76
0.35
0.38
0.40
0.43
–0.77
–0.76
–0.75
–0.76
0.25
0.25
0.25
0.25
0.40
0.38
0.35
0.33
0.47
0.53
0.50
0.33
0.43
0.45
0.47
0.50
19000 Hz
20000 Hz
21200 Hz
22400 Hz
18836.49 Hz
19952.62 Hz
21134.89 Hz
22387.21 Hz
0.42
–0.04
–0.65
–1.46
0.45
0.48
0.49
0.49
–0.87
–0.70
–0.60
–0.79
0.25
0.25
0.25
0.25
0.30
0.27
0.24
0.19
–0.15
–0.47
–1.01
–2.06
0.51
0.54
0.55
0.55
59
Table A.5
Free-field frequency response of Hand-held Analyzer Type 2250 (including Microphone Type 4189),
Windscreen UA 1650 fitted and sound field at 0° angle of incidence to the microphone. Sound Field Correction
parameter set to ‘Free-field’ and the Windscreen Correction parameter set to ‘Auto Detect’ or ‘UA 1650’.
Nominal
Frequency
Exact
Frequency
Acoustical
Response
From Table A.4
dB
Expanded
Uncertainty
2250 Body
Influence
Expanded
Uncertainty
Acoustical
Response
Expanded
Uncertainty
dB
dB
dB
dB
dB
63 Hz
80 Hz
63.0957 Hz
79.4328 Hz
0.01
0.02
0.16
0.16
0.00
0.00
0.10
0.10
0.01
0.02
0.19
0.19
100 Hz
125 Hz
160 Hz
100 Hz
125.893 Hz
158.489 Hz
0.02
0.02
0.03
0.16
0.16
0.16
0.00
0.00
0.01
0.10
0.10
0.10
0.01
0.03
0.03
0.19
0.19
0.19
200 Hz
250 Hz
315 Hz
199.526 Hz
251.189 Hz
316.228 Hz
0.04
0.04
0.03
0.16
0.16
0.16
0.03
0.06
0.13
0.10
0.10
0.10
0.06
0.10
0.16
0.19
0.19
0.19
400 Hz
500 Hz
630 Hz
398.107 Hz
501.187 Hz
630.957 Hz
0.03
0.03
0.03
0.16
0.17
0.17
0.21
0.22
0.07
0.10
0.10
0.10
0.24
0.25
0.10
0.19
0.19
0.19
800 Hz
1000 Hz
1060 Hz
1120 Hz
794.328 Hz
1000 Hz
1059.25 Hz
1122.02 Hz
0.02
–0.02
–0.02
–0.03
0.17
0.17
0.17
0.17
–0.11
–0.07
–0.10
–0.18
0.10
0.10
0.10
0.10
–0.09
–0.09
–0.12
–0.20
0.19
0.19
0.19
0.19
1180 Hz
1250 Hz
1320 Hz
1400 Hz
1188.50 Hz
1258.93 Hz
1333.52 Hz
1412.54 Hz
–0.04
–0.02
–0.01
–0.02
0.17
0.17
0.17
0.17
–0.26
–0.30
–0.24
–0.08
0.10
0.10
0.10
0.10
–0.30
–0.32
–0.25
–0.10
0.20
0.20
0.20
0.20
1500 Hz
1600 Hz
1700 Hz
1800 Hz
1496.24 Hz
1584.89 Hz
1678.80 Hz
1778.28 Hz
–0.04
–0.08
–0.08
–0.09
0.17
0.17
0.17
0.17
0.09
0.17
0.07
–0.12
0.10
0.10
0.10
0.10
0.05
0.09
–0.01
–0.21
0.20
0.20
0.20
0.20
BE171211.book Page 60 Thursday, May 27, 2004 1:01 PM
60
Hand-held Analyzer Type 2250 – Instruction Manual
Nominal
Frequency
Exact
Frequency
Acoustical
Response
From Table A.4
dB
Expanded
Uncertainty
2250 Body
Influence
Expanded
Uncertainty
Acoustical
Response
Expanded
Uncertainty
dB
dB
dB
dB
dB
1900 Hz
2000 Hz
2120 Hz
2240 Hz
1883.65 Hz
1995.26 Hz
2113.49 Hz
2238.72 Hz
–0.08
–0.06
–0.07
–0.08
0.17
0.17
0.17
0.17
–0.21
–0.09
0.11
0.09
0.10
0.10
0.10
0.15
–0.29
–0.15
0.05
0.01
0.20
0.20
0.20
0.23
2360 Hz
2500 Hz
2650 Hz
2800 Hz
2371.37 Hz
2511.89 Hz
2660.73 Hz
2818.38 Hz
–0.06
–0.02
–0.02
–0.01
0.18
0.18
0.18
0.11
–0.30
–0.17
0.18
0.09
0.15
0.15
0.15
0.15
–0.36
–0.19
0.17
0.08
0.23
0.23
0.23
0.19
3000 Hz
3150 Hz
3350 Hz
3550 Hz
2985.38 Hz
3162.28 Hz
3349.65 Hz
3548.13 Hz
0.00
0.00
–0.04
–0.06
0.19
0.19
0.19
0.20
–0.12
0.16
0.03
–0.13
0.15
0.15
0.15
0.15
–0.13
0.16
–0.01
–0.19
0.24
0.24
0.24
0.25
3750 Hz
4000 Hz
4250 Hz
4500 Hz
3758.37 Hz
3981.07 Hz
4216.97 Hz
4466.84 Hz
–0.05
–0.09
0.03
0.08
0.20
0.21
0.21
0.21
0.20
–0.09
–0.01
0.10
0.15
0.15
0.15
0.15
0.14
–0.18
0.02
0.18
0.25
0.25
0.25
0.25
4750 Hz
5000 Hz
5300 Hz
5600 Hz
4731.51 Hz
5011.87 Hz
5308.84 Hz
5623.41 Hz
0.22
0.40
0.58
0.60
0.21
0.21
0.29
0.29
–0.16
–0.24
–0.10
–0.05
0.15
0.15
0.15
0.15
0.06
0.16
0.49
0.55
0.25
0.26
0.33
0.33
6000 Hz
6300 Hz
6700 Hz
7100 Hz
5956.62 Hz
6309.57 Hz
6683.44 Hz
7079.46 Hz
0.55
0.40
0.18
–0.06
0.30
0.30
0.30
0.30
0.03
0.06
0.05
–0.03
0.15
0.15
0.15
0.15
0.58
0.46
0.23
–0.09
0.33
0.33
0.34
0.34
7500 Hz
8000 Hz
8500 Hz
9000 Hz
7498.94 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
–0.11
0.17
0.55
0.60
0.30
0.31
0.31
0.32
–0.08
–0.08
–0.19
–0.01
0.20
0.20
0.20
0.20
–0.19
0.09
0.36
0.59
0.36
0.37
0.37
0.38
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
0.30
–0.05
–0.04
0.18
0.33
0.34
0.35
0.36
0.11
0.15
–0.14
–0.13
0.20
0.20
0.20
0.20
0.40
0.10
–0.18
0.05
0.39
0.39
0.40
0.41
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
0.43
0.48
0.34
0.33
0.38
0.38
0.40
0.41
0.08
0.15
0.00
–0.07
0.20
0.20
0.20
0.20
0.51
0.63
0.34
0.26
0.43
0.43
0.45
0.46
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
0.47
0.53
0.50
0.33
0.43
0.45
0.47
0.50
0.05
0.11
–0.01
–0.06
0.20
0.20
0.20
0.20
0.52
0.64
0.49
0.27
0.47
0.50
0.51
0.54
19000 Hz
20000 Hz
21200 Hz
22400 Hz
18836.5 Hz
19952.6 Hz
21134.9 Hz
22387.2 Hz
–0.15
–0.47
–1.01
–2.06
0.51
0.54
0.55
0.55
0.12
0.00
0.04
0.17
0.20
0.20
0.20
0.20
–0.03
–0.48
–0.97
–1.89
0.55
0.58
0.59
0.59
Table A.6
Free-field frequency response of Microphone Type 4189, with sound field at 0° angle of incidence to
the microphone and Outdoor Microphone Kit UA 1404 fitted. Sound Field Correction parameter set to ‘Free-field’ and
the Windscreen Correction parameter set to ‘UA 1404’.
Nominal
Frequency
Exact
Frequency
Microphone
Free-field
dB
Expanded
Uncertainty
dB
Influence of
Windscreen
dB
Expanded
Uncertainty
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
63 Hz
80 Hz
63.0957 Hz
79.4328 Hz
0.00
0.00
0.05
0.05
0.00
0.00
0.15
0.15
0.00
0.00
0.00
0.00
0.16
0.16
100 Hz
125 Hz
160 Hz
100 Hz
125.893 Hz
158.489 Hz
0.00
0.00
0.00
0.05
0.05
0.05
0.00
0.00
0.00
0.15
0.15
0.15
0.00
0.00
0.00
0.00
0.00
0.00
0.16
0.16
0.16
200 Hz
250 Hz
315 Hz
199.526 Hz
251.189 Hz
316.228 Hz
0.01
0.00
0.00
0.05
0.05
0.06
0.00
0.02
0.04
0.15
0.15
0.15
0.00
0.00
0.00
0.01
0.02
0.04
0.16
0.16
0.16
BE171211.book Page 61 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
Nominal
Frequency
Exact
Frequency
Microphone
Free-field
dB
Expanded
Uncertainty
dB
Influence of
Windscreen
dB
Expanded
Uncertainty
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
400 Hz
500 Hz
630 Hz
398.107 Hz
501.187 Hz
630.957 Hz
–0.01
0.00
0.00
0.06
0.07
0.07
0.07
0.10
0.14
0.15
0.15
0.15
0.00
0.01
0.01
0.07
0.11
0.15
0.16
0.17
0.17
800 Hz
1000 Hz
1060 Hz
1120 Hz
794.328 Hz
1000 Hz
1059.25 Hz
1122.02 Hz
0.01
0.01
0.01
0.01
0.07
0.07
0.07
0.07
0.18
0.19
0.15
0.11
0.15
0.15
0.15
0.15
0.01
0.02
0.02
0.02
0.20
0.22
0.19
0.15
0.17
0.17
0.17
0.17
1180 Hz
1250 Hz
1320 Hz
1400 Hz
1188.50 Hz
1258.93 Hz
1333.52 Hz
1412.54 Hz
0.02
0.02
0.02
0.02
0.08
0.08
0.08
0.08
0.08
0.05
0.03
0.02
0.15
0.15
0.15
0.15
0.02
0.03
0.03
0.03
0.11
0.09
0.08
0.07
0.17
0.17
0.17
0.17
1500 Hz
1600 Hz
1700 Hz
1800 Hz
1496.24 Hz
1584.89 Hz
1678.80 Hz
1778.28 Hz
0.02
0.02
0.02
0.02
0.08
0.08
0.08
0.09
0.03
0.05
0.07
0.11
0.15
0.15
0.15
0.15
0.04
0.04
0.05
0.05
0.09
0.10
0.14
0.18
0.17
0.17
0.17
0.17
1900 Hz
2000 Hz
2120 Hz
2240 Hz
1883.65 Hz
1995.26 Hz
2113.49 Hz
2238.72 Hz
0.02
0.02
0.02
0.01
0.09
0.09
0.09
0.09
0.16
0.20
0.23
0.23
0.15
0.15
0.15
0.15
0.06
0.06
0.07
0.08
0.23
0.28
0.32
0.32
0.17
0.17
0.17
0.17
2360 Hz
2500 Hz
2650 Hz
2800 Hz
2371.37 Hz
2511.89 Hz
2660.73 Hz
2818.38 Hz
0.01
0.00
0.00
0.00
0.10
0.10
0.10
0.11
0.22
0.19
0.10
–0.02
0.15
0.15
0.15
0.15
0.09
0.10
0.11
0.12
0.32
0.29
0.21
0.10
0.18
0.18
0.18
0.19
3000 Hz
3150 Hz
3350 Hz
3550 Hz
2985.38 Hz
3162.28 Hz
3349.65 Hz
3548.13 Hz
–0.01
–0.01
–0.02
–0.03
0.11
0.12
0.12
0.13
–0.07
–0.08
–0.13
–0.04
0.15
0.15
0.15
0.15
0.13
0.14
0.16
0.17
0.06
0.04
0.01
0.09
0.19
0.19
0.19
0.20
3750 Hz
4000 Hz
4250 Hz
4500 Hz
3758.37 Hz
3981.07 Hz
4216.97 Hz
4466.84 Hz
–0.03
–0.04
–0.05
–0.06
0.13
0.14
0.14
0.14
0.05
0.01
0.04
–0.02
0.15
0.15
0.15
0.15
0.19
0.20
0.22
0.23
0.21
0.18
0.21
0.15
0.20
0.21
0.21
0.21
4750 Hz
5000 Hz
5300 Hz
5600 Hz
4731.51 Hz
5011.87 Hz
5308.84 Hz
5623.41 Hz
–0.07
–0.08
–0.10
–0.11
0.14
0.15
0.15
0.15
–0.05
–0.17
–0.19
–0.35
0.15
0.15
0.15
0.15
0.25
0.26
0.27
0.28
0.13
0.01
–0.02
–0.18
0.21
0.21
0.21
0.21
6000 Hz
6300 Hz
6700 Hz
7100 Hz
5956.62 Hz
6309.57 Hz
6683.44 Hz
7079.46 Hz
–0.13
–0.15
–0.18
–0.19
0.16
0.16
0.17
0.17
–0.37
–0.43
–0.35
–0.29
0.15
0.15
0.15
0.15
0.28
0.28
0.27
0.25
–0.22
–0.30
–0.25
–0.23
0.22
0.22
0.23
0.23
7500 Hz
8000 Hz
8500 Hz
9000 Hz
7498.94 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
–0.16
–0.12
–0.10
–0.08
0.17
0.18
0.19
0.20
–0.14
–0.05
–0.01
0.06
0.15
0.15
0.15
0.15
0.21
0.16
0.09
0.01
–0.09
–0.02
–0.01
–0.01
0.23
0.23
0.24
0.25
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
–0.05
0.02
0.11
0.26
0.22
0.23
0.24
0.26
0.15
0.16
0.14
0.06
0.15
0.15
0.15
0.15
–0.09
–0.18
–0.26
–0.29
0.01
0.00
0.00
0.04
0.27
0.27
0.28
0.30
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
0.41
0.50
0.61
0.74
0.28
0.29
0.31
0.33
–0.14
–0.50
–1.08
–1.78
0.15
0.15
0.15
0.15
–0.22
0.00
0.40
0.97
0.05
–0.01
–0.07
–0.07
0.32
0.33
0.34
0.36
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
0.84
0.91
0.90
0.76
0.35
0.38
0.40
0.43
–2.53
–3.36
–4.08
–4.57
0.15
0.15
0.15
0.15
1.68
2.47
3.25
3.99
–0.01
0.02
0.07
0.18
0.38
0.41
0.43
0.46
19000 Hz
20000 Hz
21200 Hz
22400 Hz
18836.5 Hz
19952.6 Hz
21134.9 Hz
22387.2 Hz
0.42
–0.04
–0.65
–1.46
0.45
0.48
0.49
0.49
–5.05
–5.95
–6.46
–8.06
0.15
0.15
0.15
0.15
4.64
5.19
5.59
5.84
0.00
–0.81
–1.52
–3.68
0.47
0.50
0.51
0.51
61
BE171211.book Page 62 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
62
A.3
Diffuse-field Frequency Responses
Diffuse-field frequency responses with Z-frequency-weighting:
Table A.7
Diffuse-field frequency response for Hand-held Analyzer Type 2250 (including Microphone Type 4189),
or Microphone Type 4189 only, with Sound Field Correction parameter set to ‘Diffuse-field’ and the Windscreen
Correction parameter set to ‘None’.
Nominal
Frequency
Exact
Frequency
Actuator
Response
dB
Micr. FF
Correction
Micr. DF
Correction
Electrical
Response
Acoustical
Response
Expanded
Uncertainty
dB
Reference
Direction
Response
dB
dB
dB
dB
dB
63 Hz
80 Hz
63.0957 Hz
79.4328 Hz
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.05
0.05
100 Hz
125 Hz
160 Hz
100 Hz
125.893 Hz
158.489 Hz
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.05
0.05
0.05
200 Hz
250 Hz
315 Hz
199.526 Hz
251.189 Hz
316.228 Hz
0.01
0.00
–0.01
0.00
0.00
–0.01
0.00
0.00
0.01
0.00
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.00
0.05
0.05
0.06
400 Hz
500 Hz
630 Hz
398.107 Hz
501.187 Hz
630.957 Hz
–0.02
–0.03
–0.04
–0.01
–0.01
–0.02
0.01
0.02
0.04
0.01
0.02
0.03
0.00
0.02
0.03
–0.02
–0.02
–0.03
0.06
0.07
0.07
800 Hz
1000 Hz
1060 Hz
1120 Hz
794.328 Hz
1000 Hz
1059.25 Hz
1122.02 Hz
–0.06
–0.09
–0.10
–0.11
–0.02
–0.02
–0.02
–0.02
0.07
0.10
0.11
0.12
0.05
0.08
0.09
0.10
0.06
0.09
0.10
0.11
–0.03
–0.03
–0.03
–0.03
0.07
0.07
0.07
0.07
1180 Hz
1250 Hz
1320 Hz
1400 Hz
1188.50 Hz
1258.93 Hz
1333.52 Hz
1412.54 Hz
–0.12
–0.13
–0.15
–0.16
–0.03
–0.03
–0.04
–0.05
0.14
0.15
0.17
0.18
0.11
0.12
0.14
0.15
0.13
0.14
0.16
0.17
–0.04
–0.05
–0.05
–0.06
0.08
0.08
0.08
0.08
1500 Hz
1600 Hz
1700 Hz
1800 Hz
1496.24 Hz
1584.89 Hz
1678.80 Hz
1778.28 Hz
–0.18
–0.20
–0.22
–0.25
–0.05
–0.05
–0.05
–0.04
0.20
0.22
0.24
0.27
0.17
0.19
0.21
0.24
0.19
0.21
0.23
0.26
–0.06
–0.07
–0.07
–0.05
0.08
0.08
0.08
0.09
1900 Hz
2000 Hz
2120 Hz
2240 Hz
1883.65 Hz
1995.26 Hz
2113.49 Hz
2238.72 Hz
–0.28
–0.31
–0.34
–0.38
–0.03
0.00
0.02
0.04
0.29
0.32
0.36
0.39
0.27
0.30
0.33
0.37
0.29
0.32
0.35
0.38
–0.03
–0.01
0.01
0.02
0.09
0.09
0.09
0.09
2360 Hz
2500 Hz
2650 Hz
2800 Hz
2371.37 Hz
2511.89 Hz
2660.73 Hz
2818.38 Hz
–0.42
–0.47
–0.53
–0.59
0.04
0.04
0.03
0.03
0.43
0.48
0.53
0.59
0.41
0.46
0.51
0.56
0.42
0.46
0.51
0.56
0.03
0.02
0.01
0.00
0.10
0.10
0.10
0.11
3000 Hz
3150 Hz
3350 Hz
3550 Hz
2985.38 Hz
3162.28 Hz
3349.65 Hz
3548.13 Hz
–0.65
–0.73
–0.81
–0.90
0.03
0.04
0.05
0.07
0.65
0.71
0.78
0.86
0.63
0.69
0.77
0.85
0.62
0.68
0.75
0.82
0.01
0.00
0.01
0.02
0.11
0.12
0.12
0.13
3750 Hz
4000 Hz
4250 Hz
4500 Hz
3758.37 Hz
3981.07 Hz
4216.97 Hz
4466.84 Hz
–0.99
–1.10
–1.22
–1.35
0.09
0.09
0.08
0.07
0.96
1.07
1.18
1.30
0.94
1.04
1.14
1.25
0.91
1.00
1.09
1.19
0.03
0.03
–0.01
–0.04
0.13
0.14
0.14
0.14
4750 Hz
5000 Hz
5300 Hz
5600 Hz
4731.51 Hz
5011.87 Hz
5308.84 Hz
5623.41 Hz
–1.50
–1.65
–1.83
–2.02
0.09
0.14
0.19
0.24
1.43
1.57
1.73
1.90
1.37
1.50
1.64
1.79
1.30
1.42
1.54
1.68
–0.04
–0.01
0.01
0.02
0.14
0.15
0.15
0.15
6000 Hz
6300 Hz
6700 Hz
7100 Hz
5956.62 Hz
6309.57 Hz
6683.44 Hz
7079.46 Hz
–2.22
–2.43
–2.67
–2.92
0.28
0.32
0.39
0.47
2.09
2.28
2.49
2.74
1.94
2.10
2.27
2.44
1.81
1.95
2.09
2.25
0.00
–0.02
–0.01
–0.01
0.16
0.16
0.17
0.17
7500 Hz
8000 Hz
8500 Hz
9000 Hz
7498.94 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
–3.20
–3.50
–3.84
–4.22
0.63
0.75
0.87
1.03
3.04
3.38
3.75
4.14
2.62
2.81
2.99
3.18
2.46
2.69
2.89
3.10
0.04
0.06
0.02
–0.01
0.17
0.18
0.19
0.20
BE171211.book Page 63 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
Nominal
Frequency
Exact
Frequency
Actuator
Response
Micr. FF
Correction
Micr. DF
Correction
Electrical
Response
Acoustical
Response
Expanded
Uncertainty
dB
Reference
Direction
Response
dB
dB
dB
dB
dB
dB
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
–4.65
–5.10
–5.57
–6.01
1.23
1.53
1.86
2.20
4.60
5.12
5.68
6.27
3.36
3.54
3.72
3.89
3.31
3.56
3.83
4.15
–0.05
–0.03
0.01
0.08
0.22
0.23
0.24
0.26
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
–6.39
–6.69
–6.93
–7.15
2.44
2.51
2.54
2.59
6.81
7.19
7.54
7.89
4.05
4.21
4.38
4.56
4.46
4.71
4.99
5.30
0.10
0.02
–0.01
0.00
0.28
0.29
0.31
0.33
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
–7.40
–7.68
–8.02
–8.50
2.60
2.58
2.52
2.47
8.24
8.59
8.91
9.27
4.79
5.09
5.51
6.06
5.63
6.00
6.41
6.82
0.00
–0.01
0.02
0.03
0.35
0.38
0.40
0.43
19000 Hz
20000 Hz
21200 Hz
22400 Hz
18836.5 Hz
19952.6 Hz
21134.9 Hz
22387.2 Hz
–9.21
–10.09
–11.10
–12.31
2.47
2.48
2.48
2.42
9.62
10.05
10.46
10.85
6.74
7.47
8.13
8.59
7.16
7.43
7.48
7.13
0.00
–0.14
–0.50
–1.30
0.45
0.48
0.49
0.49
63
Table A.8
Diffuse-field frequency response for Hand-held Analyzer Type 2250 (including Microphone Type 4189),
or Microphone Type 4189 only, with Windscreen UA 1650 fitted. Sound Field Correction parameter set to ‘Diffusefield’ and the Windscreen Correction parameter set to ‘Auto Detect’ or ‘UA 1650’.
Nominal
Frequency
Exact
Frequency
Microphone
Diffuse-field
dB
Expanded
Uncertainty
dB
Influence of
Windscreen
dB
Expanded
Uncertainty
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
63 Hz
80 Hz
63.0957 Hz
79.4328 Hz
0.00
0.00
0.05
0.05
0.01
0.02
0.05
0.05
0.00
0.00
0.01
0.02
0.07
0.07
100 Hz
125 Hz
160 Hz
100 Hz
125.893 Hz
158.489 Hz
0.00
0.00
0.00
0.05
0.05
0.05
0.02
0.02
0.01
0.05
0.05
0.05
0.00
0.00
0.00
0.02
0.02
0.00
0.07
0.07
0.07
200 Hz
250 Hz
315 Hz
199.526 Hz
251.189 Hz
316.228 Hz
0.01
0.00
–0.01
0.05
0.05
0.06
0.00
0.02
0.05
0.05
0.05
0.05
0.00
0.00
–0.01
0.01
0.02
0.03
0.07
0.07
0.08
400 Hz
500 Hz
630 Hz
398.107 Hz
501.187 Hz
630.957 Hz
–0.03
–0.04
–0.06
0.06
0.07
0.07
0.07
0.09
0.08
0.05
0.05
0.05
–0.01
–0.02
–0.03
0.04
0.03
0.00
0.08
0.09
0.09
800 Hz
1000 Hz
1060 Hz
1120 Hz
794.328 Hz
1000 Hz
1059.25 Hz
1122.02 Hz
–0.08
–0.11
–0.12
–0.13
0.07
0.07
0.07
0.07
0.12
0.15
0.17
0.18
0.05
0.05
0.08
0.08
–0.04
–0.07
–0.08
–0.09
0.00
–0.03
–0.03
–0.05
0.09
0.09
0.11
0.11
1180 Hz
1250 Hz
1320 Hz
1400 Hz
1188.50 Hz
1258.93 Hz
1333.52 Hz
1412.54 Hz
–0.15
–0.17
–0.19
–0.21
0.08
0.08
0.08
0.08
0.19
0.22
0.25
0.27
0.08
0.08
0.10
0.10
–0.10
–0.12
–0.13
–0.15
–0.05
–0.06
–0.07
–0.09
0.11
0.11
0.13
0.13
1500 Hz
1600 Hz
1700 Hz
1800 Hz
1496.24 Hz
1584.89 Hz
1678.80 Hz
1778.28 Hz
–0.23
–0.26
–0.28
–0.29
0.08
0.08
0.08
0.09
0.29
0.30
0.33
0.34
0.10
0.12
0.15
0.15
–0.16
–0.18
–0.20
–0.22
–0.10
–0.13
–0.15
–0.17
0.13
0.14
0.17
0.17
1900 Hz
2000 Hz
2120 Hz
2240 Hz
1883.65 Hz
1995.26 Hz
2113.49 Hz
2238.72 Hz
–0.30
–0.31
–0.32
–0.35
0.09
0.09
0.09
0.09
0.39
0.42
0.46
0.48
0.15
0.15
0.15
0.15
–0.24
–0.26
–0.28
–0.29
–0.16
–0.15
–0.15
–0.15
0.17
0.17
0.17
0.17
2360 Hz
2500 Hz
2650 Hz
2800 Hz
2371.37 Hz
2511.89 Hz
2660.73 Hz
2818.38 Hz
–0.38
–0.44
–0.50
–0.56
0.10
0.10
0.10
0.11
0.49
0.53
0.54
0.53
0.15
0.15
0.15
0.15
–0.28
–0.26
–0.21
–0.12
–0.17
–0.17
–0.17
–0.15
0.18
0.18
0.18
0.19
3000 Hz
3150 Hz
3350 Hz
3550 Hz
2985.38 Hz
3162.28 Hz
3349.65 Hz
3548.13 Hz
–0.62
–0.69
–0.76
–0.83
0.11
0.12
0.12
0.13
0.49
0.43
0.37
0.27
0.15
0.15
0.15
0.15
0.00
0.16
0.35
0.57
–0.14
–0.10
–0.04
0.01
0.19
0.19
0.19
0.20
BE171211.book Page 64 Thursday, May 27, 2004 1:01 PM
64
Hand-held Analyzer Type 2250 – Instruction Manual
Nominal
Frequency
Exact
Frequency
3750 Hz
4000 Hz
4250 Hz
4500 Hz
3758.37 Hz
3981.07 Hz
4216.97 Hz
4466.84 Hz
4750 Hz
5000 Hz
5300 Hz
5600 Hz
Microphone
Diffuse-field
dB
Expanded
Uncertainty
dB
Influence of
Windscreen
dB
Expanded
Uncertainty
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
–0.91
–1.01
–1.15
–1.29
0.13
0.14
0.14
0.14
0.17
0.04
–0.07
–0.10
0.15
0.15
0.15
0.15
0.79
1.02
1.23
1.44
0.05
0.05
0.02
0.05
0.20
0.21
0.21
0.21
4731.51 Hz
5011.87 Hz
5308.84 Hz
5623.41 Hz
–1.41
–1.51
–1.63
–1.77
0.14
0.15
0.15
0.15
–0.18
–0.17
–0.14
–0.08
0.25
0.35
0.45
0.50
1.63
1.82
2.00
2.17
0.04
0.14
0.22
0.31
0.29
0.38
0.47
0.52
6000 Hz
6300 Hz
6700 Hz
7100 Hz
5956.62 Hz
6309.57 Hz
6683.44 Hz
7079.46 Hz
–1.94
–2.12
–2.28
–2.45
0.16
0.16
0.17
0.17
–0.10
–0.06
–0.04
–0.29
0.50
0.50
0.50
0.50
2.35
2.53
2.72
2.91
0.31
0.35
0.40
0.17
0.52
0.52
0.53
0.53
7500 Hz
8000 Hz
8500 Hz
9000 Hz
7498.94 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
–2.58
–2.75
–2.97
–3.19
0.17
0.18
0.19
0.20
–0.40
–0.54
–0.44
–0.48
0.50
0.50
0.50
0.50
3.12
3.33
3.56
3.80
0.14
0.03
0.15
0.13
0.53
0.53
0.53
0.54
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.18 Hz
–3.41
–3.57
–3.71
–3.81
0.22
0.23
0.24
0.26
–0.61
–0.73
–0.83
–1.20
0.50
0.50
0.80
0.80
4.05
4.32
4.60
4.89
0.03
0.01
0.06
–0.12
0.55
0.55
0.84
0.84
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.02 Hz
12589.25 Hz
13335.21 Hz
14125.38 Hz
–3.95
–4.19
–4.39
–4.56
0.28
0.29
0.31
0.33
–1.18
–0.97
–1.26
–1.33
0.80
0.80
0.80
0.80
5.18
5.49
5.80
6.11
0.05
0.33
0.14
0.22
0.85
0.85
0.86
0.87
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.36 Hz
15848.93 Hz
16788.04 Hz
17782.79 Hz
–4.79
–5.10
–5.49
–6.03
0.35
0.38
0.40
0.43
–1.70
–1.35
–1.33
–1.58
0.80
0.80
0.80
0.80
6.42
6.73
7.02
7.28
–0.08
0.28
0.19
–0.33
0.87
0.89
0.89
0.91
19000 Hz
20000 Hz
21200 Hz
22400 Hz
18836.49 Hz
19952.62 Hz
21134.89 Hz
22387.21 Hz
–6.74
–7.61
–8.63
–9.89
0.45
0.48
0.49
0.49
–1.85
–1.38
–1.46
–1.84
0.80
0.80
0.80
0.80
7.53
7.73
7.88
7.96
–1.06
–1.26
–2.21
–3.77
0.92
0.93
0.94
0.94
Table A.9
Diffuse-field frequency response for Microphone Type 4189 only, with Outdoor Microphone Kit UA 1404
fitted. Sound Field Correction parameter set to ‘Diffuse-field’ and the Windscreen Correction parameter set to
‘UA 1404’.
Nominal
Frequency
Exact
Frequency
Typical 4189
Response
dB
Expanded
Uncertainty
dB
Influence of
Windscreen
dB
Expanded
Uncertainty
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
63 Hz
80 Hz
63.0957 Hz
79.4328 Hz
0.00
0.00
0.05
0.05
0.00
0.00
0.05
0.05
0.00
0.00
0.00
0.00
0.07
0.07
100 Hz
125 Hz
160 Hz
100 Hz
125.893 Hz
158.489 Hz
0.00
0.00
0.00
0.05
0.05
0.05
0.00
0.00
0.00
0.05
0.05
0.05
0.00
0.00
0.01
0.00
0.00
0.01
0.07
0.07
0.07
200 Hz
250 Hz
315 Hz
199.526 Hz
251.189 Hz
316.228 Hz
0.01
0.00
–0.01
0.05
0.05
0.06
0.00
0.01
0.02
0.05
0.05
0.05
0.01
0.01
0.02
0.02
0.02
0.03
0.07
0.07
0.08
400 Hz
500 Hz
630 Hz
398.107 Hz
501.187 Hz
630.957 Hz
–0.03
–0.04
–0.06
0.06
0.07
0.07
0.04
0.05
0.07
0.05
0.05
0.05
0.02
0.03
0.05
0.03
0.04
0.07
0.08
0.09
0.09
800 Hz
1000 Hz
1060 Hz
1120 Hz
794.328 Hz
1000 Hz
1059.25 Hz
1122.02 Hz
–0.08
–0.11
–0.12
–0.13
0.07
0.07
0.07
0.07
0.10
0.09
0.07
0.05
0.05
0.05
0.08
0.08
0.08
0.13
0.15
0.16
0.10
0.11
0.10
0.08
0.09
0.09
0.11
0.11
1180 Hz
1250 Hz
1320 Hz
1400 Hz
1188.50 Hz
1258.93 Hz
1333.52 Hz
1412.54 Hz
–0.15
–0.17
–0.19
–0.21
0.08
0.08
0.08
0.08
0.03
0.02
0.02
0.02
0.08
0.08
0.10
0.10
0.18
0.21
0.23
0.26
0.06
0.06
0.06
0.07
0.11
0.11
0.13
0.13
BE171211.book Page 65 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
Nominal
Frequency
Exact
Frequency
1500 Hz
1600 Hz
1700 Hz
1800 Hz
1496.24 Hz
1584.89 Hz
1678.80 Hz
1778.28 Hz
1900 Hz
2000 Hz
2120 Hz
2240 Hz
Typical 4189
Response
dB
Expanded
Uncertainty
dB
Influence of
Windscreen
dB
Expanded
Uncertainty
dB
Electrical
Response
dB
Acoustical
Response
dB
Expanded
Uncertainty
dB
–0.23
–0.26
–0.28
–0.29
0.08
0.08
0.08
0.09
0.03
0.03
0.03
0.03
0.10
0.12
0.15
0.15
0.29
0.32
0.35
0.39
0.08
0.10
0.11
0.13
0.13
0.14
0.17
0.17
1883.65 Hz
1995.26 Hz
2113.49 Hz
2238.72 Hz
–0.30
–0.31
–0.32
–0.35
0.09
0.09
0.09
0.09
0.02
0.00
–0.03
–0.05
0.15
0.15
0.15
0.15
0.44
0.49
0.54
0.60
0.15
0.17
0.19
0.20
0.17
0.17
0.17
0.17
2360 Hz
2500 Hz
2650 Hz
2800 Hz
2371.37 Hz
2511.89 Hz
2660.73 Hz
2818.38 Hz
–0.38
–0.44
–0.50
–0.56
0.10
0.10
0.10
0.11
–0.08
–0.10
–0.13
–0.18
0.15
0.15
0.15
0.15
0.66
0.73
0.81
0.89
0.20
0.20
0.18
0.15
0.18
0.18
0.18
0.19
3000 Hz
3150 Hz
3350 Hz
3550 Hz
2985.38 Hz
3162.28 Hz
3349.65 Hz
3548.13 Hz
–0.62
–0.69
–0.76
–0.83
0.11
0.12
0.12
0.13
–0.23
–0.29
–0.35
–0.40
0.15
0.15
0.15
0.15
0.98
1.07
1.17
1.28
0.12
0.09
0.07
0.05
0.19
0.19
0.19
0.20
3750 Hz
4000 Hz
4250 Hz
4500 Hz
3758.37 Hz
3981.07 Hz
4216.97 Hz
4466.84 Hz
–0.91
–1.01
–1.15
–1.29
0.13
0.14
0.14
0.14
–0.46
–0.50
–0.52
–0.55
0.15
0.15
0.15
0.15
1.40
1.52
1.64
1.77
0.03
0.00
–0.03
–0.06
0.20
0.21
0.21
0.21
4750 Hz
5000 Hz
5300 Hz
5600 Hz
4731.51 Hz
5011.87 Hz
5308.84 Hz
5623.41 Hz
–1.41
–1.51
–1.63
–1.77
0.14
0.15
0.15
0.15
–0.60
–0.70
–0.83
–0.94
0.25
0.35
0.45
0.50
1.90
2.04
2.17
2.30
–0.11
–0.18
–0.29
–0.42
0.29
0.38
0.47
0.52
6000 Hz
6300 Hz
6700 Hz
7100 Hz
5956.62 Hz
6309.57 Hz
6683.44 Hz
7079.46 Hz
–1.94
–2.12
–2.28
–2.45
0.16
0.16
0.17
0.17
–1.01
–1.00
–0.89
–0.67
0.50
0.50
0.50
0.50
2.42
2.54
2.63
2.71
–0.53
–0.58
–0.55
–0.41
0.52
0.52
0.53
0.53
7500 Hz
8000 Hz
8500 Hz
9000 Hz
7498.94 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
–2.58
–2.75
–2.97
–3.19
0.17
0.18
0.19
0.20
–0.42
–0.08
0.30
0.67
0.50
0.50
0.50
0.50
2.77
2.79
2.77
2.71
–0.22
–0.04
0.10
0.19
0.53
0.53
0.53
0.54
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
–3.41
–3.57
–3.71
–3.81
0.22
0.23
0.24
0.26
1.00
1.23
1.40
1.47
0.50
0.50
0.80
0.80
2.61
2.48
2.37
2.34
0.20
0.14
0.06
–0.01
0.55
0.55
0.84
0.84
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
–3.95
–4.19
–4.39
–4.56
0.28
0.29
0.31
0.33
1.47
1.36
1.02
0.69
0.80
0.80
0.80
0.80
2.47
2.81
3.32
3.90
–0.01
–0.02
–0.05
0.03
0.85
0.85
0.86
0.87
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
–4.79
–5.10
–5.49
–6.03
0.35
0.38
0.40
0.43
0.43
0.25
0.34
0.56
0.80
0.80
0.80
0.80
4.43
4.86
5.16
5.34
0.07
0.01
0.00
–0.13
0.87
0.89
0.89
0.91
19000 Hz
20000 Hz
21200 Hz
22400 Hz
18836.5 Hz
19952.6 Hz
21134.9 Hz
22387.2 Hz
–6.74
–7.61
–8.63
–9.89
0.45
0.48
0.49
0.49
0.63
0.49
0.40
–0.02
0.80
0.80
0.80
0.80
5.41
5.41
5.34
5.25
–0.69
–1.71
–2.88
–4.66
0.92
0.93
0.94
0.94
65
BE171211.book Page 66 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
66
A.4
Directional Responses
Directional responses, including sensitivity variations of equipment at varying sound incidence angles
and influence of equipment on the directional responses.
Table A.10
Directional response for Microphone Type 4189 only, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1000 Hz
1250 Hz
1600 Hz
2000 Hz
2240 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
0.00
0.00
0.00
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
–0.01
–0.01
–0.01
0.00
–0.02
–0.02
–0.02
–0.01
–0.03
0.00
–0.01
–0.02
–0.02
–0.03
–0.04
0.00
–0.01
–0.01
–0.01
–0.03
–0.04
0.00
0.00
–0.01
–0.01
–0.02
–0.03
0.00
–0.01
–0.01
–0.01
–0.02
–0.04
0.00
0.00
–0.01
–0.03
–0.05
–0.07
0.00
–0.01
–0.02
–0.04
–0.07
–0.12
0.00
–0.01
–0.02
–0.03
–0.06
–0.10
0.00
–0.01
–0.01
–0.03
–0.06
–0.09
30°
35°
40°
45°
50°
55°
0.01
0.01
0.00
0.00
–0.01
–0.01
0.00
0.00
–0.01
–0.02
–0.02
–0.03
–0.01
–0.02
–0.03
–0.04
–0.04
–0.05
–0.04
–0.04
–0.04
–0.05
–0.07
–0.07
–0.05
–0.05
–0.07
–0.08
–0.10
–0.11
–0.06
–0.08
–0.10
–0.12
–0.15
–0.17
–0.04
–0.06
–0.08
–0.10
–0.14
–0.17
–0.05
–0.07
–0.08
–0.10
–0.12
–0.15
–0.09
–0.13
–0.15
–0.17
–0.20
–0.23
–0.16
–0.20
–0.25
–0.29
–0.35
–0.40
–0.15
–0.20
–0.26
–0.33
–0.40
–0.47
–0.15
–0.19
–0.25
–0.32
–0.40
–0.49
60°
65°
70°
75°
80°
85°
90°
95°
100°
105°
110°
115°
–0.02
–0.02
–0.03
–0.03
–0.04
–0.04
–0.05
–0.05
–0.05
–0.06
–0.06
–0.06
–0.03
–0.04
–0.05
–0.05
–0.06
–0.06
–0.07
–0.07
–0.08
–0.08
–0.08
–0.09
–0.06
–0.07
–0.07
–0.08
–0.09
–0.10
–0.10
–0.11
–0.11
–0.12
–0.12
–0.12
–0.08
–0.10
–0.10
–0.12
–0.13
–0.15
–0.15
–0.15
–0.17
–0.17
–0.17
–0.18
–0.13
–0.14
–0.16
–0.18
–0.19
–0.21
–0.22
–0.23
–0.25
–0.25
–0.26
–0.26
–0.20
–0.22
–0.25
–0.27
–0.29
–0.31
–0.33
–0.35
–0.37
–0.38
–0.39
–0.40
–0.20
–0.24
–0.27
–0.31
–0.35
–0.38
–0.41
–0.44
–0.47
–0.49
–0.51
–0.52
–0.18
–0.22
–0.25
–0.30
–0.34
–0.38
–0.42
–0.45
–0.49
–0.52
–0.54
–0.56
–0.25
–0.28
–0.31
–0.35
–0.39
–0.42
–0.47
–0.51
–0.55
–0.59
–0.62
–0.65
–0.43
–0.46
–0.49
–0.52
–0.55
–0.58
–0.62
–0.65
–0.70
–0.74
–0.78
–0.81
–0.54
–0.60
–0.65
–0.70
–0.73
–0.77
–0.79
–0.83
–0.86
–0.90
–0.93
–0.97
–0.57
–0.65
–0.73
–0.80
–0.86
–0.91
–0.96
–1.00
–1.03
–1.06
–1.09
–1.13
120°
125°
130°
135°
140°
145°
–0.06
–0.06
–0.06
–0.06
–0.06
–0.05
–0.09
–0.09
–0.08
–0.08
–0.08
–0.08
–0.13
–0.12
–0.12
–0.12
–0.11
–0.11
–0.18
–0.17
–0.17
–0.17
–0.16
–0.15
–0.26
–0.26
–0.25
–0.25
–0.24
–0.22
–0.40
–0.39
–0.38
–0.37
–0.36
–0.34
–0.53
–0.52
–0.51
–0.50
–0.47
–0.44
–0.57
–0.57
–0.56
–0.55
–0.52
–0.49
–0.67
–0.68
–0.67
–0.65
–0.62
–0.59
–0.84
–0.85
–0.85
–0.84
–0.81
–0.77
–1.00
–1.03
–1.04
–1.03
–1.00
–0.95
–1.17
–1.20
–1.22
–1.21
–1.19
–1.14
150°
155°
160°
165°
170°
175°
–0.05
–0.05
–0.05
–0.04
–0.04
–0.04
–0.08
–0.07
–0.07
–0.07
–0.06
–0.06
–0.11
–0.11
–0.10
–0.10
–0.10
–0.09
–0.14
–0.14
–0.13
–0.12
–0.12
–0.12
–0.22
–0.20
–0.19
–0.19
–0.18
–0.18
–0.32
–0.30
–0.29
–0.28
–0.27
–0.26
–0.42
–0.39
–0.37
–0.35
–0.33
–0.32
–0.45
–0.42
–0.39
–0.36
–0.34
–0.33
–0.55
–0.50
–0.47
–0.43
–0.41
–0.39
–0.71
–0.66
–0.61
–0.57
–0.54
–0.52
–0.89
–0.83
–0.77
–0.72
–0.68
–0.66
–1.07
–1.00
–0.93
–0.86
–0.82
–0.79
180°
185°
190°
195°
200°
205°
–0.04
–0.04
–0.04
–0.04
–0.05
–0.05
–0.06
–0.06
–0.06
–0.07
–0.07
–0.07
–0.09
–0.09
–0.10
–0.10
–0.10
–0.11
–0.12
–0.11
–0.12
–0.13
–0.13
–0.13
–0.18
–0.18
–0.18
–0.19
–0.19
–0.20
–0.26
–0.27
–0.27
–0.28
–0.29
–0.31
–0.32
–0.32
–0.33
–0.35
–0.37
–0.40
–0.33
–0.34
–0.35
–0.37
–0.39
–0.43
–0.39
–0.40
–0.41
–0.44
–0.47
–0.51
–0.52
–0.53
–0.54
–0.57
–0.62
–0.66
–0.65
–0.66
–0.68
–0.72
–0.78
–0.84
–0.78
–0.79
–0.82
–0.87
–0.94
–1.01
210°
215°
220°
225°
230°
235°
–0.05
–0.05
–0.06
–0.06
–0.06
–0.06
–0.08
–0.08
–0.08
–0.08
–0.08
–0.09
–0.11
–0.11
–0.11
–0.12
–0.12
–0.12
–0.14
–0.15
–0.15
–0.16
–0.17
–0.17
–0.22
–0.23
–0.24
–0.25
–0.26
–0.26
–0.32
–0.34
–0.36
–0.38
–0.39
–0.40
–0.42
–0.45
–0.48
–0.50
–0.52
–0.53
–0.46
–0.49
–0.53
–0.55
–0.57
–0.58
–0.55
–0.59
–0.63
–0.66
–0.68
–0.69
–0.72
–0.77
–0.81
–0.85
–0.86
–0.87
–0.90
–0.96
–1.01
–1.04
–1.06
–1.05
–1.09
–1.16
–1.21
–1.24
–1.25
–1.23
240°
245°
250°
255°
260°
265°
–0.06
–0.06
–0.06
–0.06
–0.05
–0.05
–0.09
–0.09
–0.08
–0.08
–0.08
–0.07
–0.13
–0.12
–0.12
–0.12
–0.11
–0.11
–0.16
–0.17
–0.17
–0.17
–0.16
–0.15
–0.27
–0.27
–0.26
–0.26
–0.25
–0.24
–0.40
–0.40
–0.40
–0.39
–0.37
–0.36
–0.53
–0.53
–0.52
–0.50
–0.48
–0.45
–0.58
–0.57
–0.56
–0.53
–0.50
–0.47
–0.68
–0.67
–0.64
–0.60
–0.56
–0.52
–0.85
–0.83
–0.79
–0.75
–0.70
–0.65
–1.03
–0.99
–0.95
–0.90
–0.85
–0.81
–1.20
–1.15
–1.10
–1.05
–1.01
–0.97
270°
275°
280°
285°
290°
295°
–0.05
–0.04
–0.04
–0.03
–0.03
–0.02
–0.07
–0.06
–0.06
–0.05
–0.05
–0.04
–0.10
–0.10
–0.09
–0.08
–0.07
–0.07
–0.14
–0.13
–0.12
–0.11
–0.10
–0.09
–0.22
–0.21
–0.19
–0.18
–0.16
–0.15
–0.34
–0.32
–0.30
–0.28
–0.26
–0.23
–0.42
–0.39
–0.35
–0.31
–0.27
–0.23
–0.42
–0.38
–0.33
–0.29
–0.24
–0.21
–0.47
–0.42
–0.37
–0.33
–0.30
–0.27
–0.60
–0.56
–0.52
–0.50
–0.48
–0.46
–0.77
–0.74
–0.72
–0.70
–0.67
–0.62
–0.95
–0.92
–0.88
–0.83
–0.75
–0.66
300°
305°
310°
315°
320°
325°
–0.02
–0.01
–0.01
0.00
0.00
0.01
–0.03
–0.03
–0.02
–0.02
–0.01
0.00
–0.06
–0.05
–0.04
–0.04
–0.03
–0.02
–0.07
–0.06
–0.05
–0.04
–0.03
–0.02
–0.12
–0.11
–0.09
–0.08
–0.07
–0.05
–0.20
–0.17
–0.15
–0.12
–0.10
–0.08
–0.19
–0.15
–0.12
–0.09
–0.07
–0.05
–0.17
–0.14
–0.12
–0.10
–0.08
–0.06
–0.24
–0.23
–0.21
–0.18
–0.16
–0.14
–0.43
–0.40
–0.36
–0.31
–0.26
–0.21
–0.56
–0.48
–0.40
–0.32
–0.25
–0.19
–0.56
–0.46
–0.38
–0.30
–0.24
–0.19
330°
335°
340°
345°
350°
355°
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
–0.01
–0.01
–0.01
–0.01
0.00
0.00
–0.01
0.01
0.01
0.02
0.02
0.02
–0.04
–0.03
–0.01
0.00
0.00
0.00
–0.05
–0.04
–0.02
–0.01
–0.01
0.00
–0.03
–0.02
–0.01
0.00
0.00
0.01
–0.05
–0.04
–0.03
–0.02
–0.01
0.00
–0.11
–0.08
–0.06
–0.04
–0.02
–0.02
–0.16
–0.11
–0.07
–0.04
–0.03
–0.01
–0.13
–0.09
–0.05
–0.02
0.00
0.01
–0.14
–0.09
–0.06
–0.03
–0.01
0.01
BE171211.book Page 67 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
Table A.11
Directional response for Microphone Type 4189 only, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
10000 Hz 10600 Hz
0°
5°
10°
15°
20°
25°
0.00
–0.01
–0.03
–0.05
–0.09
–0.15
0.00
–0.01
–0.04
–0.08
–0.14
–0.23
0.00
–0.01
–0.03
–0.04
–0.08
–0.15
0.00
–0.01
–0.05
–0.10
–0.17
–0.26
0.00
0.00
–0.02
–0.06
–0.11
–0.19
0.00
0.00
–0.04
–0.10
–0.20
–0.35
0.00
0.00
–0.06
–0.15
–0.26
–0.40
0.00
–0.01
–0.05
–0.12
–0.21
–0.36
0.00
–0.01
–0.09
–0.21
–0.37
–0.58
0.00
0.00
–0.05
–0.11
–0.22
–0.41
0.00
–0.02
–0.11
–0.23
–0.39
–0.57
0.00
–0.01
–0.05
–0.11
–0.23
–0.43
30°
35°
40°
45°
50°
55°
–0.21
–0.26
–0.33
–0.40
–0.49
–0.58
–0.33
–0.41
–0.50
–0.59
–0.68
–0.78
–0.26
–0.39
–0.54
–0.72
–0.88
–1.02
–0.33
–0.39
–0.44
–0.53
–0.68
–0.92
–0.31
–0.46
–0.64
–0.84
–0.99
–1.09
–0.53
–0.74
–0.90
–1.05
–1.21
–1.41
–0.52
–0.63
–0.74
–0.94
–1.23
–1.59
–0.55
–0.79
–1.01
–1.18
–1.31
–1.52
–0.77
–0.94
–1.15
–1.44
–1.76
–2.00
–0.68
–1.02
–1.35
–1.59
–1.79
–2.15
–0.71
–0.86
–1.15
–1.61
–2.04
–2.22
–0.74
–1.10
–1.39
–1.61
–2.00
–2.66
60°
65°
70°
75°
80°
85°
90°
95°
100°
105°
110°
115°
–0.68
–0.77
–0.86
–0.93
–1.00
–1.06
–1.12
–1.18
–1.22
–1.25
–1.28
–1.31
–0.89
–1.02
–1.15
–1.27
–1.34
–1.40
–1.44
–1.51
–1.56
–1.60
–1.62
–1.65
–1.11
–1.20
–1.33
–1.52
–1.71
–1.85
–1.92
–1.96
–1.99
–2.04
–2.07
–2.09
–1.19
–1.39
–1.49
–1.54
–1.64
–1.84
–2.07
–2.22
–2.29
–2.31
–2.32
–2.33
–1.20
–1.42
–1.76
–2.08
–2.23
–2.27
–2.35
–2.53
–2.71
–2.82
–2.86
–2.87
–1.64
–1.79
–1.91
–2.12
–2.47
–2.81
–3.01
–3.11
–3.23
–3.37
–3.48
–3.53
–1.88
–2.10
–2.34
–2.61
–2.84
–3.04
–3.27
–3.52
–3.73
–3.87
–3.97
–4.04
–1.85
–2.21
–2.44
–2.63
–2.95
–3.34
–3.61
–3.79
–3.98
–4.19
–4.32
–4.41
–2.16
–2.45
–2.87
–3.11
–3.19
–3.49
–3.98
–4.28
–4.41
–4.57
–4.74
–4.85
–2.55
–2.80
–3.11
–3.63
–3.92
–3.87
–4.12
–4.69
–5.02
–5.14
–5.32
–5.45
–2.42
–2.85
–3.17
–3.46
–4.11
–4.51
–4.42
–4.68
–5.22
–5.49
–5.64
–5.78
–3.08
–3.24
–3.63
–3.96
–4.14
–4.73
–5.19
–5.23
–5.61
–6.01
–6.21
–6.42
120°
125°
130°
135°
140°
145°
–1.34
–1.38
–1.41
–1.41
–1.39
–1.34
–1.68
–1.71
–1.74
–1.76
–1.75
–1.69
–2.11
–2.15
–2.20
–2.23
–2.24
–2.20
–2.34
–2.36
–2.39
–2.44
–2.46
–2.42
–2.84
–2.83
–2.85
–2.90
–2.96
–2.97
–3.53
–3.48
–3.46
–3.49
–3.57
–3.63
–4.06
–4.02
–3.92
–3.87
–3.91
–3.98
–4.48
–4.48
–4.38
–4.28
–4.28
–4.36
–4.93
–4.94
–4.84
–4.70
–4.66
–4.72
–5.54
–5.60
–5.50
–5.33
–5.28
–5.32
–5.85
–5.93
–5.87
–5.65
–5.53
–5.57
–6.51
–6.59
–6.63
–6.43
–6.22
–6.22
150°
155°
160°
165°
170°
175°
–1.26
–1.17
–1.09
–1.01
–0.95
–0.92
–1.61
–1.50
–1.38
–1.29
–1.21
–1.16
–2.11
–1.99
–1.85
–1.73
–1.65
–1.59
–2.32
–2.18
–2.01
–1.86
–1.74
–1.67
–2.88
–2.73
–2.54
–2.35
–2.20
–2.11
–3.60
–3.45
–3.24
–3.01
–2.83
–2.71
–3.99
–3.86
–3.62
–3.35
–3.13
–2.99
–4.40
–4.29
–4.05
–3.77
–3.52
–3.36
–4.77
–4.69
–4.45
–4.15
–3.88
–3.71
–5.37
–5.27
–5.02
–4.69
–4.40
–4.20
–5.63
–5.56
–5.29
–4.94
–4.61
–4.39
–6.31
–6.25
–5.98
–5.57
–5.20
–4.96
180°
185°
190°
195°
200°
205°
–0.90
–0.92
–0.95
–1.02
–1.09
–1.19
–1.14
–1.17
–1.21
–1.29
–1.39
–1.51
–1.58
–1.60
–1.66
–1.77
–1.90
–2.04
–1.65
–1.68
–1.77
–1.90
–2.06
–2.22
–2.09
–2.13
–2.23
–2.39
–2.58
–2.76
–2.68
–2.73
–2.86
–3.04
–3.26
–3.46
–2.94
–2.99
–3.14
–3.36
–3.63
–3.88
–3.31
–3.37
–3.53
–3.78
–4.09
–4.37
–3.64
–3.71
–3.89
–4.19
–4.54
–4.84
–4.13
–4.20
–4.41
–4.75
–5.15
–5.43
–4.32
–4.41
–4.67
–5.07
–5.49
–5.73
–4.88
–5.00
–5.31
–5.75
–6.14
–6.33
210°
215°
220°
225°
230°
235°
–1.28
–1.36
–1.42
–1.45
–1.44
–1.40
–1.63
–1.72
–1.77
–1.78
–1.76
–1.72
–2.17
–2.26
–2.29
–2.27
–2.23
–2.17
–2.36
–2.44
–2.46
–2.44
–2.39
–2.34
–2.90
–2.97
–2.97
–2.93
–2.87
–2.83
–3.61
–3.67
–3.65
–3.59
–3.53
–3.52
–4.04
–4.06
–3.99
–3.92
–3.95
–4.02
–4.52
–4.49
–4.38
–4.33
–4.36
–4.42
–4.93
–4.83
–4.73
–4.75
–4.80
–4.85
–5.47
–5.38
–5.33
–5.35
–5.41
–5.51
–5.72
–5.65
–5.59
–5.56
–5.66
–5.81
–6.33
–6.27
–6.19
–6.21
–6.41
–6.51
240°
245°
250°
255°
260°
265°
–1.36
–1.32
–1.27
–1.23
–1.19
–1.17
–1.68
–1.63
–1.59
–1.56
–1.53
–1.51
–2.12
–2.08
–2.05
–2.02
–2.01
–1.98
–2.29
–2.27
–2.28
–2.30
–2.28
–2.16
–2.81
–2.83
–2.87
–2.82
–2.66
–2.45
–3.55
–3.59
–3.54
–3.37
–3.19
–3.12
–4.07
–4.04
–3.92
–3.78
–3.71
–3.53
–4.44
–4.38
–4.25
–4.13
–3.99
–3.74
–4.88
–4.81
–4.65
–4.53
–4.41
–4.18
–5.54
–5.35
–5.17
–5.11
–4.94
–4.55
–5.73
–5.47
–5.44
–5.39
–4.97
–4.49
–6.28
–6.13
–6.17
–5.89
–5.39
–5.17
270°
275°
280°
285°
290°
295°
–1.13
–1.08
–1.01
–0.92
–0.82
–0.72
–1.46
–1.40
–1.30
–1.22
–1.10
–1.00
–1.91
–1.79
–1.64
–1.49
–1.35
–1.23
–1.97
–1.77
–1.63
–1.55
–1.48
–1.32
–2.32
–2.29
–2.24
–2.03
–1.69
–1.38
–3.07
–2.82
–2.41
–2.09
–1.94
–1.83
–3.20
–2.93
–2.82
–2.62
–2.26
–1.99
–3.48
–3.29
–2.96
–2.55
–2.32
–2.21
–3.89
–3.48
–3.10
–2.98
–2.90
–2.53
–4.08
–3.79
–3.77
–3.62
–3.14
–2.73
–4.29
–4.31
–4.03
–3.45
–3.05
–2.78
–5.05
–4.64
–4.15
–3.89
–3.60
–3.23
300°
305°
310°
315°
320°
325°
–0.63
–0.55
–0.48
–0.41
–0.35
–0.28
–0.90
–0.80
–0.72
–0.62
–0.51
–0.41
–1.12
–0.99
–0.82
–0.66
–0.48
–0.35
–1.09
–0.85
–0.66
–0.54
–0.47
–0.41
–1.20
–1.10
–0.99
–0.81
–0.60
–0.41
–1.60
–1.32
–1.14
–1.04
–0.96
–0.81
–1.86
–1.65
–1.30
–0.93
–0.70
–0.60
–1.94
–1.53
–1.24
–1.13
–1.04
–0.86
–2.11
–1.91
–1.76
–1.50
–1.17
–0.89
–2.50
–2.19
–1.80
–1.49
–1.26
–1.02
–2.41
–2.10
–1.89
–1.61
–1.25
–0.95
–2.96
–2.60
–2.10
–1.71
–1.39
–1.05
330°
335°
340°
345°
350°
355°
–0.23
–0.18
–0.13
–0.09
–0.06
–0.05
–0.31
–0.21
–0.13
–0.06
–0.02
0.01
–0.24
–0.16
–0.10
–0.08
–0.05
–0.05
–0.35
–0.27
–0.18
–0.11
–0.05
–0.01
–0.27
–0.18
–0.12
–0.07
–0.05
–0.03
–0.62
–0.41
–0.24
–0.12
–0.04
0.00
–0.54
–0.47
–0.37
–0.26
–0.15
–0.10
–0.63
–0.40
–0.22
–0.11
–0.03
0.01
–0.70
–0.54
–0.38
–0.24
–0.13
–0.05
–0.76
–0.51
–0.32
–0.19
–0.11
–0.06
–0.72
–0.54
–0.35
–0.19
–0.06
0.01
–0.72
–0.45
–0.29
–0.18
–0.11
–0.07
67
BE171211.book Page 68 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
68
Table A.12
Directional response for Microphone Type 4189 only, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.00
–0.02
–0.10
–0.24
–0.42
–0.64
0.00
–0.02
–0.10
–0.20
–0.32
–0.49
0.00
–0.02
–0.10
–0.22
–0.45
–0.78
0.00
–0.04
–0.15
–0.31
–0.53
–0.79
0.00
–0.04
–0.17
–0.34
–0.54
–0.78
0.00
–0.03
–0.09
–0.19
–0.38
–0.74
0.00
–0.04
–0.12
–0.29
–0.57
–0.94
0.00
–0.05
–0.17
–0.38
–0.67
–1.03
0.00
–0.06
–0.22
–0.47
–0.84
–1.24
0.00
–0.05
–0.20
–0.45
–0.77
–1.13
0.00
–0.02
–0.17
–0.43
–0.79
–1.19
30°
35°
40°
45°
50°
55°
–0.81
–0.98
–1.29
–1.77
–2.13
–2.35
–0.73
–1.10
–1.48
–1.76
–2.15
–2.73
–1.12
–1.40
–1.61
–2.00
–2.52
–2.91
–1.04
–1.39
–1.92
–2.45
–2.71
–3.18
–1.08
–1.53
–1.96
–2.31
–2.92
–3.53
–1.28
–1.79
–2.15
–2.70
–3.39
–3.82
–1.25
–1.55
–2.16
–2.88
–3.24
–3.91
–1.35
–1.79
–2.39
–2.92
–3.70
–4.55
–1.63
–2.18
–2.83
–3.32
–4.04
–4.75
–1.58
–2.29
–2.91
–3.42
–4.29
–4.86
–1.62
–2.33
–2.98
–3.76
–4.66
–5.40
60°
65°
70°
75°
80°
85°
–2.90
–3.57
–3.83
–4.25
–4.74
–4.89
–3.12
–3.48
–4.07
–4.35
–4.75
–5.45
–3.42
–4.12
–4.62
–5.22
–5.50
–5.65
–3.79
–4.10
–4.73
–5.36
–5.95
–6.54
–3.86
–4.66
–5.23
–5.80
–6.43
–6.78
–4.52
–4.85
–5.40
–6.18
–6.90
–7.82
–4.59
–5.26
–6.01
–6.56
–7.25
–7.77
–5.04
–5.93
–6.33
–7.08
–7.81
–8.83
–5.58
–6.18
–7.17
–7.97
–8.68
–9.15
–5.94
–6.84
–7.80
–8.37
–9.11
–10.15
–6.39
–7.19
–8.02
–9.08
–10.04
–10.84
90°
95°
100°
105°
110°
115°
–5.32
–5.69
–5.93
–6.28
–6.49
–6.78
–5.81
–5.99
–6.27
–6.77
–7.01
–7.22
–6.40
–6.98
–6.97
–7.36
–7.85
–7.94
–6.57
–7.27
–7.83
–7.75
–8.39
–8.61
–7.60
–7.73
–8.47
–8.74
–8.94
–9.60
–7.80
–8.56
–8.92
–9.58
–9.53
–10.15
–8.91
–8.91
–9.52
–10.15
–10.39
–10.60
–9.16
–10.08
–10.33
–10.85
–11.50
–11.49
–10.32
–10.90
–11.45
–11.84
–12.57
–12.80
–10.74
–11.72
–12.41
–12.69
–13.32
–13.81
–11.48
–12.42
–13.12
–13.76
–13.94
–14.94
120°
125°
130°
135°
140°
145°
–6.91
–6.91
–7.02
–6.87
–6.58
–6.54
–7.50
–7.43
–7.52
–7.50
–7.11
–6.95
–8.29
–8.26
–8.15
–8.32
–7.98
–7.63
–8.82
–9.06
–8.80
–8.95
–8.83
–8.32
–9.57
–10.01
–9.81
–9.76
–9.82
–9.31
–10.31
–10.52
–10.73
–10.40
–10.51
–10.14
–11.27
–11.10
–11.55
–11.28
–11.22
–10.94
–12.16
–12.26
–12.46
–12.48
–12.33
–12.05
–13.14
–13.67
–13.57
–13.76
–13.58
–13.42
–14.00
–14.59
–14.59
–14.76
–14.42
–14.53
–14.84
–15.36
–15.51
–15.65
–15.53
–15.26
150°
155°
160°
165°
170°
175°
–6.64
–6.60
–6.31
–5.89
–5.49
–5.24
–7.15
–7.24
–6.96
–6.47
–6.02
–5.74
–7.76
–7.96
–7.74
–7.23
–6.73
–6.41
–8.29
–8.54
–8.45
–7.95
–7.40
–7.02
–9.07
–9.27
–9.23
–8.74
–8.11
–7.68
–9.79
–9.91
–9.94
–9.46
–8.81
–8.33
–10.56
–10.68
–10.70
–10.18
–9.47
–8.95
–11.56
–11.72
–11.89
–11.34
–10.55
–9.98
–12.64
–12.70
–13.03
–12.55
–11.64
–10.99
–13.63
–13.38
–13.89
–13.59
–12.61
–11.85
–14.82
–14.18
–14.53
–14.58
–13.75
–13.02
180°
185°
190°
195°
200°
205°
–5.18
–5.33
–5.67
–6.10
–6.43
–6.60
–5.67
–5.83
–6.18
–6.59
–6.92
–7.13
–6.32
–6.46
–6.78
–7.19
–7.61
–7.82
–6.90
–7.03
–7.36
–7.86
–8.36
–8.46
–7.51
–7.62
–8.02
–8.65
–9.17
–9.11
–8.14
–8.29
–8.80
–9.50
–9.85
–9.71
–8.77
–9.00
–9.62
–10.28
–10.52
–10.48
–9.81
–10.10
–10.72
–11.30
–11.60
–11.56
–10.79
–11.04
–11.60
–12.22
–12.66
–12.42
–11.59
–11.77
–12.35
–13.19
–13.51
–13.24
–12.76
–13.09
–14.05
–15.07
–15.06
–15.06
210°
215°
220°
225°
230°
235°
–6.62
–6.52
–6.42
–6.58
–6.84
–6.79
–7.13
–6.96
–6.97
–7.19
–7.28
–7.21
–7.68
–7.53
–7.70
–7.90
–8.00
–7.94
–8.23
–8.24
–8.44
–8.58
–8.72
–8.56
–8.94
–9.03
–9.19
–9.48
–9.49
–9.35
–9.66
–9.69
–9.93
–10.20
–10.09
–10.11
–10.37
–10.44
–10.87
–10.94
–10.96
–10.88
–11.35
–11.71
–11.96
–12.19
–12.05
–12.04
–12.44
–12.84
–13.09
–13.36
–13.11
–13.33
–13.51
–13.75
–14.33
–14.27
–14.35
–14.25
–15.09
–15.65
–16.05
–15.97
–16.11
–15.75
240°
245°
250°
255°
260°
265°
–6.58
–6.54
–6.38
–6.02
–5.77
–5.54
–7.16
–7.07
–6.81
–6.47
–6.10
–5.75
–7.80
–7.73
–7.50
–7.05
–6.72
–6.67
–8.49
–8.41
–7.92
–7.57
–7.48
–7.04
–9.40
–9.05
–8.61
–8.42
–8.09
–7.59
–9.99
–9.58
–9.23
–9.04
–8.66
–8.25
–10.78
–10.25
–10.02
–9.79
–9.34
–8.62
–11.79
–11.25
–11.15
–10.71
–10.12
–9.84
–12.72
–12.55
–12.20
–11.76
–11.16
–10.76
–13.71
–13.52
–13.30
–12.59
–12.27
–11.64
–15.41
–15.09
–14.49
–14.07
–13.75
–13.00
270°
275°
280°
285°
290°
295°
–5.12
–4.82
–4.60
–4.14
–3.75
–3.40
–5.63
–5.30
–4.62
–4.25
–3.91
–3.41
–6.23
–5.50
–5.32
–5.01
–4.53
–4.10
–6.44
–6.31
–5.75
–5.24
–4.69
–3.96
–7.35
–6.58
–6.26
–5.74
–5.07
–4.73
–7.50
–7.47
–6.76
–5.92
–5.40
–4.64
–8.60
–7.65
–7.01
–6.54
–5.84
–5.28
–9.06
–8.66
–7.79
–6.97
–6.34
–5.88
–10.22
–9.12
–8.66
–7.95
–7.25
–6.19
–10.69
–10.24
–9.13
–8.55
–7.79
–7.01
–12.15
–11.35
–10.68
–9.55
–8.61
–7.89
300°
305°
310°
315°
320°
325°
–2.84
–2.37
–2.05
–1.63
–1.25
–1.02
–3.09
–2.63
–2.10
–1.80
–1.52
–1.08
–3.31
–2.83
–2.55
–1.98
–1.55
–1.40
–3.78
–3.22
–2.60
–2.43
–2.01
–1.39
–3.80
–3.43
–3.02
–2.29
–1.88
–1.57
–4.46
–3.77
–3.26
–2.74
–2.14
–1.73
–4.49
–3.91
–3.24
–2.83
–2.21
–1.62
–5.11
–4.50
–3.80
–2.97
–2.39
–1.84
–5.64
–4.83
–4.11
–3.41
–2.91
–2.23
–6.06
–4.98
–4.39
–3.55
–2.96
–2.42
–6.93
–6.00
–5.11
–4.27
–3.35
–2.73
330°
335°
340°
345°
350°
355°
–0.87
–0.66
–0.43
–0.21
–0.07
0.01
–0.68
–0.46
–0.34
–0.25
–0.15
–0.07
–1.20
–0.82
–0.46
–0.21
–0.07
–0.01
–0.98
–0.77
–0.58
–0.37
–0.18
–0.06
–1.15
–0.80
–0.53
–0.32
–0.15
–0.03
–1.28
–0.79
–0.43
–0.22
–0.10
–0.03
–1.24
–0.91
–0.57
–0.32
–0.16
–0.07
–1.43
–1.07
–0.68
–0.35
–0.14
–0.03
–1.69
–1.32
–0.93
–0.52
–0.21
–0.03
–1.70
–1.20
–0.86
–0.53
–0.25
–0.07
–1.98
–1.43
–1.01
–0.61
–0.29
–0.09
BE171211.book Page 69 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
69
Table A.13 Sensitivity variations of Microphone Type 4189 (only) at sound incidence angles within ±θ ° from the
reference direction.
–Nominal
Frequency
Exact
Frequency
Max Variation
± 30°
Max Variation Max Variation
± 90°
± 150°
500 Hz
630 Hz
501.187 Hz
630.957 Hz
0.01
0.00
0.06
0.08
0.08
0.09
800 Hz
1000 Hz
1250 Hz
794.328 Hz
1000 Hz
1258.93 Hz
0.01
0.06
0.05
0.10
0.17
0.23
0.13
0.20
0.27
1600 Hz
2000 Hz
2240 Hz
2500 Hz
1584.89 Hz
1995.26 Hz
2238.72 Hz
2511.89 Hz
0.06
0.05
0.05
0.11
0.34
0.43
0.42
0.47
0.40
0.54
0.58
0.69
2800 Hz
3150 Hz
3550 Hz
4000 Hz
2818.38 Hz
3162.28 Hz
3548.13 Hz
3981.07 Hz
0.16
0.15
0.15
0.23
0.62
0.80
0.97
1.13
0.87
1.06
1.25
1.45
4500 Hz
5000 Hz
5600 Hz
6300 Hz
4466.84 Hz
5011.87 Hz
5623.41 Hz
6309.57 Hz
0.33
0.26
0.35
0.31
1.47
1.92
2.07
2.35
1.79
2.29
2.46
2.97
7100 Hz
8000 Hz
8500 Hz
9000 Hz
7079.46 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
0.62
0.54
0.64
0.77
3.07
3.27
3.62
3.98
3.67
4.07
4.54
4.94
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
0.76
0.73
0.74
0.88
4.12
4.52
5.19
5.33
5.60
5.93
6.63
7.03
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
0.73
1.20
1.04
1.15
5.81
6.40
6.57
7.60
7.52
8.32
9.06
10.01
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
1.28
1.25
1.43
1.69
7.82
8.91
9.16
10.32
10.73
11.55
12.48
13.76
19000 Hz
20000 Hz
18836.5 Hz
19952.6 Hz
1.70
1.98
10.74
12.15
14.76
16.11
BE171211.book Page 70 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
70
Table A.14 Influence of Hand-held Analyzer body on directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in a plane parallel to the Hand-held Analyzer’s display, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1600 Hz
2000 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
–0.01
–0.02
–0.02
–0.03
–0.03
–0.03
0.02
0.01
0.01
0.00
0.03
0.06
0.01
0.00
0.01
–0.01
0.01
0.03
1000 Hz
0.00
0.01
0.02
0.04
0.02
0.03
1250 Hz
0.01
0.01
0.02
0.00
0.01
0.03
–0.03
–0.02
–0.01
–0.02
–0.02
–0.04
0.00
–0.01
–0.04
–0.10
–0.14
–0.21
2240 Hz
0.01
0.02
0.06
0.08
0.14
0.17
–0.01
–0.03
–0.07
–0.12
–0.16
–0.17
–0.03
–0.02
0.02
0.07
0.13
0.18
–0.01
–0.02
–0.06
–0.12
–0.21
–0.29
0.01
–0.01
–0.02
–0.01
0.06
0.18
30°
35°
40°
45°
50°
55°
–0.02
–0.02
–0.03
–0.05
–0.08
–0.11
0.08
0.10
0.12
0.16
0.18
0.21
0.04
0.05
0.08
0.12
0.18
0.22
0.02
0.01
0.00
–0.01
–0.02
–0.02
0.06
0.09
0.15
0.22
0.29
0.34
–0.09
–0.17
–0.27
–0.39
–0.50
–0.56
–0.26
–0.29
–0.25
–0.17
–0.06
0.00
0.16
0.10
–0.02
–0.16
–0.26
–0.22
–0.16
–0.06
0.06
0.15
0.14
–0.01
0.17
0.09
–0.03
–0.12
–0.07
0.08
–0.34
–0.30
–0.18
–0.08
–0.09
–0.19
0.30
0.33
0.26
0.11
0.06
0.17
60°
65°
70°
75°
80°
85°
–0.13
–0.13
–0.20
–0.21
–0.23
–0.27
0.20
0.18
0.19
0.15
0.10
0.08
0.27
0.32
0.38
0.41
0.42
0.42
–0.01
0.03
0.08
0.16
0.24
0.34
0.38
0.38
0.36
0.33
0.31
0.34
–0.54
–0.44
–0.29
–0.14
–0.05
–0.03
–0.04
–0.19
–0.39
–0.51
–0.43
–0.18
–0.07
0.08
0.08
–0.11
–0.37
–0.46
–0.22
–0.30
–0.15
0.03
–0.02
–0.31
0.16
0.06
–0.16
–0.26
–0.11
0.03
–0.25
–0.14
–0.05
–0.17
–0.44
–0.44
0.22
0.13
0.09
0.22
0.26
0.01
90°
95°
100°
105°
110°
115°
–0.30
–0.32
–0.35
–0.40
–0.42
–0.41
0.01
–0.04
–0.09
–0.15
–0.19
–0.24
0.38
0.33
0.26
0.17
0.09
0.01
0.40
0.43
0.41
0.34
0.22
0.06
0.42
0.54
0.67
0.76
0.78
0.71
–0.06
–0.09
–0.06
0.04
0.17
0.26
0.06
0.18
0.15
0.06
0.04
0.17
–0.26
0.09
0.33
0.33
0.21
0.16
–0.54
–0.36
0.08
0.38
0.37
0.21
–0.14
–0.47
–0.43
0.06
0.48
0.48
–0.26
–0.33
–0.65
–0.61
–0.07
0.37
–0.20
–0.06
0.00
–0.27
–0.23
0.39
120°
125°
130°
135°
140°
145°
–0.41
–0.40
–0.39
–0.36
–0.33
–0.32
–0.28
–0.30
–0.30
–0.30
–0.28
–0.25
–0.05
–0.09
–0.09
–0.08
–0.04
0.00
–0.09
–0.24
–0.33
–0.37
–0.37
–0.31
0.57
0.36
0.14
–0.04
–0.14
–0.18
0.26
0.14
–0.08
–0.34
–0.55
–0.66
0.34
0.40
0.28
0.01
–0.34
–0.62
0.27
0.45
0.50
0.31
–0.06
–0.45
0.17
0.33
0.48
0.43
0.10
–0.35
0.25
0.19
0.40
0.55
0.35
–0.14
0.32
0.06
0.02
0.24
0.26
–0.11
0.83
0.67
0.32
0.40
0.62
0.47
150°
155°
160°
165°
170°
175°
–0.24
–0.24
–0.20
–0.22
–0.19
–0.19
–0.24
–0.21
–0.18
–0.15
–0.15
–0.14
0.05
0.11
0.15
0.18
0.20
0.22
–0.23
–0.12
–0.04
0.04
0.11
0.14
–0.13
–0.04
0.06
0.15
0.23
0.27
–0.67
–0.58
–0.45
–0.33
–0.22
–0.16
–0.73
–0.66
–0.48
–0.28
–0.12
–0.02
–0.68
–0.68
–0.50
–0.27
–0.07
0.06
–0.69
–0.77
–0.61
–0.34
–0.08
0.07
–0.66
–0.89
–0.75
–0.43
–0.11
0.09
–0.72
–1.13
–1.12
–0.79
–0.42
–0.16
–0.14
–0.77
–0.96
–0.65
–0.18
0.14
180°
185°
190°
195°
200°
205°
–0.17
–0.17
–0.17
–0.20
–0.23
–0.27
–0.15
–0.15
–0.15
–0.18
–0.19
–0.21
0.21
0.21
0.20
0.16
0.13
0.08
0.14
0.13
0.08
0.03
–0.05
–0.15
0.29
0.26
0.21
0.12
0.01
–0.10
–0.15
–0.17
–0.25
–0.36
–0.49
–0.61
0.00
–0.05
–0.17
–0.35
–0.54
–0.70
0.08
0.03
–0.13
–0.34
–0.58
–0.73
0.12
0.04
–0.15
–0.41
–0.68
–0.80
0.14
0.04
–0.19
–0.52
–0.84
–0.90
–0.10
–0.21
–0.51
–0.90
–1.19
–1.11
0.24
0.09
–0.28
–0.75
–1.02
–0.74
210°
215°
220°
225°
230°
235°
–0.28
–0.32
–0.33
–0.36
–0.39
–0.37
–0.24
–0.30
–0.30
–0.33
–0.32
–0.33
0.04
–0.03
–0.06
–0.10
–0.11
–0.10
–0.25
–0.31
–0.39
–0.40
–0.35
–0.26
–0.19
–0.23
–0.19
–0.07
0.13
0.36
–0.68
–0.65
–0.50
–0.27
–0.02
0.18
–0.73
–0.58
–0.27
0.08
0.34
0.42
–0.68
–0.41
0.01
0.37
0.53
0.45
–0.67
–0.26
0.21
0.50
0.51
0.31
–0.59
–0.03
0.44
0.59
0.40
0.18
–0.59
0.03
0.34
0.23
–0.02
0.04
–0.06
0.53
0.61
0.35
0.32
0.67
240°
245°
250°
255°
260°
265°
–0.39
–0.42
–0.40
–0.35
–0.33
–0.30
–0.30
–0.24
–0.20
–0.18
–0.12
–0.05
–0.07
0.00
0.07
0.14
0.22
0.30
–0.13
0.03
0.17
0.30
0.37
0.39
0.59
0.74
0.80
0.78
0.69
0.55
0.27
0.25
0.12
–0.02
–0.12
–0.13
0.33
0.16
0.03
0.03
0.11
0.13
0.25
0.12
0.16
0.27
0.26
0.05
0.16
0.21
0.36
0.33
0.04
–0.38
0.24
0.45
0.41
0.00
–0.44
–0.45
0.31
0.31
–0.16
–0.64
–0.60
–0.33
0.77
0.28
–0.30
–0.28
–0.03
–0.14
270°
275°
280°
285°
290°
295°
–0.24
–0.25
–0.19
–0.15
–0.13
–0.12
–0.01
0.05
0.08
0.11
0.13
0.16
0.34
0.37
0.37
0.35
0.32
0.27
0.37
0.30
0.20
0.12
0.05
0.00
0.41
0.31
0.26
0.27
0.30
0.31
–0.09
–0.04
–0.04
–0.12
–0.25
–0.40
0.02
–0.21
–0.43
–0.47
–0.36
–0.19
–0.27
–0.46
–0.39
–0.16
0.01
0.00
–0.52
–0.30
–0.06
–0.01
–0.16
–0.28
–0.13
0.00
–0.15
–0.27
–0.15
0.08
–0.33
–0.51
–0.45
–0.18
–0.04
–0.12
–0.25
–0.01
0.21
0.17
0.08
0.16
300°
305°
310°
315°
320°
325°
–0.09
–0.08
–0.09
–0.05
–0.02
–0.04
0.16
0.15
0.16
0.14
0.10
0.07
0.23
0.17
0.13
0.09
0.05
0.02
–0.05
–0.05
–0.05
–0.04
–0.04
–0.02
0.32
0.30
0.25
0.19
0.14
0.08
–0.49
–0.52
–0.47
–0.37
–0.25
–0.14
–0.07
–0.04
–0.10
–0.20
–0.27
–0.30
–0.12
–0.23
–0.24
–0.16
–0.02
0.08
–0.20
–0.01
0.12
0.14
0.06
–0.03
0.16
0.09
–0.03
–0.03
0.06
0.16
–0.21
–0.16
–0.07
–0.07
–0.17
–0.29
0.21
0.12
0.00
0.03
0.18
0.28
330°
335°
340°
345°
350°
355°
–0.05
0.00
–0.03
–0.01
–0.02
0.00
0.06
0.01
0.02
0.01
0.00
–0.01
0.00
–0.01
0.00
–0.01
–0.01
–0.02
–0.02
–0.02
–0.03
–0.03
–0.02
–0.02
0.04
0.02
0.00
–0.01
–0.01
–0.01
–0.07
–0.02
0.01
0.02
0.02
0.02
–0.27
–0.20
–0.14
–0.09
–0.04
–0.01
0.13
0.13
0.10
0.07
0.03
0.00
–0.11
–0.13
–0.10
–0.06
–0.02
0.01
0.22
0.22
0.18
0.12
0.08
0.05
–0.35
–0.31
–0.22
–0.13
–0.06
–0.01
0.27
0.17
0.08
0.02
–0.01
–0.01
BE171211.book Page 71 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
71
Table A.15 Influence of Hand-held Analyzer body on directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in a plane parallel to the Hand-held Analyzer’s display, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
10000 Hz 10600 Hz
0°
5°
10°
15°
20°
25°
–0.01
0.02
0.08
0.16
0.29
0.37
0.00
0.02
0.11
0.19
0.28
0.26
0.00
0.02
0.09
0.15
0.20
0.18
0.00
–0.05
–0.04
–0.05
–0.02
0.06
0.02
–0.06
–0.16
–0.32
–0.49
–0.47
–0.02
–0.05
0.00
0.06
0.14
0.09
–0.01
–0.07
–0.12
–0.18
–0.08
0.14
0.02
–0.02
–0.02
–0.05
0.01
0.10
0.03
–0.01
–0.03
–0.06
0.06
0.23
0.01
–0.06
–0.14
–0.23
–0.21
–0.29
–0.01
–0.04
–0.07
–0.11
–0.09
–0.02
–0.01
–0.03
–0.06
–0.15
–0.02
0.29
30°
35°
40°
45°
50°
55°
0.30
0.13
0.03
0.08
0.22
0.19
0.10
–0.06
–0.01
0.14
0.14
0.01
0.07
0.04
0.25
0.50
0.50
0.47
0.10
0.05
–0.05
0.07
0.14
–0.03
–0.16
0.06
–0.24
–0.53
–0.40
–0.57
0.06
0.40
0.42
–0.15
0.23
0.17
0.08
–0.20
–0.06
–0.07
–0.07
0.31
0.07
0.15
0.23
0.01
0.14
–0.12
0.17
0.12
0.19
0.23
0.24
0.33
–0.54
–0.37
–0.22
–0.19
–0.24
–0.23
–0.04
–0.12
–0.34
–0.31
–0.10
–0.07
0.31
0.26
0.33
0.14
0.00
0.30
60°
65°
70°
75°
80°
85°
0.05
0.10
0.22
0.13
0.06
0.15
0.02
0.09
0.11
0.14
0.09
0.09
0.59
0.53
0.29
0.35
0.62
0.68
0.08
0.17
0.33
0.56
0.09
–0.01
–0.39
–0.32
–0.26
–0.04
0.14
–0.02
–0.17
–0.06
–0.19
0.01
0.23
0.15
–0.09
0.12
–0.31
–0.08
–0.03
–0.03
0.32
0.00
0.08
–0.28
–0.08
0.11
0.05
0.29
0.24
0.09
–0.42
–0.08
0.01
–0.28
–0.11
0.11
–0.18
–0.72
–0.41
–0.12
–0.11
–0.23
0.12
–0.27
0.53
0.16
0.36
0.47
0.05
0.30
90°
95°
100°
105°
110°
115°
–0.01
–0.33
–0.22
–0.13
–0.36
–0.19
–0.03
–0.19
–0.39
–0.46
–0.28
–0.41
0.67
0.58
0.17
–0.12
–0.04
0.09
0.16
0.48
0.66
0.05
–0.64
–0.49
–0.55
–0.01
–0.08
0.30
–0.77
–1.03
0.54
0.04
0.44
0.21
0.59
–0.16
0.08
0.11
–0.02
0.29
0.20
0.26
0.35
0.20
0.03
0.18
0.81
0.09
0.20
0.39
0.14
–0.03
0.53
0.44
–0.35
–0.24
0.02
–0.22
0.05
0.50
–0.64
–0.29
–0.03
0.19
–0.19
0.36
–0.03
0.22
0.47
0.36
0.28
0.89
120°
125°
130°
135°
140°
145°
0.51
0.88
0.56
0.23
0.36
0.47
–0.14
0.69
0.81
0.27
0.10
0.34
0.11
0.63
1.32
1.18
0.62
0.61
–0.09
0.27
0.69
0.94
0.64
0.36
–1.02
–0.32
0.31
0.63
0.56
–0.37
–0.71
–0.70
0.35
1.03
1.41
0.91
–0.97
–0.99
–0.70
0.70
0.97
0.91
–0.26
–0.70
–1.05
0.85
1.00
1.24
0.07
–1.21
–0.92
0.23
1.17
1.07
–0.26
–1.31
–1.07
–0.60
1.03
0.79
0.19
–0.79
–1.32
–0.85
0.91
0.75
1.20
0.02
–1.21
–0.27
1.41
1.32
150°
155°
160°
165°
170°
175°
0.05
–0.70
–1.13
–0.90
–0.38
0.01
0.11
–0.69
–1.32
–1.15
–0.54
–0.07
0.67
0.02
–0.83
–0.86
–0.17
0.42
0.44
0.06
–0.93
–1.44
–0.87
–0.13
–0.41
–0.30
–1.10
–1.75
–1.19
–0.40
0.05
0.03
–0.68
–1.73
–1.26
–0.31
–0.15
–0.12
–0.56
–1.93
–1.81
–0.68
0.07
–0.09
–0.20
–1.69
–1.86
–0.58
0.33
–0.47
–0.29
–1.59
–2.03
–0.72
0.46
–0.88
–0.58
–1.71
–2.49
–1.14
0.75
–0.78
–0.45
–1.57
–2.81
–1.36
1.33
0.01
–0.09
–0.66
–2.33
–1.20
180°
185°
190°
195°
200°
205°
0.13
–0.04
–0.47
–0.97
–1.11
–0.62
0.05
–0.18
–0.75
–1.36
–1.35
–0.54
0.61
0.32
–0.36
–0.93
–0.64
0.27
0.15
–0.16
–0.92
–1.44
–0.92
–0.11
–0.20
–0.76
–1.83
–2.21
–1.18
–0.30
–0.04
–0.65
–1.68
–1.59
–0.26
0.19
–0.27
–0.95
–2.12
–1.72
–0.42
–0.35
–0.12
–0.93
–2.24
–1.45
–0.17
–0.22
–0.20
–1.12
–2.39
–1.39
–0.28
–0.51
–0.55
–1.61
–2.82
–1.57
–0.53
–0.78
–0.69
–1.87
–3.12
–1.28
–0.58
–0.39
–0.48
–1.67
–2.43
–0.43
–0.45
0.39
210°
215°
220°
225°
230°
235°
0.12
0.47
0.31
0.22
0.61
0.81
0.25
0.32
–0.02
0.28
0.81
0.50
0.72
0.52
0.64
1.19
1.14
0.56
–0.04
–0.17
0.45
0.94
0.77
0.36
–0.30
0.13
0.77
0.43
0.12
–0.78
–0.04
0.98
1.20
1.07
0.11
–0.93
0.08
0.90
0.97
0.60
–1.10
–0.92
0.21
1.29
0.97
0.46
–1.28
–1.04
0.60
0.96
1.24
–0.50
–0.96
–1.47
0.68
0.70
0.97
–1.10
–1.39
–1.02
0.63
0.93
0.56
–1.19
–1.88
–0.88
0.99
1.47
0.68
–0.79
–1.68
0.14
240°
245°
250°
255°
260°
265°
0.36
–0.24
–0.31
–0.19
–0.29
–0.31
–0.23
–0.34
–0.34
–0.59
–0.44
–0.23
0.23
0.00
–0.15
–0.17
0.13
0.63
–0.16
–0.68
–1.02
–0.07
0.69
0.50
–1.41
–1.14
–0.30
0.19
–0.47
–0.33
–0.74
–0.04
0.38
0.31
0.21
0.18
–0.82
0.25
0.30
0.02
0.06
0.04
–0.40
0.06
0.42
–0.01
–0.03
0.04
–0.09
0.48
0.32
–0.29
0.08
0.25
–0.28
0.36
–0.22
–0.15
–0.12
–0.35
0.35
–0.14
–0.57
–0.02
–0.26
–0.49
0.77
0.36
0.33
0.02
0.15
–0.07
270°
275°
280°
285°
290°
295°
–0.04
0.12
0.08
0.14
0.18
0.05
–0.03
0.13
0.10
0.07
0.01
0.02
0.68
0.59
0.39
0.26
0.34
0.58
0.00
–0.37
0.08
0.57
0.28
0.00
–0.41
0.16
–0.24
–0.35
–0.36
–0.37
0.34
0.19
0.18
–0.10
–0.19
–0.04
0.08
–0.13
–0.16
0.00
–0.31
–0.09
0.01
–0.11
–0.19
–0.49
–0.22
0.04
–0.06
–0.18
–0.53
–0.12
0.29
0.25
–0.41
–0.83
–0.39
0.16
–0.12
–0.32
–0.93
–0.45
0.05
–0.37
–0.27
–0.30
–0.04
0.11
–0.09
0.36
0.20
0.10
300°
305°
310°
315°
320°
325°
–0.02
0.12
0.19
0.10
0.08
0.18
0.01
0.06
0.21
0.17
–0.04
–0.11
0.58
0.37
0.39
0.42
0.21
0.11
–0.01
0.05
0.18
–0.08
–0.37
–0.16
–0.52
–0.63
–0.36
–0.60
–0.57
–0.31
–0.18
0.11
0.02
–0.10
0.49
0.44
–0.02
0.34
0.00
–0.10
–0.15
–0.17
0.20
–0.13
–0.11
–0.13
0.16
0.09
0.01
0.07
0.25
0.22
0.13
0.02
–0.13
–0.14
–0.33
–0.32
–0.40
–0.43
–0.48
–0.29
–0.33
–0.42
–0.26
–0.17
0.28
0.11
0.06
0.14
0.27
0.14
330°
335°
340°
345°
350°
355°
0.32
0.36
0.30
0.21
0.12
0.07
0.00
0.14
0.19
0.14
0.07
0.01
0.16
0.23
0.22
0.16
0.08
0.05
0.17
0.32
0.30
0.22
0.12
0.04
–0.36
–0.43
–0.27
–0.08
0.03
0.04
0.16
0.15
0.15
0.09
0.03
0.01
0.10
0.14
0.03
0.00
0.04
0.07
0.06
0.04
–0.11
–0.16
–0.13
–0.08
0.02
0.09
0.00
–0.09
–0.07
–0.04
–0.41
–0.22
–0.17
–0.15
–0.06
0.00
–0.10
–0.11
–0.19
–0.17
–0.10
–0.06
0.27
0.22
–0.01
–0.09
–0.03
0.03
BE171211.book Page 72 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
72
Table A.16 Influence of Hand-held Analyzer body on directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in a plane parallel to the Hand-held Analyzer’s display, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.01
–0.01
–0.04
–0.09
–0.10
0.05
0.00
–0.04
–0.05
–0.09
–0.24
–0.38
0.01
–0.02
–0.02
0.12
0.33
0.38
0.01
–0.01
–0.03
–0.17
–0.28
–0.23
–0.02
–0.04
0.05
0.28
0.45
0.49
–0.06
–0.04
–0.03
–0.21
–0.60
–0.38
–0.06
–0.10
–0.10
–0.14
0.01
–0.10
–0.16
–0.36
–0.29
–0.03
0.02
–0.11
–0.05
–0.11
0.08
0.06
0.34
0.34
0.03
0.01
–0.01
0.14
–0.04
–0.17
0.08
–0.03
0.04
0.12
0.23
0.14
30°
35°
40°
45°
50°
55°
0.04
0.01
0.20
0.22
0.12
0.00
–0.35
–0.44
–0.13
–0.17
–0.07
0.02
0.47
0.25
0.06
–0.06
0.41
0.38
–0.41
–0.26
–0.15
–0.14
–0.45
–0.28
0.56
0.36
0.31
0.34
0.25
0.14
–0.26
0.21
0.05
–0.09
0.14
0.05
–0.25
–0.59
–0.35
–0.06
–0.09
–0.26
–0.11
–0.05
–0.43
–0.42
–0.12
0.21
0.37
0.69
0.52
0.28
0.29
0.40
–0.23
0.00
0.03
–0.03
–0.03
–0.51
0.04
0.06
0.06
0.21
0.44
0.18
60°
65°
70°
75°
80°
85°
–0.08
0.33
0.12
0.31
0.70
0.12
–0.13
–0.50
–0.12
–0.21
–0.25
0.42
0.15
0.37
0.39
0.57
0.33
0.07
–0.06
–0.53
–0.55
–0.25
–0.16
–0.22
0.13
0.73
0.40
0.08
0.46
0.40
–0.12
–0.31
0.07
–0.07
–0.54
0.20
–0.17
–0.35
–0.36
0.14
–0.32
–0.68
–0.61
0.18
–0.55
–0.51
–0.01
–0.25
0.76
0.32
0.78
0.71
0.67
0.55
0.11
0.20
0.03
–0.10
–0.43
–0.07
0.04
0.30
0.24
0.20
0.08
–0.07
90°
95°
100°
105°
110°
115°
0.09
–0.41
0.11
0.33
0.15
0.32
0.14
–0.27
–0.27
0.15
–0.32
–0.39
0.55
0.39
–0.44
0.30
0.92
0.43
–0.19
0.07
–0.27
–0.94
0.07
–0.39
0.26
0.25
0.70
–0.28
–0.29
1.00
–0.03
–0.14
–0.17
0.23
–0.43
0.23
0.53
–0.16
–0.14
0.08
–0.55
–0.85
–0.70
0.11
–0.85
–0.59
0.40
–0.73
0.65
0.68
0.66
0.98
0.37
0.86
–0.30
–0.08
–0.06
–0.25
–0.29
–0.07
0.14
0.02
–0.46
0.62
–0.28
0.57
120°
125°
130°
135°
140°
145°
0.77
0.45
–0.99
–0.58
0.78
1.63
0.86
0.79
–1.01
–1.34
–0.04
1.58
1.05
0.83
–1.17
–1.54
0.33
1.92
–0.50
0.22
–0.49
–1.58
–0.34
1.08
0.83
1.92
0.88
–1.33
–0.23
1.53
0.11
0.63
–0.13
–2.84
–1.36
1.11
–0.13
0.85
1.14
–1.34
–1.02
0.86
–0.50
–0.31
1.19
–0.68
–0.68
1.64
0.95
1.28
2.51
0.28
–2.09
1.44
–0.52
–0.88
1.18
1.04
–3.39
0.26
0.38
–0.01
1.04
0.96
–2.55
0.77
150°
155°
160°
165°
170°
175°
0.87
0.20
–0.54
–0.69
–2.44
–1.50
0.45
0.15
–0.92
–0.64
–2.74
–1.99
0.71
0.74
–0.98
–0.34
–2.10
–1.78
0.65
–0.04
–1.42
–0.99
–2.74
–2.35
1.66
0.87
–0.90
–0.38
–2.10
–2.26
1.57
–0.16
–0.71
–1.19
–2.40
–3.04
1.69
–0.29
–0.45
–1.42
–2.21
–3.73
1.50
–0.30
0.38
–0.90
–1.32
–3.47
2.07
0.70
0.80
–0.68
–0.85
–2.92
2.00
1.07
–0.12
–1.78
–1.18
–4.81
2.58
1.43
–0.30
–1.52
–0.07
–3.82
180°
185°
190°
195°
200°
205°
–0.75
–2.03
–2.36
–0.68
–0.84
0.26
–1.16
–2.69
–2.67
–0.86
–1.23
0.22
–0.92
–2.39
–2.16
–0.76
–1.15
0.47
–1.50
–3.30
–2.89
–1.43
–1.30
–0.35
–1.24
–3.17
–1.76
–0.97
–0.49
0.50
–1.91
–3.80
–2.27
–1.69
–0.40
–0.49
–2.38
–4.03
–1.77
–1.54
–0.28
0.02
–2.70
–2.38
–0.92
–0.75
–0.12
1.40
–2.94
–3.51
–0.30
–0.73
0.05
2.18
–3.08
–4.16
–1.55
–1.79
–0.83
0.72
–3.57
–3.39
–0.75
–0.51
–0.43
1.97
210°
215°
220°
225°
230°
235°
0.60
1.61
–0.33
–1.54
–1.32
0.51
0.24
1.20
–0.80
–2.22
–1.47
0.41
0.90
1.15
–0.53
–2.02
–0.50
0.33
0.70
0.27
–1.64
–2.11
0.00
0.05
1.77
0.79
–1.41
–1.84
0.48
1.00
1.21
0.34
–1.50
–1.93
0.06
0.39
1.30
–0.09
–1.68
–1.12
0.78
0.28
1.41
–0.12
–2.68
–0.13
1.22
0.51
2.66
0.24
–1.64
1.67
1.74
0.35
1.31
–0.72
–2.40
1.03
0.61
–0.37
1.94
–0.44
–0.82
2.31
1.67
–0.01
240°
245°
250°
255°
260°
265°
0.37
–0.25
–0.26
–0.03
–0.13
–0.52
0.42
–0.49
–0.55
–0.08
–0.89
–0.72
–0.29
–0.37
0.30
–0.27
–0.68
–0.01
–0.80
–0.36
–0.30
–1.45
–0.68
–0.19
0.70
0.55
–0.47
–0.24
0.60
0.28
0.08
–0.10
–0.59
0.01
–0.20
–0.37
–0.25
–0.82
–0.29
0.12
0.15
–0.24
0.24
–0.17
0.53
0.22
0.20
0.85
–0.04
0.44
0.57
0.22
0.73
0.23
–0.77
–0.54
–0.44
–0.54
–0.53
–0.47
0.67
0.21
–0.02
0.69
0.38
0.43
270°
275°
280°
285°
290°
295°
–0.47
–0.15
0.37
0.00
–0.01
–0.02
–0.13
0.20
–0.47
–0.47
–0.44
–0.62
0.34
–0.21
–0.01
0.29
0.23
0.17
–0.57
–0.61
–0.34
–0.45
–0.74
–0.71
0.19
0.35
0.28
–0.03
0.38
0.86
–0.14
0.04
–0.34
–0.05
0.21
–0.52
0.28
–0.50
–0.25
0.22
–0.36
–0.12
–0.18
0.43
0.48
–0.50
–0.46
0.07
0.31
0.52
0.49
0.51
0.89
0.38
–0.72
–0.19
–0.76
–0.25
–0.32
0.12
0.44
–0.02
0.36
0.01
0.34
0.36
300°
305°
310°
315°
320°
325°
–0.31
–0.08
–0.03
–0.12
0.14
–0.10
–0.35
–0.18
–0.19
–0.29
–0.21
–0.50
–0.12
0.19
0.27
–0.16
–0.12
0.17
–0.10
–0.39
–0.60
–0.31
–0.19
–0.26
–0.01
0.01
0.35
0.32
0.21
0.33
–0.10
0.11
0.13
–0.02
0.14
0.19
–0.09
–0.13
–0.06
0.00
–0.17
–0.38
–0.09
0.17
0.12
–0.34
–0.22
–0.18
0.87
0.43
0.38
0.64
0.85
0.77
–0.28
–0.57
–0.29
–0.12
–0.21
–0.16
0.08
0.19
0.30
–0.07
–0.04
0.08
330°
335°
340°
345°
350°
355°
0.00
–0.04
–0.18
–0.14
–0.07
–0.06
–0.43
–0.45
–0.36
–0.09
0.05
0.06
0.40
0.41
0.29
0.07
–0.05
–0.06
–0.55
–0.28
–0.27
–0.16
–0.01
0.00
0.60
0.44
0.44
0.27
0.06
–0.01
–0.12
–0.27
–0.44
–0.08
0.10
0.06
–0.20
–0.02
0.07
–0.01
0.05
0.12
–0.04
0.03
–0.09
–0.12
–0.04
–0.18
0.80
0.66
0.49
0.37
0.10
0.00
–0.32
–0.25
–0.12
0.05
–0.11
–0.02
0.00
–0.07
0.13
0.02
0.04
–0.05
BE171211.book Page 73 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
73
Table A.17 Influence of Hand-held Analyzer body on directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to the display, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1000 Hz
0°
5°
10°
15°
20°
25°
0.02
0.00
–0.01
–0.01
–0.01
–0.03
0.00
–0.01
0.01
0.02
0.03
0.02
0.00
–0.01
0.00
0.00
–0.01
–0.02
0.00
0.02
0.02
0.03
0.01
0.00
30°
35°
40°
45°
50°
55°
–0.01
–0.01
–0.05
–0.02
–0.05
–0.07
0.06
0.06
0.12
0.14
0.17
0.18
0.00
0.00
0.04
0.08
0.12
0.18
60°
65°
70°
75°
80°
85°
–0.12
–0.10
–0.12
–0.15
–0.18
–0.21
0.19
0.19
0.18
0.15
0.14
0.09
90°
95°
100°
105°
110°
115°
–0.23
–0.31
–0.32
–0.33
–0.36
–0.41
120°
125°
130°
135°
140°
145°
1250 Hz
1600 Hz
2000 Hz
2240 Hz
2500 Hz
0.00
0.02
0.01
0.01
0.03
0.03
0.00
0.01
0.01
0.00
–0.01
–0.06
0.00
–0.01
–0.02
–0.06
–0.11
–0.20
0.00
0.01
0.04
0.07
0.13
0.17
0.00
–0.01
–0.04
–0.11
–0.18
–0.26
0.00
–0.03
–0.04
–0.07
–0.08
–0.10
0.07
0.10
0.17
0.24
0.30
0.34
–0.10
–0.21
–0.30
–0.42
–0.53
–0.58
–0.26
–0.30
–0.28
–0.19
–0.09
–0.01
0.20
0.16
0.06
–0.06
–0.17
–0.16
0.24
0.31
0.36
0.40
0.43
0.42
–0.09
–0.07
0.00
0.10
0.20
0.32
0.34
0.32
0.27
0.23
0.22
0.27
–0.55
–0.44
–0.28
–0.15
–0.09
–0.11
–0.04
–0.18
–0.39
–0.54
–0.49
–0.29
0.03
–0.01
–0.08
–0.14
–0.20
–0.22
0.39
0.34
0.27
0.19
0.10
0.02
0.39
0.42
0.41
0.33
0.22
0.06
0.39
0.55
0.72
0.83
0.85
0.76
–0.17
–0.21
–0.13
0.04
0.23
0.36
–0.39
–0.37
–0.39
–0.38
–0.32
–0.32
–0.26
–0.29
–0.30
–0.28
–0.28
–0.25
–0.04
–0.09
–0.10
–0.08
–0.05
–0.01
–0.10
–0.25
–0.34
–0.39
–0.39
–0.32
0.59
0.35
0.11
–0.09
–0.20
–0.22
150°
155°
160°
165°
170°
175°
–0.27
–0.25
–0.23
–0.20
–0.21
–0.17
–0.23
–0.20
–0.16
–0.13
–0.12
–0.12
0.04
0.10
0.15
0.19
0.21
0.23
–0.24
–0.13
–0.05
0.02
0.10
0.13
180°
185°
190°
195°
200°
205°
–0.17
–0.18
–0.20
–0.23
–0.23
–0.26
–0.11
–0.11
–0.12
–0.12
–0.16
–0.18
0.24
0.23
0.22
0.19
0.15
0.11
210°
215°
220°
225°
230°
235°
–0.29
–0.31
–0.34
–0.39
–0.39
–0.42
–0.20
–0.23
–0.26
–0.27
–0.28
–0.27
240°
245°
250°
255°
260°
265°
–0.42
–0.42
–0.40
–0.38
–0.35
–0.33
270°
275°
280°
285°
290°
295°
2800 Hz
3150 Hz
3550 Hz
0.00
0.02
0.08
0.13
0.21
0.25
0.00
–0.02
–0.05
–0.13
–0.22
–0.31
0.00
0.01
0.02
0.03
0.08
0.16
–0.26
–0.18
–0.03
0.13
0.18
0.04
0.26
0.13
–0.06
–0.25
–0.26
–0.02
–0.32
–0.24
–0.04
0.12
0.08
–0.21
0.26
0.23
0.09
–0.11
–0.14
0.13
–0.04
0.10
0.09
–0.09
–0.36
–0.47
–0.17
–0.26
–0.10
0.08
0.01
–0.32
0.24
0.24
–0.05
–0.23
0.00
0.20
–0.51
–0.41
–0.03
0.03
–0.31
–0.37
0.35
0.18
–0.22
–0.13
0.29
0.16
–0.10
–0.04
–0.09
–0.11
0.02
0.27
–0.29
0.00
0.14
0.07
–0.01
0.15
–0.58
–0.45
–0.08
0.12
0.03
–0.07
–0.09
–0.60
–0.56
–0.02
0.25
0.06
–0.04
–0.11
–0.72
–0.87
–0.24
0.13
–0.21
0.14
0.26
–0.43
–0.65
0.12
0.36
0.23
–0.03
–0.34
–0.59
–0.73
0.52
0.60
0.45
0.08
–0.35
–0.69
0.50
0.77
0.76
0.46
–0.04
–0.52
0.16
0.59
0.85
0.73
0.23
–0.43
–0.05
0.34
0.87
1.00
0.61
–0.13
–0.11
–0.21
0.33
0.88
0.83
0.12
0.44
0.09
0.18
0.95
1.33
0.84
–0.16
–0.07
0.05
0.15
0.23
0.29
–0.73
–0.64
–0.49
–0.34
–0.23
–0.15
–0.83
–0.74
–0.55
–0.33
–0.15
–0.04
–0.79
–0.76
–0.55
–0.29
–0.06
0.08
–0.91
–1.00
–0.76
–0.43
–0.14
0.04
–0.85
–1.13
–0.94
–0.54
–0.17
0.08
–0.90
–1.52
–1.42
–0.91
–0.42
–0.10
–0.29
–1.27
–1.42
–0.89
–0.29
0.10
0.14
0.13
0.11
0.05
–0.02
–0.12
0.31
0.30
0.25
0.17
0.06
–0.06
–0.12
–0.14
–0.22
–0.34
–0.49
–0.65
0.00
–0.04
–0.16
–0.35
–0.57
–0.79
0.12
0.08
–0.07
–0.30
–0.57
–0.80
0.10
0.04
–0.15
–0.45
–0.78
–1.01
0.16
0.08
–0.16
–0.54
–0.96
–1.17
0.00
–0.10
–0.41
–0.89
–1.39
–1.51
0.23
0.11
–0.29
–0.90
–1.43
–1.27
0.07
0.01
–0.04
–0.07
–0.09
–0.08
–0.23
–0.33
–0.39
–0.42
–0.38
–0.27
–0.17
–0.23
–0.22
–0.12
0.08
0.34
–0.77
–0.78
–0.64
–0.38
–0.04
0.25
–0.89
–0.76
–0.40
0.07
0.48
0.69
–0.83
–0.54
–0.01
0.55
0.89
0.90
–0.93
–0.43
0.26
0.81
0.97
0.72
–0.88
–0.11
0.72
1.16
1.02
0.46
–0.90
0.13
0.92
1.04
0.49
–0.14
–0.22
0.93
1.46
1.12
0.33
0.12
–0.26
–0.23
–0.19
–0.18
–0.09
–0.01
–0.04
0.02
0.10
0.17
0.28
0.37
–0.14
0.04
0.21
0.36
0.43
0.47
0.60
0.80
0.92
0.92
0.83
0.67
0.43
0.46
0.33
0.12
–0.09
–0.20
0.64
0.39
0.09
–0.09
–0.09
0.00
0.61
0.21
0.02
0.09
0.19
0.08
0.26
–0.02
0.05
0.14
–0.03
–0.40
0.01
0.08
0.24
0.00
–0.49
–0.54
–0.15
0.10
–0.19
–0.80
–0.69
–0.09
0.39
0.09
–0.61
–0.40
0.26
0.15
–0.29
–0.25
–0.23
–0.19
–0.18
–0.12
0.04
0.07
0.13
0.15
0.20
0.18
0.43
0.46
0.47
0.45
0.42
0.36
0.45
0.38
0.28
0.18
0.08
0.00
0.49
0.34
0.25
0.24
0.27
0.31
–0.20
–0.14
–0.10
–0.12
–0.22
–0.36
–0.02
–0.19
–0.40
–0.49
–0.40
–0.20
–0.23
–0.45
–0.37
–0.08
0.15
0.17
–0.54
–0.28
0.05
0.11
–0.08
–0.26
–0.07
0.20
0.02
–0.22
–0.06
0.26
0.00
–0.35
–0.31
0.08
0.11
–0.19
–0.16
0.19
0.39
0.07
–0.04
0.18
300°
305°
310°
315°
320°
325°
–0.13
–0.07
–0.09
–0.05
–0.07
–0.07
0.21
0.19
0.19
0.16
0.15
0.12
0.32
0.25
0.20
0.14
0.10
0.07
–0.05
–0.08
–0.07
–0.05
–0.05
–0.02
0.33
0.34
0.30
0.26
0.20
0.14
–0.46
–0.51
–0.47
–0.38
–0.27
–0.16
–0.04
0.00
–0.04
–0.15
–0.24
–0.28
0.03
–0.14
–0.18
–0.09
0.05
0.16
–0.19
0.02
0.20
0.20
0.08
–0.05
0.34
0.14
–0.05
–0.07
0.04
0.17
–0.32
–0.19
–0.02
–0.03
–0.16
–0.28
0.23
0.02
–0.11
0.02
0.25
0.37
330°
335°
340°
345°
350°
355°
–0.03
–0.04
–0.04
–0.03
–0.01
–0.04
0.08
0.07
0.06
0.03
0.04
0.02
0.04
0.03
0.02
0.02
0.02
0.00
–0.02
–0.02
–0.02
–0.01
–0.02
–0.01
0.10
0.05
0.03
0.01
0.01
0.00
–0.09
–0.03
0.00
0.01
0.02
0.01
–0.26
–0.21
–0.14
–0.09
–0.04
–0.02
0.20
0.20
0.15
0.10
0.05
0.02
–0.13
–0.15
–0.11
–0.06
–0.01
0.01
0.22
0.20
0.15
0.09
0.05
0.02
–0.31
–0.25
–0.16
–0.08
–0.03
0.00
0.34
0.20
0.09
0.01
–0.01
–0.01
BE171211.book Page 74 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
74
Table A.18 Influence of Hand-held Analyzer body on directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to the display, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
10000 Hz 10600 Hz
0°
5°
10°
15°
20°
25°
0.00
0.01
0.10
0.19
0.29
0.35
–0.01
0.03
0.13
0.22
0.26
0.16
0.00
0.04
0.11
0.17
0.22
0.14
0.00
0.00
0.12
0.31
0.51
0.58
0.00
–0.02
–0.05
–0.13
–0.25
–0.31
–0.01
0.01
0.08
0.19
0.30
0.28
0.00
–0.03
–0.01
–0.02
–0.07
–0.08
0.00
–0.02
–0.02
–0.05
–0.13
–0.19
0.00
0.02
0.02
0.00
0.06
0.19
0.00
–0.08
–0.19
–0.30
–0.23
–0.13
0.00
–0.02
–0.12
–0.26
–0.16
0.07
0.01
–0.06
–0.16
–0.27
–0.17
0.09
30°
35°
40°
45°
50°
55°
0.28
0.07
–0.04
0.12
0.34
0.23
–0.11
–0.31
–0.09
0.29
0.23
–0.13
–0.01
0.04
0.47
0.68
0.29
0.29
0.33
–0.03
0.07
0.23
–0.13
0.10
–0.28
–0.44
–0.65
–0.36
–0.42
–0.70
0.10
0.18
0.30
–0.05
0.13
0.20
0.05
–0.10
–0.31
0.08
–0.26
0.11
–0.11
0.00
0.06
–0.02
–0.08
0.02
0.16
–0.03
0.02
0.40
0.42
0.20
–0.35
–0.28
–0.01
–0.40
–0.37
–0.08
–0.17
–0.28
–0.38
–0.39
–0.14
–0.49
–0.06
0.08
0.20
0.04
–0.06
0.21
60°
65°
70°
75°
80°
85°
–0.10
0.02
0.33
0.08
–0.36
0.00
–0.03
0.23
–0.12
–0.11
0.25
–0.32
0.77
0.48
0.28
0.62
0.42
0.70
0.44
0.05
0.73
0.53
0.17
0.22
–0.38
–0.66
–0.17
–0.59
0.21
–0.22
0.05
–0.14
–0.03
–0.06
0.25
0.10
–0.33
0.06
–0.35
–0.22
0.09
–0.31
–0.13
–0.24
–0.01
–0.54
–0.33
0.15
0.45
0.05
0.19
0.28
–0.38
–0.17
–0.22
0.22
–0.23
–0.16
–0.01
–0.36
–0.15
–0.42
–0.02
–0.41
–0.23
–0.36
0.03
0.34
0.08
0.34
–0.26
0.02
90°
95°
100°
105°
110°
115°
0.29
–0.15
–0.01
0.27
–0.49
–0.71
–0.45
0.24
–0.25
–0.25
0.11
–0.80
0.65
–0.07
0.55
0.38
0.18
0.69
0.17
0.67
0.14
0.28
0.15
–0.05
–0.22
–0.50
–0.14
–0.60
–0.10
–0.56
0.62
0.18
0.29
0.11
–0.22
0.46
–0.21
0.41
–0.21
0.12
–0.15
–0.53
–0.03
–0.19
0.20
0.05
–0.03
–0.23
0.44
0.40
0.25
0.11
0.54
–0.12
–0.51
–0.24
0.02
0.21
–0.11
–0.03
–0.21
–0.32
–0.15
0.02
–0.22
0.19
–0.54
–0.05
0.17
0.63
0.67
0.13
120°
125°
130°
135°
140°
145°
0.24
0.43
–0.03
0.43
1.28
1.27
–0.70
0.33
0.15
–0.13
0.74
1.25
–0.52
0.04
1.13
0.50
0.74
1.89
0.54
–0.70
0.38
0.76
0.16
1.40
–0.58
–0.61
–1.15
0.40
–0.24
–0.08
–0.10
0.19
–0.95
0.31
1.07
0.02
0.22
–0.60
–0.33
–1.44
0.80
0.11
–0.24
0.08
–0.42
–1.14
0.35
0.69
–0.11
0.50
–0.40
–0.55
–0.13
1.14
–0.24
–0.24
–0.34
–0.57
–0.99
1.10
–0.71
–0.28
0.01
–0.90
–1.27
0.92
0.02
0.09
0.48
–0.51
–0.80
1.02
150°
155°
160°
165°
170°
175°
0.24
–1.15
–1.74
–1.27
–0.52
0.01
0.57
–0.98
–2.10
–1.78
–0.90
–0.25
1.75
0.12
–1.74
–1.77
–0.63
0.25
2.02
0.72
–1.72
–2.66
–1.40
–0.20
1.39
0.91
–1.48
–3.47
–2.53
–1.11
1.53
1.84
–0.33
–2.84
–2.23
–0.76
0.45
1.74
0.10
–3.35
–3.27
–1.32
0.14
1.75
0.65
–3.02
–3.67
–1.49
0.10
1.80
1.14
–2.62
–3.77
–1.39
–0.20
1.32
1.23
–2.67
–4.54
–1.89
–0.09
0.96
1.40
–2.34
–5.07
–2.32
0.79
1.02
1.99
–1.36
–4.90
–2.26
180°
185°
190°
195°
200°
205°
0.18
0.02
–0.51
–1.27
–1.79
–1.20
–0.04
–0.24
–0.89
–1.77
–2.08
–0.95
0.54
0.29
–0.51
–1.55
–1.55
0.22
0.27
0.01
–0.95
–2.24
–1.82
0.38
–0.55
–0.91
–2.14
–3.34
–1.99
0.40
–0.23
–0.74
–2.34
–3.44
–0.68
1.89
–0.64
–1.33
–3.19
–3.35
0.07
1.90
–0.66
–1.38
–3.50
–3.12
0.75
2.26
–0.50
–1.33
–3.56
–2.60
1.23
2.33
–0.89
–1.80
–4.09
–2.64
1.38
1.69
–1.14
–2.06
–4.78
–2.46
1.37
1.24
–0.97
–2.05
–4.65
–1.52
2.05
1.40
210°
215°
220°
225°
230°
235°
0.24
1.35
1.46
0.61
0.01
0.40
0.70
1.49
0.99
–0.01
0.08
0.22
1.83
1.98
0.85
0.49
0.92
0.00
1.65
1.11
0.10
0.84
0.58
–0.50
1.18
0.12
–0.02
0.33
–1.07
–0.71
1.99
0.64
0.84
0.02
–0.49
–0.14
0.99
0.30
0.32
–0.98
–0.63
–0.55
0.78
0.56
0.07
–0.63
–0.85
0.48
0.49
0.71
–0.13
–0.46
–0.93
0.82
–0.27
0.72
–0.80
–0.83
–0.68
0.06
–0.14
0.80
–1.10
–1.83
0.11
–0.16
0.89
0.61
–1.33
–1.17
0.60
0.47
240°
245°
250°
255°
260°
265°
0.27
–0.65
–0.43
0.31
–0.01
–0.14
–0.73
–0.79
0.13
–0.29
–0.31
0.28
–0.32
0.74
0.07
0.37
0.68
0.29
0.41
–0.44
0.02
0.59
0.58
0.54
–0.89
–0.74
0.37
–0.16
–0.34
–0.92
–0.01
0.93
0.07
0.12
–0.02
0.77
0.46
–0.16
–0.03
–0.23
0.37
0.27
–0.04
0.41
–0.57
0.51
0.37
0.04
0.24
0.10
0.14
0.62
0.32
0.48
0.50
–1.03
0.11
0.38
–0.14
0.05
–0.54
–0.65
0.06
–0.51
–0.02
–0.47
–0.67
0.16
0.63
0.56
0.23
–0.27
270°
275°
280°
285°
290°
295°
0.36
0.15
–0.14
0.15
0.22
–0.05
–0.14
–0.07
0.18
–0.25
–0.10
0.37
0.79
0.41
0.31
0.73
0.49
0.63
–0.33
0.31
0.59
0.66
0.50
–0.19
–0.02
0.02
0.13
–0.68
–0.01
–0.32
0.61
0.07
0.47
0.05
0.08
–0.10
0.01
–0.12
0.21
–0.15
–0.25
–0.01
0.15
0.50
–0.23
–0.37
0.07
0.02
0.82
–0.30
–0.23
0.34
0.33
0.55
–0.67
–0.30
–0.05
–0.17
0.18
0.33
–0.37
–0.47
–0.60
0.03
–0.07
–0.67
–0.36
–0.56
0.32
0.46
–0.08
0.15
300°
305°
310°
315°
320°
325°
0.02
0.38
0.48
0.17
–0.03
0.08
0.10
–0.09
0.33
0.41
0.01
–0.32
0.84
0.28
0.19
0.67
0.61
0.29
0.49
0.50
0.18
0.09
–0.18
–0.08
–0.38
–0.83
–0.31
–0.37
–0.48
–0.22
0.21
–0.04
0.00
0.18
0.74
0.54
–0.09
0.46
0.05
0.25
–0.46
–0.31
0.34
0.36
–0.13
–0.19
0.45
0.23
0.74
–0.10
0.51
0.58
0.28
0.21
–0.58
0.16
–0.30
–0.35
–0.07
0.09
–0.16
–0.62
–0.04
–0.02
–0.61
–0.48
0.31
0.49
–0.04
–0.08
0.31
0.15
330°
335°
340°
345°
350°
355°
0.31
0.43
0.39
0.28
0.16
0.08
–0.20
0.09
0.23
0.22
0.13
0.04
0.16
0.21
0.23
0.20
0.11
0.07
0.40
0.65
0.54
0.35
0.16
0.06
–0.37
–0.65
–0.57
–0.28
–0.07
0.02
0.31
0.41
0.40
0.22
0.04
–0.01
0.30
0.25
0.03
–0.02
0.03
0.07
0.07
0.09
–0.04
–0.13
–0.11
–0.05
0.22
0.53
0.50
0.21
0.01
–0.01
–0.42
–0.60
–0.32
–0.09
0.03
0.07
0.04
0.15
–0.10
–0.29
–0.23
–0.10
0.02
0.25
0.14
0.05
0.10
0.10
BE171211.book Page 75 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
75
Table A.19 Influence of Hand-held Analyzer body on directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to the display, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.00
0.00
0.06
0.16
0.13
0.02
0.01
–0.02
–0.05
–0.07
–0.10
–0.29
0.01
–0.03
–0.14
–0.22
–0.04
0.06
0.01
0.00
0.02
0.15
0.11
0.01
0.01
0.01
–0.01
0.04
0.21
0.06
0.05
0.10
0.10
–0.08
–0.33
–0.31
0.00
0.01
–0.14
–0.20
–0.29
–0.34
–0.01
–0.11
–0.06
–0.21
–0.16
–0.08
–0.09
0.00
–0.08
0.13
–0.03
0.31
–0.01
–0.12
–0.12
–0.18
–0.12
–0.31
0.02
–0.10
–0.07
–0.03
–0.06
–0.05
30°
35°
40°
45°
50°
55°
–0.01
0.01
–0.06
0.15
0.08
–0.24
–0.25
–0.30
–0.28
–0.25
–0.40
–0.11
–0.11
0.13
–0.12
–0.07
0.18
–0.12
–0.20
–0.28
–0.51
–0.15
–0.33
–0.27
0.28
0.31
0.46
0.24
–0.03
0.02
–0.15
–0.12
–0.11
–0.22
0.31
–0.06
–0.29
–0.65
–0.41
–0.20
–0.26
–0.64
–0.36
–0.41
–0.47
–0.36
–0.48
0.52
0.13
0.23
0.19
0.03
–0.52
–0.45
–0.49
–0.37
–0.25
–0.28
–0.22
–0.63
–0.28
–0.26
–0.49
–0.45
–0.16
–0.32
60°
65°
70°
75°
80°
85°
0.02
–0.06
0.14
–0.03
0.57
–0.10
–0.25
–0.37
–0.42
–0.31
–0.48
0.15
0.00
0.25
0.27
0.13
0.12
–0.12
–0.28
–0.59
–0.55
–0.15
–0.21
–0.19
0.04
0.37
0.24
0.01
0.38
0.44
–0.06
–0.40
–0.49
–0.45
–0.57
0.04
–0.65
–0.59
–0.55
–0.69
–0.83
–0.80
–0.45
–0.81
–0.48
–0.86
–0.28
0.08
0.16
–0.06
–0.60
–0.11
–0.02
0.16
–0.39
–0.07
–0.24
–0.71
–0.59
–0.34
–0.46
–0.69
–0.44
–0.26
–0.65
–0.41
90°
95°
100°
105°
110°
115°
0.19
–0.19
–0.23
–0.31
–0.10
–0.03
–0.38
–0.74
–0.11
0.05
0.23
0.00
0.12
0.13
–1.10
–0.53
–0.18
–0.18
–0.39
–0.39
–0.17
–0.24
0.21
0.74
0.29
0.28
0.68
–0.62
–0.34
0.53
–0.25
–0.15
–0.31
0.05
–0.01
0.00
–0.18
–0.77
–0.59
–0.81
–1.50
–1.53
–0.59
0.13
0.53
–0.29
0.61
0.91
0.13
–0.67
–0.45
–0.29
–0.50
–0.29
–0.10
–0.72
–0.16
–0.06
–0.37
–1.03
–0.81
–0.74
–0.67
–0.26
–0.73
–0.22
120°
125°
130°
135°
140°
145°
0.46
–0.13
–0.07
–0.32
–0.86
0.37
–0.21
–1.11
–0.38
0.06
–1.17
–0.86
–0.07
0.28
0.39
0.09
–1.21
–0.90
0.05
0.15
–0.75
–0.66
–1.03
–1.62
0.30
0.11
–0.84
0.53
0.71
–0.51
0.85
0.16
0.01
0.30
0.22
–1.23
–0.36
–0.39
–0.22
–0.78
–0.75
–2.22
0.32
–0.05
–0.30
–1.77
–1.18
–0.88
–0.38
1.34
0.53
–0.15
0.77
0.01
0.16
0.76
–0.81
–0.11
0.48
0.18
–1.45
0.22
–0.01
–0.44
–0.90
–1.67
150°
155°
160°
165°
170°
175°
1.06
0.56
1.87
–1.12
–5.37
–2.54
1.34
–0.09
1.93
–0.77
–6.32
–3.12
1.52
0.09
1.95
0.23
–6.15
–3.58
0.89
0.09
1.47
0.35
–5.74
–4.38
0.98
0.94
1.81
1.42
–4.80
–4.24
–0.03
0.89
0.89
1.03
–4.57
–5.03
–0.73
1.28
0.11
0.96
–4.96
–5.29
0.25
2.30
0.37
2.18
–5.87
–4.55
0.49
1.96
0.63
1.69
–4.30
–4.75
–1.53
0.56
0.39
1.76
–2.83
–7.53
–2.07
0.39
0.81
1.50
–2.17
–7.07
180°
185°
190°
195°
200°
205°
–1.10
–2.28
–5.09
–1.08
2.10
1.02
–1.40
–2.74
–5.66
–0.80
2.04
0.34
–1.49
–2.88
–5.44
0.08
2.18
0.10
–2.01
–3.54
–5.49
–0.05
1.38
–0.46
–1.93
–3.66
–5.29
0.77
1.38
0.20
–2.62
–4.62
–5.15
0.37
0.36
0.18
–2.74
–4.44
–5.27
0.17
–0.18
0.61
–1.69
–4.67
–2.88
0.63
0.53
1.00
–2.26
–5.84
–3.47
1.38
0.63
1.69
–2.95
–5.59
–4.84
0.74
0.08
0.65
–3.46
–6.91
–2.93
1.59
1.56
0.78
210°
215°
220°
225°
230°
235°
0.84
–0.31
–1.40
–0.50
0.34
0.28
0.79
–1.23
–1.96
0.33
0.16
–0.82
0.53
–1.80
–1.72
0.76
0.78
–0.33
–0.15
–1.71
–0.84
0.15
0.03
–1.13
–0.16
–0.50
0.94
0.85
–0.74
–1.21
–0.71
–0.96
0.40
0.21
–0.86
0.18
–0.78
–1.48
–0.11
–0.61
–1.26
0.60
0.73
0.45
0.47
0.03
0.02
2.23
0.41
0.03
1.69
0.12
1.87
1.17
–0.44
–0.91
0.19
–1.66
0.16
0.11
–1.44
–0.30
–0.16
–0.93
1.49
0.99
240°
245°
250°
255°
260°
265°
–0.33
0.19
–0.34
0.09
–0.28
–0.09
–0.83
0.09
0.53
0.24
–0.19
–0.70
–0.30
–0.27
0.55
–0.15
–0.99
–0.25
0.30
1.39
0.47
–0.78
–0.59
0.32
0.69
0.88
–0.97
–0.30
1.07
0.89
1.15
–0.09
–0.85
–0.21
0.42
–0.46
0.68
–1.41
–0.81
0.00
–0.29
–0.36
0.32
–0.58
–0.25
–0.29
0.29
0.65
–1.23
0.20
0.16
0.15
–0.05
0.89
–0.81
–0.13
0.06
0.00
0.09
–0.34
–1.02
0.41
0.27
0.72
0.69
0.16
270°
275°
280°
285°
290°
295°
–0.31
0.59
0.85
–0.17
0.00
0.39
0.15
0.65
–0.65
–0.45
0.05
0.04
0.91
–0.18
–0.13
0.64
0.55
–0.06
–0.32
–0.48
0.25
0.11
–1.08
–0.37
–0.31
0.58
0.77
–0.44
0.70
1.05
–0.08
0.60
–0.72
0.01
0.16
–0.51
0.36
–0.63
–0.38
0.11
–0.28
–0.26
–0.66
–0.31
–0.12
–0.30
0.06
0.18
0.25
0.60
0.51
0.26
0.53
0.81
0.02
0.43
–0.46
0.21
0.27
0.56
0.75
0.20
0.59
0.44
0.08
0.05
300°
305°
310°
315°
320°
325°
0.40
–0.26
0.03
0.20
0.22
0.32
–0.27
–0.12
–0.06
0.27
0.17
–0.41
0.10
0.47
0.58
–0.16
–0.49
0.29
0.43
–0.19
–0.96
–0.04
0.15
0.00
–0.02
–0.20
0.65
0.52
0.39
0.04
0.05
0.63
0.12
–0.10
0.20
0.48
0.03
–0.22
–0.22
0.11
–0.02
–0.49
0.19
0.43
0.17
–0.32
–0.13
–0.10
0.48
0.52
0.45
0.47
0.68
0.57
0.01
–0.29
0.12
0.20
0.05
0.17
0.24
0.64
0.49
0.29
0.21
0.28
330°
335°
340°
345°
350°
355°
0.35
0.06
–0.11
0.04
0.06
0.00
–0.46
–0.33
0.06
0.08
0.03
0.05
0.35
0.58
0.43
0.20
0.07
0.01
–0.21
–0.49
–0.39
–0.11
–0.01
0.02
0.48
0.69
0.76
0.36
0.06
–0.01
0.06
–0.26
–0.55
–0.34
–0.12
–0.02
–0.34
–0.03
0.05
0.05
0.10
0.06
0.18
0.19
–0.12
–0.04
0.12
0.07
0.43
0.49
0.09
0.12
0.19
0.05
–0.01
–0.01
–0.02
0.02
0.01
0.05
0.19
0.34
0.44
0.28
0.16
0.20
BE171211.book Page 76 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
76
Table A.20 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in
a plane parallel to the Hand-held Analyzer’s display, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1250 Hz
1600 Hz
2000 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
–0.01
–0.02
–0.01
–0.03
–0.02
–0.02
0.02
0.01
0.01
0.00
0.04
0.06
0.01
0.00
0.00
–0.02
0.00
0.02
1000 Hz
0.00
0.00
0.00
0.02
0.01
0.00
0.01
0.00
0.00
–0.01
–0.01
0.00
–0.03
–0.03
–0.02
–0.03
–0.04
–0.08
0.00
–0.01
–0.04
–0.10
–0.16
–0.24
2240 Hz
0.01
0.02
0.04
0.07
0.11
0.14
–0.01
–0.04
–0.08
–0.15
–0.21
–0.24
–0.03
–0.02
–0.01
0.03
0.06
0.07
–0.01
–0.03
–0.08
–0.16
–0.27
–0.39
0.01
–0.01
–0.03
–0.04
0.01
0.09
30°
35°
40°
45°
50°
55°
–0.01
–0.01
–0.03
–0.05
–0.08
–0.13
0.08
0.09
0.11
0.14
0.15
0.18
0.02
0.03
0.05
0.09
0.13
0.17
–0.01
–0.02
–0.04
–0.06
–0.08
–0.09
0.01
0.04
0.08
0.14
0.20
0.23
–0.14
–0.25
–0.37
–0.52
–0.65
–0.73
–0.31
–0.35
–0.33
–0.27
–0.20
–0.17
0.11
0.04
–0.10
–0.26
–0.38
–0.37
–0.25
–0.19
–0.08
–0.02
–0.06
–0.24
0.01
–0.11
–0.28
–0.41
–0.42
–0.31
–0.49
–0.50
–0.44
–0.41
–0.49
–0.66
0.15
0.14
0.00
–0.21
–0.34
–0.31
60°
65°
70°
75°
80°
85°
–0.15
–0.16
–0.22
–0.24
–0.26
–0.32
0.17
0.14
0.14
0.10
0.04
0.01
0.21
0.25
0.30
0.33
0.33
0.33
–0.09
–0.07
–0.03
0.04
0.12
0.19
0.25
0.23
0.20
0.15
0.12
0.13
–0.74
–0.66
–0.53
–0.41
–0.34
–0.34
–0.24
–0.43
–0.67
–0.82
–0.78
–0.56
–0.26
–0.14
–0.18
–0.41
–0.71
–0.84
–0.47
–0.58
–0.46
–0.32
–0.40
–0.73
–0.27
–0.40
–0.65
–0.78
–0.66
–0.55
–0.79
–0.74
–0.70
–0.87
–1.17
–1.21
–0.35
–0.52
–0.64
–0.58
–0.61
–0.91
90°
95°
100°
105°
110°
115°
–0.35
–0.37
–0.40
–0.46
–0.48
–0.47
–0.06
–0.12
–0.17
–0.23
–0.27
–0.33
0.28
0.22
0.15
0.05
–0.03
–0.11
0.25
0.27
0.24
0.17
0.04
–0.12
0.20
0.31
0.43
0.51
0.52
0.45
–0.39
–0.44
–0.42
–0.34
–0.22
–0.13
–0.35
–0.26
–0.32
–0.44
–0.46
–0.35
–0.68
–0.36
–0.16
–0.18
–0.33
–0.41
–1.01
–0.87
–0.48
–0.21
–0.25
–0.43
–0.76
–1.13
–1.13
–0.67
–0.30
–0.33
–1.05
–1.15
–1.51
–1.51
–1.00
–0.60
–1.16
–1.05
–1.03
–1.33
–1.32
–0.74
120°
125°
130°
135°
140°
145°
–0.47
–0.47
–0.45
–0.42
–0.38
–0.38
–0.37
–0.38
–0.38
–0.38
–0.36
–0.33
–0.18
–0.21
–0.21
–0.20
–0.16
–0.11
–0.27
–0.41
–0.50
–0.54
–0.52
–0.46
0.30
0.10
–0.11
–0.28
–0.38
–0.40
–0.13
–0.25
–0.46
–0.70
–0.90
–1.00
–0.19
–0.12
–0.23
–0.49
–0.81
–1.06
–0.30
–0.12
–0.06
–0.23
–0.58
–0.94
–0.50
–0.34
–0.19
–0.23
–0.53
–0.93
–0.60
–0.66
–0.45
–0.29
–0.45
–0.90
–0.68
–0.98
–1.02
–0.79
–0.74
–1.07
–0.34
–0.52
–0.89
–0.82
–0.56
–0.67
150°
155°
160°
165°
170°
175°
–0.30
–0.29
–0.25
–0.27
–0.23
–0.23
–0.32
–0.28
–0.25
–0.22
–0.21
–0.20
–0.05
0.00
0.05
0.08
0.11
0.13
–0.37
–0.26
–0.17
–0.08
–0.02
0.02
–0.34
–0.25
–0.13
–0.03
0.05
0.09
–0.99
–0.88
–0.74
–0.60
–0.49
–0.43
–1.14
–1.05
–0.85
–0.63
–0.45
–0.34
–1.13
–1.10
–0.89
–0.63
–0.41
–0.28
–1.24
–1.27
–1.07
–0.77
–0.49
–0.33
–1.37
–1.55
–1.36
–1.00
–0.65
–0.43
–1.61
–1.96
–1.89
–1.51
–1.10
–0.82
–1.21
–1.78
–1.89
–1.51
–1.00
–0.64
180°
185°
190°
195°
200°
205°
–0.20
–0.21
–0.21
–0.24
–0.27
–0.31
–0.21
–0.21
–0.22
–0.24
–0.26
–0.29
0.12
0.12
0.10
0.07
0.03
–0.02
0.02
0.01
–0.04
–0.09
–0.18
–0.28
0.11
0.09
0.03
–0.07
–0.18
–0.30
–0.41
–0.44
–0.52
–0.64
–0.79
–0.92
–0.32
–0.37
–0.50
–0.69
–0.92
–1.10
–0.25
–0.31
–0.47
–0.71
–0.97
–1.15
–0.28
–0.36
–0.56
–0.85
–1.15
–1.32
–0.38
–0.48
–0.74
–1.10
–1.45
–1.56
–0.75
–0.87
–1.20
–1.62
–1.97
–1.95
–0.54
–0.70
–1.10
–1.62
–1.95
–1.75
210°
215°
220°
225°
230°
235°
–0.33
–0.37
–0.38
–0.41
–0.45
–0.43
–0.32
–0.37
–0.38
–0.41
–0.41
–0.41
–0.07
–0.15
–0.18
–0.22
–0.23
–0.22
–0.39
–0.46
–0.54
–0.55
–0.52
–0.43
–0.40
–0.46
–0.43
–0.31
–0.13
0.10
–1.01
–0.99
–0.87
–0.65
–0.41
–0.22
–1.16
–1.03
–0.75
–0.42
–0.18
–0.11
–1.14
–0.90
–0.52
–0.18
–0.04
–0.13
–1.22
–0.85
–0.43
–0.17
–0.17
–0.38
–1.30
–0.80
–0.37
–0.26
–0.47
–0.68
–1.49
–0.93
–0.67
–0.81
–1.07
–1.01
–1.14
–0.63
–0.60
–0.89
–0.93
–0.56
240°
245°
250°
255°
260°
265°
–0.45
–0.48
–0.46
–0.41
–0.38
–0.35
–0.39
–0.32
–0.29
–0.26
–0.20
–0.13
–0.19
–0.13
–0.05
0.03
0.11
0.19
–0.29
–0.14
0.01
0.13
0.21
0.23
0.32
0.47
0.54
0.53
0.44
0.31
–0.13
–0.15
–0.27
–0.40
–0.49
–0.49
–0.20
–0.36
–0.48
–0.47
–0.37
–0.32
–0.33
–0.45
–0.40
–0.26
–0.24
–0.42
–0.52
–0.46
–0.28
–0.27
–0.53
–0.90
–0.61
–0.38
–0.38
–0.75
–1.14
–1.10
–0.71
–0.69
–1.11
–1.54
–1.45
–1.14
–0.42
–0.86
–1.40
–1.33
–1.03
–1.11
270°
275°
280°
285°
290°
295°
–0.29
–0.29
–0.23
–0.19
–0.16
–0.15
–0.08
–0.02
0.02
0.06
0.09
0.12
0.24
0.27
0.28
0.27
0.25
0.21
0.22
0.17
0.09
0.01
–0.05
–0.09
0.19
0.10
0.07
0.09
0.13
0.17
–0.43
–0.36
–0.34
–0.40
–0.50
–0.62
–0.41
–0.60
–0.77
–0.78
–0.64
–0.42
–0.69
–0.85
–0.73
–0.45
–0.24
–0.20
–0.98
–0.72
–0.43
–0.35
–0.46
–0.54
–0.73
–0.56
–0.67
–0.77
–0.63
–0.38
–1.10
–1.25
–1.17
–0.88
–0.71
–0.74
–1.20
–0.93
–0.67
–0.66
–0.67
–0.50
300°
305°
310°
315°
320°
325°
–0.11
–0.09
–0.10
–0.05
–0.02
–0.03
0.12
0.12
0.14
0.12
0.09
0.07
0.17
0.12
0.09
0.05
0.02
0.00
–0.11
–0.11
–0.10
–0.08
–0.06
–0.04
0.20
0.19
0.15
0.12
0.07
0.03
–0.69
–0.70
–0.62
–0.49
–0.34
–0.22
–0.26
–0.20
–0.23
–0.30
–0.34
–0.34
–0.28
–0.37
–0.36
–0.25
–0.10
0.01
–0.44
–0.24
–0.08
–0.04
–0.10
–0.17
–0.27
–0.31
–0.39
–0.35
–0.20
–0.05
–0.77
–0.64
–0.47
–0.39
–0.42
–0.48
–0.34
–0.34
–0.38
–0.28
–0.06
0.10
330°
335°
340°
345°
350°
355°
–0.04
0.01
–0.02
0.00
–0.02
0.00
0.06
0.02
0.02
0.01
0.00
–0.01
–0.01
–0.02
–0.01
–0.02
–0.01
–0.02
–0.03
–0.02
–0.02
–0.01
0.00
0.00
0.00
–0.01
–0.02
–0.01
–0.01
0.00
–0.12
–0.06
–0.01
0.01
0.01
0.02
–0.30
–0.22
–0.15
–0.09
–0.03
0.00
0.08
0.10
0.08
0.05
0.02
0.00
–0.22
–0.21
–0.16
–0.10
–0.04
0.00
0.06
0.11
0.11
0.08
0.05
0.03
–0.48
–0.39
–0.27
–0.15
–0.06
0.00
0.13
0.08
0.02
–0.01
–0.01
0.00
BE171211.book Page 77 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
77
Table A.21 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in
a plane parallel to the Hand-held Analyzer’s display, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
0°
5°
10°
15°
20°
25°
–0.01
0.01
0.05
0.11
0.19
0.21
0.00
0.01
0.07
0.12
0.14
0.03
0.00
0.01
0.06
0.11
0.11
0.02
0.00
–0.06
–0.08
–0.16
–0.20
–0.21
0.02
–0.06
–0.18
–0.38
–0.60
–0.66
–0.02
–0.05
–0.04
–0.04
–0.06
–0.27
–0.01
–0.07
–0.18
–0.33
–0.34
–0.26
0.02
–0.03
–0.08
–0.17
–0.20
–0.26
0.03
–0.02
–0.12
–0.28
–0.31
–0.35
0.01
–0.07
–0.19
–0.34
–0.43
–0.70
10000 Hz 10600 Hz
–0.01
–0.07
–0.18
–0.34
–0.48
–0.59
–0.01
–0.04
–0.12
–0.26
–0.25
–0.14
30°
35°
40°
45°
50°
55°
0.09
–0.13
–0.30
–0.31
–0.27
–0.40
–0.23
–0.47
–0.51
–0.45
–0.54
–0.76
–0.19
–0.36
–0.30
–0.22
–0.38
–0.55
–0.23
–0.34
–0.49
–0.45
–0.54
–0.95
–0.47
–0.40
–0.89
–1.37
–1.40
–1.66
–0.48
–0.33
–0.48
–1.20
–0.97
–1.24
–0.44
–0.83
–0.80
–1.01
–1.30
–1.28
–0.49
–0.64
–0.78
–1.17
–1.17
–1.64
–0.60
–0.83
–0.96
–1.21
–1.52
–1.67
–1.22
–1.40
–1.58
–1.78
–2.03
–2.37
–0.75
–0.99
–1.49
–1.91
–2.14
–2.29
–0.43
–0.85
–1.06
–1.46
–2.00
–2.36
60°
65°
70°
75°
80°
85°
–0.63
–0.67
–0.64
–0.80
–0.94
–0.91
–0.87
–0.94
–1.05
–1.13
–1.24
–1.31
–0.52
–0.68
–1.04
–1.17
–1.09
–1.17
–1.11
–1.22
–1.16
–0.98
–1.56
–1.85
–1.59
–1.74
–2.03
–2.12
–2.09
–2.30
–1.80
–1.85
–2.11
–2.11
–2.23
–2.66
–1.97
–1.98
–2.65
–2.68
–2.87
–3.07
–1.53
–2.20
–2.36
–2.90
–3.03
–3.22
–2.11
–2.16
–2.63
–3.02
–3.61
–3.57
–2.54
–3.09
–3.21
–3.52
–4.10
–4.59
–2.84
–2.97
–3.28
–3.69
–3.99
–4.78
–2.56
–3.08
–3.27
–3.49
–4.09
–4.43
90°
95°
100°
105°
110°
115°
–1.13
–1.50
–1.44
–1.38
–1.64
–1.50
–1.48
–1.69
–1.95
–2.06
–1.90
–2.06
–1.25
–1.37
–1.82
–2.16
–2.11
–2.00
–1.90
–1.74
–1.64
–2.26
–2.97
–2.82
–2.90
–2.54
–2.79
–2.52
–3.63
–3.89
–2.47
–3.07
–2.79
–3.16
–2.89
–3.69
–3.18
–3.42
–3.75
–3.58
–3.76
–3.78
–3.26
–3.59
–3.95
–4.01
–3.51
–4.32
–3.78
–3.89
–4.28
–4.60
–4.21
–4.41
–4.48
–4.93
–5.00
–5.36
–5.27
–4.95
–5.06
–4.97
–5.25
–5.30
–5.82
–5.42
–5.22
–5.01
–5.14
–5.65
–5.93
–5.53
120°
125°
130°
135°
140°
145°
–0.83
–0.51
–0.84
–1.18
–1.03
–0.87
–1.82
–1.02
–0.93
–1.49
–1.64
–1.36
–2.00
–1.52
–0.88
–1.05
–1.62
–1.59
–2.43
–2.09
–1.71
–1.50
–1.82
–2.06
–3.87
–3.15
–2.54
–2.27
–2.40
–3.34
–4.23
–4.18
–3.10
–2.46
–2.16
–2.72
–5.02
–5.01
–4.62
–3.17
–2.94
–3.07
–4.74
–5.18
–5.44
–3.43
–3.29
–3.12
–4.86
–6.15
–5.76
–4.47
–3.49
–3.65
–5.80
–6.90
–6.57
–5.93
–4.25
–4.53
–5.66
–6.72
–7.19
–6.50
–4.61
–4.82
–5.32
–6.57
–7.84
–6.70
–4.80
–4.90
150°
155°
160°
165°
170°
175°
–1.21
–1.87
–2.21
–1.91
–1.33
–0.90
–1.50
–2.19
–2.70
–2.44
–1.75
–1.24
–1.44
–1.96
–2.69
–2.59
–1.81
–1.16
–1.88
–2.11
–2.94
–3.31
–2.61
–1.80
–3.30
–3.03
–3.64
–4.10
–3.39
–2.51
–3.55
–3.43
–3.91
–4.74
–4.09
–3.03
–4.14
–3.98
–4.18
–5.28
–4.94
–3.67
–4.33
–4.38
–4.24
–5.46
–5.37
–3.94
–4.44
–5.16
–4.74
–5.74
–5.91
–4.43
–4.91
–6.15
–5.60
–6.40
–6.89
–5.34
–4.88
–6.34
–5.74
–6.50
–7.42
–5.75
–4.98
–6.24
–6.07
–6.24
–7.53
–6.16
180°
185°
190°
195°
200°
205°
–0.77
–0.96
–1.42
–1.98
–2.20
–1.81
–1.09
–1.35
–1.96
–2.64
–2.75
–2.06
–0.97
–1.29
–2.02
–2.69
–2.54
–1.77
–1.49
–1.84
–2.69
–3.34
–2.98
–2.33
–2.29
–2.89
–4.06
–4.59
–3.75
–3.06
–2.72
–3.38
–4.54
–4.63
–3.52
–3.27
–3.21
–3.94
–5.26
–5.09
–4.05
–4.23
–3.43
–4.30
–5.76
–5.23
–4.26
–4.59
–3.84
–4.83
–6.28
–5.58
–4.83
–5.35
–4.67
–5.80
–7.24
–6.32
–5.69
–6.21
–5.00
–6.28
–7.79
–6.35
–6.07
–6.12
–5.36
–6.67
–7.74
–6.17
–6.59
–5.94
210°
215°
220°
225°
230°
235°
–1.17
–0.89
–1.11
–1.23
–0.82
–0.59
–1.37
–1.40
–1.79
–1.50
–0.95
–1.22
–1.44
–1.73
–1.64
–1.08
–1.09
–1.61
–2.40
–2.61
–2.01
–1.50
–1.62
–1.98
–3.20
–2.83
–2.20
–2.50
–2.75
–3.61
–3.65
–2.68
–2.45
–2.52
–3.42
–4.45
–3.96
–3.16
–3.01
–3.33
–5.05
–4.94
–4.31
–3.19
–3.41
–3.87
–5.65
–5.46
–4.32
–3.87
–3.49
–5.25
–5.76
–6.32
–4.79
–4.68
–4.37
–6.45
–6.79
–6.52
–5.09
–4.72
–5.03
–6.75
–7.54
–6.68
–5.34
–4.80
–5.52
–7.00
–8.09
–6.37
240°
245°
250°
255°
260°
265°
–1.00
–1.55
–1.58
–1.42
–1.48
–1.48
–1.91
–1.96
–1.94
–2.15
–1.97
–1.74
–1.89
–2.08
–2.19
–2.20
–1.87
–1.34
–2.45
–2.96
–3.30
–2.38
–1.59
–1.66
–4.22
–3.97
–3.16
–2.64
–3.14
–2.79
–4.29
–3.63
–3.16
–3.05
–2.98
–2.94
–4.89
–3.79
–3.62
–3.76
–3.65
–3.49
–4.83
–4.32
–3.83
–4.15
–4.03
–3.71
–4.96
–4.33
–4.33
–4.83
–4.33
–3.93
–5.82
–4.99
–5.39
–5.25
–5.07
–4.89
–5.37
–5.62
–6.01
–5.41
–5.24
–4.98
–5.51
–5.77
–5.84
–5.86
–5.24
–5.24
270°
275°
280°
285°
290°
295°
–1.17
–0.95
–0.92
–0.77
–0.63
–0.67
–1.49
–1.27
–1.20
–1.15
–1.09
–0.98
–1.23
–1.20
–1.25
–1.23
–1.01
–0.65
–1.97
–2.14
–1.55
–0.98
–1.20
–1.33
–2.73
–2.12
–2.48
–2.37
–2.05
–1.75
–2.73
–2.63
–2.22
–2.19
–2.14
–1.86
–3.11
–3.06
–2.98
–2.62
–2.57
–2.07
–3.47
–3.39
–3.15
–3.04
–2.54
–2.18
–3.94
–3.66
–3.63
–3.10
–2.61
–2.27
–4.49
–4.62
–4.16
–3.46
–3.26
–3.04
–5.23
–4.76
–3.97
–3.82
–3.32
–3.09
–5.09
–4.53
–4.25
–3.53
–3.40
–3.13
300°
305°
310°
315°
320°
325°
–0.64
–0.42
–0.29
–0.31
–0.28
–0.10
–0.89
–0.74
–0.52
–0.45
–0.55
–0.52
–0.54
–0.62
–0.44
–0.24
–0.27
–0.24
–1.10
–0.80
–0.48
–0.62
–0.83
–0.57
–1.73
–1.73
–1.35
–1.41
–1.17
–0.72
–1.77
–1.21
–1.12
–1.14
–0.47
–0.37
–1.88
–1.31
–1.30
–1.03
–0.85
–0.76
–1.74
–1.65
–1.34
–1.26
–0.88
–0.77
–2.11
–1.83
–1.51
–1.28
–1.04
–0.87
–2.63
–2.33
–2.13
–1.81
–1.66
–1.46
–2.89
–2.40
–2.22
–2.02
–1.50
–1.12
–2.68
–2.49
–2.04
–1.57
–1.12
–0.91
330°
335°
340°
345°
350°
355°
0.09
0.19
0.18
0.12
0.06
0.02
–0.31
–0.07
0.06
0.08
0.05
0.02
–0.08
0.08
0.12
0.09
0.03
0.01
–0.18
0.05
0.12
0.10
0.07
0.03
–0.64
–0.61
–0.39
–0.16
–0.03
0.01
–0.45
–0.27
–0.09
–0.03
–0.01
0.01
–0.45
–0.33
–0.34
–0.26
–0.12
–0.02
–0.56
–0.37
–0.33
–0.27
–0.16
–0.07
–0.68
–0.45
–0.38
–0.33
–0.20
–0.09
–1.17
–0.73
–0.49
–0.34
–0.17
–0.06
–0.82
–0.65
–0.54
–0.35
–0.16
–0.05
–0.45
–0.23
–0.30
–0.27
–0.14
–0.04
BE171211.book Page 78 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
78
Table A.22 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in
a plane parallel to the Hand-held Analyzer’s display, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.01
–0.03
–0.14
–0.34
–0.52
–0.59
0.00
–0.07
–0.15
–0.29
–0.56
–0.86
0.01
–0.05
–0.12
–0.10
–0.11
–0.40
0.01
–0.05
–0.18
–0.48
–0.81
–1.01
–0.02
–0.09
–0.11
–0.06
–0.09
–0.29
–0.06
–0.08
–0.12
–0.41
–0.97
–1.12
–0.06
–0.14
–0.23
–0.44
–0.57
–1.04
–0.16
–0.41
–0.46
–0.41
–0.65
–1.14
–0.05
–0.16
–0.13
–0.41
–0.50
–0.90
0.03
–0.04
–0.22
–0.31
–0.81
–1.30
0.08
–0.05
–0.13
–0.31
–0.56
–1.05
30°
35°
40°
45°
50°
55°
–0.77
–0.97
–1.09
–1.55
–2.01
–2.35
–1.08
–1.54
–1.60
–1.93
–2.22
–2.71
–0.65
–1.15
–1.55
–2.07
–2.11
–2.53
–1.45
–1.65
–2.07
–2.59
–3.16
–3.46
–0.53
–1.17
–1.65
–1.97
–2.67
–3.39
–1.53
–1.59
–2.09
–2.79
–3.25
–3.77
–1.50
–2.15
–2.50
–2.94
–3.33
–4.17
–1.46
–1.84
–2.82
–3.34
–3.82
–4.34
–1.27
–1.48
–2.31
–3.04
–3.76
–4.35
–1.81
–2.29
–2.88
–3.44
–4.33
–5.37
–1.58
–2.27
–2.92
–3.54
–4.22
–5.22
60°
65°
70°
75°
80°
85°
–2.98
–3.25
–3.71
–3.94
–4.04
–4.76
–3.25
–3.98
–4.20
–4.57
–5.00
–5.03
–3.27
–3.75
–4.23
–4.65
–5.17
–5.57
–3.85
–4.63
–5.27
–5.61
–6.11
–6.75
–3.73
–3.92
–4.82
–5.73
–5.98
–6.38
–4.65
–5.16
–5.34
–6.25
–7.44
–7.62
–4.76
–5.62
–6.37
–6.42
–7.57
–8.45
–5.65
–5.75
–6.88
–7.59
–7.83
–9.09
–4.81
–5.86
–6.39
–7.26
–8.01
–8.59
–5.83
–6.65
–7.77
–8.47
–9.53
–10.22
–6.34
–6.89
–7.78
–8.87
–9.96
–10.91
90°
95°
100°
105°
110°
115°
–5.23
–6.10
–5.82
–5.95
–6.35
–6.45
–5.67
–6.27
–6.54
–6.61
–7.32
–7.62
–5.85
–6.59
–7.41
–7.05
–6.93
–7.51
–6.76
–7.19
–8.10
–8.69
–8.32
–9.00
–7.34
–7.48
–7.76
–9.01
–9.23
–8.60
–7.82
–8.70
–9.09
–9.35
–9.96
–9.92
–8.38
–9.08
–9.66
–10.07
–10.94
–11.45
–9.86
–9.97
–11.18
–11.44
–11.10
–12.22
–9.67
–10.22
–10.79
–10.86
–12.20
–11.94
–11.04
–11.80
–12.47
–12.93
–13.61
–13.87
–11.34
–12.40
–13.58
–13.14
–14.21
–14.37
120°
125°
130°
135°
140°
145°
–6.14
–6.47
–8.01
–7.45
–5.80
–4.92
–6.64
–6.63
–8.53
–8.84
–7.15
–5.37
–7.24
–7.43
–9.32
–9.87
–7.65
–5.71
–9.32
–8.84
–9.29
–10.53
–9.17
–7.24
–8.75
–8.09
–8.93
–11.08
–10.05
–7.78
–10.20
–9.89
–10.87
–13.25
–11.87
–9.03
–11.40
–10.25
–10.41
–12.61
–12.24
–10.09
–12.66
–12.57
–11.28
–13.16
–13.01
–10.41
–12.19
–12.39
–11.06
–13.48
–15.67
–11.98
–14.51
–15.47
–13.41
–13.72
–17.81
–14.27
–14.46
–15.37
–14.47
–14.69
–18.07
–14.49
150°
155°
160°
165°
170°
175°
–5.78
–6.40
–6.84
–6.57
–7.93
–6.74
–6.70
–7.09
–7.89
–7.11
–8.75
–7.72
–7.05
–7.22
–8.72
–7.57
–8.82
–8.19
–7.64
–8.59
–9.87
–8.94
–10.14
–9.37
–7.41
–8.40
–10.14
–9.12
–10.21
–9.95
–8.22
–10.07
–10.65
–10.65
–11.21
–11.37
–8.87
–10.97
–11.15
–11.60
–11.68
–12.68
–10.07
–12.01
–11.51
–12.24
–11.87
–13.45
–10.57
–11.99
–12.24
–13.22
–12.49
–13.91
–11.63
–12.30
–14.01
–15.36
–13.79
–16.67
–12.23
–12.75
–14.83
–16.10
–13.82
–16.83
180°
185°
190°
195°
200°
205°
–5.93
–7.36
–8.03
–6.77
–7.27
–6.34
–6.83
–8.52
–8.84
–7.44
–8.16
–6.91
–7.23
–8.85
–8.94
–7.96
–8.75
–7.35
–8.40
–10.33
–10.25
–9.29
–9.66
–8.81
–8.76
–10.80
–9.79
–9.63
–9.67
–8.60
–10.05
–12.09
–11.07
–11.19
–10.25
–10.20
–11.15
–13.03
–11.38
–11.83
–10.80
–10.46
–12.52
–12.48
–11.64
–12.05
–11.72
–10.16
–13.73
–14.55
–11.90
–12.95
–12.61
–10.24
–14.67
–15.93
–13.90
–14.98
–14.35
–12.52
–16.33
–16.48
–14.80
–15.57
–15.49
–13.10
210°
215°
220°
225°
230°
235°
–6.02
–4.91
–6.75
–8.12
–8.16
–6.29
–6.89
–5.76
–7.77
–9.40
–8.75
–6.80
–6.78
–6.38
–8.22
–9.92
–8.50
–7.61
–7.53
–7.96
–10.08
–10.70
–8.72
–8.52
–7.17
–8.25
–10.59
–11.32
–9.01
–8.34
–8.45
–9.36
–11.43
–12.14
–10.03
–9.71
–9.07
–10.54
–12.55
–12.06
–10.18
–10.60
–9.95
–11.82
–14.64
–12.32
–10.83
–11.54
–9.78
–12.59
–14.73
–11.69
–11.37
–12.98
–12.20
–14.47
–16.73
–13.24
–13.75
–14.62
–13.15
–16.09
–16.88
–13.66
–14.44
–15.75
240°
245°
250°
255°
260°
265°
–6.22
–6.79
–6.64
–6.05
–5.90
–6.06
–6.74
–7.56
–7.37
–6.55
–6.99
–6.47
–8.09
–8.10
–7.20
–7.32
–7.41
–6.68
–9.29
–8.76
–8.22
–9.02
–8.15
–7.23
–8.70
–8.50
–9.08
–8.66
–7.48
–7.31
–9.91
–9.69
–9.82
–9.03
–8.85
–8.62
–11.03
–11.08
–10.31
–9.66
–9.19
–8.86
–11.55
–11.42
–10.62
–10.49
–9.92
–8.99
–12.77
–12.11
–11.63
–11.54
–10.43
–10.53
–14.48
–14.05
–13.74
–13.13
–12.80
–12.10
–14.74
–14.89
–14.51
–13.38
–13.38
–12.57
270°
275°
280°
285°
290°
295°
–5.58
–4.97
–4.23
–4.15
–3.76
–3.41
–5.77
–5.10
–5.09
–4.71
–4.36
–4.04
–5.89
–5.71
–5.34
–4.72
–4.30
–3.93
–7.00
–6.92
–6.09
–5.69
–5.43
–4.66
–7.16
–6.23
–5.98
–5.78
–4.69
–3.88
–7.64
–7.43
–7.10
–5.97
–5.19
–5.16
–8.32
–8.15
–7.26
–6.32
–6.20
–5.41
–9.24
–8.23
–7.31
–7.47
–6.80
–5.82
–9.90
–8.60
–8.16
–7.44
–6.35
–5.81
–11.41
–10.42
–9.90
–8.81
–8.11
–6.88
–11.71
–11.38
–10.32
–9.53
–8.26
–7.53
300°
305°
310°
315°
320°
325°
–3.15
–2.46
–2.08
–1.75
–1.11
–1.12
–3.44
–2.81
–2.29
–2.09
–1.73
–1.58
–3.43
–2.64
–2.28
–2.14
–1.67
–1.23
–3.89
–3.61
–3.19
–2.73
–2.20
–1.65
–3.80
–3.42
–2.68
–1.96
–1.68
–1.24
–4.57
–3.66
–3.13
–2.76
–2.01
–1.54
–4.58
–4.04
–3.30
–2.83
–2.37
–2.00
–5.20
–4.32
–3.68
–3.31
–2.61
–2.02
–4.78
–4.41
–3.73
–2.77
–2.06
–1.46
–6.34
–5.55
–4.68
–3.67
–3.16
–2.59
–6.85
–5.81
–4.81
–4.34
–3.40
–2.65
330°
335°
340°
345°
350°
355°
–0.88
–0.70
–0.61
–0.35
–0.14
–0.05
–1.11
–0.91
–0.70
–0.34
–0.10
–0.01
–0.80
–0.42
–0.17
–0.14
–0.12
–0.07
–1.54
–1.06
–0.85
–0.52
–0.18
–0.06
–0.56
–0.36
–0.09
–0.05
–0.09
–0.04
–1.40
–1.06
–0.87
–0.29
0.00
0.03
–1.44
–0.93
–0.50
–0.32
–0.11
0.05
–1.47
–1.04
–0.77
–0.47
–0.18
–0.21
–0.89
–0.66
–0.44
–0.14
–0.11
–0.03
–2.02
–1.45
–0.99
–0.48
–0.37
–0.08
–1.98
–1.50
–0.88
–0.59
–0.25
–0.14
BE171211.book Page 79 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
79
Table A.23 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in
a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to the display, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1000 Hz
1250 Hz
1600 Hz
2000 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
0.02
0.00
–0.01
0.00
–0.01
–0.02
0.00
–0.01
0.01
0.02
0.03
0.03
0.00
–0.01
0.00
–0.01
–0.02
–0.03
0.00
0.00
0.01
0.00
0.00
–0.03
0.00
0.00
0.00
0.00
0.00
–0.01
0.00
0.01
0.00
–0.02
–0.04
–0.10
0.00
0.00
–0.02
–0.07
–0.13
–0.23
2240 Hz
0.00
0.00
0.03
0.05
0.11
0.13
2500 Hz
0.00
–0.01
–0.05
–0.13
–0.22
–0.33
2800 Hz
0.00
0.01
0.06
0.09
0.14
0.14
0.00
–0.03
–0.07
–0.16
–0.28
–0.41
0.00
0.00
0.00
0.00
0.02
0.07
30°
35°
40°
45°
50°
55°
0.00
–0.01
–0.04
–0.03
–0.06
–0.08
0.07
0.06
0.11
0.12
0.15
0.16
–0.02
–0.02
0.01
0.04
0.08
0.12
–0.04
–0.07
–0.08
–0.12
–0.15
–0.17
0.03
0.05
0.10
0.16
0.20
0.22
–0.16
–0.28
–0.40
–0.55
–0.68
–0.76
–0.30
–0.36
–0.36
–0.30
–0.22
–0.18
0.15
0.09
–0.01
–0.16
–0.30
–0.32
–0.35
–0.31
–0.18
–0.04
–0.02
–0.19
0.10
–0.07
–0.31
–0.55
–0.61
–0.42
–0.47
–0.44
–0.31
–0.21
–0.32
–0.68
0.11
0.04
–0.16
–0.44
–0.54
–0.36
60°
65°
70°
75°
80°
85°
–0.14
–0.12
–0.15
–0.18
–0.22
–0.25
0.16
0.15
0.13
0.10
0.08
0.02
0.18
0.24
0.29
0.32
0.34
0.33
–0.17
–0.16
–0.10
–0.02
0.08
0.17
0.21
0.17
0.11
0.05
0.02
0.06
–0.75
–0.66
–0.53
–0.42
–0.38
–0.42
–0.24
–0.41
–0.67
–0.85
–0.83
–0.67
–0.22
–0.12
–0.16
–0.39
–0.70
–0.85
–0.43
–0.54
–0.42
–0.27
–0.37
–0.74
–0.19
–0.22
–0.54
–0.75
–0.54
–0.38
–1.05
–1.01
–0.69
–0.67
–1.04
–1.13
–0.22
–0.47
–0.94
–0.93
–0.57
–0.75
90°
95°
100°
105°
110°
115°
–0.28
–0.36
–0.37
–0.38
–0.42
–0.47
–0.04
–0.08
–0.16
–0.22
–0.28
–0.31
0.29
0.24
0.16
0.08
–0.02
–0.10
0.24
0.27
0.25
0.16
0.04
–0.12
0.17
0.32
0.47
0.58
0.59
0.50
–0.50
–0.55
–0.50
–0.34
–0.16
–0.04
–0.51
–0.48
–0.56
–0.60
–0.48
–0.24
–0.71
–0.45
–0.35
–0.44
–0.55
–0.41
–1.05
–0.96
–0.63
–0.47
–0.59
–0.71
–0.71
–1.25
–1.25
–0.76
–0.52
–0.75
–0.83
–0.93
–1.58
–1.77
–1.17
–0.84
–1.17
–0.86
–0.77
–1.49
–1.74
–1.01
120°
125°
130°
135°
140°
145°
–0.46
–0.44
–0.45
–0.44
–0.37
–0.37
–0.35
–0.38
–0.38
–0.36
–0.36
–0.33
–0.17
–0.21
–0.22
–0.20
–0.17
–0.12
–0.28
–0.42
–0.51
–0.56
–0.54
–0.47
0.32
0.09
–0.14
–0.33
–0.44
–0.45
–0.03
–0.16
–0.41
–0.71
–0.95
–1.07
0.00
0.08
–0.06
–0.41
–0.82
–1.14
–0.07
0.20
0.20
–0.09
–0.56
–1.01
–0.51
–0.09
0.19
0.07
–0.40
–1.01
–0.89
–0.51
0.01
0.16
–0.19
–0.90
–1.12
–1.25
–0.71
–0.15
–0.17
–0.84
–0.72
–1.11
–1.04
–0.26
0.14
–0.30
150°
155°
160°
165°
170°
175°
–0.32
–0.29
–0.27
–0.25
–0.25
–0.21
–0.31
–0.27
–0.23
–0.20
–0.18
–0.18
–0.07
0.00
0.05
0.09
0.11
0.14
–0.38
–0.28
–0.18
–0.10
–0.02
0.01
–0.38
–0.27
–0.15
–0.03
0.05
0.11
–1.05
–0.94
–0.78
–0.62
–0.49
–0.41
–1.25
–1.13
–0.91
–0.68
–0.48
–0.36
–1.24
–1.18
–0.94
–0.65
–0.41
–0.25
–1.46
–1.50
–1.23
–0.86
–0.55
–0.35
–1.56
–1.79
–1.55
–1.11
–0.71
–0.45
–1.79
–2.35
–2.19
–1.63
–1.10
–0.76
–1.36
–2.28
–2.34
–1.76
–1.11
–0.69
180°
185°
190°
195°
200°
205°
–0.20
–0.22
–0.24
–0.27
–0.28
–0.31
–0.16
–0.17
–0.19
–0.19
–0.23
–0.26
0.15
0.14
0.12
0.09
0.05
0.00
0.02
0.01
–0.01
–0.08
–0.15
–0.26
0.13
0.12
0.07
–0.02
–0.13
–0.26
–0.38
–0.40
–0.49
–0.62
–0.78
–0.96
–0.32
–0.36
–0.49
–0.69
–0.95
–1.19
–0.21
–0.25
–0.41
–0.67
–0.97
–1.23
–0.29
–0.35
–0.56
–0.88
–1.25
–1.53
–0.36
–0.45
–0.70
–1.12
–1.57
–1.84
–0.65
–0.75
–1.09
–1.61
–2.17
–2.35
–0.54
–0.68
–1.11
–1.77
–2.37
–2.27
210°
215°
220°
225°
230°
235°
–0.34
–0.36
–0.40
–0.45
–0.45
–0.48
–0.27
–0.31
–0.34
–0.35
–0.37
–0.36
–0.04
–0.10
–0.16
–0.19
–0.21
–0.20
–0.37
–0.47
–0.54
–0.57
–0.55
–0.45
–0.38
–0.46
–0.46
–0.36
–0.17
0.08
–1.09
–1.13
–1.01
–0.76
–0.43
–0.15
–1.32
–1.22
–0.88
–0.43
–0.04
0.16
–1.29
–1.03
–0.53
0.00
0.32
0.31
–1.48
–1.02
–0.37
0.15
0.29
0.03
–1.60
–0.88
–0.09
0.31
0.15
–0.41
–1.80
–0.83
–0.09
0.00
–0.56
–1.20
–1.31
–0.23
0.25
–0.12
–0.91
–1.12
240°
245°
250°
255°
260°
265°
–0.48
–0.48
–0.46
–0.44
–0.40
–0.38
–0.35
–0.32
–0.27
–0.26
–0.16
–0.09
–0.17
–0.11
–0.02
0.05
0.17
0.26
–0.30
–0.13
0.04
0.20
0.28
0.32
0.33
0.54
0.66
0.66
0.58
0.43
0.03
0.06
–0.06
–0.27
–0.46
–0.55
0.11
–0.14
–0.43
–0.59
–0.57
–0.46
0.02
–0.36
–0.54
–0.44
–0.31
–0.39
–0.42
–0.69
–0.59
–0.46
–0.60
–0.92
–0.84
–0.75
–0.55
–0.75
–1.19
–1.19
–1.17
–0.90
–1.14
–1.70
–1.54
–0.90
–0.80
–1.06
–1.71
–1.45
–0.75
–0.82
270°
275°
280°
285°
290°
295°
–0.34
–0.30
–0.26
–0.22
–0.21
–0.14
–0.03
0.01
0.07
0.10
0.15
0.14
0.33
0.36
0.38
0.36
0.35
0.30
0.30
0.25
0.16
0.07
–0.02
–0.09
0.27
0.13
0.06
0.06
0.10
0.16
–0.54
–0.46
–0.40
–0.40
–0.48
–0.59
–0.44
–0.57
–0.75
–0.80
–0.67
–0.43
–0.65
–0.83
–0.70
–0.37
–0.10
–0.04
–1.01
–0.70
–0.32
–0.22
–0.37
–0.53
–0.67
–0.35
–0.50
–0.72
–0.54
–0.20
–0.77
–1.09
–1.03
–0.62
–0.56
–0.81
–1.11
–0.73
–0.49
–0.76
–0.79
–0.48
300°
305°
310°
315°
320°
325°
–0.15
–0.09
–0.10
–0.06
–0.07
–0.06
0.18
0.17
0.17
0.15
0.15
0.12
0.26
0.20
0.16
0.11
0.08
0.05
–0.12
–0.14
–0.12
–0.10
–0.07
–0.04
0.21
0.22
0.21
0.18
0.13
0.09
–0.66
–0.68
–0.62
–0.50
–0.37
–0.23
–0.23
–0.15
–0.16
–0.24
–0.31
–0.32
–0.14
–0.28
–0.30
–0.19
–0.03
0.09
–0.44
–0.20
0.00
0.02
–0.08
–0.19
–0.09
–0.26
–0.41
–0.39
–0.22
–0.04
–0.88
–0.67
–0.42
–0.35
–0.41
–0.47
–0.32
–0.44
–0.49
–0.28
0.01
0.18
330°
335°
340°
345°
350°
355°
–0.02
–0.03
–0.03
–0.02
–0.01
–0.04
0.08
0.07
0.06
0.03
0.04
0.02
0.03
0.02
0.01
0.01
0.02
0.00
–0.03
–0.01
–0.01
0.00
0.00
0.01
0.06
0.03
0.01
0.01
0.00
0.00
–0.14
–0.07
–0.02
0.00
0.01
0.01
–0.29
–0.23
–0.15
–0.09
–0.04
–0.01
0.15
0.16
0.13
0.08
0.04
0.02
–0.24
–0.23
–0.17
–0.10
–0.04
0.00
0.06
0.09
0.08
0.05
0.02
0.00
–0.44
–0.33
–0.21
–0.10
–0.03
0.00
0.20
0.11
0.03
–0.01
–0.02
–0.01
BE171211.book Page 80 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
80
Table A.24 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in
a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to the display, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
0°
5°
10°
15°
20°
25°
0.00
0.00
0.06
0.13
0.20
0.20
–0.01
0.02
0.09
0.14
0.12
–0.07
0.00
0.03
0.08
0.13
0.14
–0.02
0.00
–0.01
0.07
0.21
0.34
0.32
0.00
–0.02
–0.07
–0.19
–0.36
–0.50
–0.01
0.01
0.04
0.09
0.10
–0.08
0.00
–0.03
–0.07
–0.17
–0.34
–0.48
0.00
–0.03
–0.07
–0.17
–0.34
–0.55
0.00
0.01
–0.07
–0.21
–0.31
–0.39
0.00
–0.08
–0.24
–0.41
–0.45
–0.53
10000 Hz 10600 Hz
0.00
–0.04
–0.23
–0.49
–0.55
–0.50
0.01
–0.07
–0.22
–0.38
–0.40
–0.34
30°
35°
40°
45°
50°
55°
0.07
–0.18
–0.37
–0.27
–0.14
–0.35
–0.43
–0.72
–0.59
–0.31
–0.45
–0.91
–0.27
–0.35
–0.08
–0.04
–0.59
–0.73
0.00
–0.42
–0.37
–0.29
–0.81
–0.82
–0.59
–0.90
–1.29
–1.21
–1.41
–1.78
–0.43
–0.56
–0.60
–1.10
–1.08
–1.21
–0.47
–0.73
–1.05
–0.86
–1.49
–1.48
–0.66
–0.79
–0.95
–1.20
–1.39
–1.49
–0.61
–0.98
–1.13
–1.04
–1.34
–1.80
–1.03
–1.30
–1.36
–1.99
–2.16
–2.23
–0.88
–1.15
–1.53
–2.00
–2.18
–2.71
–0.79
–1.02
–1.19
–1.57
–2.06
–2.46
60°
65°
70°
75°
80°
85°
–0.78
–0.75
–0.52
–0.84
–1.35
–1.07
–0.92
–0.79
–1.27
–1.38
–1.09
–1.71
–0.34
–0.73
–1.05
–0.90
–1.29
–1.16
–0.75
–1.34
–0.76
–1.01
–1.47
–1.62
–1.58
–2.08
–1.93
–2.68
–2.02
–2.49
–1.59
–1.93
–1.94
–2.18
–2.22
–2.71
–2.21
–2.04
–2.69
–2.83
–2.75
–3.35
–1.98
–2.45
–2.45
–3.17
–3.28
–3.19
–1.71
–2.41
–2.68
–2.83
–3.56
–3.67
–2.77
–2.58
–3.33
–3.79
–3.92
–4.23
–2.58
–3.27
–3.19
–3.87
–4.34
–4.87
–3.05
–2.90
–3.55
–3.62
–4.40
–4.72
90°
95°
100°
105°
110°
115°
–0.83
–1.32
–1.22
–0.98
–1.77
–2.02
–1.89
–1.27
–1.81
–1.85
–1.51
–2.45
–1.27
–2.03
–1.44
–1.65
–1.89
–1.40
–1.90
–1.56
–2.16
–2.03
–2.18
–2.38
–2.57
–3.03
–2.85
–3.42
–2.97
–3.43
–2.40
–2.93
–2.94
–3.26
–3.70
–3.07
–3.48
–3.11
–3.94
–3.76
–4.12
–4.57
–3.64
–3.98
–3.78
–4.14
–4.35
–4.64
–3.54
–3.89
–4.16
–4.46
–4.20
–4.96
–4.64
–4.93
–5.00
–4.94
–5.43
–5.48
–4.63
–5.00
–5.37
–5.47
–5.86
–5.58
–5.73
–5.27
–5.44
–5.38
–5.54
–6.30
120°
125°
130°
135°
140°
145°
–1.10
–0.95
–1.44
–0.99
–0.11
–0.07
–2.38
–1.38
–1.60
–1.88
–1.01
–0.44
–2.64
–2.10
–1.07
–1.74
–1.50
–0.31
–1.80
–3.05
–2.02
–1.67
–2.30
–1.02
–3.42
–3.44
–3.99
–2.50
–3.20
–3.05
–3.62
–3.29
–4.40
–3.18
–2.49
–3.60
–3.83
–4.62
–4.25
–5.31
–3.11
–3.87
–4.72
–4.40
–4.80
–5.42
–3.93
–3.67
–5.04
–4.45
–5.24
–5.26
–4.79
–3.58
–5.78
–5.84
–5.83
–5.91
–6.27
–4.22
–6.56
–6.21
–5.85
–6.55
–6.80
–4.64
–6.49
–6.51
–6.16
–6.94
–7.01
–5.20
150°
155°
160°
165°
170°
175°
–1.02
–2.32
–2.83
–2.28
–1.47
–0.91
–1.03
–2.47
–3.48
–3.07
–2.10
–1.41
–0.36
–1.87
–3.59
–3.50
–2.28
–1.34
–0.30
–1.46
–3.73
–4.52
–3.14
–1.87
–1.50
–1.82
–4.02
–5.82
–4.73
–3.22
–2.08
–1.62
–3.57
–5.86
–5.05
–3.48
–3.54
–2.13
–3.52
–6.70
–6.40
–4.31
–4.25
–2.54
–3.40
–6.78
–7.18
–4.85
–4.67
–2.89
–3.31
–6.78
–7.65
–5.10
–5.57
–3.95
–3.80
–7.37
–8.94
–6.10
–5.72
–4.60
–3.89
–7.28
–9.68
–6.72
–5.51
–5.23
–3.99
–6.93
–10.10
–7.22
180°
185°
190°
195°
200°
205°
–0.72
–0.90
–1.46
–2.29
–2.89
–2.39
–1.18
–1.41
–2.10
–3.05
–3.48
–2.46
–1.03
–1.31
–2.17
–3.31
–3.45
–1.82
–1.38
–1.67
–2.72
–4.14
–3.87
–1.84
–2.64
–3.04
–4.37
–5.72
–4.56
–2.36
–2.91
–3.47
–5.20
–6.49
–3.94
–1.58
–3.58
–4.32
–6.33
–6.71
–3.56
–1.98
–3.97
–4.75
–7.03
–6.90
–3.34
–2.11
–4.14
–5.04
–7.45
–6.79
–3.31
–2.51
–5.02
–6.00
–8.50
–7.39
–3.77
–3.75
–5.46
–6.47
–9.45
–7.53
–4.12
–4.49
–5.85
–7.06
–9.97
–7.26
–4.10
–4.93
210°
215°
220°
225°
230°
235°
–1.04
0.00
0.04
–0.83
–1.42
–1.00
–0.92
–0.23
–0.78
–1.79
–1.67
–1.50
–0.34
–0.28
–1.44
–1.78
–1.31
–2.17
–0.71
–1.32
–2.36
–1.60
–1.81
–2.84
–1.72
–2.85
–2.99
–2.60
–3.94
–3.53
–1.61
–3.03
–2.81
–3.57
–4.03
–3.66
–3.05
–3.76
–3.67
–4.91
–4.58
–4.57
–3.74
–3.92
–4.30
–4.96
–5.21
–3.94
–4.43
–4.12
–4.87
–5.20
–5.73
–4.03
–5.74
–4.66
–6.13
–6.17
–6.09
–5.45
–5.86
–4.85
–6.69
–7.39
–5.55
–5.97
–5.44
–5.66
–7.52
–7.38
–5.81
–6.03
240°
245°
250°
255°
260°
265°
–1.10
–1.97
–1.69
–0.92
–1.20
–1.30
–2.40
–2.42
–1.47
–1.84
–1.84
–1.22
–2.44
–1.34
–1.98
–1.66
–1.33
–1.69
–1.88
–2.72
–2.26
–1.71
–1.70
–1.62
–3.70
–3.57
–2.50
–2.99
–3.00
–3.37
–3.56
–2.66
–3.47
–3.25
–3.21
–2.35
–3.61
–4.20
–3.94
–4.01
–3.34
–3.27
–4.48
–3.97
–4.82
–3.62
–3.63
–3.70
–4.63
–4.71
–4.51
–3.91
–4.08
–3.70
–5.03
–6.39
–5.06
–4.73
–5.08
–4.50
–6.27
–6.12
–5.38
–5.91
–5.00
–4.96
–6.95
–5.97
–5.54
–5.33
–5.17
–5.44
270°
275°
280°
285°
290°
295°
–0.76
–0.93
–1.15
–0.77
–0.59
–0.77
–1.59
–1.47
–1.12
–1.46
–1.20
–0.63
–1.12
–1.39
–1.33
–0.76
–0.86
–0.60
–2.30
–1.46
–1.04
–0.89
–0.98
–1.51
–2.33
–2.27
–2.10
–2.71
–1.70
–1.70
–2.45
–2.75
–1.94
–2.04
–1.86
–1.93
–3.19
–3.05
–2.60
–2.77
–2.51
–2.00
–3.33
–2.78
–3.20
–2.92
–2.24
–2.19
–3.06
–3.78
–3.33
–2.64
–2.56
–1.98
–4.76
–4.09
–3.82
–3.80
–2.96
–2.40
–4.66
–4.77
–4.62
–3.42
–3.12
–3.45
–5.41
–5.20
–3.84
–3.43
–3.69
–3.08
300°
305°
310°
315°
320°
325°
–0.61
–0.17
0.00
–0.24
–0.38
–0.21
–0.80
–0.89
–0.39
–0.21
–0.50
–0.73
–0.28
–0.71
–0.63
0.00
0.13
–0.07
–0.60
–0.35
–0.48
–0.45
–0.65
–0.49
–1.58
–1.93
–1.31
–1.18
–1.08
–0.63
–1.39
–1.36
–1.14
–0.86
–0.21
–0.27
–1.95
–1.19
–1.25
–0.68
–1.16
–0.91
–1.60
–1.16
–1.37
–1.32
–0.59
–0.63
–1.38
–2.01
–1.25
–0.92
–0.89
–0.68
–3.08
–2.03
–2.10
–1.84
–1.33
–0.93
–2.57
–2.73
–1.93
–1.63
–1.86
–1.43
–2.65
–2.11
–2.14
–1.79
–1.08
–0.90
330°
335°
340°
345°
350°
355°
0.08
0.25
0.27
0.19
0.10
0.03
–0.51
–0.13
0.10
0.16
0.11
0.04
–0.07
0.06
0.13
0.12
0.06
0.02
0.05
0.37
0.37
0.24
0.11
0.05
–0.65
–0.83
–0.69
–0.36
–0.13
–0.02
–0.30
0.00
0.16
0.10
0.01
0.00
–0.24
–0.22
–0.34
–0.28
–0.13
–0.03
–0.56
–0.31
–0.26
–0.24
–0.14
–0.03
–0.48
–0.01
0.12
–0.03
–0.12
–0.06
–1.18
–1.10
–0.64
–0.28
–0.08
0.02
–0.68
–0.39
–0.46
–0.48
–0.29
–0.09
–0.70
–0.20
–0.15
–0.13
–0.02
0.03
BE171211.book Page 81 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
81
Table A.25 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189) measured in
a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to the display, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.00
–0.02
–0.04
–0.08
–0.29
–0.62
0.01
–0.04
–0.15
–0.27
–0.42
–0.77
0.01
–0.06
–0.24
–0.45
–0.48
–0.72
0.01
–0.04
–0.12
–0.16
–0.43
–0.78
0.01
–0.03
–0.18
–0.29
–0.33
–0.72
0.05
0.06
0.00
–0.28
–0.71
–1.06
0.00
–0.03
–0.26
–0.49
–0.86
–1.28
–0.01
–0.16
–0.23
–0.59
–0.83
–1.11
–0.09
–0.06
–0.30
–0.34
–0.87
–0.94
–0.01
–0.17
–0.32
–0.63
–0.89
–1.44
0.02
–0.12
–0.24
–0.45
–0.85
–1.25
30°
35°
40°
45°
50°
55°
–0.83
–0.98
–1.36
–1.62
–2.05
–2.59
–0.98
–1.41
–1.75
–2.01
–2.55
–2.84
–1.23
–1.26
–1.73
–2.07
–2.34
–3.02
–1.24
–1.67
–2.44
–2.59
–3.04
–3.45
–0.80
–1.22
–1.50
–2.07
–2.95
–3.51
–1.42
–1.92
–2.25
–2.92
–3.08
–3.88
–1.54
–2.21
–2.57
–3.07
–3.50
–4.55
–1.71
–2.20
–2.86
–3.28
–4.18
–4.03
–1.50
–1.95
–2.64
–3.29
–4.56
–5.20
–2.07
–2.66
–3.16
–3.69
–4.52
–5.49
–1.90
–2.60
–3.47
–4.21
–4.81
–5.72
60°
65°
70°
75°
80°
85°
–2.87
–3.64
–3.69
–4.29
–4.17
–4.99
–3.37
–3.84
–4.49
–4.66
–5.23
–5.30
–3.42
–3.87
–4.35
–5.09
–5.38
–5.76
–4.07
–4.69
–5.28
–5.51
–6.16
–6.72
–3.82
–4.28
–4.98
–5.79
–6.06
–6.34
–4.58
–5.24
–5.89
–6.62
–7.47
–7.78
–5.24
–5.85
–6.56
–7.25
–8.09
–8.57
–5.49
–6.74
–6.81
–7.94
–8.10
–8.75
–5.41
–6.24
–7.77
–8.08
–8.70
–8.98
–6.32
–6.91
–8.05
–9.09
–9.69
–10.50
–6.85
–7.88
–8.47
–9.33
–10.70
–11.26
90°
95°
100°
105°
110°
115°
–5.13
–5.88
–6.16
–6.59
–6.59
–6.81
–6.19
–6.73
–6.38
–6.72
–6.77
–7.23
–6.28
–6.85
–8.06
–7.88
–8.03
–8.12
–6.96
–7.66
–8.01
–7.99
–8.18
–7.87
–7.32
–7.45
–7.79
–9.35
–9.28
–9.07
–8.04
–8.70
–9.23
–9.53
–9.54
–10.14
–9.08
–9.68
–10.11
–10.96
–11.88
–12.13
–9.75
–9.95
–9.80
–11.14
–10.89
–10.58
–10.19
–11.57
–11.90
–12.13
–13.06
–13.09
–10.84
–12.44
–12.58
–12.74
–13.69
–14.83
–12.29
–13.15
–13.79
–14.02
–14.67
–15.16
120°
125°
130°
135°
140°
145°
–6.45
–7.04
–7.09
–7.19
–7.44
–6.17
–7.70
–8.54
–7.90
–7.44
–8.28
–7.81
–8.36
–7.98
–7.76
–8.23
–9.20
–8.52
–8.77
–8.91
–9.54
–9.61
–9.85
–9.94
–9.27
–9.91
–10.65
–9.22
–9.10
–9.82
–9.46
–10.36
–10.72
–10.11
–10.29
–11.37
–11.63
–11.49
–11.77
–12.06
–11.97
–13.16
–11.84
–12.30
–12.77
–14.25
–13.51
–12.92
–13.52
–12.33
–13.04
–13.91
–12.81
–13.42
–13.83
–13.83
–15.40
–14.87
–13.94
–14.35
–16.29
–15.14
–15.52
–16.09
–16.42
–16.92
150°
155°
160°
165°
170°
175°
–5.59
–6.04
–4.44
–7.01
–10.86
–7.78
–5.81
–7.33
–5.04
–7.24
–12.34
–8.86
–6.24
–7.87
–5.79
–7.00
–12.88
–9.99
–7.40
–8.46
–6.98
–7.60
–13.14
–11.40
–8.09
–8.33
–7.42
–7.32
–12.91
–11.92
–9.82
–9.02
–9.05
–8.43
–13.37
–13.35
–11.29
–9.40
–10.59
–9.22
–14.43
–14.24
–11.31
–9.42
–11.52
–9.16
–16.42
–14.54
–12.15
–10.73
–12.40
–10.85
–15.94
–15.74
–15.16
–12.81
–13.50
–11.83
–15.44
–19.38
–16.89
–13.79
–13.72
–13.07
–15.92
–20.09
180°
185°
190°
195°
200°
205°
–6.28
–7.62
–10.75
–7.18
–4.32
–5.58
–7.07
–8.57
–11.84
–7.39
–4.89
–6.79
–7.80
–9.34
–12.21
–7.11
–5.43
–7.72
–8.91
–10.57
–12.85
–7.91
–6.98
–8.93
–9.44
–11.28
–13.31
–7.89
–7.79
–8.91
–10.76
–12.91
–13.96
–9.13
–9.49
–9.53
–11.51
–13.44
–14.89
–10.11
–10.69
–9.86
–11.50
–14.78
–13.60
–10.67
–11.07
–10.56
–13.05
–16.88
–15.06
–10.84
–12.03
–10.74
–14.53
–17.36
–17.19
–12.45
–13.43
–12.59
–16.22
–19.99
–16.98
–13.47
–13.50
–14.28
210°
215°
220°
225°
230°
235°
–5.78
–6.83
–7.82
–7.09
–6.49
–6.52
–6.34
–8.19
–8.93
–6.86
–7.12
–8.03
–7.16
–9.33
–9.41
–7.14
–7.22
–8.27
–8.38
–9.95
–9.28
–8.44
–8.69
–9.69
–9.10
–9.53
–8.25
–8.62
–10.23
–10.55
–10.37
–10.65
–9.53
–9.99
–10.95
–9.93
–11.15
–11.92
–10.98
–11.55
–12.22
–10.29
–10.62
–11.25
–11.49
–12.16
–12.03
–9.81
–12.04
–12.80
–11.40
–13.23
–11.24
–12.16
–13.95
–14.66
–14.13
–15.92
–14.19
–14.14
–16.53
–15.95
–16.21
–16.90
–14.62
–14.76
240°
245°
250°
255°
260°
265°
–6.91
–6.36
–6.72
–5.93
–6.05
–5.63
–7.99
–6.98
–6.29
–6.24
–6.30
–6.45
–8.10
–8.00
–6.95
–7.20
–7.72
–6.91
–8.19
–7.02
–7.45
–8.35
–8.07
–6.72
–8.72
–8.17
–9.58
–8.72
–7.02
–6.70
–8.84
–9.67
–10.08
–9.26
–8.24
–8.71
–10.10
–11.66
–10.82
–9.78
–9.62
–8.98
–11.47
–11.83
–11.41
–11.00
–9.83
–9.19
–13.95
–12.35
–12.04
–11.61
–11.21
–9.87
–14.52
–13.65
–13.24
–12.60
–12.17
–11.98
–16.43
–14.68
–14.23
–13.35
–13.07
–12.84
270°
275°
280°
285°
290°
295°
–5.42
–4.22
–3.75
–4.31
–3.74
–3.01
–5.49
–4.65
–5.27
–4.69
–3.86
–3.38
–5.32
–5.68
–5.45
–4.37
–3.98
–4.17
–6.75
–6.79
–5.50
–5.13
–5.77
–4.32
–7.66
–6.00
–5.49
–6.19
–4.37
–3.68
–7.58
–6.87
–7.48
–5.91
–5.24
–5.15
–8.24
–8.27
–7.39
–6.43
–6.13
–5.55
–9.72
–8.97
–7.91
–7.27
–6.28
–5.70
–9.97
–8.52
–8.15
–7.68
–6.71
–5.38
–10.67
–9.81
–9.59
–8.34
–7.52
–6.44
–11.39
–11.16
–10.09
–9.11
–8.53
–7.84
300°
305°
310°
315°
320°
325°
–2.44
–2.63
–2.02
–1.43
–1.03
–0.70
–3.36
–2.76
–2.16
–1.53
–1.36
–1.50
–3.21
–2.36
–1.96
–2.14
–2.04
–1.10
–3.36
–3.41
–3.56
–2.47
–1.86
–1.39
–3.81
–3.62
–2.38
–1.77
–1.49
–1.53
–4.41
–3.14
–3.14
–2.84
–1.95
–1.25
–4.46
–4.13
–3.46
–2.72
–2.23
–2.11
–4.91
–4.07
–3.63
–3.29
–2.52
–1.94
–5.16
–4.31
–3.66
–2.94
–2.23
–1.66
–6.05
–5.27
–4.27
–3.34
–2.90
–2.25
–6.70
–5.36
–4.63
–3.98
–3.15
–2.45
330°
335°
340°
345°
350°
355°
–0.52
–0.61
–0.54
–0.17
–0.01
0.01
–1.14
–0.79
–0.29
–0.17
–0.12
–0.02
–0.84
–0.25
–0.02
0.00
0.00
0.00
–1.20
–1.26
–0.97
–0.47
–0.19
–0.04
–0.68
–0.11
0.23
0.04
–0.09
–0.04
–1.22
–1.05
–0.98
–0.55
–0.22
–0.05
–1.58
–0.94
–0.52
–0.26
–0.06
–0.01
–1.25
–0.88
–0.80
–0.39
–0.02
0.04
–1.26
–0.83
–0.84
–0.39
–0.02
0.02
–1.70
–1.21
–0.88
–0.50
–0.25
–0.01
–1.79
–1.09
–0.58
–0.34
–0.14
0.11
BE171211.book Page 82 Thursday, May 27, 2004 1:01 PM
82
Hand-held Analyzer Type 2250 – Instruction Manual
Table A.26 Sensitivity variations of Hand-held Analyzer Type 2250 (including Microphone Type 4189) at sound
incidence angles within ±θ ° from the reference direction.
Nominal
Frequency
Exact
Frequency
Max Variation
± 30°
Max Variation Max Variation
± 90°
± 150°
500 Hz
630 Hz
501.187 Hz
630.957 Hz
0.06
0.10
0.36
0.26
0.50
0.59
800 Hz
1000 Hz
1250 Hz
794.328 Hz
1000 Hz
1258.93 Hz
0.06
0.05
0.07
0.42
0.47
0.28
0.60
0.89
1.12
1600 Hz
2000 Hz
2240 Hz
2500 Hz
1584.89 Hz
1995.26 Hz
2238.72 Hz
2511.89 Hz
0.17
0.31
0.16
0.36
0.77
0.86
1.01
1.07
1.18
1.47
1.60
1.77
2800 Hz
3150 Hz
3550 Hz
4000 Hz
2818.38 Hz
3162.28 Hz
3548.13 Hz
3981.07 Hz
0.14
0.50
0.22
0.27
0.89
1.26
1.36
1.62
1.91
1.80
1.99
2.29
4500 Hz
5000 Hz
5600 Hz
6300 Hz
4466.84 Hz
5011.87 Hz
5623.41 Hz
6309.57 Hz
0.67
0.41
0.38
0.84
2.05
1.52
2.68
2.92
2.60
2.77
3.42
4.24
7100 Hz
8000 Hz
8500 Hz
9000 Hz
7079.46 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
0.59
0.48
0.66
0.73
2.91
3.48
3.64
3.98
4.56
5.31
5.67
6.35
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
1.23
0.88
0.82
0.88
4.77
5.23
5.76
5.59
6.91
7.54
8.10
8.16
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
1.15
1.24
1.55
1.03
6.20
6.29
7.02
7.89
9.41
9.94
10.71
11.34
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
1.59
1.59
1.76
1.59
8.10
9.09
10.02
10.28
13.30
13.17
14.80
15.72
19000 Hz
20000 Hz
18836.5 Hz
19952.6 Hz
2.08
2.07
11.44
12.40
17.84
18.15
BE171211.book Page 83 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
83
Table A.27 Influence of Windscreen UA 1650 on directional response of Hand-held Analyzer Type 2250 (including
Microphone Type 4189), or Microphone Type 4189 only, with Windscreen UA 1650 fitted, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1000 Hz
1250 Hz
1600 Hz
2000 Hz
2240 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
0.00
0.02
–0.01
0.02
0.03
0.00
–0.03
0.00
0.00
0.02
–0.02
–0.01
–0.01
–0.01
0.00
–0.01
0.00
–0.01
–0.01
0.00
–0.01
–0.01
–0.01
–0.01
0.00
0.00
0.00
–0.01
–0.01
–0.02
0.00
0.00
0.00
0.00
0.00
–0.01
–0.01
–0.01
–0.01
–0.01
–0.02
–0.03
–0.01
–0.01
–0.01
–0.01
–0.02
–0.02
–0.01
–0.01
–0.01
–0.02
–0.02
–0.03
–0.02
–0.01
0.00
–0.01
–0.01
–0.01
–0.01
–0.01
–0.01
0.00
–0.01
–0.01
–0.02
–0.01
–0.01
–0.01
–0.02
–0.02
30°
35°
40°
45°
50°
55°
0.04
–0.04
0.00
–0.03
–0.02
0.01
–0.04
0.00
–0.03
–0.02
–0.02
–0.06
–0.02
–0.02
–0.03
–0.04
–0.04
–0.04
–0.01
–0.02
–0.02
–0.02
–0.03
–0.03
–0.02
–0.04
–0.04
–0.05
–0.06
–0.07
–0.02
–0.02
–0.03
–0.04
–0.05
–0.07
–0.04
–0.05
–0.07
–0.09
–0.10
–0.12
–0.03
–0.03
–0.04
–0.05
–0.07
–0.09
–0.04
–0.05
–0.06
–0.07
–0.08
–0.09
–0.01
–0.01
–0.01
–0.02
–0.02
–0.04
0.00
0.00
0.00
–0.01
0.00
0.00
–0.01
0.00
0.01
0.02
0.01
0.02
60°
65°
70°
75°
80°
85°
–0.01
–0.01
0.02
0.00
–0.02
–0.01
–0.03
–0.04
–0.05
–0.05
–0.03
–0.05
–0.04
–0.05
–0.06
–0.06
–0.04
–0.05
–0.04
–0.04
–0.05
–0.06
–0.06
–0.07
–0.08
–0.08
–0.09
–0.10
–0.11
–0.11
–0.08
–0.10
–0.12
–0.13
–0.14
–0.15
–0.13
–0.14
–0.16
–0.18
–0.20
–0.23
–0.11
–0.13
–0.15
–0.16
–0.18
–0.19
–0.11
–0.12
–0.16
–0.18
–0.19
–0.21
–0.05
–0.06
–0.07
–0.09
–0.12
–0.14
0.00
–0.02
–0.03
–0.04
–0.05
–0.08
0.03
0.04
0.04
0.02
0.01
0.00
90°
95°
100°
105°
110°
115°
0.02
0.00
–0.07
–0.01
–0.01
–0.03
–0.05
–0.05
–0.03
–0.05
–0.05
–0.04
–0.06
–0.06
–0.07
–0.07
–0.06
–0.06
–0.07
–0.07
–0.07
–0.08
–0.08
–0.07
–0.12
–0.11
–0.12
–0.12
–0.12
–0.12
–0.16
–0.17
–0.18
–0.18
–0.18
–0.17
–0.24
–0.25
–0.25
–0.26
–0.26
–0.26
–0.22
–0.24
–0.25
–0.25
–0.25
–0.25
–0.23
–0.25
–0.26
–0.26
–0.25
–0.26
–0.15
–0.16
–0.19
–0.19
–0.19
–0.18
–0.10
–0.11
–0.13
–0.16
–0.16
–0.14
–0.03
–0.05
–0.06
–0.08
–0.10
–0.10
120°
125°
130°
135°
140°
145°
–0.05
–0.01
–0.02
–0.01
–0.03
0.03
–0.05
–0.06
–0.06
–0.06
–0.06
–0.07
–0.07
–0.06
–0.07
–0.07
–0.07
–0.07
–0.07
–0.07
–0.07
–0.07
–0.07
–0.07
–0.13
–0.13
–0.12
–0.12
–0.12
–0.11
–0.17
–0.17
–0.17
–0.16
–0.16
–0.17
–0.26
–0.26
–0.26
–0.25
–0.25
–0.24
–0.25
–0.24
–0.23
–0.22
–0.21
–0.22
–0.27
–0.26
–0.25
–0.24
–0.22
–0.22
–0.18
–0.18
–0.17
–0.15
–0.14
–0.14
–0.13
–0.13
–0.13
–0.11
–0.09
–0.08
–0.07
–0.06
–0.05
–0.04
–0.01
0.00
150°
155°
160°
165°
170°
175°
–0.07
–0.03
–0.06
–0.01
–0.02
–0.01
–0.03
–0.05
–0.05
–0.06
–0.06
–0.05
–0.05
–0.06
–0.06
–0.06
–0.05
–0.05
–0.07
–0.07
–0.07
–0.08
–0.07
–0.08
–0.11
–0.11
–0.10
–0.09
–0.10
–0.10
–0.16
–0.16
–0.16
–0.15
–0.15
–0.15
–0.23
–0.22
–0.21
–0.20
–0.20
–0.20
–0.21
–0.20
–0.19
–0.18
–0.18
–0.18
–0.22
–0.21
–0.20
–0.19
–0.18
–0.18
–0.13
–0.12
–0.10
–0.09
–0.08
–0.08
–0.07
–0.06
–0.05
–0.04
–0.03
–0.02
0.01
0.02
0.03
0.05
0.07
0.07
180°
185°
190°
195°
200°
205°
–0.05
–0.03
–0.04
–0.05
–0.04
–0.04
–0.04
–0.06
–0.05
–0.05
–0.04
–0.04
–0.05
–0.05
–0.06
–0.06
–0.05
–0.06
–0.07
–0.07
–0.08
–0.07
–0.07
–0.07
–0.10
–0.10
–0.09
–0.10
–0.10
–0.10
–0.15
–0.15
–0.15
–0.15
–0.15
–0.16
–0.20
–0.20
–0.20
–0.21
–0.21
–0.22
–0.17
–0.18
–0.18
–0.18
–0.19
–0.20
–0.18
–0.18
–0.18
–0.18
–0.19
–0.20
–0.08
–0.08
–0.08
–0.09
–0.10
–0.11
–0.02
–0.02
–0.03
–0.04
–0.05
–0.06
0.07
0.07
0.06
0.06
0.04
0.03
210°
215°
220°
225°
230°
235°
–0.06
–0.01
–0.02
–0.03
–0.20
–0.01
–0.05
–0.04
–0.07
–0.04
0.03
–0.05
–0.05
–0.06
–0.05
–0.05
–0.06
–0.06
–0.06
–0.07
–0.06
–0.07
–0.06
–0.07
–0.10
–0.11
–0.11
–0.11
–0.12
–0.12
–0.16
–0.16
–0.16
–0.17
–0.16
–0.17
–0.22
–0.23
–0.23
–0.24
–0.24
–0.25
–0.21
–0.21
–0.21
–0.22
–0.23
–0.23
–0.20
–0.20
–0.21
–0.22
–0.24
–0.25
–0.12
–0.13
–0.15
–0.16
–0.17
–0.17
–0.07
–0.08
–0.09
–0.11
–0.13
–0.13
0.01
–0.01
–0.03
–0.05
–0.05
–0.06
240°
245°
250°
255°
260°
265°
0.01
0.01
0.01
–0.06
0.01
–0.02
–0.05
–0.07
–0.06
–0.01
–0.04
–0.05
–0.06
–0.05
–0.04
–0.04
–0.04
–0.05
–0.07
–0.07
–0.07
–0.07
–0.07
–0.07
–0.12
–0.12
–0.12
–0.12
–0.12
–0.11
–0.17
–0.17
–0.17
–0.17
–0.17
–0.16
–0.26
–0.26
–0.26
–0.25
–0.24
–0.24
–0.23
–0.23
–0.23
–0.23
–0.24
–0.23
–0.26
–0.26
–0.25
–0.25
–0.25
–0.24
–0.17
–0.18
–0.19
–0.20
–0.19
–0.15
–0.14
–0.16
–0.17
–0.16
–0.13
–0.11
–0.09
–0.12
–0.12
–0.09
–0.07
–0.05
270°
275°
280°
285°
290°
295°
0.00
0.02
0.08
–0.01
0.00
0.01
–0.05
–0.04
–0.07
–0.03
–0.03
–0.04
–0.03
–0.05
–0.04
–0.03
–0.04
–0.03
–0.07
–0.06
–0.05
–0.05
–0.04
–0.04
–0.11
–0.10
–0.10
–0.10
–0.09
–0.09
–0.16
–0.15
–0.14
–0.13
–0.11
–0.10
–0.23
–0.22
–0.20
–0.18
–0.15
–0.13
–0.21
–0.19
–0.16
–0.14
–0.13
–0.12
–0.22
–0.19
–0.17
–0.16
–0.14
–0.12
–0.13
–0.12
–0.11
–0.08
–0.06
–0.04
–0.11
–0.09
–0.05
–0.02
–0.02
–0.02
–0.02
0.01
0.01
0.02
0.03
0.04
300°
305°
310°
315°
320°
325°
0.01
0.00
0.10
0.01
0.00
0.04
–0.03
–0.03
–0.07
–0.02
–0.02
0.00
–0.02
–0.02
–0.04
–0.03
0.00
–0.01
–0.04
–0.03
–0.03
–0.02
–0.02
–0.01
–0.08
–0.07
–0.06
–0.05
–0.04
–0.03
–0.08
–0.06
–0.05
–0.04
–0.03
–0.02
–0.12
–0.11
–0.09
–0.07
–0.06
–0.04
–0.11
–0.08
–0.06
–0.03
–0.02
–0.02
–0.09
–0.08
–0.07
–0.05
–0.04
–0.03
–0.03
–0.02
–0.01
0.01
0.01
0.01
–0.01
0.00
0.01
0.01
0.00
0.01
0.04
0.04
0.04
0.05
0.04
0.02
330°
335°
340°
345°
350°
355°
0.05
0.00
0.04
0.03
0.05
0.03
–0.02
0.00
–0.01
0.00
0.01
0.01
0.00
0.00
0.01
0.02
0.01
0.01
–0.01
0.00
–0.01
0.00
0.01
0.00
–0.02
–0.01
–0.01
–0.01
0.01
0.00
–0.01
–0.01
–0.01
0.00
0.00
0.01
–0.02
–0.01
–0.01
0.00
0.00
0.01
–0.01
–0.01
0.00
0.01
0.01
0.01
–0.02
0.00
0.00
0.01
0.01
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.01
0.02
0.02
0.02
0.01
0.01
0.00
0.00
0.00
0.00
0.01
0.01
BE171211.book Page 84 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
84
Table A.28 Influence of Windscreen UA 1650 on directional response of Hand-held Analyzer Type 2250 (including
Microphone Type 4189), or Microphone Type 4189 only, with Windscreen UA 1650 fitted, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
0°
5°
10°
15°
20°
25°
–0.02
–0.01
–0.01
–0.01
–0.02
–0.01
–0.02
–0.01
–0.01
–0.01
–0.02
–0.03
–0.02
–0.02
–0.02
–0.04
–0.07
–0.10
–0.01
–0.01
0.00
–0.01
–0.04
–0.05
–0.01
0.00
0.02
0.05
0.05
0.07
–0.01
–0.01
0.00
0.00
0.00
0.02
–0.01
–0.02
–0.03
–0.08
–0.15
–0.21
0.00
–0.01
–0.02
–0.07
–0.14
–0.23
–0.01
0.00
0.01
0.00
–0.04
–0.09
–0.01
0.00
0.03
0.06
0.10
0.12
10000 Hz 10600 Hz
–0.01
–0.01
0.02
0.06
0.10
0.15
–0.01
–0.04
–0.05
–0.08
–0.12
–0.09
30°
35°
40°
45°
50°
55°
0.00
0.01
0.00
–0.01
–0.01
0.01
–0.04
–0.07
–0.10
–0.12
–0.11
–0.12
–0.12
–0.16
–0.21
–0.25
–0.29
–0.32
–0.06
–0.09
–0.14
–0.19
–0.22
–0.27
0.08
0.09
0.09
0.08
0.07
0.03
0.06
0.11
0.17
0.25
0.26
0.27
–0.24
–0.28
–0.30
–0.24
–0.19
–0.10
–0.31
–0.39
–0.46
–0.54
–0.52
–0.45
–0.16
–0.26
–0.39
–0.49
–0.57
–0.61
0.13
0.07
–0.02
–0.14
–0.26
–0.35
0.21
0.26
0.28
0.22
0.13
0.03
–0.02
0.04
0.13
0.17
0.19
0.13
60°
65°
70°
75°
80°
85°
0.03
0.03
0.03
0.04
0.03
0.01
–0.12
–0.11
–0.13
–0.13
–0.13
–0.13
–0.34
–0.35
–0.38
–0.40
–0.42
–0.45
–0.34
–0.38
–0.40
–0.43
–0.39
–0.46
–0.03
–0.04
–0.10
–0.12
–0.17
–0.16
0.26
0.22
0.17
0.09
0.07
0.03
–0.05
–0.02
–0.04
–0.14
–0.27
–0.35
–0.39
–0.31
–0.29
–0.32
–0.38
–0.48
–0.56
–0.51
–0.43
–0.42
–0.45
–0.51
–0.41
–0.38
–0.37
–0.29
–0.27
–0.32
–0.06
–0.12
–0.11
–0.06
0.02
0.08
0.04
–0.05
–0.12
–0.09
–0.02
0.06
90°
95°
100°
105°
110°
115°
–0.01
–0.03
–0.07
–0.08
–0.10
–0.13
–0.15
–0.16
–0.21
–0.27
–0.30
–0.32
–0.46
–0.49
–0.52
–0.56
–0.63
–0.67
–0.51
–0.55
–0.57
–0.60
–0.69
–0.82
–0.22
–0.28
–0.29
–0.32
–0.33
–0.50
0.04
0.03
0.04
0.02
0.01
–0.04
–0.43
–0.45
–0.49
–0.49
–0.44
–0.49
–0.57
–0.60
–0.66
–0.74
–0.75
–0.78
–0.57
–0.61
–0.65
–0.72
–0.81
–0.84
–0.35
–0.39
–0.44
–0.49
–0.65
–0.69
–0.04
–0.08
–0.16
–0.24
–0.34
–0.44
0.09
–0.03
–0.13
–0.21
–0.29
–0.43
120°
125°
130°
135°
140°
145°
–0.12
–0.08
–0.06
–0.04
–0.02
0.01
–0.34
–0.32
–0.26
–0.22
–0.21
–0.19
–0.69
–0.69
–0.65
–0.59
–0.55
–0.52
–0.86
–0.85
–0.83
–0.75
–0.69
–0.65
–0.56
–0.63
–0.55
–0.49
–0.51
–0.49
–0.17
–0.30
–0.29
–0.25
–0.17
–0.17
–0.57
–0.74
–0.73
–0.64
–0.54
–0.49
–0.92
–1.14
–1.19
–1.04
–0.89
–0.76
–0.98
–1.27
–1.41
–1.26
–1.03
–0.86
–0.77
–0.99
–1.28
–1.22
–0.95
–0.76
–0.45
–0.63
–1.00
–1.02
–0.82
–0.63
–0.45
–0.53
–0.91
–1.11
–0.95
–0.81
150°
155°
160°
165°
170°
175°
0.03
0.04
0.05
0.08
0.10
0.11
–0.16
–0.13
–0.11
–0.08
–0.06
–0.06
–0.50
–0.50
–0.48
–0.43
–0.40
–0.40
–0.61
–0.60
–0.57
–0.56
–0.53
–0.52
–0.42
–0.40
–0.39
–0.34
–0.32
–0.31
–0.18
–0.13
–0.11
–0.07
0.02
0.05
–0.47
–0.37
–0.31
–0.26
–0.18
–0.13
–0.71
–0.58
–0.52
–0.44
–0.36
–0.31
–0.77
–0.67
–0.58
–0.52
–0.45
–0.40
–0.66
–0.56
–0.48
–0.43
–0.37
–0.32
–0.57
–0.49
–0.42
–0.40
–0.29
–0.22
–0.73
–0.72
–0.56
–0.54
–0.45
–0.33
180°
185°
190°
195°
200°
205°
0.10
0.10
0.09
0.08
0.06
0.04
–0.06
–0.07
–0.08
–0.10
–0.12
–0.15
–0.40
–0.40
–0.42
–0.43
–0.43
–0.45
–0.53
–0.54
–0.55
–0.55
–0.57
–0.60
–0.31
–0.31
–0.32
–0.34
–0.38
–0.39
0.04
0.04
0.03
0.03
–0.03
–0.07
–0.12
–0.12
–0.13
–0.17
–0.25
–0.32
–0.32
–0.33
–0.35
–0.40
–0.49
–0.59
–0.41
–0.42
–0.43
–0.47
–0.58
–0.66
–0.33
–0.35
–0.36
–0.41
–0.51
–0.52
–0.24
–0.25
–0.22
–0.35
–0.41
–0.36
–0.31
–0.31
–0.31
–0.44
–0.53
–0.51
210°
215°
220°
225°
230°
235°
0.02
–0.01
–0.04
–0.05
–0.06
–0.10
–0.17
–0.21
–0.23
–0.26
–0.31
–0.35
–0.52
–0.57
–0.60
–0.61
–0.67
–0.72
–0.66
–0.69
–0.69
–0.73
–0.78
–0.83
–0.40
–0.43
–0.48
–0.47
–0.49
–0.61
–0.08
–0.08
–0.11
–0.15
–0.26
–0.16
–0.36
–0.45
–0.50
–0.62
–0.79
–0.73
–0.62
–0.77
–0.85
–1.10
–1.24
–1.23
–0.71
–0.87
–1.02
–1.37
–1.40
–1.27
–0.59
–0.71
–0.87
–1.22
–1.23
–0.88
–0.46
–0.49
–0.73
–0.88
–0.88
–0.45
–0.62
–0.62
–0.84
–0.95
–0.71
–0.29
240°
245°
250°
255°
260°
265°
–0.14
–0.16
–0.14
–0.11
–0.09
–0.04
–0.36
–0.35
–0.33
–0.29
–0.23
–0.19
–0.75
–0.71
–0.64
–0.59
–0.53
–0.51
–0.86
–0.80
–0.69
–0.56
–0.56
–0.55
–0.52
–0.42
–0.26
–0.28
–0.26
–0.27
–0.07
0.07
0.08
0.05
0.05
0.12
–0.59
–0.52
–0.46
–0.56
–0.50
–0.46
–0.93
–0.85
–0.82
–0.78
–0.68
–0.62
–1.01
–0.91
–0.92
–0.80
–0.72
–0.69
–0.72
–0.73
–0.67
–0.53
–0.49
–0.45
–0.33
–0.39
–0.32
–0.24
–0.15
–0.08
–0.31
–0.32
–0.22
–0.16
–0.11
–0.08
270°
275°
280°
285°
290°
295°
–0.01
0.00
0.01
0.02
0.02
0.03
–0.19
–0.18
–0.16
–0.14
–0.13
–0.12
–0.47
–0.42
–0.41
–0.38
–0.37
–0.36
–0.53
–0.50
–0.41
–0.41
–0.41
–0.37
–0.17
–0.15
–0.15
–0.10
–0.11
–0.03
0.06
0.11
0.05
0.15
0.15
0.25
–0.43
–0.35
–0.25
–0.14
–0.03
–0.03
–0.59
–0.50
–0.40
–0.32
–0.31
–0.33
–0.63
–0.56
–0.48
–0.46
–0.48
–0.55
–0.37
–0.36
–0.31
–0.31
–0.39
–0.40
–0.07
0.03
0.01
–0.07
–0.10
–0.09
0.08
0.08
0.00
–0.06
–0.09
–0.01
300°
305°
310°
315°
320°
325°
0.04
0.03
0.02
0.01
0.02
0.03
–0.12
–0.11
–0.10
–0.09
–0.07
–0.03
–0.34
–0.31
–0.27
–0.25
–0.22
–0.17
–0.32
–0.25
–0.22
–0.18
–0.10
–0.03
–0.02
0.04
0.07
0.11
0.14
0.13
0.29
0.32
0.27
0.27
0.19
0.13
–0.03
–0.11
–0.17
–0.21
–0.25
–0.25
–0.40
–0.46
–0.50
–0.49
–0.46
–0.37
–0.59
–0.61
–0.57
–0.49
–0.38
–0.28
–0.40
–0.36
–0.25
–0.13
–0.02
0.06
–0.03
0.07
0.17
0.25
0.29
0.28
0.09
0.16
0.23
0.23
0.15
0.09
330°
335°
340°
345°
350°
355°
0.02
0.01
0.00
0.00
0.00
0.01
0.00
0.01
0.01
0.01
0.01
0.02
–0.12
–0.08
–0.05
–0.03
0.00
0.02
–0.01
0.00
0.00
0.00
0.01
0.00
0.11
0.10
0.06
0.04
0.02
0.01
0.11
0.07
0.03
0.02
0.01
0.01
–0.23
–0.18
–0.11
–0.06
–0.02
0.01
–0.27
–0.21
–0.13
–0.06
–0.02
0.00
–0.16
–0.09
–0.04
–0.01
0.01
0.01
0.13
0.13
0.12
0.09
0.05
0.03
0.25
0.20
0.15
0.11
0.06
0.03
0.03
–0.02
–0.03
–0.01
0.00
0.02
BE171211.book Page 85 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
85
Table A.29 Influence of Windscreen UA 1650 on directional response of Hand-held Analyzer Type 2250 (including
Microphone Type 4189), or Microphone Type 4189 only, with Windscreen UA 1650 fitted, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
–0.01
–0.03
–0.08
–0.16
–0.27
–0.39
–0.01
–0.02
–0.02
–0.03
–0.08
–0.17
–0.01
0.00
0.02
0.04
0.06
0.08
0.00
–0.01
–0.02
–0.03
–0.04
–0.04
–0.02
–0.05
–0.11
–0.17
–0.24
–0.24
–0.04
–0.06
–0.09
–0.13
–0.24
–0.41
–0.02
–0.02
0.02
0.08
0.09
0.08
–0.02
0.00
–0.04
–0.12
–0.16
–0.10
0.05
0.04
–0.01
–0.08
–0.26
–0.32
0.00
–0.02
0.00
–0.06
–0.17
–0.29
–0.01
–0.01
–0.05
–0.09
–0.17
–0.15
30°
35°
40°
45°
50°
55°
–0.45
–0.48
–0.45
–0.39
–0.32
–0.30
–0.29
–0.43
–0.53
–0.56
–0.53
–0.48
0.07
–0.01
–0.12
–0.23
–0.30
–0.30
–0.04
–0.05
–0.08
–0.16
–0.27
–0.37
–0.20
–0.11
–0.04
–0.02
–0.05
–0.15
–0.53
–0.62
–0.58
–0.53
–0.49
–0.52
0.00
–0.13
–0.22
–0.22
–0.22
–0.27
–0.05
–0.03
–0.09
–0.22
–0.27
–0.33
–0.33
–0.29
–0.15
–0.10
–0.21
–0.40
–0.45
–0.51
–0.40
–0.25
–0.27
–0.47
–0.19
–0.24
–0.32
–0.34
–0.33
–0.33
60°
65°
70°
75°
80°
85°
–0.35
–0.45
–0.54
–0.59
–0.53
–0.45
–0.47
–0.54
–0.66
–0.75
–0.77
–0.69
–0.30
–0.35
–0.42
–0.53
–0.62
–0.69
–0.36
–0.36
–0.45
–0.56
–0.66
–0.78
–0.27
–0.28
–0.21
–0.28
–0.43
–0.52
–0.61
–0.72
–0.74
–0.71
–0.80
–0.92
–0.34
–0.48
–0.58
–0.59
–0.63
–0.71
–0.35
–0.51
–0.60
–0.73
–0.68
–0.56
–0.47
–0.52
–0.63
–0.82
–0.93
–0.77
–0.64
–0.61
–0.65
–0.83
–0.92
–0.87
–0.45
–0.64
–0.72
–0.77
–0.77
–0.94
90°
95°
100°
105°
110°
115°
–0.41
–0.49
–0.60
–0.64
–0.69
–0.73
–0.68
–0.72
–0.82
–0.81
–0.73
–0.71
–0.63
–0.62
–0.70
–0.63
–0.46
–0.44
–0.88
–0.71
–0.57
–0.64
–0.60
–0.56
–0.57
–0.54
–0.42
–0.40
–0.61
–0.76
–0.90
–0.86
–0.84
–1.01
–1.34
–1.51
–0.64
–0.45
–0.52
–0.87
–1.02
–1.01
–0.60
–0.59
–0.57
–0.73
–0.80
–0.46
–0.95
–1.25
–1.12
–0.91
–0.76
–1.04
–1.02
–1.36
–1.19
–0.70
–1.02
–1.62
–1.09
–0.85
–0.64
–0.59
–1.06
–1.59
120°
125°
130°
135°
140°
145°
–0.73
–0.84
–1.24
–1.60
–1.51
–1.33
–0.77
–0.84
–1.28
–1.89
–1.72
–1.35
–0.58
–0.64
–0.89
–1.64
–1.55
–1.03
–0.73
–0.77
–0.85
–1.54
–1.73
–1.26
–0.86
–0.89
–0.84
–1.33
–1.82
–1.59
–1.34
–1.18
–1.07
–1.81
–2.65
–2.41
–0.79
–0.66
–0.63
–1.26
–2.78
–2.16
–0.56
–0.75
–0.62
–0.52
–2.44
–2.02
–1.60
–1.79
–1.45
–0.85
–1.88
–2.68
–1.93
–1.46
–0.95
–0.91
–2.80
–3.81
–1.04
–0.89
–1.06
–0.78
–0.77
–3.11
150°
155°
160°
165°
170°
175°
–1.20
–1.16
–0.96
–0.83
–0.75
–0.59
–1.12
–0.98
–0.78
–0.61
–0.56
–0.41
–0.66
–0.50
–0.34
–0.22
–0.18
–0.10
–0.88
–0.78
–0.73
–0.62
–0.52
–0.47
–1.38
–1.31
–1.24
–1.04
–0.91
–0.74
–2.05
–1.84
–1.57
–1.26
–1.09
–0.86
–1.36
–0.90
–0.64
–0.40
–0.26
–0.12
–1.25
–0.90
–1.01
–0.84
–0.77
–0.64
–2.41
–2.31
–2.16
–1.91
–1.62
–1.32
–2.82
–2.05
–1.72
–1.28
–0.91
–0.68
–1.84
–1.15
–1.05
–1.02
–0.69
–0.35
180°
185°
190°
195°
200°
205°
–0.55
–0.55
–0.58
–0.71
–0.87
–0.92
–0.35
–0.35
–0.39
–0.55
–0.68
–0.81
–0.08
–0.08
–0.11
–0.24
–0.32
–0.41
–0.48
–0.47
–0.46
–0.67
–0.66
–0.71
–0.75
–0.74
–0.79
–1.02
–1.05
–1.24
–0.83
–0.75
–0.88
–1.17
–1.24
–1.50
–0.06
0.10
–0.07
–0.25
–0.38
–0.62
–0.48
–0.46
–0.70
–0.84
–0.84
–0.86
–1.21
–1.12
–1.50
–1.77
–1.93
–2.05
–0.42
–0.30
–0.73
–0.87
–1.36
–1.64
–0.03
–0.12
–0.48
–0.71
–0.70
–0.83
210°
215°
220°
225°
230°
235°
–1.05
–1.15
–1.46
–1.57
–1.12
–0.72
–1.00
–1.25
–1.78
–1.98
–1.30
–0.93
–0.58
–1.04
–1.56
–1.51
–0.70
–0.78
–0.76
–1.16
–1.66
–1.32
–0.61
–0.68
–1.24
–1.47
–1.67
–1.12
–0.65
–0.69
–1.80
–2.25
–2.52
–1.53
–1.02
–1.20
–1.09
–2.01
–2.60
–1.01
–0.73
–0.80
–1.21
–2.05
–2.10
–0.45
–0.66
–0.92
–2.28
–2.46
–1.74
–0.64
–1.03
–1.26
–2.32
–3.47
–2.73
–1.25
–1.27
–1.69
–1.48
–2.67
–0.11
–0.34
–1.09
–0.76
240°
245°
250°
255°
260°
265°
–0.69
–0.75
–0.68
–0.62
–0.60
–0.48
–0.84
–0.79
–0.76
–0.83
–0.85
–0.74
–0.85
–0.62
–0.50
–0.64
–0.57
–0.49
–0.71
–0.58
–0.67
–0.63
–0.50
–0.53
–0.68
–0.60
–0.58
–0.37
–0.35
–0.40
–1.25
–1.29
–1.26
–1.00
–0.91
–0.85
–0.77
–0.80
–0.81
–0.72
–0.56
–0.54
–0.84
–0.58
–0.54
–0.54
–0.61
–0.81
–1.04
–0.86
–0.47
–0.46
–0.72
–0.87
–1.75
–1.61
–1.12
–0.86
–1.19
–1.26
–0.52
–0.68
–0.44
–0.83
–0.82
–0.74
270°
275°
280°
285°
290°
295°
–0.44
–0.48
–0.52
–0.56
–0.50
–0.40
–0.66
–0.64
–0.70
–0.66
–0.57
–0.48
–0.47
–0.55
–0.52
–0.43
–0.38
–0.37
–0.65
–0.61
–0.51
–0.51
–0.51
–0.44
–0.36
–0.31
–0.35
–0.30
–0.25
–0.30
–0.81
–0.83
–0.74
–0.69
–0.68
–0.65
–0.68
–0.74
–0.59
–0.43
–0.45
–0.38
–0.81
–0.77
–0.61
–0.57
–0.43
–0.39
–0.75
–0.64
–0.64
–0.56
–0.46
–0.49
–0.89
–0.82
–0.87
–0.78
–0.64
–0.58
–0.66
–0.63
–0.57
–0.63
–0.57
–0.50
300°
305°
310°
315°
320°
325°
–0.32
–0.26
–0.28
–0.36
–0.43
–0.47
–0.44
–0.48
–0.48
–0.54
–0.51
–0.41
–0.37
–0.36
–0.31
–0.23
–0.13
0.02
–0.42
–0.40
–0.29
–0.16
–0.09
–0.08
–0.27
–0.11
0.00
0.02
0.02
–0.05
–0.51
–0.40
–0.38
–0.45
–0.54
–0.56
–0.31
–0.28
–0.22
–0.22
–0.16
–0.10
–0.40
–0.29
–0.19
–0.13
–0.02
0.04
–0.49
–0.36
–0.21
–0.12
–0.15
–0.22
–0.57
–0.48
–0.27
–0.25
–0.35
–0.44
–0.44
–0.38
–0.36
–0.33
–0.28
–0.21
330°
335°
340°
345°
350°
355°
–0.44
–0.36
–0.26
–0.16
–0.06
–0.01
–0.27
–0.15
–0.04
0.02
0.03
0.03
0.10
0.14
0.11
0.09
0.07
0.03
–0.06
–0.07
–0.07
–0.03
–0.01
0.00
–0.11
–0.12
–0.13
–0.10
–0.03
0.02
–0.47
–0.38
–0.19
–0.10
–0.03
0.03
0.04
0.16
0.19
0.19
0.14
0.07
0.06
–0.03
–0.04
–0.08
–0.02
0.03
–0.31
–0.32
–0.19
–0.15
–0.01
–0.04
–0.40
–0.29
–0.14
–0.07
0.00
0.01
–0.16
–0.12
–0.09
–0.04
–0.03
0.02
BE171211.book Page 86 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
86
Table A.30
Hz.
Directional response for Microphone Type 4189 only, with Windscreen UA 1650 fitted, 500 Hz – 3550
Frequency
Angle
500 Hz
630 Hz
800 Hz
1000 Hz
1250 Hz
1600 Hz
2000 Hz
2240 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
0.00
0.02
–0.01
0.02
0.04
0.01
–0.03
0.00
0.00
0.02
–0.02
–0.01
–0.01
–0.02
–0.01
–0.02
–0.01
–0.02
–0.01
–0.02
–0.02
–0.03
–0.02
–0.04
0.00
–0.01
–0.02
–0.02
–0.04
–0.06
0.00
0.00
–0.01
–0.01
–0.03
–0.05
–0.01
–0.01
–0.01
–0.02
–0.04
–0.06
–0.01
–0.02
–0.02
–0.03
–0.05
–0.06
–0.01
–0.02
–0.02
–0.04
–0.07
–0.10
–0.02
–0.02
–0.03
–0.05
–0.08
–0.13
–0.01
–0.01
–0.02
–0.04
–0.07
–0.11
–0.02
–0.02
–0.02
–0.04
–0.08
–0.11
30°
35°
40°
45°
50°
55°
0.05
–0.04
0.00
–0.03
–0.03
0.00
–0.03
0.00
–0.04
–0.04
–0.04
–0.08
–0.04
–0.04
–0.06
–0.07
–0.08
–0.10
–0.05
–0.06
–0.06
–0.08
–0.09
–0.10
–0.07
–0.10
–0.11
–0.13
–0.16
–0.18
–0.07
–0.09
–0.13
–0.16
–0.20
–0.25
–0.08
–0.11
–0.15
–0.19
–0.24
–0.28
–0.08
–0.10
–0.12
–0.15
–0.19
–0.25
–0.13
–0.17
–0.21
–0.24
–0.28
–0.31
–0.17
–0.21
–0.26
–0.31
–0.37
–0.43
–0.15
–0.20
–0.27
–0.34
–0.40
–0.47
–0.15
–0.19
–0.24
–0.30
–0.38
–0.47
60°
65°
70°
75°
80°
85°
–0.03
–0.03
–0.01
–0.04
–0.06
–0.05
–0.07
–0.08
–0.09
–0.10
–0.09
–0.11
–0.10
–0.12
–0.13
–0.14
–0.13
–0.15
–0.12
–0.14
–0.16
–0.17
–0.18
–0.21
–0.21
–0.22
–0.25
–0.28
–0.30
–0.32
–0.28
–0.33
–0.36
–0.40
–0.43
–0.46
–0.33
–0.38
–0.43
–0.50
–0.55
–0.61
–0.30
–0.35
–0.40
–0.45
–0.51
–0.58
–0.36
–0.40
–0.47
–0.53
–0.58
–0.63
–0.48
–0.52
–0.56
–0.61
–0.66
–0.72
–0.54
–0.62
–0.69
–0.74
–0.78
–0.85
–0.54
–0.60
–0.69
–0.78
–0.85
–0.91
90°
95°
100°
105°
110°
115°
–0.03
–0.05
–0.12
–0.06
–0.07
–0.09
–0.12
–0.12
–0.11
–0.13
–0.13
–0.12
–0.16
–0.17
–0.18
–0.18
–0.18
–0.18
–0.22
–0.22
–0.24
–0.25
–0.26
–0.25
–0.34
–0.35
–0.36
–0.38
–0.38
–0.38
–0.49
–0.51
–0.54
–0.56
–0.56
–0.57
–0.65
–0.69
–0.72
–0.75
–0.76
–0.78
–0.64
–0.69
–0.73
–0.76
–0.78
–0.81
–0.70
–0.76
–0.81
–0.85
–0.88
–0.91
–0.77
–0.82
–0.88
–0.93
–0.97
–0.99
–0.90
–0.94
–0.99
–1.06
–1.10
–1.12
–0.98
–1.04
–1.09
–1.14
–1.19
–1.23
120°
125°
130°
135°
140°
145°
–0.11
–0.07
–0.08
–0.07
–0.08
–0.02
–0.14
–0.14
–0.14
–0.15
–0.14
–0.15
–0.19
–0.18
–0.19
–0.18
–0.18
–0.19
–0.25
–0.24
–0.25
–0.23
–0.22
–0.23
–0.39
–0.39
–0.37
–0.37
–0.36
–0.34
–0.57
–0.56
–0.55
–0.53
–0.52
–0.51
–0.78
–0.78
–0.77
–0.75
–0.72
–0.68
–0.82
–0.81
–0.79
–0.77
–0.73
–0.71
–0.94
–0.94
–0.92
–0.89
–0.85
–0.81
–1.02
–1.03
–1.02
–0.99
–0.95
–0.90
–1.13
–1.16
–1.17
–1.15
–1.10
–1.04
–1.24
–1.26
–1.27
–1.25
–1.20
–1.13
150°
155°
160°
165°
170°
175°
–0.12
–0.08
–0.10
–0.05
–0.06
–0.05
–0.10
–0.12
–0.12
–0.13
–0.12
–0.11
–0.16
–0.16
–0.16
–0.16
–0.14
–0.14
–0.21
–0.21
–0.20
–0.20
–0.20
–0.20
–0.32
–0.31
–0.29
–0.28
–0.28
–0.27
–0.48
–0.46
–0.44
–0.43
–0.42
–0.42
–0.65
–0.61
–0.57
–0.55
–0.54
–0.52
–0.66
–0.62
–0.58
–0.55
–0.53
–0.51
–0.76
–0.71
–0.66
–0.62
–0.59
–0.57
–0.84
–0.78
–0.71
–0.66
–0.62
–0.61
–0.96
–0.90
–0.82
–0.76
–0.71
–0.68
–1.06
–0.98
–0.89
–0.81
–0.75
–0.71
180°
185°
190°
195°
200°
205°
–0.09
–0.07
–0.09
–0.09
–0.09
–0.09
–0.10
–0.12
–0.11
–0.12
–0.11
–0.12
–0.14
–0.14
–0.15
–0.16
–0.15
–0.16
–0.19
–0.19
–0.19
–0.20
–0.20
–0.20
–0.28
–0.27
–0.28
–0.29
–0.29
–0.30
–0.41
–0.42
–0.42
–0.43
–0.45
–0.47
–0.52
–0.52
–0.54
–0.56
–0.58
–0.61
–0.50
–0.51
–0.52
–0.55
–0.58
–0.62
–0.57
–0.57
–0.59
–0.62
–0.66
–0.71
–0.60
–0.61
–0.63
–0.66
–0.71
–0.77
–0.67
–0.68
–0.71
–0.76
–0.82
–0.90
–0.71
–0.72
–0.76
–0.82
–0.90
–0.98
210°
215°
220°
225°
230°
235°
–0.11
–0.06
–0.07
–0.08
–0.25
–0.07
–0.13
–0.11
–0.15
–0.13
–0.06
–0.13
–0.16
–0.17
–0.16
–0.17
–0.18
–0.18
–0.20
–0.22
–0.21
–0.22
–0.23
–0.24
–0.32
–0.33
–0.35
–0.36
–0.38
–0.38
–0.49
–0.50
–0.52
–0.54
–0.55
–0.56
–0.64
–0.68
–0.71
–0.74
–0.76
–0.78
–0.67
–0.70
–0.74
–0.77
–0.80
–0.82
–0.75
–0.79
–0.84
–0.88
–0.91
–0.94
–0.84
–0.90
–0.96
–1.01
–1.03
–1.04
–0.97
–1.04
–1.10
–1.16
–1.18
–1.18
–1.07
–1.17
–1.24
–1.29
–1.30
–1.29
240°
245°
250°
255°
260°
265°
–0.05
–0.05
–0.05
–0.12
–0.04
–0.07
–0.14
–0.16
–0.15
–0.09
–0.12
–0.12
–0.19
–0.17
–0.16
–0.15
–0.15
–0.16
–0.23
–0.23
–0.24
–0.23
–0.22
–0.22
–0.39
–0.39
–0.38
–0.37
–0.37
–0.35
–0.57
–0.57
–0.57
–0.55
–0.54
–0.52
–0.79
–0.79
–0.78
–0.75
–0.72
–0.69
–0.81
–0.80
–0.78
–0.76
–0.74
–0.70
–0.94
–0.92
–0.90
–0.85
–0.81
–0.76
–1.02
–1.01
–0.98
–0.95
–0.89
–0.81
–1.17
–1.15
–1.12
–1.06
–0.98
–0.92
–1.28
–1.26
–1.21
–1.13
–1.08
–1.03
270°
275°
280°
285°
290°
295°
–0.05
–0.02
0.04
–0.05
–0.03
–0.02
–0.12
–0.11
–0.12
–0.09
–0.08
–0.08
–0.14
–0.15
–0.13
–0.12
–0.12
–0.10
–0.21
–0.19
–0.17
–0.16
–0.13
–0.13
–0.33
–0.31
–0.29
–0.27
–0.25
–0.23
–0.50
–0.47
–0.44
–0.41
–0.37
–0.33
–0.65
–0.61
–0.55
–0.49
–0.42
–0.36
–0.64
–0.57
–0.49
–0.43
–0.38
–0.33
–0.69
–0.61
–0.54
–0.49
–0.44
–0.39
–0.73
–0.67
–0.63
–0.58
–0.54
–0.49
–0.88
–0.83
–0.77
–0.72
–0.69
–0.64
–0.97
–0.91
–0.87
–0.81
–0.72
–0.62
300°
305°
310°
315°
320°
325°
–0.01
–0.01
0.09
0.01
0.00
0.05
–0.07
–0.05
–0.09
–0.04
–0.03
0.00
–0.08
–0.07
–0.08
–0.07
–0.03
–0.03
–0.11
–0.08
–0.08
–0.06
–0.04
–0.03
–0.20
–0.18
–0.16
–0.13
–0.10
–0.08
–0.29
–0.24
–0.20
–0.16
–0.13
–0.10
–0.31
–0.26
–0.22
–0.17
–0.13
–0.08
–0.27
–0.22
–0.17
–0.13
–0.11
–0.08
–0.34
–0.30
–0.27
–0.23
–0.20
–0.16
–0.46
–0.42
–0.37
–0.30
–0.25
–0.20
–0.56
–0.48
–0.40
–0.32
–0.25
–0.18
–0.52
–0.43
–0.34
–0.25
–0.20
–0.16
330°
335°
340°
345°
350°
355°
0.06
0.01
0.04
0.04
0.05
0.03
–0.02
0.01
0.00
0.00
0.01
0.02
–0.02
–0.01
0.00
0.01
0.01
0.01
–0.02
0.00
0.00
0.02
0.02
0.02
–0.06
–0.04
–0.02
–0.01
0.00
0.00
–0.07
–0.04
–0.03
–0.01
–0.01
0.01
–0.05
–0.03
–0.02
0.00
0.00
0.02
–0.06
–0.04
–0.03
–0.01
0.00
0.01
–0.13
–0.08
–0.06
–0.03
–0.01
0.00
–0.14
–0.09
–0.05
–0.02
0.00
0.01
–0.12
–0.07
–0.03
–0.01
0.01
0.02
–0.13
–0.09
–0.06
–0.02
0.00
0.02
BE171211.book Page 87 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
Table A.31
87
Directional response for Microphone Type 4189 only, with Windscreen UA 1650 fitted, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
0°
5°
10°
15°
20°
25°
–0.02
–0.02
–0.04
–0.06
–0.11
–0.16
–0.02
–0.02
–0.04
–0.08
–0.16
–0.26
–0.02
–0.02
–0.05
–0.08
–0.15
–0.25
–0.01
–0.02
–0.05
–0.11
–0.21
–0.31
–0.01
0.00
0.00
–0.01
–0.06
–0.12
–0.01
–0.01
–0.03
–0.10
–0.20
–0.34
–0.01
–0.02
–0.10
–0.23
–0.41
–0.61
0.00
–0.02
–0.07
–0.19
–0.35
–0.58
–0.01
–0.01
–0.08
–0.21
–0.42
–0.67
–0.01
–0.01
–0.02
–0.05
–0.12
–0.29
10000 Hz 10600 Hz
–0.01
–0.03
–0.09
–0.18
–0.29
–0.42
–0.01
–0.05
–0.11
–0.19
–0.34
–0.52
30°
35°
40°
45°
50°
55°
–0.21
–0.25
–0.33
–0.40
–0.49
–0.57
–0.37
–0.48
–0.60
–0.71
–0.79
–0.90
–0.38
–0.55
–0.75
–0.96
–1.17
–1.34
–0.39
–0.48
–0.58
–0.72
–0.90
–1.19
–0.23
–0.37
–0.55
–0.77
–0.92
–1.06
–0.48
–0.63
–0.73
–0.80
–0.95
–1.14
–0.76
–0.90
–1.04
–1.18
–1.42
–1.69
–0.86
–1.18
–1.47
–1.72
–1.83
–1.97
–0.93
–1.20
–1.54
–1.92
–2.32
–2.61
–0.55
–0.95
–1.37
–1.72
–2.05
–2.50
–0.49
–0.61
–0.88
–1.38
–1.91
–2.19
–0.75
–1.06
–1.27
–1.43
–1.81
–2.53
60°
65°
70°
75°
80°
85°
–0.65
–0.74
–0.82
–0.89
–0.97
–1.06
–1.01
–1.13
–1.28
–1.40
–1.46
–1.52
–1.45
–1.55
–1.70
–1.92
–2.13
–2.30
–1.54
–1.76
–1.89
–1.96
–2.04
–2.30
–1.23
–1.46
–1.86
–2.21
–2.40
–2.44
–1.38
–1.58
–1.74
–2.03
–2.39
–2.78
–1.93
–2.12
–2.38
–2.75
–3.11
–3.38
–2.24
–2.52
–2.73
–2.95
–3.33
–3.82
–2.72
–2.96
–3.30
–3.53
–3.64
–4.00
–2.95
–3.19
–3.47
–3.92
–4.19
–4.19
–2.48
–2.97
–3.28
–3.53
–4.09
–4.43
–3.05
–3.29
–3.75
–4.06
–4.15
–4.67
90°
95°
100°
105°
110°
115°
–1.13
–1.20
–1.29
–1.33
–1.38
–1.44
–1.59
–1.67
–1.77
–1.87
–1.93
–1.97
–2.37
–2.44
–2.52
–2.59
–2.70
–2.76
–2.58
–2.78
–2.87
–2.91
–3.01
–3.15
–2.57
–2.81
–3.01
–3.14
–3.19
–3.36
–2.97
–3.08
–3.19
–3.35
–3.47
–3.57
–3.70
–3.97
–4.22
–4.37
–4.41
–4.53
–4.18
–4.39
–4.64
–4.93
–5.07
–5.19
–4.55
–4.89
–5.06
–5.29
–5.55
–5.68
–4.47
–5.09
–5.46
–5.63
–5.97
–6.14
–4.46
–4.76
–5.38
–5.72
–5.97
–6.22
–5.10
–5.26
–5.74
–6.22
–6.51
–6.85
120°
125°
130°
135°
140°
145°
–1.46
–1.46
–1.46
–1.46
–1.41
–1.33
–2.02
–2.03
–2.00
–1.97
–1.96
–1.88
–2.81
–2.84
–2.84
–2.82
–2.79
–2.72
–3.20
–3.21
–3.22
–3.18
–3.15
–3.08
–3.40
–3.46
–3.40
–3.39
–3.47
–3.46
–3.69
–3.78
–3.75
–3.74
–3.73
–3.80
–4.63
–4.76
–4.65
–4.51
–4.45
–4.47
–5.40
–5.62
–5.58
–5.32
–5.17
–5.12
–5.91
–6.21
–6.25
–5.97
–5.70
–5.58
–6.31
–6.59
–6.77
–6.55
–6.23
–6.08
–6.30
–6.56
–6.87
–6.68
–6.34
–6.20
–6.96
–7.12
–7.54
–7.54
–7.17
–7.03
150°
155°
160°
165°
170°
175°
–1.23
–1.13
–1.03
–0.93
–0.85
–0.81
–1.77
–1.63
–1.49
–1.36
–1.27
–1.22
–2.61
–2.48
–2.33
–2.17
–2.04
–1.98
–2.94
–2.77
–2.58
–2.42
–2.27
–2.18
–3.30
–3.13
–2.92
–2.69
–2.52
–2.43
–3.78
–3.58
–3.34
–3.08
–2.81
–2.66
–4.46
–4.23
–3.93
–3.61
–3.31
–3.12
–5.11
–4.87
–4.56
–4.21
–3.87
–3.67
–5.54
–5.36
–5.03
–4.67
–4.33
–4.11
–6.02
–5.83
–5.50
–5.12
–4.77
–4.52
–6.20
–6.05
–5.71
–5.34
–4.90
–4.62
–7.04
–6.98
–6.54
–6.11
–5.65
–5.29
180°
185°
190°
195°
200°
205°
–0.80
–0.82
–0.86
–0.94
–1.04
–1.15
–1.20
–1.24
–1.29
–1.38
–1.52
–1.66
–1.98
–2.00
–2.08
–2.19
–2.33
–2.49
–2.17
–2.22
–2.32
–2.45
–2.63
–2.82
–2.40
–2.44
–2.55
–2.72
–2.96
–3.15
–2.64
–2.69
–2.83
–3.01
–3.29
–3.54
–3.06
–3.11
–3.27
–3.53
–3.87
–4.20
–3.63
–3.70
–3.88
–4.18
–4.58
–4.96
–4.05
–4.13
–4.32
–4.66
–5.13
–5.50
–4.46
–4.55
–4.77
–5.15
–5.66
–5.96
–4.55
–4.65
–4.90
–5.42
–5.90
–6.09
–5.20
–5.32
–5.62
–6.18
–6.67
–6.84
210°
215°
220°
225°
230°
235°
–1.26
–1.36
–1.46
–1.49
–1.50
–1.50
–1.80
–1.93
–2.01
–2.04
–2.06
–2.07
–2.68
–2.83
–2.88
–2.88
–2.89
–2.89
–3.01
–3.13
–3.15
–3.17
–3.17
–3.17
–3.30
–3.40
–3.46
–3.40
–3.36
–3.44
–3.69
–3.74
–3.76
–3.73
–3.79
–3.68
–4.40
–4.51
–4.49
–4.55
–4.74
–4.75
–5.15
–5.26
–5.22
–5.43
–5.61
–5.65
–5.63
–5.70
–5.75
–6.12
–6.20
–6.12
–6.06
–6.09
–6.21
–6.56
–6.63
–6.39
–6.18
–6.13
–6.32
–6.44
–6.54
–6.26
–6.95
–6.89
–7.03
–7.16
–7.12
–6.80
240°
245°
250°
255°
260°
265°
–1.51
–1.48
–1.40
–1.33
–1.29
–1.21
–2.04
–1.97
–1.92
–1.85
–1.76
–1.70
–2.87
–2.79
–2.69
–2.61
–2.54
–2.49
–3.15
–3.08
–2.97
–2.87
–2.84
–2.71
–3.33
–3.25
–3.13
–3.11
–2.93
–2.72
–3.62
–3.53
–3.46
–3.32
–3.14
–3.00
–4.66
–4.56
–4.38
–4.34
–4.20
–3.99
–5.36
–5.23
–5.07
–4.91
–4.68
–4.36
–5.88
–5.72
–5.57
–5.33
–5.12
–4.87
–6.26
–6.08
–5.84
–5.64
–5.43
–5.00
–6.05
–5.86
–5.75
–5.63
–5.12
–4.57
–6.59
–6.45
–6.39
–6.04
–5.50
–5.25
270°
275°
280°
285°
290°
295°
–1.14
–1.08
–1.00
–0.90
–0.79
–0.69
–1.64
–1.57
–1.46
–1.36
–1.23
–1.12
–2.38
–2.21
–2.05
–1.87
–1.71
–1.59
–2.50
–2.26
–2.04
–1.96
–1.89
–1.69
–2.49
–2.43
–2.38
–2.13
–1.80
–1.41
–3.01
–2.72
–2.36
–1.95
–1.79
–1.58
–3.62
–3.28
–3.07
–2.76
–2.28
–2.01
–4.08
–3.79
–3.36
–2.87
–2.63
–2.54
–4.52
–4.04
–3.58
–3.45
–3.38
–3.08
–4.45
–4.15
–4.08
–3.94
–3.53
–3.13
–4.36
–4.28
–4.01
–3.52
–3.15
–2.87
–4.96
–4.56
–4.16
–3.95
–3.69
–3.24
300°
305°
310°
315°
320°
325°
–0.59
–0.51
–0.46
–0.40
–0.33
–0.26
–1.02
–0.91
–0.83
–0.71
–0.58
–0.44
–1.45
–1.30
–1.10
–0.91
–0.70
–0.53
–1.41
–1.10
–0.88
–0.72
–0.56
–0.44
–1.22
–1.06
–0.92
–0.70
–0.45
–0.28
–1.31
–1.00
–0.87
–0.77
–0.76
–0.68
–1.88
–1.76
–1.47
–1.14
–0.95
–0.84
–2.35
–1.99
–1.74
–1.62
–1.50
–1.23
–2.70
–2.52
–2.33
–1.99
–1.55
–1.17
–2.90
–2.55
–2.05
–1.62
–1.28
–0.96
–2.44
–2.04
–1.72
–1.36
–0.96
–0.66
–2.87
–2.44
–1.87
–1.48
–1.24
–0.96
330°
335°
340°
345°
350°
355°
–0.21
–0.16
–0.12
–0.09
–0.06
–0.04
–0.31
–0.20
–0.12
–0.05
–0.01
0.02
–0.36
–0.24
–0.15
–0.10
–0.06
–0.03
–0.36
–0.28
–0.18
–0.11
–0.04
–0.01
–0.17
–0.08
–0.06
–0.04
–0.04
–0.03
–0.50
–0.34
–0.21
–0.10
–0.03
0.02
–0.77
–0.65
–0.48
–0.32
–0.17
–0.09
–0.90
–0.61
–0.36
–0.17
–0.05
0.01
–0.86
–0.63
–0.42
–0.24
–0.12
–0.04
–0.63
–0.38
–0.20
–0.10
–0.06
–0.03
–0.47
–0.34
–0.20
–0.08
0.00
0.04
–0.69
–0.47
–0.32
–0.20
–0.11
–0.06
BE171211.book Page 88 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
88
Table A.32
Directional response for Microphone Type 4189 only, with Windscreen UA 1650 fitted, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
–0.01
–0.05
–0.18
–0.40
–0.69
–1.03
–0.01
–0.04
–0.12
–0.23
–0.40
–0.66
–0.01
–0.03
–0.08
–0.18
–0.38
–0.70
0.00
–0.05
–0.17
–0.34
–0.57
–0.83
–0.02
–0.09
–0.27
–0.51
–0.79
–1.02
–0.04
–0.10
–0.18
–0.33
–0.62
–1.15
–0.02
–0.06
–0.11
–0.21
–0.48
–0.85
–0.02
–0.05
–0.21
–0.50
–0.83
–1.13
0.05
–0.02
–0.23
–0.55
–1.10
–1.56
0.00
–0.07
–0.20
–0.51
–0.94
–1.42
–0.01
–0.02
–0.22
–0.52
–0.96
–1.34
30°
35°
40°
45°
50°
55°
–1.26
–1.47
–1.74
–2.16
–2.45
–2.64
–1.01
–1.53
–2.01
–2.32
–2.68
–3.21
–1.05
–1.40
–1.73
–2.23
–2.81
–3.21
–1.07
–1.43
–2.01
–2.61
–2.98
–3.55
–1.28
–1.63
–2.00
–2.33
–2.96
–3.68
–1.81
–2.41
–2.73
–3.23
–3.88
–4.35
–1.25
–1.68
–2.38
–3.10
–3.46
–4.18
–1.41
–1.82
–2.48
–3.14
–3.97
–4.88
–1.97
–2.46
–2.98
–3.42
–4.25
–5.15
–2.03
–2.81
–3.30
–3.66
–4.56
–5.33
–1.81
–2.57
–3.30
–4.10
–4.99
–5.73
60°
65°
70°
75°
80°
85°
–3.25
–4.03
–4.36
–4.84
–5.27
–5.33
–3.59
–4.02
–4.74
–5.10
–5.52
–6.15
–3.72
–4.47
–5.04
–5.75
–6.12
–6.33
–4.15
–4.46
–5.17
–5.92
–6.60
–7.32
–4.13
–4.94
–5.44
–6.09
–6.86
–7.30
–5.14
–5.57
–6.14
–6.89
–7.69
–8.74
–4.93
–5.74
–6.59
–7.14
–7.88
–8.48
–5.40
–6.44
–6.93
–7.81
–8.50
–9.40
–6.05
–6.70
–7.80
–8.79
–9.61
–9.92
–6.58
–7.46
–8.45
–9.20
–10.02
–11.02
–6.84
–7.84
–8.74
–9.85
–10.82
–11.79
90°
95°
100°
105°
110°
115°
–5.73
–6.18
–6.53
–6.92
–7.19
–7.51
–6.48
–6.71
–7.09
–7.58
–7.73
–7.94
–7.03
–7.61
–7.67
–7.99
–8.31
–8.37
–7.45
–7.98
–8.40
–8.39
–8.99
–9.17
–8.17
–8.27
–8.88
–9.14
–9.55
–10.36
–8.70
–9.42
–9.76
–10.59
–10.87
–11.66
–9.55
–9.37
–10.04
–11.03
–11.40
–11.61
–9.75
–10.67
–10.90
–11.58
–12.30
–11.96
–11.27
–12.16
–12.57
–12.75
–13.33
–13.84
–11.76
–13.08
–13.60
–13.38
–14.34
–15.42
–12.58
–13.27
–13.76
–14.36
–14.99
–16.53
120°
125°
130°
135°
140°
145°
–7.64
–7.76
–8.26
–8.47
–8.09
–7.87
–8.26
–8.27
–8.80
–9.39
–8.82
–8.30
–8.87
–8.90
–9.04
–9.97
–9.54
–8.65
–9.55
–9.82
–9.64
–10.49
–10.56
–9.58
–10.44
–10.91
–10.65
–11.09
–11.64
–10.90
–11.66
–11.70
–11.80
–12.21
–13.16
–12.55
–12.06
–11.76
–12.17
–12.53
–13.99
–13.10
–12.72
–13.00
–13.08
–13.01
–14.78
–14.07
–14.74
–15.46
–15.03
–14.61
–15.46
–16.11
–15.92
–16.05
–15.54
–15.67
–17.22
–18.34
–15.88
–16.25
–16.57
–16.43
–16.30
–18.37
150°
155°
160°
165°
170°
175°
–7.84
–7.76
–7.27
–6.72
–6.25
–5.84
–8.27
–8.22
–7.75
–7.08
–6.57
–6.15
–8.42
–8.45
–8.09
–7.45
–6.90
–6.51
–9.17
–9.32
–9.17
–8.57
–7.92
–7.49
–10.45
–10.58
–10.47
–9.77
–9.02
–8.42
–11.84
–11.75
–11.51
–10.72
–9.90
–9.18
–11.91
–11.58
–11.34
–10.58
–9.73
–9.07
–12.81
–12.61
–12.91
–12.18
–11.32
–10.62
–15.05
–15.01
–15.19
–14.46
–13.26
–12.31
–16.46
–15.43
–15.61
–14.86
–13.53
–12.53
–16.66
–15.33
–15.58
–15.60
–14.44
–13.37
180°
185°
190°
195°
200°
205°
–5.73
–5.88
–6.25
–6.81
–7.30
–7.52
–6.02
–6.18
–6.56
–7.13
–7.60
–7.94
–6.40
–6.55
–6.89
–7.43
–7.92
–8.23
–7.38
–7.49
–7.82
–8.54
–9.02
–9.18
–8.26
–8.36
–8.82
–9.67
–10.22
–10.34
–8.96
–9.04
–9.68
–10.67
–11.10
–11.21
–8.83
–8.90
–9.69
–10.54
–10.90
–11.10
–10.30
–10.56
–11.42
–12.15
–12.44
–12.42
–12.00
–12.16
–13.10
–13.99
–14.59
–14.47
–12.00
–12.07
–13.08
–14.06
–14.88
–14.88
–12.79
–13.21
–14.53
–15.78
–15.76
–15.89
210°
215°
220°
225°
230°
235°
–7.67
–7.67
–7.88
–8.16
–7.96
–7.51
–8.12
–8.21
–8.75
–9.17
–8.58
–8.14
–8.27
–8.57
–9.26
–9.41
–8.69
–8.72
–8.99
–9.40
–10.10
–9.91
–9.33
–9.24
–10.18
–10.51
–10.86
–10.60
–10.14
–10.03
–11.46
–11.94
–12.45
–11.74
–11.11
–11.30
–11.47
–12.45
–13.47
–11.96
–11.69
–11.69
–12.56
–13.76
–14.05
–12.63
–12.71
–12.97
–14.72
–15.30
–14.83
–13.99
–14.14
–14.60
–15.83
–17.22
–17.05
–15.52
–15.62
–15.94
–16.58
–18.31
–16.17
–16.31
–17.20
–16.51
240°
245°
250°
255°
260°
265°
–7.28
–7.29
–7.06
–6.64
–6.37
–6.02
–8.00
–7.86
–7.58
–7.30
–6.95
–6.49
–8.66
–8.35
–8.00
–7.70
–7.29
–7.16
–9.20
–8.99
–8.59
–8.20
–7.97
–7.57
–10.08
–9.64
–9.19
–8.79
–8.43
–7.99
–11.23
–10.88
–10.49
–10.04
–9.57
–9.10
–11.55
–11.05
–10.83
–10.51
–9.89
–9.16
–12.62
–11.83
–11.69
–11.25
–10.73
–10.65
–13.77
–13.41
–12.68
–12.22
–11.88
–11.63
–15.46
–15.13
–14.42
–13.46
–13.46
–12.90
–15.93
–15.77
–14.93
–14.89
–14.57
–13.74
270°
275°
280°
285°
290°
295°
–5.56
–5.30
–5.12
–4.70
–4.25
–3.79
–6.29
–5.95
–5.31
–4.91
–4.49
–3.89
–6.70
–6.05
–5.84
–5.44
–4.91
–4.48
–7.09
–6.92
–6.26
–5.75
–5.20
–4.40
–7.70
–6.89
–6.61
–6.04
–5.32
–5.04
–8.30
–8.30
–7.49
–6.61
–6.08
–5.29
–9.28
–8.39
–7.60
–6.97
–6.29
–5.66
–9.87
–9.43
–8.40
–7.54
–6.77
–6.28
–10.97
–9.75
–9.30
–8.50
–7.71
–6.68
–11.58
–11.05
–10.00
–9.33
–8.43
–7.58
–12.80
–11.99
–11.25
–10.18
–9.17
–8.40
300°
305°
310°
315°
320°
325°
–3.16
–2.63
–2.34
–1.98
–1.68
–1.49
–3.53
–3.11
–2.58
–2.34
–2.03
–1.49
–3.67
–3.18
–2.85
–2.21
–1.68
–1.38
–4.20
–3.62
–2.88
–2.59
–2.10
–1.47
–4.06
–3.53
–3.02
–2.27
–1.87
–1.62
–4.97
–4.17
–3.64
–3.19
–2.69
–2.29
–4.81
–4.19
–3.46
–3.05
–2.37
–1.72
–5.51
–4.78
–3.99
–3.10
–2.41
–1.80
–6.14
–5.20
–4.33
–3.53
–3.06
–2.45
–6.63
–5.47
–4.66
–3.80
–3.31
–2.86
–7.37
–6.38
–5.47
–4.60
–3.63
–2.94
330°
335°
340°
345°
350°
355°
–1.31
–1.03
–0.69
–0.37
–0.14
0.00
–0.96
–0.61
–0.38
–0.23
–0.12
–0.04
–1.10
–0.68
–0.34
–0.11
0.00
0.02
–1.04
–0.85
–0.65
–0.40
–0.19
–0.06
–1.26
–0.92
–0.66
–0.42
–0.17
–0.01
–1.74
–1.17
–0.62
–0.32
–0.13
0.00
–1.20
–0.74
–0.37
–0.13
–0.02
0.00
–1.37
–1.09
–0.72
–0.43
–0.16
0.00
–2.01
–1.64
–1.12
–0.67
–0.22
–0.07
–2.10
–1.49
–1.00
–0.60
–0.25
–0.05
–2.15
–1.56
–1.10
–0.65
–0.32
–0.07
BE171211.book Page 89 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
89
Table A.33 Sensitivity variations of Microphone Type 4189 only, with Windscreen UA 1650 fitted, at sound incidence angles within ±θ ° from the reference direction.
Nominal
Frequency
Exact
Frequency
Max Variation
± 30°
Max Variation Max Variation
± 90°
± 150°
500 Hz
630 Hz
501.187 Hz
630.957 Hz
0.07
0.06
0.15
0.15
0.35
0.18
800 Hz
1000 Hz
1250 Hz
794.328 Hz
1000 Hz
1258.93 Hz
0.05
0.07
0.07
0.17
0.25
0.34
0.21
0.28
0.40
1600 Hz
2000 Hz
2240 Hz
2500 Hz
1584.89 Hz
1995.26 Hz
2238.72 Hz
2511.89 Hz
0.08
0.10
0.09
0.15
0.51
0.67
0.66
0.71
0.58
0.81
0.83
0.96
2800 Hz
3150 Hz
3550 Hz
4000 Hz
2818.38 Hz
3162.28 Hz
3548.13 Hz
3981.07 Hz
0.19
0.17
0.17
0.23
0.79
0.92
1.00
1.15
1.06
1.20
1.31
1.53
4500 Hz
5000 Hz
5600 Hz
6300 Hz
4466.84 Hz
5011.87 Hz
5623.41 Hz
6309.57 Hz
0.39
0.40
0.40
0.24
1.67
2.40
2.59
2.58
2.09
2.91
3.24
3.47
7100 Hz
8000 Hz
8500 Hz
9000 Hz
7079.46 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
0.52
0.79
0.91
0.94
3.02
3.71
4.19
4.56
3.82
4.77
5.67
6.26
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
0.63
0.53
0.77
1.31
4.48
4.50
5.11
5.73
6.78
6.91
7.56
8.48
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
1.03
1.12
1.08
1.30
6.50
7.05
7.45
8.19
9.40
9.99
10.56
11.66
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
1.86
1.27
1.42
2.06
8.79
9.57
9.88
11.32
13.20
14.02
14.79
16.16
19000 Hz
20000 Hz
18836.5 Hz
19952.6 Hz
2.11
2.15
11.77
12.81
18.34
18.38
BE171211.book Page 90 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
90
Table A.34 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), with Windscreen UA 1650 fitted and measured in a plane parallel to the Hand-held Analyzer’s display, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1000 Hz
1250 Hz
1600 Hz
2000 Hz
2240 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
–0.01
0.00
–0.02
–0.01
0.01
–0.02
–0.01
0.01
0.01
0.02
0.02
0.06
0.00
–0.01
0.00
–0.03
0.00
0.01
0.00
0.00
0.00
0.01
0.00
–0.01
0.00
0.00
0.00
–0.02
–0.03
–0.02
–0.03
–0.03
–0.02
–0.03
–0.05
–0.09
–0.01
–0.02
–0.05
–0.12
–0.18
–0.26
–0.01
0.01
0.03
0.05
0.09
0.11
–0.03
–0.05
–0.09
–0.16
–0.22
–0.27
–0.05
–0.03
–0.01
0.01
0.05
0.05
–0.02
–0.03
–0.08
–0.16
–0.28
–0.40
–0.01
–0.02
–0.04
–0.05
–0.01
0.07
30°
35°
40°
45°
50°
55°
0.03
–0.06
–0.03
–0.08
–0.10
–0.11
0.04
0.10
0.09
0.12
0.13
0.13
0.00
0.01
0.02
0.05
0.09
0.12
–0.03
–0.04
–0.06
–0.08
–0.11
–0.12
–0.01
0.00
0.04
0.09
0.13
0.16
–0.16
–0.26
–0.40
–0.55
–0.70
–0.81
–0.35
–0.40
–0.40
–0.36
–0.30
–0.28
0.08
0.00
–0.14
–0.31
–0.45
–0.47
–0.29
–0.24
–0.15
–0.09
–0.14
–0.33
0.00
–0.12
–0.29
–0.42
–0.44
–0.35
–0.49
–0.51
–0.45
–0.42
–0.49
–0.67
0.14
0.14
0.01
–0.19
–0.32
–0.29
60°
65°
70°
75°
80°
85°
–0.16
–0.17
–0.21
–0.24
–0.29
–0.32
0.13
0.10
0.10
0.05
0.01
–0.04
0.18
0.20
0.25
0.27
0.29
0.28
–0.13
–0.11
–0.08
–0.02
0.06
0.12
0.17
0.16
0.11
0.05
0.01
0.02
–0.82
–0.77
–0.65
–0.54
–0.48
–0.49
–0.37
–0.57
–0.82
–1.01
–0.98
–0.79
–0.37
–0.27
–0.32
–0.57
–0.89
–1.04
–0.58
–0.70
–0.62
–0.50
–0.59
–0.94
–0.32
–0.45
–0.72
–0.87
–0.78
–0.69
–0.79
–0.77
–0.73
–0.91
–1.22
–1.29
–0.31
–0.47
–0.60
–0.56
–0.59
–0.91
90°
95°
100°
105°
110°
115°
–0.33
–0.37
–0.47
–0.47
–0.50
–0.50
–0.10
–0.16
–0.20
–0.27
–0.32
–0.37
0.23
0.17
0.08
–0.01
–0.09
–0.17
0.18
0.20
0.17
0.09
–0.04
–0.18
0.08
0.19
0.31
0.39
0.40
0.33
–0.55
–0.61
–0.60
–0.52
–0.40
–0.30
–0.59
–0.51
–0.57
–0.69
–0.72
–0.61
–0.90
–0.60
–0.41
–0.43
–0.58
–0.66
–1.24
–1.12
–0.74
–0.47
–0.50
–0.69
–0.91
–1.29
–1.32
–0.87
–0.49
–0.51
–1.15
–1.27
–1.64
–1.67
–1.16
–0.74
–1.18
–1.10
–1.09
–1.41
–1.43
–0.84
120°
125°
130°
135°
140°
145°
–0.52
–0.48
–0.47
–0.43
–0.41
–0.35
–0.41
–0.44
–0.44
–0.44
–0.42
–0.40
–0.25
–0.27
–0.28
–0.27
–0.22
–0.18
–0.34
–0.48
–0.57
–0.61
–0.59
–0.53
0.17
–0.02
–0.24
–0.41
–0.50
–0.52
–0.30
–0.42
–0.63
–0.87
–1.06
–1.17
–0.45
–0.38
–0.49
–0.74
–1.06
–1.30
–0.55
–0.36
–0.29
–0.45
–0.79
–1.16
–0.76
–0.60
–0.44
–0.46
–0.75
–1.16
–0.78
–0.84
–0.62
–0.44
–0.60
–1.04
–0.81
–1.11
–1.15
–0.91
–0.83
–1.15
–0.41
–0.58
–0.94
–0.85
–0.58
–0.66
150°
155°
160°
165°
170°
175°
–0.37
–0.32
–0.30
–0.27
–0.26
–0.25
–0.35
–0.33
–0.30
–0.28
–0.27
–0.25
–0.11
–0.05
–0.01
0.02
0.06
0.08
–0.44
–0.33
–0.24
–0.15
–0.09
–0.06
–0.45
–0.35
–0.23
–0.13
–0.05
0.00
–1.15
–1.04
–0.90
–0.76
–0.65
–0.58
–1.37
–1.27
–1.06
–0.84
–0.65
–0.55
–1.34
–1.30
–1.08
–0.81
–0.60
–0.46
–1.45
–1.48
–1.27
–0.96
–0.67
–0.50
–1.50
–1.67
–1.47
–1.09
–0.73
–0.52
–1.68
–2.03
–1.94
–1.55
–1.13
–0.84
–1.19
–1.76
–1.85
–1.46
–0.93
–0.57
180°
185°
190°
195°
200°
205°
–0.25
–0.24
–0.26
–0.29
–0.32
–0.35
–0.25
–0.27
–0.26
–0.29
–0.30
–0.33
0.07
0.07
0.04
0.01
–0.02
–0.08
–0.04
–0.06
–0.11
–0.16
–0.25
–0.35
0.01
–0.01
–0.07
–0.16
–0.28
–0.40
–0.56
–0.59
–0.67
–0.80
–0.94
–1.08
–0.51
–0.57
–0.70
–0.90
–1.13
–1.31
–0.42
–0.48
–0.65
–0.89
–1.16
–1.35
–0.45
–0.53
–0.74
–1.03
–1.34
–1.51
–0.46
–0.56
–0.82
–1.19
–1.55
–1.67
–0.77
–0.90
–1.22
–1.66
–2.02
–2.01
–0.47
–0.63
–1.04
–1.56
–1.91
–1.72
210°
215°
220°
225°
230°
235°
–0.39
–0.38
–0.40
–0.44
–0.65
–0.45
–0.37
–0.41
–0.45
–0.45
–0.38
–0.46
–0.12
–0.21
–0.23
–0.27
–0.29
–0.28
–0.45
–0.53
–0.61
–0.62
–0.58
–0.50
–0.51
–0.56
–0.54
–0.43
–0.25
–0.02
–1.17
–1.15
–1.03
–0.82
–0.58
–0.39
–1.38
–1.26
–0.98
–0.66
–0.42
–0.36
–1.34
–1.10
–0.73
–0.40
–0.27
–0.36
–1.42
–1.05
–0.63
–0.38
–0.41
–0.62
–1.42
–0.93
–0.51
–0.42
–0.64
–0.86
–1.56
–1.01
–0.76
–0.93
–1.20
–1.14
–1.13
–0.64
–0.63
–0.94
–0.98
–0.62
240°
245°
250°
255°
260°
265°
–0.44
–0.47
–0.46
–0.47
–0.37
–0.36
–0.44
–0.40
–0.35
–0.27
–0.24
–0.17
–0.26
–0.18
–0.09
–0.01
0.07
0.13
–0.36
–0.21
–0.06
0.07
0.14
0.17
0.20
0.35
0.42
0.41
0.32
0.19
–0.29
–0.32
–0.44
–0.57
–0.66
–0.65
–0.45
–0.63
–0.74
–0.71
–0.61
–0.56
–0.56
–0.68
–0.63
–0.49
–0.47
–0.65
–0.78
–0.72
–0.54
–0.52
–0.78
–1.14
–0.78
–0.56
–0.57
–0.95
–1.33
–1.26
–0.86
–0.84
–1.28
–1.70
–1.58
–1.25
–0.51
–0.98
–1.51
–1.41
–1.10
–1.16
270°
275°
280°
285°
290°
295°
–0.29
–0.27
–0.15
–0.20
–0.16
–0.14
–0.13
–0.06
–0.05
0.02
0.06
0.07
0.20
0.22
0.24
0.24
0.20
0.18
0.15
0.11
0.04
–0.04
–0.09
–0.13
0.07
–0.01
–0.03
–0.01
0.04
0.08
–0.59
–0.51
–0.48
–0.52
–0.61
–0.72
–0.64
–0.82
–0.97
–0.96
–0.79
–0.55
–0.90
–1.03
–0.88
–0.60
–0.37
–0.32
–1.21
–0.92
–0.60
–0.51
–0.60
–0.66
–0.86
–0.67
–0.78
–0.85
–0.69
–0.42
–1.21
–1.34
–1.22
–0.91
–0.73
–0.76
–1.22
–0.92
–0.66
–0.64
–0.64
–0.46
300°
305°
310°
315°
320°
325°
–0.10
–0.09
0.00
–0.04
–0.02
0.01
0.09
0.10
0.07
0.10
0.07
0.07
0.15
0.10
0.05
0.02
0.02
–0.01
–0.15
–0.14
–0.13
–0.11
–0.08
–0.05
0.12
0.12
0.09
0.07
0.04
0.00
–0.78
–0.76
–0.67
–0.52
–0.37
–0.24
–0.38
–0.30
–0.32
–0.37
–0.40
–0.38
–0.39
–0.45
–0.41
–0.28
–0.12
–0.01
–0.54
–0.31
–0.15
–0.09
–0.14
–0.20
–0.30
–0.33
–0.39
–0.33
–0.19
–0.03
–0.77
–0.63
–0.46
–0.39
–0.42
–0.47
–0.30
–0.31
–0.34
–0.23
–0.02
0.12
330°
335°
340°
345°
350°
355°
0.02
0.01
0.02
0.03
0.03
0.03
0.04
0.02
0.02
0.01
0.01
0.00
–0.02
–0.02
0.00
0.01
0.00
–0.01
–0.03
–0.02
–0.02
–0.01
0.00
0.00
–0.02
–0.02
–0.02
–0.02
–0.01
0.00
–0.13
–0.07
–0.02
0.00
0.01
0.03
–0.32
–0.24
–0.16
–0.09
–0.03
0.01
0.07
0.09
0.08
0.06
0.03
0.01
–0.24
–0.21
–0.16
–0.09
–0.03
0.02
0.08
0.13
0.13
0.10
0.08
0.05
–0.47
–0.38
–0.25
–0.14
–0.05
0.01
0.13
0.08
0.02
–0.01
–0.01
0.01
BE171211.book Page 91 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
91
Table A.35 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), with Windscreen UA 1650 fitted and measured in a plane parallel to the Hand-held Analyzer’s display, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
0°
5°
10°
15°
20°
25°
–0.02
0.00
0.04
0.10
0.18
0.20
–0.02
0.00
0.07
0.11
0.11
0.00
–0.02
0.00
0.04
0.06
0.05
–0.07
–0.01
–0.07
–0.09
–0.17
–0.23
–0.26
0.01
–0.07
–0.16
–0.33
–0.55
–0.59
–0.03
–0.06
–0.04
–0.04
–0.07
–0.25
–0.02
–0.10
–0.22
–0.41
–0.49
–0.47
0.02
–0.04
–0.10
–0.24
–0.35
–0.48
0.02
–0.02
–0.11
–0.28
–0.35
–0.44
0.00
–0.07
–0.16
–0.27
–0.33
–0.58
10000 Hz 10600 Hz
–0.02
–0.08
–0.15
–0.28
–0.39
–0.44
–0.02
–0.07
–0.17
–0.34
–0.36
–0.23
30°
35°
40°
45°
50°
55°
0.09
–0.12
–0.30
–0.32
–0.28
–0.39
–0.27
–0.54
–0.61
–0.57
–0.65
–0.89
–0.31
–0.52
–0.50
–0.46
–0.67
–0.87
–0.29
–0.44
–0.63
–0.65
–0.76
–1.22
–0.39
–0.30
–0.79
–1.29
–1.33
–1.63
–0.42
–0.23
–0.31
–0.95
–0.72
–0.97
–0.68
–1.11
–1.09
–1.25
–1.49
–1.38
–0.79
–1.03
–1.24
–1.71
–1.69
–2.09
–0.76
–1.08
–1.35
–1.70
–2.09
–2.28
–1.09
–1.33
–1.59
–1.91
–2.29
–2.73
–0.54
–0.73
–1.21
–1.69
–2.01
–2.26
–0.44
–0.81
–0.94
–1.29
–1.80
–2.23
60°
65°
70°
75°
80°
85°
–0.60
–0.64
–0.61
–0.76
–0.91
–0.91
–0.99
–1.05
–1.17
–1.27
–1.37
–1.43
–0.86
–1.03
–1.41
–1.57
–1.52
–1.62
–1.45
–1.59
–1.57
–1.41
–1.95
–2.32
–1.62
–1.78
–2.12
–2.25
–2.26
–2.46
–1.54
–1.63
–1.94
–2.01
–2.16
–2.63
–2.02
–2.00
–2.69
–2.82
–3.14
–3.41
–1.92
–2.51
–2.66
–3.22
–3.41
–3.70
–2.66
–2.67
–3.05
–3.44
–4.06
–4.09
–2.95
–3.47
–3.58
–3.81
–4.37
–4.91
–2.89
–3.09
–3.39
–3.75
–3.97
–4.70
–2.52
–3.12
–3.39
–3.58
–4.10
–4.37
90°
95°
100°
105°
110°
115°
–1.13
–1.53
–1.52
–1.46
–1.74
–1.63
–1.62
–1.85
–2.16
–2.34
–2.21
–2.38
–1.70
–1.86
–2.34
–2.71
–2.74
–2.67
–2.42
–2.30
–2.21
–2.86
–3.66
–3.64
–3.12
–2.82
–3.08
–2.84
–3.95
–4.39
–2.43
–3.04
–2.75
–3.14
–2.88
–3.73
–3.61
–3.86
–4.24
–4.08
–4.21
–4.27
–3.83
–4.19
–4.61
–4.74
–4.26
–5.10
–4.35
–4.51
–4.93
–5.32
–5.03
–5.24
–4.82
–5.32
–5.44
–5.85
–5.92
–5.64
–5.10
–5.05
–5.41
–5.54
–6.16
–5.86
–5.13
–5.04
–5.27
–5.86
–6.22
–5.96
120°
125°
130°
135°
140°
145°
–0.95
–0.58
–0.90
–1.22
–1.05
–0.86
–2.16
–1.33
–1.19
–1.71
–1.85
–1.54
–2.70
–2.21
–1.52
–1.63
–2.17
–2.11
–3.29
–2.94
–2.54
–2.24
–2.51
–2.71
–4.42
–3.78
–3.10
–2.76
–2.91
–3.83
–4.40
–4.48
–3.39
–2.71
–2.33
–2.89
–5.59
–5.75
–5.35
–3.82
–3.48
–3.55
–5.66
–6.32
–6.63
–4.47
–4.17
–3.88
–5.84
–7.42
–7.17
–5.73
–4.53
–4.51
–6.57
–7.89
–7.84
–7.14
–5.20
–5.29
–6.11
–7.35
–8.19
–7.53
–5.43
–5.45
–5.76
–7.10
–8.75
–7.81
–5.76
–5.71
150°
155°
160°
165°
170°
175°
–1.18
–1.83
–2.16
–1.84
–1.23
–0.80
–1.66
–2.32
–2.81
–2.52
–1.81
–1.29
–1.94
–2.46
–3.16
–3.02
–2.21
–1.56
–2.50
–2.71
–3.52
–3.87
–3.14
–2.31
–3.71
–3.43
–4.02
–4.44
–3.71
–2.83
–3.73
–3.56
–4.02
–4.81
–4.07
–2.98
–4.60
–4.35
–4.49
–5.54
–5.13
–3.80
–5.04
–4.96
–4.76
–5.90
–5.73
–4.25
–5.21
–5.84
–5.32
–6.26
–6.36
–4.83
–5.56
–6.71
–6.08
–6.83
–7.26
–5.66
–5.45
–6.83
–6.16
–6.90
–7.71
–5.98
–5.71
–6.96
–6.63
–6.77
–7.98
–6.49
180°
185°
190°
195°
200°
205°
–0.66
–0.85
–1.34
–1.91
–2.15
–1.77
–1.15
–1.42
–2.04
–2.74
–2.87
–2.20
–1.37
–1.69
–2.43
–3.12
–2.97
–2.22
–2.02
–2.38
–3.24
–3.89
–3.55
–2.93
–2.61
–3.20
–4.38
–4.93
–4.14
–3.45
–2.68
–3.34
–4.51
–4.60
–3.55
–3.35
–3.33
–4.06
–5.39
–5.26
–4.30
–4.55
–3.75
–4.64
–6.12
–5.63
–4.75
–5.18
–4.25
–5.25
–6.71
–6.05
–5.41
–6.00
–5.00
–6.16
–7.59
–6.72
–6.20
–6.74
–5.24
–6.53
–8.02
–6.70
–6.49
–6.48
–5.67
–6.98
–8.05
–6.61
–7.12
–6.45
210°
215°
220°
225°
230°
235°
–1.15
–0.90
–1.15
–1.28
–0.89
–0.69
–1.55
–1.61
–2.03
–1.76
–1.25
–1.57
–1.96
–2.31
–2.24
–1.69
–1.75
–2.33
–3.05
–3.30
–2.70
–2.23
–2.40
–2.81
–3.60
–3.27
–2.68
–2.96
–3.24
–4.22
–3.73
–2.76
–2.57
–2.67
–3.68
–4.61
–4.32
–3.61
–3.52
–3.95
–5.84
–5.67
–4.94
–3.97
–4.25
–4.97
–6.89
–6.69
–5.03
–4.74
–4.51
–6.62
–7.16
–7.59
–5.38
–5.39
–5.24
–7.67
–8.02
–7.41
–5.55
–5.20
–5.76
–7.63
–8.42
–7.13
–5.96
–5.42
–6.35
–7.95
–8.80
–6.66
240°
245°
250°
255°
260°
265°
–1.15
–1.71
–1.72
–1.53
–1.57
–1.52
–2.28
–2.31
–2.27
–2.44
–2.20
–1.93
–2.64
–2.79
–2.83
–2.79
–2.41
–1.85
–3.30
–3.76
–3.99
–2.94
–2.15
–2.21
–4.74
–4.38
–3.43
–2.92
–3.40
–3.06
–4.36
–3.57
–3.08
–3.01
–2.93
–2.83
–5.48
–4.32
–4.08
–4.32
–4.15
–3.95
–5.76
–5.17
–4.66
–4.93
–4.71
–4.32
–5.97
–5.24
–5.25
–5.62
–5.04
–4.62
–6.54
–5.72
–6.06
–5.78
–5.55
–5.34
–5.70
–6.01
–6.32
–5.65
–5.38
–5.06
–5.82
–6.08
–6.06
–6.02
–5.34
–5.32
270°
275°
280°
285°
290°
295°
–1.18
–0.96
–0.91
–0.75
–0.61
–0.64
–1.67
–1.45
–1.36
–1.29
–1.21
–1.10
–1.70
–1.62
–1.66
–1.61
–1.38
–1.01
–2.50
–2.63
–1.96
–1.39
–1.61
–1.69
–2.89
–2.27
–2.63
–2.48
–2.16
–1.78
–2.67
–2.53
–2.18
–2.04
–1.98
–1.61
–3.54
–3.41
–3.23
–2.76
–2.59
–2.10
–4.06
–3.90
–3.55
–3.36
–2.85
–2.50
–4.58
–4.22
–4.11
–3.57
–3.09
–2.83
–4.86
–4.98
–4.47
–3.78
–3.65
–3.45
–5.30
–4.73
–3.96
–3.89
–3.42
–3.18
–5.00
–4.45
–4.25
–3.58
–3.49
–3.13
300°
305°
310°
315°
320°
325°
–0.61
–0.39
–0.27
–0.30
–0.25
–0.07
–1.01
–0.85
–0.62
–0.55
–0.62
–0.55
–0.87
–0.93
–0.71
–0.49
–0.49
–0.42
–1.42
–1.05
–0.70
–0.80
–0.93
–0.60
–1.74
–1.69
–1.28
–1.30
–1.02
–0.60
–1.49
–0.89
–0.85
–0.87
–0.28
–0.24
–1.90
–1.43
–1.47
–1.24
–1.10
–1.01
–2.14
–2.12
–1.84
–1.75
–1.33
–1.14
–2.70
–2.44
–2.08
–1.77
–1.42
–1.15
–3.03
–2.69
–2.38
–1.94
–1.67
–1.39
–2.92
–2.33
–2.05
–1.78
–1.21
–0.84
–2.58
–2.33
–1.81
–1.34
–0.97
–0.82
330°
335°
340°
345°
350°
355°
0.11
0.20
0.18
0.12
0.06
0.03
–0.32
–0.06
0.07
0.09
0.05
0.04
–0.20
–0.01
0.07
0.06
0.03
0.03
–0.19
0.04
0.12
0.11
0.08
0.03
–0.53
–0.50
–0.32
–0.12
–0.01
0.01
–0.34
–0.20
–0.06
–0.02
0.00
0.03
–0.68
–0.51
–0.45
–0.32
–0.14
–0.01
–0.83
–0.58
–0.47
–0.33
–0.17
–0.07
–0.84
–0.53
–0.42
–0.33
–0.19
–0.08
–1.04
–0.59
–0.37
–0.24
–0.11
–0.03
–0.57
–0.45
–0.39
–0.25
–0.10
–0.02
–0.42
–0.25
–0.33
–0.28
–0.14
–0.03
BE171211.book Page 92 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
92
Table A.36 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), with Windscreen UA 1650 fitted and measured in a plane parallel to the Hand-held Analyzer’s display, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.00
–0.07
–0.22
–0.49
–0.79
–0.99
–0.01
–0.09
–0.17
–0.32
–0.64
–1.03
0.01
–0.05
–0.10
–0.06
–0.05
–0.33
0.01
–0.05
–0.20
–0.52
–0.85
–1.06
–0.04
–0.13
–0.22
–0.23
–0.34
–0.53
–0.10
–0.14
–0.21
–0.54
–1.22
–1.53
–0.09
–0.17
–0.21
–0.35
–0.48
–0.96
–0.18
–0.41
–0.50
–0.53
–0.81
–1.24
0.00
–0.12
–0.15
–0.48
–0.76
–1.21
0.04
–0.05
–0.21
–0.37
–0.98
–1.59
0.07
–0.05
–0.19
–0.40
–0.73
–1.20
30°
35°
40°
45°
50°
55°
–1.22
–1.46
–1.54
–1.94
–2.34
–2.64
–1.37
–1.97
–2.14
–2.49
–2.75
–3.19
–0.58
–1.16
–1.67
–2.30
–2.41
–2.83
–1.48
–1.69
–2.15
–2.75
–3.43
–3.83
–0.72
–1.27
–1.69
–1.99
–2.72
–3.54
–2.07
–2.20
–2.67
–3.32
–3.75
–4.30
–1.50
–2.28
–2.73
–3.16
–3.55
–4.43
–1.51
–1.87
–2.90
–3.56
–4.08
–4.67
–1.60
–1.77
–2.46
–3.14
–3.96
–4.75
–2.26
–2.81
–3.27
–3.69
–4.59
–5.84
–1.77
–2.51
–3.25
–3.89
–4.55
–5.55
60°
65°
70°
75°
80°
85°
–3.33
–3.70
–4.24
–4.53
–4.57
–5.21
–3.71
–4.51
–4.86
–5.31
–5.77
–5.73
–3.57
–4.10
–4.65
–5.18
–5.79
–6.26
–4.20
–4.99
–5.72
–6.17
–6.76
–7.54
–4.00
–4.20
–5.04
–6.01
–6.41
–6.90
–5.26
–5.88
–6.07
–6.97
–8.23
–8.54
–5.11
–6.09
–6.94
–7.01
–8.21
–9.16
–6.00
–6.26
–7.48
–8.32
–8.51
–9.65
–5.29
–6.38
–7.02
–8.07
–8.94
–9.37
–6.47
–7.26
–8.42
–9.30
–10.45
–11.09
–6.80
–7.53
–8.50
–9.65
–10.74
–11.85
90°
95°
100°
105°
110°
115°
–5.64
–6.59
–6.42
–6.59
–7.04
–7.18
–6.35
–6.99
–7.36
–7.42
–8.05
–8.33
–6.48
–7.21
–8.12
–7.68
–7.39
–7.95
–7.64
–7.90
–8.67
–9.33
–8.92
–9.56
–7.90
–8.02
–8.18
–9.41
–9.84
–9.36
–8.72
–9.56
–9.93
–10.36
–11.31
–11.43
–9.02
–9.53
–10.18
–10.95
–11.96
–12.46
–10.45
–10.56
–11.75
–12.18
–11.90
–12.68
–10.62
–11.47
–11.91
–11.77
–12.97
–12.98
–12.06
–13.16
–13.66
–13.63
–14.64
–15.49
–12.44
–13.25
–14.22
–13.73
–15.27
–15.96
120°
125°
130°
135°
140°
145°
–6.87
–7.31
–9.25
–9.05
–7.31
–6.24
–7.40
–7.48
–9.81
–10.73
–8.87
–6.71
–7.81
–8.07
–10.21
–11.51
–9.20
–6.73
–10.05
–9.60
–10.13
–12.07
–10.90
–8.49
–9.61
–8.99
–9.77
–12.41
–11.87
–9.37
–11.54
–11.07
–11.94
–15.05
–14.52
–11.44
–12.20
–10.91
–11.04
–13.87
–15.02
–12.24
–13.22
–13.32
–11.89
–13.68
–15.45
–12.44
–13.79
–14.18
–12.52
–14.33
–17.55
–14.67
–16.44
–16.94
–14.36
–14.63
–20.61
–18.08
–15.50
–16.26
–15.53
–15.47
–18.84
–17.60
150°
155°
160°
165°
170°
175°
–6.98
–7.56
–7.81
–7.40
–8.69
–7.34
–7.82
–8.06
–8.67
–7.72
–9.31
–8.13
–7.71
–7.71
–9.07
–7.79
–9.00
–8.29
–8.52
–9.37
–10.59
–9.57
–10.66
–9.84
–8.80
–9.71
–11.37
–10.15
–11.12
–10.68
–10.27
–11.90
–12.21
–11.91
–12.30
–12.23
–10.22
–11.87
–11.79
–12.00
–11.94
–12.80
–11.31
–12.91
–12.52
–13.08
–12.64
–14.09
–12.98
–14.30
–14.40
–15.13
–14.11
–15.23
–14.46
–14.36
–15.73
–16.64
–14.70
–17.34
–14.07
–13.90
–15.88
–17.12
–14.51
–17.19
180°
185°
190°
195°
200°
205°
–6.48
–7.90
–8.61
–7.49
–8.14
–7.26
–7.18
–8.87
–9.23
–7.99
–8.83
–7.72
–7.31
–8.94
–9.04
–8.19
–9.07
–7.76
–8.88
–10.80
–10.71
–9.97
–10.32
–9.52
–9.50
–11.54
–10.58
–10.65
–10.71
–9.84
–10.88
–12.84
–11.94
–12.36
–11.50
–11.69
–11.21
–12.93
–11.45
–12.08
–11.18
–11.08
–13.00
–12.93
–12.34
–12.89
–12.56
–11.02
–14.95
–15.66
–13.40
–14.72
–14.54
–12.29
–15.08
–16.23
–14.63
–15.85
–15.71
–14.16
–16.36
–16.60
–15.27
–16.28
–16.20
–13.92
210°
215°
220°
225°
230°
235°
–7.07
–6.06
–8.21
–9.70
–9.28
–7.00
–7.88
–7.01
–9.55
–11.39
–10.06
–7.73
–7.37
–7.43
–9.79
–11.43
–9.19
–8.39
–8.29
–9.13
–11.74
–12.02
–9.34
–9.20
–8.41
–9.72
–12.27
–12.44
–9.66
–9.03
–10.24
–11.60
–13.95
–13.67
–11.04
–10.91
–10.16
–12.55
–15.15
–13.08
–10.90
–11.40
–11.16
–13.87
–16.73
–12.76
–11.49
–12.46
–12.06
–15.05
–16.46
–12.32
–12.40
–14.25
–14.52
–17.94
–19.45
–14.49
–15.01
–16.31
–14.64
–18.75
–16.99
–14.00
–15.52
–16.52
240°
245°
250°
255°
260°
265°
–6.91
–7.54
–7.33
–6.67
–6.50
–6.54
–7.58
–8.35
–8.13
–7.38
–7.84
–7.21
–8.95
–8.72
–7.69
–7.96
–7.98
–7.17
–10.00
–9.34
–8.89
–9.65
–8.65
–7.76
–9.38
–9.10
–9.66
–9.03
–7.83
–7.71
–11.16
–10.98
–11.08
–10.03
–9.76
–9.47
–11.80
–11.87
–11.12
–10.38
–9.75
–9.40
–12.38
–12.00
–11.16
–11.03
–10.52
–9.80
–13.81
–12.97
–12.11
–11.99
–11.15
–11.40
–16.23
–15.66
–14.86
–14.00
–14.00
–13.37
–15.26
–15.57
–14.95
–14.20
–14.19
–13.31
270°
275°
280°
285°
290°
295°
–6.02
–5.45
–4.75
–4.71
–4.26
–3.81
–6.43
–5.75
–5.79
–5.38
–4.93
–4.51
–6.36
–6.27
–5.85
–5.15
–4.68
–4.30
–7.66
–7.52
–6.59
–6.20
–5.94
–5.11
–7.52
–6.54
–6.33
–6.08
–4.94
–4.18
–8.44
–8.26
–7.84
–6.66
–5.87
–5.81
–9.00
–8.89
–7.85
–6.75
–6.65
–5.78
–10.04
–9.00
–7.92
–8.04
–7.23
–6.21
–10.65
–9.23
–8.81
–8.00
–6.82
–6.30
–12.30
–11.24
–10.77
–9.58
–8.75
–7.46
–12.37
–12.01
–10.89
–10.17
–8.83
–8.04
300°
305°
310°
315°
320°
325°
–3.47
–2.72
–2.37
–2.11
–1.54
–1.59
–3.88
–3.28
–2.77
–2.63
–2.24
–1.99
–3.79
–2.99
–2.59
–2.38
–1.79
–1.21
–4.30
–4.01
–3.48
–2.90
–2.28
–1.73
–4.07
–3.53
–2.67
–1.95
–1.66
–1.29
–5.07
–4.06
–3.51
–3.21
–2.55
–2.09
–4.90
–4.32
–3.52
–3.05
–2.54
–2.10
–5.59
–4.61
–3.87
–3.44
–2.63
–1.98
–5.27
–4.77
–3.95
–2.89
–2.21
–1.68
–6.91
–6.03
–4.95
–3.92
–3.52
–3.03
–7.29
–6.19
–5.17
–4.67
–3.68
–2.86
330°
335°
340°
345°
350°
355°
–1.31
–1.06
–0.87
–0.51
–0.21
–0.06
–1.39
–1.06
–0.74
–0.32
–0.07
0.01
–0.70
–0.27
–0.05
–0.04
–0.05
–0.04
–1.59
–1.13
–0.92
–0.55
–0.19
–0.06
–0.66
–0.48
–0.22
–0.15
–0.12
–0.02
–1.86
–1.44
–1.05
–0.39
–0.03
0.05
–1.40
–0.77
–0.31
–0.13
0.03
0.12
–1.41
–1.07
–0.81
–0.55
–0.20
–0.17
–1.20
–0.98
–0.63
–0.29
–0.12
–0.07
–2.42
–1.74
–1.12
–0.55
–0.36
–0.07
–2.15
–1.63
–0.97
–0.63
–0.28
–0.12
BE171211.book Page 93 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
93
Table A.37 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), with Windscreen UA 1650 fitted and measured in a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to
the display, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1000 Hz
1250 Hz
1600 Hz
2000 Hz
2240 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
0.02
0.02
–0.02
0.02
0.03
–0.02
–0.03
–0.01
0.01
0.05
0.01
0.02
–0.01
–0.03
–0.01
–0.02
–0.02
–0.04
0.00
0.00
0.00
–0.01
–0.01
–0.04
0.00
0.00
–0.01
–0.01
–0.01
–0.03
–0.01
0.01
0.00
–0.02
–0.04
–0.11
–0.01
–0.01
–0.03
–0.08
–0.15
–0.25
–0.01
–0.01
0.02
0.04
0.08
0.11
–0.01
–0.03
–0.07
–0.15
–0.24
–0.36
–0.02
0.00
0.05
0.08
0.13
0.12
–0.01
–0.03
–0.08
–0.17
–0.29
–0.42
–0.01
–0.01
0.00
–0.01
0.00
0.05
30°
35°
40°
45°
50°
55°
0.05
–0.05
–0.04
–0.06
–0.08
–0.07
0.03
0.06
0.08
0.10
0.12
0.10
–0.04
–0.04
–0.02
0.01
0.04
0.08
–0.05
–0.09
–0.10
–0.15
–0.18
–0.20
0.00
0.00
0.06
0.11
0.14
0.16
–0.18
–0.30
–0.43
–0.58
–0.73
–0.83
–0.34
–0.42
–0.42
–0.38
–0.32
–0.30
0.12
0.06
–0.05
–0.22
–0.37
–0.41
–0.39
–0.35
–0.24
–0.11
–0.10
–0.28
0.09
–0.08
–0.32
–0.56
–0.63
–0.45
–0.47
–0.44
–0.31
–0.22
–0.32
–0.69
0.10
0.05
–0.15
–0.42
–0.53
–0.34
60°
65°
70°
75°
80°
85°
–0.15
–0.13
–0.14
–0.18
–0.24
–0.26
0.13
0.11
0.09
0.05
0.05
–0.03
0.14
0.19
0.23
0.26
0.30
0.28
–0.21
–0.20
–0.16
–0.08
0.02
0.10
0.13
0.09
0.02
–0.05
–0.08
–0.05
–0.83
–0.77
–0.65
–0.55
–0.52
–0.57
–0.37
–0.56
–0.82
–1.04
–1.04
–0.90
–0.33
–0.25
–0.31
–0.54
–0.88
–1.05
–0.53
–0.67
–0.57
–0.45
–0.56
–0.95
–0.23
–0.28
–0.61
–0.84
–0.66
–0.52
–1.06
–1.04
–0.72
–0.71
–1.10
–1.21
–0.18
–0.43
–0.91
–0.91
–0.56
–0.75
90°
95°
100°
105°
110°
115°
–0.26
–0.36
–0.44
–0.39
–0.43
–0.50
–0.09
–0.13
–0.19
–0.27
–0.33
–0.35
0.23
0.18
0.09
0.01
–0.08
–0.15
0.17
0.20
0.18
0.09
–0.04
–0.18
0.06
0.21
0.35
0.45
0.47
0.38
–0.67
–0.72
–0.68
–0.52
–0.33
–0.21
–0.75
–0.73
–0.81
–0.86
–0.74
–0.50
–0.93
–0.69
–0.59
–0.69
–0.79
–0.66
–1.28
–1.21
–0.89
–0.74
–0.84
–0.97
–0.85
–1.41
–1.44
–0.95
–0.71
–0.93
–0.94
–1.05
–1.71
–1.93
–1.33
–0.99
–1.19
–0.91
–0.83
–1.57
–1.84
–1.11
120°
125°
130°
135°
140°
145°
–0.50
–0.45
–0.47
–0.45
–0.40
–0.34
–0.40
–0.44
–0.44
–0.42
–0.42
–0.40
–0.23
–0.27
–0.28
–0.27
–0.23
–0.19
–0.35
–0.48
–0.59
–0.62
–0.61
–0.55
0.20
–0.04
–0.27
–0.46
–0.56
–0.56
–0.20
–0.33
–0.58
–0.87
–1.11
–1.23
–0.26
–0.18
–0.32
–0.66
–1.07
–1.38
–0.32
–0.04
–0.02
–0.31
–0.77
–1.23
–0.77
–0.35
–0.07
–0.17
–0.62
–1.24
–1.07
–0.69
–0.16
0.01
–0.33
–1.03
–1.25
–1.38
–0.84
–0.27
–0.26
–0.92
–0.80
–1.17
–1.09
–0.30
0.13
–0.30
150°
155°
160°
165°
170°
175°
–0.40
–0.33
–0.33
–0.25
–0.27
–0.22
–0.33
–0.32
–0.28
–0.26
–0.24
–0.23
–0.12
–0.06
–0.01
0.03
0.07
0.09
–0.45
–0.35
–0.25
–0.17
–0.10
–0.07
–0.48
–0.38
–0.25
–0.13
–0.05
0.01
–1.21
–1.10
–0.93
–0.78
–0.65
–0.57
–1.47
–1.36
–1.12
–0.88
–0.69
–0.57
–1.45
–1.39
–1.13
–0.83
–0.59
–0.43
–1.68
–1.70
–1.43
–1.05
–0.73
–0.53
–1.69
–1.91
–1.65
–1.20
–0.79
–0.53
–1.86
–2.42
–2.24
–1.67
–1.13
–0.78
–1.34
–2.26
–2.31
–1.71
–1.05
–0.61
180°
185°
190°
195°
200°
205°
–0.25
–0.25
–0.28
–0.32
–0.32
–0.35
–0.21
–0.22
–0.23
–0.24
–0.27
–0.30
0.10
0.09
0.07
0.03
0.00
–0.05
–0.05
–0.06
–0.09
–0.15
–0.22
–0.33
0.03
0.03
–0.03
–0.12
–0.23
–0.36
–0.53
–0.55
–0.64
–0.77
–0.94
–1.12
–0.51
–0.56
–0.69
–0.90
–1.15
–1.40
–0.38
–0.43
–0.59
–0.85
–1.15
–1.42
–0.47
–0.53
–0.74
–1.07
–1.44
–1.73
–0.44
–0.53
–0.79
–1.20
–1.67
–1.94
–0.67
–0.78
–1.12
–1.65
–2.21
–2.41
–0.47
–0.61
–1.05
–1.72
–2.33
–2.25
210°
215°
220°
225°
230°
235°
–0.40
–0.36
–0.42
–0.47
–0.64
–0.49
–0.32
–0.35
–0.41
–0.39
–0.34
–0.41
–0.09
–0.16
–0.21
–0.24
–0.26
–0.26
–0.43
–0.54
–0.61
–0.64
–0.61
–0.51
–0.49
–0.57
–0.57
–0.48
–0.29
–0.04
–1.26
–1.29
–1.17
–0.92
–0.60
–0.32
–1.54
–1.45
–1.11
–0.67
–0.28
–0.10
–1.49
–1.24
–0.74
–0.22
0.09
0.08
–1.69
–1.22
–0.58
–0.07
0.05
–0.22
–1.72
–1.01
–0.24
0.15
–0.01
–0.58
–1.87
–0.91
–0.18
–0.12
–0.69
–1.33
–1.30
–0.23
0.22
–0.17
–0.96
–1.17
240°
245°
250°
255°
260°
265°
–0.47
–0.47
–0.45
–0.50
–0.39
–0.40
–0.40
–0.39
–0.34
–0.27
–0.21
–0.13
–0.23
–0.16
–0.06
0.01
0.13
0.20
–0.37
–0.19
–0.03
0.13
0.21
0.25
0.21
0.42
0.54
0.55
0.46
0.32
–0.13
–0.11
–0.23
–0.44
–0.63
–0.71
–0.15
–0.40
–0.69
–0.84
–0.81
–0.70
–0.21
–0.58
–0.77
–0.67
–0.55
–0.62
–0.68
–0.94
–0.85
–0.71
–0.85
–1.16
–1.01
–0.93
–0.74
–0.96
–1.38
–1.35
–1.32
–1.06
–1.31
–1.86
–1.67
–1.01
–0.89
–1.17
–1.83
–1.53
–0.82
–0.87
270°
275°
280°
285°
290°
295°
–0.34
–0.27
–0.19
–0.24
–0.21
–0.13
–0.08
–0.03
0.01
0.07
0.12
0.10
0.29
0.31
0.34
0.33
0.31
0.27
0.23
0.19
0.11
0.02
–0.06
–0.13
0.16
0.03
–0.04
–0.04
0.01
0.08
–0.70
–0.61
–0.54
–0.53
–0.59
–0.69
–0.67
–0.79
–0.95
–0.98
–0.82
–0.56
–0.86
–1.02
–0.86
–0.51
–0.23
–0.16
–1.24
–0.89
–0.49
–0.38
–0.52
–0.65
–0.80
–0.47
–0.60
–0.80
–0.60
–0.24
–0.88
–1.19
–1.08
–0.64
–0.58
–0.83
–1.13
–0.72
–0.48
–0.74
–0.76
–0.44
300°
305°
310°
315°
320°
325°
–0.14
–0.08
0.00
–0.05
–0.07
–0.02
0.14
0.14
0.10
0.12
0.13
0.12
0.24
0.18
0.12
0.08
0.08
0.04
–0.16
–0.16
–0.15
–0.12
–0.09
–0.05
0.13
0.16
0.15
0.13
0.09
0.06
–0.75
–0.74
–0.67
–0.54
–0.39
–0.25
–0.35
–0.26
–0.26
–0.32
–0.37
–0.36
–0.25
–0.36
–0.36
–0.22
–0.05
0.08
–0.53
–0.28
–0.07
–0.03
–0.12
–0.21
–0.12
–0.28
–0.42
–0.37
–0.21
–0.03
–0.89
–0.67
–0.42
–0.35
–0.40
–0.46
–0.28
–0.41
–0.45
–0.23
0.06
0.21
330°
335°
340°
345°
350°
355°
0.03
–0.03
0.01
0.01
0.03
–0.01
0.06
0.07
0.05
0.03
0.05
0.03
0.03
0.02
0.03
0.03
0.03
0.01
–0.03
–0.02
–0.01
0.00
0.01
0.01
0.04
0.01
0.01
0.00
0.01
0.00
–0.15
–0.08
–0.03
–0.01
0.01
0.02
–0.31
–0.25
–0.16
–0.09
–0.04
0.00
0.14
0.15
0.13
0.09
0.05
0.03
–0.26
–0.23
–0.17
–0.09
–0.02
0.02
0.08
0.11
0.10
0.07
0.04
0.02
–0.42
–0.31
–0.19
–0.08
–0.02
0.02
0.20
0.11
0.03
–0.01
–0.01
0.00
BE171211.book Page 94 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
94
Table A.38 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), with Windscreen UA 1650 fitted and measured in a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to
the display, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
10000 Hz 10600 Hz
0°
5°
10°
15°
20°
25°
–0.02
–0.01
0.05
0.12
0.18
0.19
–0.02
0.00
0.08
0.13
0.09
–0.10
–0.02
0.02
0.07
0.09
0.07
–0.11
–0.01
–0.02
0.07
0.20
0.30
0.27
–0.01
–0.02
–0.04
–0.14
–0.31
–0.43
–0.02
0.00
0.04
0.09
0.10
–0.06
–0.01
–0.05
–0.10
–0.24
–0.49
–0.69
–0.01
–0.04
–0.09
–0.24
–0.49
–0.78
–0.01
0.01
–0.06
–0.21
–0.36
–0.48
–0.01
–0.08
–0.21
–0.35
–0.35
–0.41
–0.01
–0.05
–0.20
–0.43
–0.46
–0.35
0.00
–0.10
–0.27
–0.46
–0.51
–0.44
30°
35°
40°
45°
50°
55°
0.08
–0.18
–0.37
–0.28
–0.15
–0.35
–0.47
–0.79
–0.69
–0.43
–0.57
–1.03
–0.39
–0.52
–0.28
–0.28
–0.88
–1.04
–0.06
–0.51
–0.51
–0.49
–1.03
–1.09
–0.52
–0.81
–1.19
–1.13
–1.34
–1.76
–0.37
–0.46
–0.44
–0.85
–0.82
–0.94
–0.72
–1.00
–1.35
–1.10
–1.69
–1.58
–0.97
–1.18
–1.41
–1.74
–1.91
–1.95
–0.77
–1.24
–1.52
–1.53
–1.90
–2.41
–0.90
–1.23
–1.38
–2.12
–2.42
–2.58
–0.66
–0.89
–1.25
–1.78
–2.04
–2.69
–0.81
–0.98
–1.06
–1.40
–1.87
–2.32
60°
65°
70°
75°
80°
85°
–0.75
–0.72
–0.49
–0.81
–1.33
–1.06
–1.04
–0.90
–1.40
–1.51
–1.21
–1.84
–0.68
–1.08
–1.43
–1.30
–1.72
–1.61
–1.09
–1.71
–1.17
–1.44
–1.86
–2.09
–1.61
–2.12
–2.03
–2.80
–2.20
–2.66
–1.33
–1.72
–1.77
–2.08
–2.14
–2.68
–2.26
–2.06
–2.73
–2.97
–3.02
–3.69
–2.36
–2.75
–2.75
–3.49
–3.66
–3.67
–2.27
–2.91
–3.11
–3.25
–4.01
–4.18
–3.18
–2.97
–3.70
–4.09
–4.19
–4.55
–2.63
–3.39
–3.30
–3.94
–4.32
–4.79
–3.01
–2.95
–3.67
–3.72
–4.42
–4.66
90°
95°
100°
105°
110°
115°
–0.83
–1.35
–1.30
–1.06
–1.87
–2.16
–2.04
–1.43
–2.02
–2.13
–1.82
–2.76
–1.73
–2.52
–1.97
–2.21
–2.51
–2.08
–2.41
–2.11
–2.73
–2.63
–2.87
–3.20
–2.79
–3.31
–3.15
–3.74
–3.29
–3.93
–2.36
–2.90
–2.89
–3.24
–3.69
–3.11
–3.91
–3.55
–4.43
–4.25
–4.56
–5.06
–4.21
–4.58
–4.44
–4.88
–5.10
–5.42
–4.11
–4.50
–4.81
–5.18
–5.01
–5.80
–4.99
–5.32
–5.45
–5.42
–6.08
–6.17
–4.67
–5.08
–5.53
–5.70
–6.20
–6.03
–5.64
–5.31
–5.57
–5.59
–5.84
–6.73
120°
125°
130°
135°
140°
145°
–1.22
–1.03
–1.50
–1.03
–0.13
–0.06
–2.72
–1.70
–1.85
–2.10
–1.22
–0.63
–3.33
–2.80
–1.72
–2.32
–2.05
–0.83
–2.66
–3.91
–2.85
–2.42
–2.99
–1.67
–3.98
–4.07
–4.55
–2.99
–3.71
–3.54
–3.79
–3.59
–4.69
–3.43
–2.66
–3.78
–4.40
–5.36
–4.98
–5.96
–3.65
–4.36
–5.64
–5.55
–6.00
–6.46
–4.82
–4.44
–6.02
–5.71
–6.65
–6.52
–5.83
–4.44
–6.54
–6.83
–7.11
–7.12
–7.22
–4.97
–7.01
–6.83
–6.86
–7.57
–7.61
–5.27
–6.94
–7.03
–7.07
–8.05
–7.97
–6.01
150°
155°
160°
165°
170°
175°
–0.99
–2.28
–2.77
–2.20
–1.37
–0.80
–1.19
–2.61
–3.59
–3.14
–2.17
–1.47
–0.86
–2.36
–4.07
–3.94
–2.67
–1.73
–0.91
–2.05
–4.30
–5.08
–3.67
–2.38
–1.91
–2.22
–4.40
–6.16
–5.05
–3.53
–2.25
–1.75
–3.68
–5.92
–5.04
–3.43
–4.00
–2.49
–3.83
–6.97
–6.58
–4.44
–4.96
–3.13
–3.91
–7.22
–7.54
–5.16
–5.44
–3.56
–3.89
–7.29
–8.10
–5.50
–6.22
–4.51
–4.27
–7.80
–9.31
–6.41
–6.29
–5.09
–4.31
–7.68
–9.97
–6.94
–6.25
–5.96
–4.55
–7.47
–10.55
–7.55
180°
185°
190°
195°
200°
205°
–0.61
–0.80
–1.37
–2.21
–2.83
–2.35
–1.24
–1.48
–2.18
–3.15
–3.60
–2.61
–1.44
–1.71
–2.59
–3.74
–3.88
–2.27
–1.90
–2.21
–3.27
–4.69
–4.45
–2.44
–2.95
–3.35
–4.69
–6.06
–4.95
–2.75
–2.87
–3.43
–5.16
–6.45
–3.98
–1.65
–3.70
–4.44
–6.46
–6.88
–3.80
–2.30
–4.29
–5.09
–7.38
–7.30
–3.83
–2.70
–4.55
–5.46
–7.88
–7.25
–3.89
–3.16
–5.35
–6.35
–8.86
–7.79
–4.28
–4.27
–5.70
–6.72
–9.68
–7.88
–4.53
–4.86
–6.16
–7.37
–10.28
–7.70
–4.62
–5.44
210°
215°
220°
225°
230°
235°
–1.02
–0.01
0.00
–0.88
–1.49
–1.10
–1.10
–0.44
–1.01
–2.05
–1.98
–1.85
–0.85
–0.85
–2.03
–2.39
–1.98
–2.89
–1.36
–2.02
–3.05
–2.32
–2.60
–3.67
–2.12
–3.28
–3.47
–3.07
–4.43
–4.14
–1.69
–3.11
–2.92
–3.71
–4.28
–3.82
–3.40
–4.21
–4.17
–5.53
–5.37
–5.30
–4.36
–4.69
–5.15
–6.07
–6.45
–5.17
–5.14
–4.99
–5.89
–6.58
–7.13
–5.30
–6.33
–5.37
–7.01
–7.39
–7.31
–6.33
–6.32
–5.33
–7.42
–8.27
–6.43
–6.42
–6.06
–6.28
–8.36
–8.33
–6.52
–6.33
240°
245°
250°
255°
260°
265°
–1.24
–2.13
–1.83
–1.03
–1.29
–1.35
–2.77
–2.76
–1.80
–2.13
–2.08
–1.42
–3.19
–2.05
–2.62
–2.25
–1.86
–2.20
–2.74
–3.52
–2.95
–2.28
–2.26
–2.17
–4.22
–3.98
–2.76
–3.27
–3.27
–3.64
–3.63
–2.60
–3.39
–3.20
–3.16
–2.24
–4.20
–4.72
–4.40
–4.57
–3.83
–3.73
–5.41
–4.83
–5.64
–4.41
–4.31
–4.32
–5.64
–5.62
–5.43
–4.71
–4.80
–4.39
–5.76
–7.11
–5.73
–5.26
–5.56
–4.95
–6.59
–6.51
–5.70
–6.15
–5.15
–5.04
–7.27
–6.29
–5.76
–5.48
–5.27
–5.52
270°
275°
280°
285°
290°
295°
–0.77
–0.93
–1.14
–0.75
–0.57
–0.74
–1.78
–1.64
–1.28
–1.60
–1.33
–0.75
–1.59
–1.81
–1.74
–1.14
–1.23
–0.96
–2.83
–1.95
–1.45
–1.29
–1.40
–1.88
–2.50
–2.42
–2.25
–2.81
–1.80
–1.73
–2.39
–2.64
–1.89
–1.89
–1.71
–1.68
–3.62
–3.40
–2.86
–2.91
–2.54
–2.02
–3.93
–3.29
–3.59
–3.24
–2.56
–2.52
–3.70
–4.35
–3.81
–3.11
–3.05
–2.53
–5.13
–4.45
–4.13
–4.11
–3.35
–2.80
–4.73
–4.75
–4.61
–3.49
–3.22
–3.55
–5.32
–5.12
–3.84
–3.49
–3.78
–3.09
300°
305°
310°
315°
320°
325°
–0.57
–0.13
0.01
–0.23
–0.36
–0.18
–0.92
–1.00
–0.50
–0.30
–0.57
–0.76
–0.61
–1.02
–0.91
–0.24
–0.09
–0.24
–0.92
–0.60
–0.70
–0.63
–0.74
–0.52
–1.60
–1.89
–1.24
–1.07
–0.94
–0.51
–1.10
–1.04
–0.87
–0.58
–0.02
–0.14
–1.98
–1.30
–1.42
–0.89
–1.40
–1.16
–2.00
–1.62
–1.87
–1.81
–1.05
–1.00
–1.97
–2.62
–1.82
–1.41
–1.27
–0.96
–3.48
–2.38
–2.35
–1.97
–1.34
–0.87
–2.60
–2.66
–1.76
–1.38
–1.57
–1.14
–2.56
–1.95
–1.91
–1.56
–0.93
–0.81
330°
335°
340°
345°
350°
355°
0.10
0.27
0.27
0.19
0.10
0.04
–0.51
–0.12
0.11
0.17
0.12
0.06
–0.20
–0.03
0.08
0.10
0.05
0.04
0.04
0.37
0.37
0.24
0.12
0.05
–0.54
–0.73
–0.62
–0.32
–0.11
–0.01
–0.19
0.07
0.19
0.11
0.01
0.01
–0.47
–0.40
–0.45
–0.34
–0.15
–0.02
–0.83
–0.53
–0.39
–0.30
–0.15
–0.03
–0.64
–0.10
0.08
–0.04
–0.11
–0.05
–1.05
–0.97
–0.52
–0.18
–0.02
0.04
–0.43
–0.19
–0.31
–0.37
–0.23
–0.06
–0.67
–0.22
–0.18
–0.14
–0.01
0.04
BE171211.book Page 95 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
95
Table A.39 Directional response for Hand-held Analyzer Type 2250 (including Microphone Type 4189), with Windscreen UA 1650 fitted and measured in a plane parallel to the long axis of Hand-held Analyzer, but perpendicular to
the display, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.00
–0.06
–0.12
–0.24
–0.56
–1.01
0.00
–0.06
–0.17
–0.30
–0.51
–0.94
0.00
–0.06
–0.22
–0.40
–0.42
–0.65
0.01
–0.05
–0.14
–0.20
–0.47
–0.82
–0.01
–0.08
–0.28
–0.47
–0.57
–0.96
0.00
0.00
–0.08
–0.41
–0.95
–1.47
–0.03
–0.05
–0.25
–0.41
–0.78
–1.20
–0.02
–0.16
–0.27
–0.71
–0.99
–1.21
–0.04
–0.01
–0.31
–0.41
–1.13
–1.25
0.00
–0.19
–0.32
–0.70
–1.06
–1.73
0.01
–0.12
–0.30
–0.55
–1.02
–1.40
30°
35°
40°
45°
50°
55°
–1.27
–1.46
–1.80
–2.01
–2.37
–2.88
–1.27
–1.83
–2.28
–2.57
–3.08
–3.32
–1.16
–1.27
–1.85
–2.30
–2.64
–3.33
–1.27
–1.71
–2.52
–2.76
–3.31
–3.82
–1.00
–1.33
–1.54
–2.10
–2.99
–3.66
–1.96
–2.53
–2.83
–3.45
–3.57
–4.40
–1.54
–2.33
–2.79
–3.30
–3.72
–4.82
–1.77
–2.23
–2.94
–3.50
–4.45
–4.36
–1.83
–2.23
–2.79
–3.39
–4.77
–5.60
–2.52
–3.18
–3.55
–3.94
–4.79
–5.96
–2.09
–2.83
–3.80
–4.56
–5.14
–6.05
60°
65°
70°
75°
80°
85°
–3.23
–4.09
–4.22
–4.87
–4.70
–5.44
–3.84
–4.38
–5.15
–5.41
–6.00
–5.99
–3.72
–4.22
–4.78
–5.62
–6.00
–6.45
–4.43
–5.05
–5.72
–6.07
–6.81
–7.50
–4.09
–4.56
–5.20
–6.07
–6.48
–6.86
–5.19
–5.96
–6.63
–7.34
–8.26
–8.70
–5.58
–6.33
–7.14
–7.84
–8.72
–9.28
–5.85
–7.25
–7.41
–8.66
–8.78
–9.31
–5.88
–6.76
–8.41
–8.90
–9.63
–9.75
–6.96
–7.53
–8.70
–9.92
–10.61
–11.37
–7.30
–8.52
–9.18
–10.11
–11.47
–12.20
90°
95°
100°
105°
110°
115°
–5.54
–6.37
–6.76
–7.23
–7.28
–7.54
–6.87
–7.45
–7.21
–7.53
–7.50
–7.94
–6.91
–7.48
–8.77
–8.51
–8.49
–8.55
–7.84
–8.37
–8.58
–8.63
–8.78
–8.43
–7.88
–7.99
–8.21
–9.75
–9.89
–9.83
–8.94
–9.57
–10.07
–10.54
–10.89
–11.65
–9.72
–10.13
–10.63
–11.84
–12.90
–13.14
–10.34
–10.54
–10.37
–11.88
–11.69
–11.04
–11.14
–12.82
–13.02
–13.03
–13.83
–14.13
–11.86
–13.80
–13.77
–13.44
–14.71
–16.45
–13.38
–14.01
–14.43
–14.61
–15.72
–16.74
120°
125°
130°
135°
140°
145°
–7.18
–7.88
–8.33
–8.79
–8.95
–7.50
–8.47
–9.38
–9.18
–9.33
–10.00
–9.15
–8.93
–8.63
–8.65
–9.87
–10.75
–9.55
–9.50
–9.68
–10.39
–11.15
–11.58
–11.20
–10.13
–10.80
–11.49
–10.55
–10.92
–11.41
–10.81
–11.54
–11.79
–11.92
–12.94
–13.79
–12.42
–12.14
–12.39
–13.31
–14.74
–15.32
–12.40
–13.05
–13.38
–14.78
–15.95
–14.95
–15.11
–14.12
–14.50
–14.76
–14.69
–16.10
–15.76
–15.30
–16.35
–15.78
–16.74
–18.16
–17.32
–16.03
–16.58
–16.87
–17.19
–20.03
150°
155°
160°
165°
170°
175°
–6.79
–7.20
–5.40
–7.84
–11.61
–8.38
–6.93
–8.30
–5.82
–7.85
–12.89
–9.27
–6.90
–8.37
–6.14
–7.21
–13.05
–10.09
–8.28
–9.24
–7.70
–8.23
–13.66
–11.86
–9.47
–9.64
–8.66
–8.36
–13.81
–12.66
–11.87
–10.85
–10.62
–9.69
–14.46
–14.21
–12.65
–10.30
–11.23
–9.62
–14.70
–14.36
–12.56
–10.32
–12.54
–10.01
–17.19
–15.17
–14.56
–13.04
–14.56
–12.76
–17.56
–17.06
–17.98
–14.86
–15.22
–13.10
–16.35
–20.06
–18.73
–14.94
–14.77
–14.09
–16.61
–20.44
180°
185°
190°
195°
200°
205°
–6.83
–8.16
–11.33
–7.89
–5.20
–6.50
–7.42
–8.92
–12.23
–7.93
–5.56
–7.60
–7.88
–9.42
–12.32
–7.35
–5.74
–8.13
–9.39
–11.04
–13.31
–8.59
–7.64
–9.64
–10.19
–12.02
–14.11
–8.91
–8.84
–10.15
–11.58
–13.66
–14.83
–10.30
–10.73
–11.03
–11.57
–13.34
–14.96
–10.37
–11.07
–10.49
–11.98
–15.23
–14.30
–11.51
–11.91
–11.42
–14.26
–18.00
–16.56
–12.61
–13.96
–12.79
–14.95
–17.66
–17.92
–13.31
–14.80
–14.23
–16.25
–20.12
–17.46
–14.19
–14.20
–15.11
210°
215°
220°
225°
230°
235°
–6.83
–7.98
–9.29
–8.66
–7.61
–7.23
–7.34
–9.44
–10.71
–8.84
–8.42
–8.96
–7.74
–10.37
–10.98
–8.65
–7.92
–9.05
–9.14
–11.11
–10.94
–9.76
–9.30
–10.37
–10.33
–11.01
–9.92
–9.75
–10.88
–11.24
–12.17
–12.90
–12.04
–11.53
–11.97
–11.13
–12.24
–13.94
–13.58
–12.56
–12.95
–11.09
–11.83
–13.30
–13.58
–12.60
–12.69
–10.73
–14.32
–15.26
–13.13
–13.87
–12.27
–13.42
–16.27
–18.13
–16.86
–17.17
–15.46
–15.82
–18.02
–18.61
–16.33
–17.24
–15.71
–15.52
240°
245°
250°
255°
260°
265°
–7.60
–7.10
–7.40
–6.55
–6.65
–6.11
–8.83
–7.77
–7.05
–7.06
–7.14
–7.19
–8.95
–8.62
–7.45
–7.84
–8.29
–7.40
–8.90
–7.60
–8.12
–8.98
–8.56
–7.26
–9.39
–8.77
–10.16
–9.09
–7.37
–7.10
–10.08
–10.96
–11.34
–10.26
–9.15
–9.56
–10.87
–12.46
–11.63
–10.50
–10.18
–9.52
–12.31
–12.41
–11.94
–11.54
–10.43
–10.00
–14.99
–13.21
–12.51
–12.06
–11.93
–10.74
–16.27
–15.26
–14.36
–13.46
–13.37
–13.24
–16.95
–15.36
–14.66
–14.18
–13.88
–13.58
270°
275°
280°
285°
290°
295°
–5.86
–4.70
–4.27
–4.87
–4.24
–3.41
–6.15
–5.30
–5.96
–5.36
–4.44
–3.86
–5.79
–6.23
–5.97
–4.80
–4.36
–4.54
–7.41
–7.40
–6.01
–5.64
–6.28
–4.77
–8.02
–6.31
–5.84
–6.49
–4.63
–3.99
–8.38
–7.70
–8.21
–6.59
–5.92
–5.80
–8.92
–9.02
–7.98
–6.86
–6.57
–5.92
–10.53
–9.74
–8.52
–7.84
–6.70
–6.10
–10.72
–9.15
–8.79
–8.24
–7.18
–5.87
–11.56
–10.62
–10.46
–9.12
–8.16
–7.02
–12.05
–11.79
–10.66
–9.74
–9.10
–8.35
300°
305°
310°
315°
320°
325°
–2.76
–2.90
–2.30
–1.78
–1.46
–1.17
–3.81
–3.23
–2.64
–2.07
–1.87
–1.90
–3.57
–2.71
–2.27
–2.37
–2.17
–1.08
–3.77
–3.81
–3.85
–2.63
–1.95
–1.47
–4.08
–3.73
–2.37
–1.75
–1.48
–1.58
–4.92
–3.54
–3.52
–3.29
–2.49
–1.81
–4.78
–4.40
–3.68
–2.94
–2.40
–2.21
–5.31
–4.35
–3.82
–3.42
–2.54
–1.89
–5.66
–4.68
–3.88
–3.06
–2.38
–1.88
–6.62
–5.75
–4.54
–3.60
–3.26
–2.69
–7.14
–5.73
–4.99
–4.31
–3.43
–2.66
330°
335°
340°
345°
350°
355°
–0.95
–0.97
–0.80
–0.33
–0.08
0.00
–1.42
–0.94
–0.32
–0.16
–0.09
0.01
–0.75
–0.10
0.09
0.09
0.07
0.04
–1.26
–1.34
–1.04
–0.50
–0.20
–0.04
–0.79
–0.24
0.10
–0.06
–0.11
–0.02
–1.68
–1.43
–1.17
–0.65
–0.25
–0.03
–1.55
–0.78
–0.32
–0.07
0.08
0.06
–1.20
–0.90
–0.84
–0.47
–0.05
0.08
–1.57
–1.15
–1.03
–0.54
–0.03
–0.02
–2.11
–1.49
–1.02
–0.58
–0.24
0.00
–1.95
–1.21
–0.66
–0.38
–0.17
0.13
BE171211.book Page 96 Thursday, May 27, 2004 1:01 PM
96
Hand-held Analyzer Type 2250 – Instruction Manual
Table A.40 Sensitivity variations of Hand-held Analyzer Type 2250 (including Microphone Type 4189) and Windscreen UA 1650 fitted, at sound incidence angles within ±θ ° from the reference direction.
Nominal
Frequency
Exact
Frequency
Max Variation
± 30°
Max Variation Max Variation
± 90°
± 150°
500 Hz
630 Hz
501.187 Hz
630.957 Hz
0.08
0.10
0.39
0.26
0.69
0.59
800 Hz
1000 Hz
1250 Hz
794.328 Hz
1000 Hz
1258.93 Hz
0.07
0.07
0.06
0.38
0.44
0.24
0.63
0.89
1.12
1600 Hz
2000 Hz
2240 Hz
2500 Hz
1584.89 Hz
1995.26 Hz
2238.72 Hz
2511.89 Hz
0.19
0.36
0.16
0.41
0.85
1.05
1.20
1.30
1.30
1.55
1.64
1.74
2800 Hz
3150 Hz
3550 Hz
4000 Hz
2818.38 Hz
3162.28 Hz
3548.13 Hz
3981.07 Hz
0.17
0.51
0.22
0.29
1.04
1.36
1.40
1.60
1.87
1.95
2.07
2.43
4500 Hz
5000 Hz
5600 Hz
6300 Hz
4466.84 Hz
5011.87 Hz
5623.41 Hz
6309.57 Hz
0.67
0.49
0.43
0.74
2.21
1.90
3.20
3.13
2.93
3.42
4.28
4.76
7100 Hz
8000 Hz
8500 Hz
9000 Hz
7079.46 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
0.56
0.73
0.97
0.86
2.87
3.92
4.21
4.60
4.88
5.97
6.91
7.62
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
1.10
0.68
0.86
1.31
5.17
5.31
5.69
6.02
8.02
8.44
8.82
9.70
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
1.42
1.25
1.60
1.09
6.87
7.00
7.85
8.11
11.40
11.51
12.08
12.49
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
2.17
1.63
1.84
1.87
8.94
9.80
10.63
11.18
15.15
15.40
16.91
17.55
19000 Hz
20000 Hz
18836.5 Hz
19952.6 Hz
2.52
2.22
12.34
13.51
20.64
20.16
BE171211.book Page 97 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
97
Table A.41 Influence of Outdoor Microphone Kit UA 1404 on the directional response of Microphone Type 4189
only, with Outdoor Microphone Kit UA 1404 fitted, 500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1600 Hz
2000 Hz
2240 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
0.00
0.05
0.04
0.04
0.02
0.01
0.00
0.06
0.06
0.05
0.04
0.02
0.00
0.08
0.08
0.08
0.06
0.04
1000 Hz
0.00
0.02
0.01
0.02
0.00
0.00
1250 Hz
0.00
0.01
0.00
0.00
0.00
0.01
0.00
0.00
–0.01
–0.02
–0.03
–0.04
0.00
–0.01
–0.02
–0.04
–0.07
–0.11
0.00
0.00
–0.01
–0.04
–0.06
–0.09
0.00
–0.01
–0.02
–0.03
–0.04
–0.07
0.00
0.00
–0.01
–0.01
–0.01
0.00
0.00
–0.01
–0.02
–0.05
–0.08
–0.13
0.00
–0.01
–0.06
–0.13
–0.20
–0.28
30°
35°
40°
45°
50°
55°
–0.03
–0.02
–0.03
–0.03
–0.02
–0.02
–0.03
–0.01
–0.02
–0.02
–0.02
–0.01
–0.02
0.01
–0.01
–0.01
0.00
0.00
0.00
–0.02
–0.05
–0.07
–0.09
–0.10
0.01
0.02
0.02
0.02
0.02
0.00
–0.06
–0.08
–0.10
–0.10
–0.09
–0.07
–0.14
–0.19
–0.23
–0.27
–0.31
–0.35
–0.12
–0.18
–0.24
–0.30
–0.36
–0.41
–0.11
–0.15
–0.20
–0.24
–0.28
–0.34
0.01
0.00
–0.02
–0.06
–0.10
–0.14
–0.18
–0.23
–0.24
–0.21
–0.16
–0.16
–0.32
–0.37
–0.41
–0.49
–0.57
–0.59
60°
65°
70°
75°
80°
85°
–0.05
–0.02
–0.02
–0.02
–0.02
–0.03
–0.07
–0.02
–0.02
–0.02
–0.02
–0.03
–0.08
0.00
–0.01
–0.01
–0.01
–0.02
–0.10
–0.11
–0.11
–0.11
–0.11
–0.10
–0.02
–0.05
–0.06
–0.07
–0.09
–0.08
–0.05
–0.03
–0.01
–0.02
–0.05
–0.07
–0.39
–0.42
–0.41
–0.37
–0.30
–0.24
–0.46
–0.50
–0.55
–0.58
–0.57
–0.49
–0.42
–0.50
–0.54
–0.59
–0.64
–0.68
–0.17
–0.22
–0.30
–0.38
–0.43
–0.48
–0.20
–0.25
–0.26
–0.28
–0.37
–0.46
–0.52
–0.44
–0.45
–0.54
–0.53
–0.53
90°
95°
100°
105°
110°
115°
–0.05
–0.04
–0.04
–0.05
–0.06
–0.06
–0.07
–0.03
–0.04
–0.06
–0.06
–0.07
–0.08
–0.03
–0.04
–0.06
–0.06
–0.08
–0.10
–0.10
–0.10
–0.11
–0.12
–0.13
–0.07
–0.05
–0.02
–0.01
–0.01
–0.02
–0.09
–0.09
–0.06
–0.01
0.03
0.07
–0.22
–0.24
–0.28
–0.29
–0.24
–0.15
–0.38
–0.32
–0.34
–0.39
–0.41
–0.33
–0.62
–0.48
–0.36
–0.36
–0.44
–0.46
–0.54
–0.55
–0.39
–0.21
–0.20
–0.31
–0.49
–0.55
–0.62
–0.48
–0.22
–0.18
–0.64
–0.73
–0.72
–0.79
–0.71
–0.35
120°
125°
130°
135°
140°
145°
–0.07
–0.08
–0.08
–0.08
–0.07
–0.05
–0.10
–0.09
–0.09
–0.09
–0.07
–0.05
–0.13
–0.09
–0.10
–0.09
–0.08
–0.05
–0.15
–0.17
–0.17
–0.18
–0.16
–0.13
–0.05
–0.08
–0.10
–0.12
–0.11
–0.08
0.07
0.05
0.00
–0.05
–0.07
–0.05
–0.06
–0.01
–0.03
–0.10
–0.18
–0.20
–0.20
–0.08
–0.04
–0.11
–0.22
–0.28
–0.33
–0.13
0.00
–0.01
–0.15
–0.28
–0.32
–0.13
0.15
0.27
0.16
–0.04
–0.35
–0.34
–0.01
0.35
0.40
0.15
–0.27
–0.50
–0.43
0.13
0.55
0.43
150°
155°
160°
165°
170°
175°
–0.05
–0.02
–0.01
0.01
0.02
0.02
–0.07
–0.02
0.00
0.02
0.03
0.03
–0.09
–0.01
0.02
0.04
0.05
0.06
–0.11
–0.07
–0.03
–0.01
0.02
0.04
–0.03
0.03
0.09
0.13
0.17
0.19
0.00
0.09
0.18
0.26
0.32
0.36
–0.16
–0.05
0.09
0.22
0.32
0.37
–0.26
–0.14
0.04
0.21
0.33
0.42
–0.30
–0.18
0.05
0.27
0.44
0.54
–0.15
–0.05
0.21
0.51
0.75
0.89
–0.10
–0.08
0.23
0.63
0.95
1.15
0.01
–0.19
0.08
0.61
1.07
1.35
180°
185°
190°
195°
200°
205°
0.00
0.02
0.02
0.01
–0.01
–0.02
0.00
0.03
0.03
0.02
0.00
–0.02
0.01
0.06
0.05
0.04
0.02
–0.01
0.04
0.03
0.01
0.00
–0.03
–0.07
0.20
0.19
0.17
0.13
0.08
0.02
0.37
0.36
0.32
0.26
0.18
0.09
0.39
0.38
0.32
0.22
0.09
–0.04
0.44
0.42
0.34
0.21
0.04
–0.13
0.58
0.55
0.44
0.27
0.05
–0.16
0.94
0.89
0.75
0.52
0.22
–0.05
1.22
1.15
0.96
0.63
0.24
–0.07
1.45
1.35
1.07
0.62
0.09
–0.18
210°
215°
220°
225°
230°
235°
–0.05
–0.05
–0.07
–0.08
–0.08
–0.08
–0.07
–0.05
–0.07
–0.09
–0.09
–0.09
–0.09
–0.05
–0.08
–0.09
–0.10
–0.09
–0.11
–0.14
–0.17
–0.18
–0.18
–0.17
–0.03
–0.07
–0.11
–0.11
–0.10
–0.08
0.01
–0.05
–0.06
–0.04
0.01
0.05
–0.15
–0.19
–0.17
–0.10
–0.02
0.00
–0.25
–0.28
–0.21
–0.10
–0.03
–0.07
–0.30
–0.27
–0.14
0.00
0.01
–0.12
–0.15
–0.04
0.17
0.28
0.16
–0.11
–0.10
0.16
0.41
0.36
0.01
–0.32
0.02
0.45
0.58
0.16
–0.39
–0.46
240°
245°
250°
255°
260°
265°
–0.07
–0.06
–0.06
–0.05
–0.04
–0.04
–0.10
–0.07
–0.06
–0.06
–0.04
–0.03
–0.13
–0.08
–0.06
–0.06
–0.04
–0.03
–0.17
–0.15
–0.12
–0.11
–0.11
–0.10
–0.04
–0.02
–0.01
–0.01
–0.02
–0.04
0.08
0.07
0.04
–0.01
–0.06
–0.08
–0.05
–0.14
–0.24
–0.28
–0.27
–0.23
–0.18
–0.32
–0.39
–0.38
–0.32
–0.31
–0.32
–0.44
–0.42
–0.35
–0.35
–0.47
–0.31
–0.29
–0.18
–0.20
–0.39
–0.55
–0.32
–0.16
–0.20
–0.48
–0.62
–0.56
–0.25
–0.33
–0.70
–0.81
–0.75
–0.76
270°
275°
280°
285°
290°
295°
–0.05
–0.03
–0.02
–0.02
–0.02
–0.02
–0.07
–0.03
–0.02
–0.02
–0.02
–0.02
–0.08
–0.02
–0.01
–0.01
–0.01
0.00
–0.10
–0.11
–0.12
–0.12
–0.12
–0.11
–0.07
–0.08
–0.09
–0.08
–0.06
–0.04
–0.08
–0.06
–0.03
–0.01
0.00
–0.02
–0.21
–0.24
–0.30
–0.37
–0.42
–0.42
–0.38
–0.49
–0.58
–0.59
–0.56
–0.52
–0.62
–0.68
–0.65
–0.60
–0.56
–0.51
–0.55
–0.50
–0.46
–0.40
–0.31
–0.22
–0.52
–0.49
–0.38
–0.28
–0.25
–0.23
–0.66
–0.53
–0.51
–0.51
–0.43
–0.43
300°
305°
310°
315°
320°
325°
–0.05
–0.02
–0.02
–0.03
–0.03
–0.02
–0.07
–0.01
–0.02
–0.02
–0.02
–0.01
–0.08
0.00
0.00
–0.01
–0.01
0.01
–0.12
–0.11
–0.10
–0.08
–0.07
–0.04
–0.03
0.00
0.01
0.02
0.02
0.01
–0.04
–0.07
–0.09
–0.10
–0.10
–0.08
–0.40
–0.36
–0.32
–0.29
–0.24
–0.21
–0.48
–0.43
–0.37
–0.30
–0.23
–0.18
–0.43
–0.34
–0.28
–0.23
–0.18
–0.13
–0.17
–0.14
–0.09
–0.04
–0.01
0.01
–0.18
–0.15
–0.17
–0.21
–0.25
–0.24
–0.54
–0.62
–0.59
–0.50
–0.43
–0.37
330°
335°
340°
345°
350°
355°
–0.03
0.01
0.02
0.04
0.04
0.05
–0.03
0.02
0.04
0.05
0.06
0.06
–0.02
0.04
0.06
0.08
0.08
0.08
–0.02
–0.03
–0.03
–0.02
–0.02
–0.02
0.00
0.00
–0.01
–0.01
–0.01
–0.01
–0.06
–0.05
–0.03
–0.02
–0.01
–0.01
–0.16
–0.12
–0.08
–0.05
–0.03
–0.02
–0.13
–0.09
–0.06
–0.03
–0.02
–0.01
–0.09
–0.06
–0.03
–0.02
–0.01
0.01
0.01
0.00
–0.01
–0.01
0.00
0.00
–0.19
–0.14
–0.09
–0.06
–0.04
–0.02
–0.33
–0.28
–0.20
–0.13
–0.07
–0.03
BE171211.book Page 98 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
98
Table A.42 Influence of Outdoor Microphone Kit UA 1404 on the directional response of Microphone Type 4189
only, with Outdoor Microphone Kit UA 1404 fitted, 4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
0°
5°
10°
15°
20°
25°
0.00
–0.01
–0.03
–0.09
–0.14
–0.20
0.00
–0.01
–0.04
–0.09
–0.15
–0.20
0.00
–0.03
–0.08
–0.19
–0.30
–0.39
0.00
–0.04
–0.10
–0.20
–0.34
–0.47
0.00
–0.04
–0.14
–0.29
–0.49
–0.75
0.00
–0.07
–0.19
–0.39
–0.61
–0.81
0.00
–0.07
–0.20
–0.41
–0.69
–1.06
0.00
–0.07
–0.23
–0.48
–0.80
–1.19
0.00
–0.07
–0.19
–0.38
–0.70
–1.11
0.00
–0.08
–0.25
–0.55
–1.01
–1.53
10000 Hz 10600 Hz
0.00
–0.07
–0.23
–0.52
–0.97
–1.52
0.00
–0.10
–0.34
–0.73
–1.24
–1.78
30°
35°
40°
45°
50°
55°
–0.29
–0.45
–0.63
–0.80
–0.85
–0.83
–0.28
–0.42
–0.57
–0.67
–0.78
–1.00
–0.46
–0.58
–0.75
–0.82
–0.88
–1.04
–0.64
–0.90
–1.30
–1.54
–1.56
–1.63
–1.02
–1.29
–1.54
–1.72
–1.86
–2.14
–1.03
–1.32
–1.70
–1.91
–2.15
–2.37
–1.49
–1.88
–2.26
–2.56
–2.57
–2.50
–1.54
–1.83
–2.16
–2.42
–2.60
–2.68
–1.52
–1.86
–2.15
–2.22
–2.26
–2.20
–1.80
–1.93
–2.13
–2.27
–2.29
–2.11
–1.88
–2.23
–2.49
–2.33
–2.09
–2.11
–1.98
–2.12
–2.34
–2.38
–2.22
–1.72
60°
65°
70°
75°
80°
85°
–0.87
–0.96
–0.93
–0.79
–0.80
–0.93
–1.19
–1.15
–1.08
–1.18
–1.18
–0.99
–1.16
–1.32
–1.59
–1.53
–1.31
–1.31
–1.67
–1.71
–1.85
–1.97
–2.18
–1.86
–2.42
–2.24
–2.18
–1.90
–1.75
–1.66
–2.39
–2.36
–2.37
–1.93
–1.48
–0.93
–2.44
–2.22
–1.90
–1.34
–0.89
–0.28
–2.35
–2.04
–1.54
–1.15
–0.50
0.13
–2.08
–1.58
–0.99
–0.43
–0.14
0.46
–1.68
–1.20
–0.61
0.11
0.71
0.87
–1.70
–1.14
–0.49
0.01
0.91
1.59
–1.07
–0.72
–0.06
0.52
0.98
1.85
90°
95°
100°
110°
115°
–0.92
–0.91
–1.02
–1.02
–0.88
–1.03
–1.08
–1.01
–0.98
–0.94
–1.14
–0.90
–0.88
–0.62
–0.49
–1.51
–1.22
–0.77
–0.46
–0.27
–1.63
–1.00
–0.64
0.10
0.22
–0.51
–0.36
0.12
0.82
1.03
0.08
0.58
0.85
1.41
1.72
0.76
1.01
1.40
2.03
2.20
1.19
1.74
1.99
2.54
2.81
1.35
2.22
2.65
3.17
3.51
1.75
2.22
2.97
3.52
3.79
2.55
2.80
3.35
4.06
4.32
120°
125°
130°
135°
140°
145°
–0.48
–0.36
–0.58
–0.36
0.42
0.80
–0.68
–0.14
–0.14
–0.34
0.25
1.16
–0.44
–0.05
0.52
0.40
0.33
1.26
–0.14
–0.05
0.41
0.74
0.51
0.87
0.36
0.42
0.48
1.00
1.02
0.91
1.07
1.18
1.17
1.35
1.69
1.48
1.85
1.83
1.86
1.79
2.09
1.93
2.46
2.51
2.53
2.38
2.53
2.44
3.08
3.15
3.09
2.96
2.95
2.97
3.66
3.81
3.74
3.68
3.57
3.65
3.97
4.12
4.12
4.07
3.85
4.00
4.54
4.66
4.80
4.77
4.55
4.70
150°
155°
160°
165°
170°
175°
0.43
–0.10
–0.10
0.44
1.04
1.44
1.20
0.55
0.18
0.59
1.28
1.78
1.98
1.60
0.94
1.03
1.68
2.25
1.91
1.97
1.25
1.13
1.74
2.35
1.81
2.41
1.82
1.50
2.09
2.79
1.93
2.91
2.52
1.96
2.58
3.43
1.87
2.88
2.87
2.00
2.50
3.54
2.18
3.07
3.32
2.33
2.67
3.79
2.53
3.18
3.70
2.61
2.79
4.00
3.10
3.41
4.14
3.03
2.98
4.25
3.38
3.43
4.26
3.20
2.92
4.25
4.14
3.92
4.76
3.75
3.22
4.63
180°
185°
190°
195°
200°
205°
1.58
1.45
1.05
0.44
–0.10
–0.08
1.95
1.79
1.28
0.59
0.19
0.57
2.46
2.26
1.70
1.06
0.99
1.65
2.58
2.37
1.77
1.16
1.30
2.01
3.05
2.80
2.13
1.54
1.86
2.44
3.76
3.45
2.61
2.00
2.55
2.92
3.94
3.54
2.50
2.02
2.89
2.90
4.24
3.80
2.68
2.34
3.36
3.15
4.51
4.01
2.80
2.65
3.79
3.33
4.80
4.25
2.99
3.09
4.27
3.57
4.86
4.26
2.98
3.34
4.46
3.60
5.32
4.67
3.33
3.93
4.93
4.00
210°
215°
220°
225°
230°
235°
0.45
0.82
0.45
–0.33
–0.55
–0.35
1.22
1.19
0.28
–0.31
–0.12
–0.12
2.04
1.32
0.38
0.44
0.55
–0.03
1.94
0.89
0.52
0.74
0.41
–0.07
1.82
0.91
1.04
1.03
0.51
0.42
1.94
1.52
1.77
1.45
1.24
1.22
1.92
2.01
2.17
1.84
1.90
1.83
2.31
2.57
2.63
2.42
2.51
2.45
2.69
3.08
3.02
3.01
3.05
3.05
3.20
3.71
3.63
3.70
3.65
3.72
3.47
4.08
3.91
3.98
3.91
4.00
4.17
4.75
4.53
4.55
4.58
4.57
240°
245°
250°
255°
260°
265°
–0.45
–0.88
–1.03
–1.06
–1.04
–0.92
–0.68
–0.97
–1.01
–1.03
–1.04
–1.08
–0.43
–0.51
–0.65
–0.81
–0.86
–0.87
–0.20
–0.33
–0.51
–0.62
–0.78
–1.29
0.32
0.18
0.10
–0.14
–0.69
–1.07
1.10
1.09
0.88
0.41
0.07
–0.35
1.87
1.72
1.36
1.07
0.82
0.59
2.42
2.18
1.96
1.55
1.40
0.96
3.02
2.78
2.45
2.20
1.98
1.64
3.66
3.42
3.01
2.91
2.57
2.07
3.85
3.49
3.32
3.17
2.72
2.03
4.31
4.02
4.01
3.66
3.14
2.73
270°
275°
280°
285°
290°
295°
–0.91
–0.92
–0.80
–0.80
–0.97
–1.01
–1.01
–0.98
–1.21
–1.23
–1.13
–1.17
–1.15
–1.37
–1.37
–1.56
–1.57
–1.29
–1.60
–1.93
–2.19
–1.96
–1.86
–1.77
–1.66
–1.64
–1.75
–1.96
–2.25
–2.27
–0.46
–0.92
–1.54
–1.96
–2.34
–2.32
0.01
–0.39
–0.92
–1.33
–1.98
–2.34
0.63
0.08
–0.49
–1.22
–1.66
–2.04
1.10
0.45
–0.22
–0.56
–0.96
–1.50
1.31
0.80
0.57
0.10
–0.58
–1.28
1.62
1.39
0.83
0.00
–0.61
–1.21
2.41
1.76
1.00
0.45
–0.09
–0.73
300°
305°
310°
315°
320°
325°
–0.92
–0.86
–0.85
–0.78
–0.61
–0.42
–1.18
–0.98
–0.74
–0.64
–0.56
–0.42
–1.16
–1.07
–0.94
–0.88
–0.82
–0.62
–1.77
–1.70
–1.57
–1.52
–1.27
–0.88
–2.41
–2.13
–1.86
–1.76
–1.58
–1.34
–2.42
–2.46
–2.21
–1.93
–1.64
–1.25
–2.46
–2.44
–2.51
–2.57
–2.30
–1.91
–2.26
–2.67
–2.67
–2.47
–2.13
–1.76
–2.13
–2.29
–2.26
–2.16
–2.13
–1.92
–1.73
–2.07
–2.28
–2.37
–2.22
–1.93
–1.72
–2.22
–2.24
–2.33
–2.40
–2.15
–1.20
–1.78
–2.12
–2.28
–2.35
–2.17
330°
335°
340°
345°
350°
355°
–0.26
–0.17
–0.11
–0.05
0.00
0.03
–0.30
–0.22
–0.16
–0.11
–0.06
–0.03
–0.49
–0.38
–0.28
–0.16
–0.06
0.01
–0.62
–0.46
–0.33
–0.19
–0.10
–0.03
–1.06
–0.77
–0.49
–0.27
–0.10
–0.01
–0.95
–0.75
–0.56
–0.37
–0.19
–0.07
–1.46
–0.99
–0.59
–0.29
–0.11
0.02
–1.47
–1.15
–0.79
–0.49
–0.25
–0.09
–1.59
–1.16
–0.69
–0.36
–0.15
–0.03
–1.72
–1.42
–0.90
–0.47
–0.19
–0.03
–1.86
–1.55
–1.01
–0.56
–0.28
–0.10
–2.00
–1.76
–1.18
–0.65
–0.28
–0.04
BE171211.book Page 99 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
99
Table A.43 Influence of Outdoor Microphone Kit UA 1404 on the directional response of Microphone Type 4189
only, with Outdoor Microphone Kit UA 1404 fitted, 11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.00
–0.11
–0.36
–0.72
–1.17
–1.70
0.00
–0.12
–0.40
–0.86
–1.40
–1.94
0.00
–0.11
–0.40
–0.85
–1.36
–1.76
0.00
–0.12
–0.46
–0.93
–1.41
–1.90
0.00
–0.12
–0.46
–1.00
–1.61
–2.10
0.00
–0.15
–0.59
–1.27
–1.98
–2.32
0.00
–0.14
–0.57
–1.19
–1.84
–2.31
0.00
–0.12
–0.48
–1.08
–1.78
–2.27
0.00
–0.10
–0.39
–0.97
–1.77
–2.27
0.00
–0.14
–0.50
–1.13
–2.09
–2.75
0.00
–0.19
–0.61
–1.25
–2.23
–3.11
30°
35°
40°
45°
50°
55°
–2.09
–2.38
–2.58
–2.32
–2.23
–2.19
–2.32
–2.42
–2.54
–2.52
–2.43
–1.94
–2.00
–2.30
–2.55
–2.58
–2.29
–1.94
–2.34
–2.55
–2.58
–2.50
–2.44
–1.79
–2.55
–2.72
–2.87
–2.98
–2.35
–1.33
–2.57
–2.84
–3.03
–2.82
–1.84
–0.68
–2.78
–3.31
–3.21
–2.68
–1.66
–0.07
–2.88
–3.27
–3.12
–2.36
–0.71
1.17
–2.81
–3.19
–2.71
–1.69
0.18
1.79
–3.30
–3.51
–2.80
–1.37
0.68
1.95
–3.67
–3.85
–2.74
–0.75
1.23
2.53
60°
65°
70°
75°
80°
85°
–1.35
–0.54
0.12
0.79
1.63
2.08
–1.26
–0.73
0.35
1.02
1.71
2.78
–1.01
–0.04
1.06
2.07
2.61
3.05
–0.60
0.12
1.37
2.41
3.13
3.85
–0.31
1.06
2.24
3.05
3.69
4.02
0.74
1.75
2.78
3.66
4.15
4.97
1.40
2.72
3.72
4.18
4.66
4.89
2.47
3.78
4.28
4.94
5.54
6.24
3.22
4.12
5.18
5.93
6.67
6.95
3.54
4.56
5.66
6.40
7.19
8.29
3.88
4.79
5.78
7.03
8.36
9.46
90°
95°
100°
105°
110°
115°
2.70
3.24
3.55
3.98
4.13
4.48
3.26
3.54
3.84
4.40
4.55
4.73
3.93
4.52
4.44
4.81
5.22
5.18
4.01
4.70
5.14
5.09
5.70
5.81
4.94
5.09
5.73
6.13
6.31
7.02
5.03
5.85
6.24
7.08
7.05
7.95
6.15
6.27
6.95
7.84
8.17
8.73
6.73
7.79
8.14
8.98
9.72
10.18
8.19
9.03
9.63
10.35
11.21
11.86
8.97
10.26
11.01
11.59
12.30
13.01
10.33
11.75
12.47
13.24
13.50
14.54
120°
125°
130°
135°
140°
145°
4.75
4.76
4.94
4.96
4.93
5.00
5.07
5.04
5.23
5.41
5.41
5.33
5.62
5.74
5.61
6.00
6.14
5.97
6.00
6.42
6.16
6.43
6.78
6.68
6.93
7.58
7.36
7.32
7.80
7.86
7.99
8.40
8.74
8.39
8.68
9.00
9.47
9.49
10.09
9.79
9.80
10.23
11.11
11.11
11.71
11.72
11.49
11.79
12.44
12.99
13.18
13.49
13.30
13.46
13.57
14.16
14.41
14.82
14.47
14.85
14.69
15.30
15.57
16.08
16.03
16.03
150°
155°
160°
165°
170°
175°
4.65
4.10
4.90
4.01
3.16
4.67
5.35
4.67
5.26
4.63
3.36
4.85
6.17
5.41
5.81
5.44
3.77
5.24
6.90
6.13
6.34
6.26
4.23
5.45
7.96
7.26
7.11
7.30
4.97
5.86
8.99
8.46
7.93
8.33
5.97
6.46
10.23
10.00
9.13
9.44
7.07
7.28
11.79
11.93
10.88
11.02
8.70
8.57
13.27
13.53
12.52
12.43
10.22
9.80
14.61
14.64
13.87
13.59
11.43
10.79
16.33
16.03
15.18
14.88
12.87
12.06
180°
185°
190°
195°
200°
205°
5.46
4.76
3.33
4.22
5.02
4.10
5.75
4.94
3.52
4.74
5.22
4.56
6.24
5.29
3.82
5.40
5.67
5.28
6.56
5.45
4.19
6.17
6.25
6.05
7.00
5.80
4.89
7.21
7.04
7.10
7.61
6.42
5.97
8.37
7.85
8.26
8.47
7.33
7.22
9.54
8.95
9.80
9.79
8.69
8.87
10.99
10.59
11.77
10.95
9.86
10.18
12.10
12.14
13.26
11.92
10.71
11.17
13.20
13.48
14.50
13.29
12.13
13.16
15.37
15.72
16.91
210°
215°
220°
225°
230°
235°
4.62
4.98
4.77
4.68
4.76
4.64
5.32
5.34
5.27
5.09
4.99
4.82
6.10
5.87
5.85
5.58
5.46
5.43
6.84
6.60
6.39
6.06
6.08
5.92
7.83
7.58
7.17
7.04
7.05
6.91
8.86
8.55
8.10
8.18
8.09
7.99
10.04
9.72
9.45
9.46
9.50
9.27
11.58
11.44
11.11
11.42
11.29
10.90
13.07
12.88
12.81
13.09
12.72
12.66
14.48
14.08
14.37
14.33
14.17
13.81
16.61
16.42
16.56
16.40
16.18
15.69
240°
245°
250°
255°
260°
265°
4.42
4.24
4.02
3.72
3.39
3.08
4.73
4.58
4.36
4.10
3.67
3.30
5.13
4.97
4.87
4.50
4.19
4.20
5.67
5.60
5.22
4.91
4.78
4.47
6.76
6.46
5.98
5.82
5.35
4.96
7.66
7.38
6.75
6.54
5.97
5.54
8.99
8.38
7.80
7.48
6.77
5.98
10.74
9.94
9.38
8.83
7.93
7.56
12.02
11.61
10.84
10.26
9.34
8.88
13.28
12.72
12.27
11.49
10.87
10.18
15.26
14.70
14.06
13.55
13.10
12.34
270°
275°
280°
285°
290°
295°
2.49
2.01
1.48
0.68
0.04
–0.72
3.09
2.63
1.58
0.91
0.19
–0.80
3.75
2.90
2.43
1.86
0.98
–0.06
3.87
3.63
2.93
2.30
1.33
–0.03
4.69
3.81
3.53
2.98
2.08
1.13
4.73
4.62
4.02
3.40
2.77
1.54
5.84
4.76
4.42
4.16
3.56
2.75
6.63
6.07
5.52
4.83
4.29
3.73
8.09
6.92
6.64
5.91
5.26
4.13
8.92
8.37
7.21
6.58
5.65
4.73
11.00
9.96
9.00
7.50
6.37
5.49
300°
305°
310°
315°
320°
325°
–1.41
–2.17
–2.31
–2.47
–2.63
–2.34
–1.29
–2.04
–2.47
–2.47
–2.49
–2.43
–1.12
–2.02
–2.26
–2.61
–2.62
–2.30
–0.61
–1.75
–2.55
–2.52
–2.50
–2.55
–0.38
–1.43
–2.24
–3.00
–2.95
–2.68
0.68
–0.73
–1.97
–2.78
–3.03
–2.90
1.31
–0.07
–1.66
–2.73
–3.16
–3.24
2.54
1.11
–0.60
–2.30
–3.12
–3.22
3.29
1.87
0.25
–1.60
–2.63
–3.13
3.66
2.08
0.78
–1.24
–2.75
–3.38
4.42
3.13
1.69
–0.24
–2.36
–3.45
330°
335°
340°
345°
350°
355°
–2.03
–1.68
–1.17
–0.75
–0.39
–0.14
–2.36
–1.96
–1.38
–0.81
–0.36
–0.07
–1.92
–1.72
–1.35
–0.86
–0.44
–0.13
–2.39
–1.91
–1.36
–0.87
–0.43
–0.10
–2.48
–2.08
–1.62
–1.02
–0.48
–0.14
–2.57
–2.27
–1.94
–1.24
–0.58
–0.15
–2.79
–2.34
–1.84
–1.17
–0.54
–0.11
–2.80
–2.23
–1.77
–1.11
–0.50
–0.13
–2.75
–2.19
–1.69
–0.92
–0.41
–0.12
–3.18
–2.68
–2.00
–1.05
–0.45
–0.12
–3.31
–2.87
–2.01
–1.06
–0.48
–0.12
BE171211.book Page 100 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
100
Table A.44 Directional response for Microphone Type 4189 only, with Outdoor Microphone Kit UA 1404 fitted,
500 Hz – 3550 Hz.
Frequency
Angle
500 Hz
630 Hz
800 Hz
1000 Hz
1250 Hz
1600 Hz
2000 Hz
2240 Hz
2500 Hz
2800 Hz
3150 Hz
3550 Hz
0°
5°
10°
15°
20°
25°
0.00
0.05
0.05
0.05
0.03
0.02
0.00
0.06
0.06
0.06
0.04
0.03
0.00
0.07
0.08
0.07
0.05
0.03
0.00
0.00
0.00
0.00
–0.02
–0.02
0.00
–0.01
–0.01
–0.02
–0.03
–0.03
0.00
–0.01
–0.02
–0.03
–0.06
–0.08
0.00
–0.01
–0.03
–0.05
–0.09
–0.13
0.00
–0.01
–0.03
–0.05
–0.08
–0.12
0.00
–0.01
–0.03
–0.05
–0.09
–0.14
0.00
–0.01
–0.03
–0.05
–0.08
–0.11
0.00
–0.01
–0.04
–0.08
–0.14
–0.23
0.00
–0.02
–0.07
–0.16
–0.26
–0.37
30°
35°
40°
45°
50°
55°
–0.02
–0.01
–0.02
–0.03
–0.03
–0.03
–0.03
–0.01
–0.03
–0.04
–0.04
–0.04
–0.04
–0.02
–0.04
–0.05
–0.05
–0.05
–0.03
–0.06
–0.09
–0.13
–0.15
–0.17
–0.03
–0.04
–0.04
–0.06
–0.08
–0.12
–0.12
–0.16
–0.20
–0.22
–0.24
–0.24
–0.19
–0.25
–0.31
–0.38
–0.44
–0.51
–0.17
–0.24
–0.31
–0.40
–0.48
–0.57
–0.20
–0.27
–0.34
–0.41
–0.48
–0.57
–0.15
–0.20
–0.27
–0.36
–0.45
–0.53
–0.33
–0.43
–0.50
–0.54
–0.57
–0.63
–0.47
–0.56
–0.67
–0.81
–0.97
–1.08
60°
65°
70°
75°
80°
85°
–0.07
–0.04
–0.05
–0.06
–0.06
–0.07
–0.10
–0.06
–0.06
–0.07
–0.08
–0.09
–0.14
–0.07
–0.08
–0.09
–0.10
–0.11
–0.19
–0.20
–0.22
–0.23
–0.24
–0.24
–0.16
–0.19
–0.22
–0.25
–0.28
–0.29
–0.24
–0.25
–0.26
–0.29
–0.33
–0.38
–0.59
–0.66
–0.69
–0.68
–0.65
–0.62
–0.65
–0.72
–0.80
–0.88
–0.91
–0.87
–0.68
–0.78
–0.86
–0.93
–1.02
–1.10
–0.60
–0.68
–0.79
–0.90
–0.98
–1.06
–0.74
–0.85
–0.91
–0.97
–1.10
–1.23
–1.09
–1.09
–1.18
–1.34
–1.39
–1.45
90°
95°
100°
105°
110°
115°
–0.10
–0.09
–0.10
–0.11
–0.11
–0.13
–0.14
–0.11
–0.12
–0.14
–0.14
–0.16
–0.19
–0.14
–0.15
–0.17
–0.18
–0.20
–0.25
–0.25
–0.26
–0.28
–0.29
–0.31
–0.29
–0.28
–0.27
–0.27
–0.27
–0.29
–0.42
–0.44
–0.43
–0.40
–0.36
–0.33
–0.63
–0.68
–0.75
–0.78
–0.75
–0.67
–0.80
–0.77
–0.83
–0.91
–0.95
–0.89
–1.09
–0.99
–0.91
–0.95
–1.06
–1.10
–1.16
–1.20
–1.09
–0.95
–0.97
–1.12
–1.29
–1.37
–1.48
–1.38
–1.15
–1.16
–1.60
–1.73
–1.75
–1.85
–1.80
–1.48
120°
125°
130°
135°
140°
145°
–0.13
–0.14
–0.14
–0.13
–0.12
–0.10
–0.19
–0.17
–0.17
–0.17
–0.15
–0.13
–0.26
–0.22
–0.22
–0.21
–0.19
–0.17
–0.33
–0.35
–0.35
–0.34
–0.32
–0.29
–0.31
–0.34
–0.35
–0.36
–0.34
–0.30
–0.32
–0.34
–0.38
–0.42
–0.42
–0.39
–0.58
–0.53
–0.54
–0.60
–0.65
–0.65
–0.76
–0.65
–0.60
–0.65
–0.73
–0.77
–1.00
–0.81
–0.67
–0.66
–0.77
–0.86
–1.16
–0.98
–0.70
–0.57
–0.64
–0.81
–1.35
–1.37
–1.05
–0.68
–0.60
–0.80
–1.44
–1.70
–1.64
–1.08
–0.63
–0.71
150°
155°
160°
165°
170°
175°
–0.10
–0.07
–0.05
–0.04
–0.03
–0.02
–0.14
–0.09
–0.07
–0.05
–0.03
–0.03
–0.20
–0.11
–0.08
–0.06
–0.04
–0.03
–0.25
–0.21
–0.16
–0.13
–0.10
–0.09
–0.24
–0.18
–0.11
–0.06
–0.01
0.01
–0.32
–0.22
–0.11
–0.02
0.05
0.09
–0.58
–0.44
–0.28
–0.13
–0.02
0.05
–0.71
–0.56
–0.35
–0.16
–0.01
0.08
–0.85
–0.68
–0.42
–0.17
0.03
0.15
–0.87
–0.71
–0.40
–0.06
0.21
0.37
–1.00
–0.91
–0.54
–0.09
0.27
0.50
–1.06
–1.19
–0.84
–0.26
0.25
0.56
180°
185°
190°
195°
200°
205°
–0.04
–0.02
–0.03
–0.04
–0.05
–0.07
–0.06
–0.03
–0.03
–0.05
–0.07
–0.09
–0.08
–0.03
–0.04
–0.06
–0.08
–0.11
–0.08
–0.09
–0.10
–0.13
–0.16
–0.21
0.03
0.01
–0.01
–0.06
–0.11
–0.18
0.11
0.09
0.05
–0.02
–0.11
–0.22
0.07
0.05
–0.02
–0.13
–0.28
–0.44
0.11
0.08
–0.01
–0.16
–0.35
–0.56
0.19
0.15
0.03
–0.17
–0.42
–0.68
0.42
0.37
0.21
–0.06
–0.40
–0.71
0.57
0.50
0.27
–0.09
–0.54
–0.91
0.67
0.56
0.25
–0.26
–0.84
–1.19
210°
215°
220°
225°
230°
235°
–0.10
–0.10
–0.12
–0.13
–0.14
–0.14
–0.14
–0.13
–0.15
–0.17
–0.17
–0.17
–0.20
–0.17
–0.19
–0.21
–0.22
–0.22
–0.25
–0.29
–0.32
–0.34
–0.35
–0.35
–0.24
–0.30
–0.34
–0.36
–0.35
–0.34
–0.32
–0.39
–0.42
–0.42
–0.38
–0.34
–0.58
–0.65
–0.65
–0.60
–0.54
–0.53
–0.71
–0.77
–0.73
–0.65
–0.60
–0.65
–0.85
–0.86
–0.77
–0.66
–0.67
–0.81
–0.87
–0.81
–0.64
–0.57
–0.70
–0.98
–1.00
–0.80
–0.60
–0.68
–1.05
–1.37
–1.06
–0.71
–0.63
–1.08
–1.64
–1.70
240°
245°
250°
255°
260°
265°
–0.13
–0.13
–0.11
–0.11
–0.10
–0.09
–0.19
–0.16
–0.14
–0.14
–0.12
–0.11
–0.26
–0.20
–0.18
–0.17
–0.15
–0.14
–0.33
–0.31
–0.29
–0.28
–0.26
–0.25
–0.31
–0.29
–0.27
–0.27
–0.27
–0.28
–0.32
–0.33
–0.36
–0.40
–0.43
–0.44
–0.58
–0.67
–0.75
–0.78
–0.75
–0.68
–0.76
–0.89
–0.95
–0.91
–0.83
–0.77
–1.00
–1.10
–1.06
–0.95
–0.91
–0.99
–1.16
–1.12
–0.97
–0.95
–1.09
–1.20
–1.35
–1.16
–1.15
–1.38
–1.48
–1.37
–1.44
–1.48
–1.80
–1.85
–1.75
–1.73
270°
275°
280°
285°
290°
295°
–0.10
–0.07
–0.06
–0.06
–0.05
–0.04
–0.14
–0.09
–0.08
–0.07
–0.06
–0.06
–0.19
–0.11
–0.10
–0.09
–0.08
–0.07
–0.25
–0.24
–0.24
–0.23
–0.22
–0.20
–0.29
–0.29
–0.28
–0.25
–0.22
–0.19
–0.42
–0.38
–0.33
–0.29
–0.26
–0.25
–0.63
–0.62
–0.65
–0.68
–0.69
–0.66
–0.80
–0.87
–0.91
–0.88
–0.80
–0.72
–1.09
–1.10
–1.02
–0.93
–0.86
–0.78
–1.16
–1.06
–0.98
–0.90
–0.79
–0.68
–1.29
–1.23
–1.10
–0.97
–0.91
–0.85
–1.60
–1.45
–1.39
–1.34
–1.18
–1.09
300°
305°
310°
315°
320°
325°
–0.07
–0.03
–0.03
–0.03
–0.02
–0.01
–0.10
–0.04
–0.04
–0.04
–0.03
–0.01
–0.14
–0.05
–0.05
–0.05
–0.04
–0.02
–0.19
–0.17
–0.15
–0.13
–0.09
–0.06
–0.16
–0.12
–0.08
–0.06
–0.04
–0.04
–0.24
–0.24
–0.24
–0.22
–0.20
–0.16
–0.59
–0.51
–0.44
–0.38
–0.31
–0.25
–0.65
–0.57
–0.48
–0.40
–0.31
–0.24
–0.68
–0.57
–0.48
–0.41
–0.34
–0.27
–0.60
–0.53
–0.45
–0.36
–0.27
–0.20
–0.74
–0.63
–0.57
–0.54
–0.50
–0.43
–1.09
–1.08
–0.97
–0.81
–0.67
–0.56
330°
335°
340°
345°
350°
355°
–0.02
0.02
0.03
0.05
0.05
0.05
–0.03
0.03
0.04
0.06
0.06
0.06
–0.04
0.03
0.05
0.07
0.08
0.07
–0.03
–0.02
–0.02
0.00
0.00
0.00
–0.03
–0.03
–0.03
–0.02
–0.01
–0.01
–0.12
–0.08
–0.06
–0.03
–0.02
–0.01
–0.19
–0.13
–0.09
–0.05
–0.03
–0.01
–0.17
–0.12
–0.08
–0.05
–0.03
–0.01
–0.20
–0.14
–0.09
–0.05
–0.03
–0.01
–0.15
–0.11
–0.08
–0.05
–0.03
–0.01
–0.33
–0.23
–0.14
–0.08
–0.04
–0.01
–0.47
–0.37
–0.26
–0.16
–0.07
–0.02
BE171211.book Page 101 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
101
Table A.45 Directional response for Microphone Type 4189 only, with Outdoor Microphone Kit UA 1404 fitted,
4000 Hz – 10600 Hz.
Frequency
Angle
4000 Hz
4500 Hz
5000 Hz
5600 Hz
6300 Hz
7100 Hz
8000 Hz
8500 Hz
9000 Hz
9500 Hz
0°
5°
10°
15°
20°
25°
0.00
–0.02
–0.07
–0.14
–0.23
–0.35
0.00
–0.02
–0.08
–0.17
–0.29
–0.43
0.00
–0.03
–0.11
–0.23
–0.38
–0.54
0.00
–0.04
–0.14
–0.30
–0.51
–0.74
0.00
–0.04
–0.16
–0.34
–0.61
–0.94
0.00
–0.06
–0.23
–0.48
–0.81
–1.16
0.00
–0.07
–0.26
–0.55
–0.95
–1.46
0.00
–0.08
–0.28
–0.59
–1.02
–1.55
0.00
–0.08
–0.28
–0.60
–1.07
–1.70
0.00
–0.08
–0.30
–0.66
–1.22
–1.93
10000 Hz 10600 Hz
0.00
–0.09
–0.34
–0.75
–1.36
–2.09
0.00
–0.11
–0.40
–0.84
–1.46
–2.21
30°
35°
40°
45°
50°
55°
–0.49
–0.70
–0.96
–1.19
–1.33
–1.41
–0.61
–0.83
–1.07
–1.26
–1.46
–1.78
–0.72
–0.97
–1.30
–1.54
–1.77
–2.06
–0.97
–1.29
–1.74
–2.06
–2.24
–2.55
–1.33
–1.75
–2.18
–2.57
–2.85
–3.23
–1.56
–2.06
–2.60
–2.97
–3.35
–3.78
–2.01
–2.51
–3.00
–3.50
–3.80
–4.09
–2.10
–2.61
–3.17
–3.60
–3.91
–4.19
–2.29
–2.81
–3.30
–3.66
–4.02
–4.20
–2.48
–2.96
–3.48
–3.86
–4.08
–4.25
–2.58
–3.10
–3.64
–3.93
–4.13
–4.33
–2.71
–3.22
–3.73
–3.99
–4.22
–4.38
60°
65°
70°
75°
80°
85°
–1.55
–1.73
–1.79
–1.72
–1.80
–1.99
–2.08
–2.17
–2.23
–2.45
–2.51
–2.38
–2.27
–2.52
–2.92
–3.05
–3.02
–3.16
–2.86
–3.09
–3.34
–3.51
–3.82
–3.70
–3.61
–3.66
–3.94
–3.98
–3.99
–3.93
–4.02
–4.15
–4.28
–4.05
–3.95
–3.74
–4.32
–4.32
–4.24
–3.95
–3.73
–3.31
–4.20
–4.25
–3.98
–3.78
–3.45
–3.20
–4.24
–4.03
–3.86
–3.54
–3.33
–3.03
–4.23
–4.00
–3.71
–3.52
–3.20
–3.00
–4.13
–3.99
–3.66
–3.45
–3.20
–2.92
–4.16
–3.96
–3.69
–3.44
–3.15
–2.88
90°
95°
100°
105°
110°
115°
–2.04
–2.09
–2.24
–2.28
–2.30
–2.19
–2.47
–2.58
–2.57
–2.59
–2.60
–2.59
–3.06
–2.85
–2.87
–2.84
–2.69
–2.58
–3.58
–3.45
–3.06
–2.92
–2.79
–2.60
–3.98
–3.52
–3.36
–2.96
–2.76
–2.65
–3.52
–3.47
–3.11
–2.96
–2.67
–2.51
–3.19
–2.95
–2.88
–2.71
–2.56
–2.32
–2.85
–2.78
–2.59
–2.59
–2.29
–2.20
–2.79
–2.54
–2.43
–2.33
–2.20
–2.03
–2.77
–2.47
–2.37
–2.20
–2.16
–1.94
–2.67
–2.46
–2.26
–2.22
–2.11
–1.98
–2.63
–2.43
–2.26
–2.23
–2.15
–2.11
120°
125°
130°
135°
140°
145°
–1.82
–1.75
–1.99
–1.77
–0.97
–0.54
–2.36
–1.84
–1.88
–2.09
–1.49
–0.53
–2.55
–2.20
–1.68
–1.84
–1.90
–0.93
–2.49
–2.41
–1.98
–1.70
–1.95
–1.55
–2.49
–2.41
–2.37
–1.90
–1.93
–2.06
–2.46
–2.30
–2.29
–2.14
–1.87
–2.15
–2.20
–2.19
–2.06
–2.08
–1.82
–2.05
–2.02
–1.98
–1.85
–1.90
–1.75
–1.92
–1.86
–1.79
–1.75
–1.74
–1.72
–1.76
–1.88
–1.79
–1.75
–1.65
–1.70
–1.67
–1.88
–1.80
–1.75
–1.58
–1.68
–1.57
–1.97
–1.94
–1.83
–1.66
–1.66
–1.52
150°
155°
160°
165°
170°
175°
–0.83
–1.27
–1.19
–0.57
0.09
0.53
–0.40
–0.95
–1.20
–0.70
0.07
0.62
–0.13
–0.39
–0.91
–0.70
0.04
0.66
–0.41
–0.21
–0.76
–0.73
0.00
0.68
–1.08
–0.32
–0.72
–0.85
–0.11
0.67
–1.67
–0.54
–0.71
–1.05
–0.25
0.72
–2.12
–0.99
–0.74
–1.34
–0.63
0.55
–2.21
–1.22
–0.73
–1.44
–0.85
0.43
–2.24
–1.51
–0.75
–1.54
–1.10
0.30
–2.27
–1.86
–0.88
–1.66
–1.42
0.05
–2.25
–2.13
–1.03
–1.74
–1.69
–0.14
–2.16
–2.33
–1.22
–1.82
–1.98
–0.33
180°
185°
190°
195°
200°
205°
0.68
0.53
0.09
–0.57
–1.19
–1.27
0.81
0.62
0.07
–0.70
–1.20
–0.95
0.88
0.66
0.04
–0.70
–0.91
–0.39
0.94
0.68
0.00
–0.73
–0.76
–0.21
0.96
0.67
–0.11
–0.85
–0.72
–0.32
1.08
0.72
–0.25
–1.05
–0.71
–0.54
1.00
0.55
–0.63
–1.34
–0.74
–0.99
0.93
0.43
–0.85
–1.44
–0.73
–1.22
0.86
0.30
–1.10
–1.54
–0.75
–1.51
0.67
0.05
–1.42
–1.66
–0.88
–1.86
0.55
–0.14
–1.69
–1.74
–1.03
–2.13
0.44
–0.33
–1.98
–1.82
–1.22
–2.33
210°
215°
220°
225°
230°
235°
–0.83
–0.54
–0.97
–1.77
–1.99
–1.75
–0.40
–0.53
–1.49
–2.09
–1.88
–1.84
–0.13
–0.93
–1.90
–1.84
–1.68
–2.20
–0.41
–1.55
–1.95
–1.70
–1.98
–2.41
–1.08
–2.06
–1.93
–1.90
–2.37
–2.41
–1.67
–2.15
–1.87
–2.14
–2.29
–2.30
–2.12
–2.05
–1.82
–2.08
–2.06
–2.19
–2.21
–1.92
–1.75
–1.90
–1.85
–1.98
–2.24
–1.76
–1.72
–1.74
–1.75
–1.79
–2.27
–1.67
–1.70
–1.65
–1.75
–1.79
–2.25
–1.57
–1.68
–1.58
–1.75
–1.80
–2.16
–1.52
–1.66
–1.66
–1.83
–1.94
240°
245°
250°
255°
260°
265°
–1.82
–2.19
–2.30
–2.28
–2.24
–2.09
–2.36
–2.59
–2.60
–2.59
–2.57
–2.58
–2.55
–2.58
–2.69
–2.84
–2.87
–2.85
–2.49
–2.60
–2.79
–2.92
–3.06
–3.45
–2.49
–2.65
–2.76
–2.96
–3.36
–3.52
–2.46
–2.51
–2.67
–2.96
–3.11
–3.47
–2.20
–2.32
–2.56
–2.71
–2.88
–2.95
–2.02
–2.20
–2.29
–2.59
–2.59
–2.78
–1.86
–2.03
–2.20
–2.33
–2.43
–2.54
–1.88
–1.94
–2.16
–2.20
–2.37
–2.47
–1.88
–1.98
–2.11
–2.22
–2.26
–2.46
–1.97
–2.11
–2.15
–2.23
–2.26
–2.43
270°
275°
280°
285°
290°
295°
–2.04
–1.99
–1.80
–1.72
–1.79
–1.73
–2.47
–2.38
–2.51
–2.45
–2.23
–2.17
–3.06
–3.16
–3.02
–3.05
–2.92
–2.52
–3.58
–3.70
–3.82
–3.51
–3.34
–3.09
–3.98
–3.93
–3.99
–3.98
–3.94
–3.66
–3.52
–3.74
–3.95
–4.05
–4.28
–4.15
–3.19
–3.31
–3.73
–3.95
–4.24
–4.32
–2.85
–3.20
–3.45
–3.78
–3.98
–4.25
–2.79
–3.03
–3.33
–3.54
–3.86
–4.03
–2.77
–3.00
–3.20
–3.52
–3.71
–4.00
–2.67
–2.92
–3.20
–3.45
–3.66
–3.99
–2.63
–2.88
–3.15
–3.44
–3.69
–3.96
300°
305°
310°
315°
320°
325°
–1.55
–1.41
–1.33
–1.19
–0.96
–0.70
–2.08
–1.78
–1.46
–1.26
–1.07
–0.83
–2.27
–2.06
–1.77
–1.54
–1.30
–0.97
–2.86
–2.55
–2.24
–2.06
–1.74
–1.29
–3.61
–3.23
–2.85
–2.57
–2.18
–1.75
–4.02
–3.78
–3.35
–2.97
–2.60
–2.06
–4.32
–4.09
–3.80
–3.50
–3.00
–2.51
–4.20
–4.19
–3.91
–3.60
–3.17
–2.61
–4.24
–4.20
–4.02
–3.66
–3.30
–2.81
–4.23
–4.25
–4.08
–3.86
–3.48
–2.96
–4.13
–4.33
–4.13
–3.93
–3.64
–3.10
–4.16
–4.38
–4.22
–3.99
–3.73
–3.22
330°
335°
340°
345°
350°
355°
–0.49
–0.35
–0.23
–0.14
–0.07
–0.02
–0.61
–0.43
–0.29
–0.17
–0.08
–0.02
–0.72
–0.54
–0.38
–0.23
–0.11
–0.03
–0.97
–0.74
–0.51
–0.30
–0.14
–0.04
–1.33
–0.94
–0.61
–0.34
–0.16
–0.04
–1.56
–1.16
–0.81
–0.48
–0.23
–0.06
–2.01
–1.46
–0.95
–0.55
–0.26
–0.07
–2.10
–1.55
–1.02
–0.59
–0.28
–0.08
–2.29
–1.70
–1.07
–0.60
–0.28
–0.08
–2.48
–1.93
–1.22
–0.66
–0.30
–0.08
–2.58
–2.09
–1.36
–0.75
–0.34
–0.09
–2.71
–2.21
–1.46
–0.84
–0.40
–0.11
BE171211.book Page 102 Thursday, May 27, 2004 1:01 PM
Hand-held Analyzer Type 2250 – Instruction Manual
102
Table A.46 Directional response for Microphone Type 4189 only, with Outdoor Microphone Kit UA 1404 fitted,
11200 Hz – 20000 Hz.
Frequency
Angle
11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz
19000 Hz
20000 Hz
0°
5°
10°
15°
20°
25°
0.00
-0.13
-0.47
-0.96
-1.60
-2.34
0.00
-0.14
-0.50
-1.06
-1.72
-2.42
0.00
-0.14
-0.50
-1.07
-1.80
-2.54
0.00
-0.16
-0.61
-1.24
-1.94
-2.68
0.00
-0.16
-0.63
-1.34
-2.16
-2.88
0.00
-0.18
-0.68
-1.46
-2.36
-3.06
0.00
-0.18
-0.70
-1.49
-2.41
-3.25
0.00
-0.16
-0.65
-1.46
-2.45
-3.30
0.00
-0.16
-0.61
-1.44
-2.61
-3.52
0.00
-0.19
-0.70
-1.58
-2.87
-3.88
0.00
-0.21
-0.78
-1.67
-3.02
-4.30
30°
35°
40°
45°
50°
55°
-2.90
-3.37
-3.87
-4.09
-4.36
-4.54
-3.05
-3.52
-4.01
-4.28
-4.57
-4.67
-3.11
-3.70
-4.17
-4.59
-4.80
-4.85
-3.37
-3.94
-4.51
-4.94
-5.15
-4.97
-3.63
-4.25
-4.83
-5.29
-5.27
-4.86
-3.85
-4.63
-5.18
-5.52
-5.23
-4.50
-4.03
-4.86
-5.37
-5.56
-4.90
-3.98
-4.23
-5.06
-5.51
-5.27
-4.40
-3.39
-4.44
-5.36
-5.53
-5.01
-3.86
-2.96
-4.88
-5.80
-5.71
-4.78
-3.61
-2.91
-5.29
-6.18
-5.72
-4.51
-3.43
-2.87
60°
65°
70°
75°
80°
85°
-4.25
-4.11
-3.71
-3.47
-3.12
-2.80
-4.38
-4.21
-3.72
-3.34
-3.04
-2.67
-4.43
-4.16
-3.55
-3.15
-2.89
-2.60
-4.39
-3.98
-3.36
-2.94
-2.82
-2.68
-4.17
-3.60
-2.99
-2.76
-2.74
-2.76
-3.79
-3.10
-2.63
-2.52
-2.74
-2.85
-3.19
-2.54
-2.29
-2.38
-2.59
-2.88
-2.57
-2.16
-2.06
-2.14
-2.27
-2.59
-2.36
-2.06
-1.99
-2.04
-2.02
-2.19
-2.40
-2.28
-2.14
-1.97
-1.92
-1.86
-2.51
-2.40
-2.24
-2.05
-1.68
-1.39
90°
95°
100°
105°
110°
115°
-2.62
-2.45
-2.38
-2.30
-2.36
-2.30
-2.55
-2.45
-2.43
-2.37
-2.46
-2.49
-2.48
-2.46
-2.53
-2.55
-2.63
-2.76
-2.56
-2.57
-2.69
-2.66
-2.70
-2.81
-2.66
-2.63
-2.73
-2.60
-2.63
-2.58
-2.76
-2.71
-2.68
-2.50
-2.47
-2.20
-2.76
-2.64
-2.57
-2.31
-2.22
-1.87
-2.43
-2.28
-2.20
-1.87
-1.78
-1.31
-2.12
-1.88
-1.82
-1.50
-1.36
-0.94
-1.77
-1.46
-1.40
-1.10
-1.03
-0.80
-1.15
-0.67
-0.65
-0.52
-0.44
-0.40
120°
125°
130°
135°
140°
145°
-2.16
-2.16
-2.08
-1.91
-1.65
-1.54
-2.43
-2.39
-2.29
-2.10
-1.70
-1.62
-2.67
-2.52
-2.53
-2.33
-1.84
-1.65
-2.82
-2.64
-2.64
-2.52
-2.05
-1.64
-2.64
-2.43
-2.45
-2.44
-2.01
-1.45
-2.33
-2.12
-2.00
-2.02
-1.83
-1.14
-1.79
-1.61
-1.46
-1.48
-1.42
-0.72
-1.05
-1.14
-0.75
-0.77
-0.84
-0.26
-0.70
-0.68
-0.39
-0.27
-0.28
0.04
-0.43
-0.44
-0.18
0.06
0.05
0.33
-0.15
-0.06
0.07
0.43
0.51
0.77
150°
155°
160°
165°
170°
175°
-2.00
-2.50
-1.41
-1.87
-2.33
-0.57
-1.80
-2.57
-1.70
-1.84
-2.65
-0.89
-1.59
-2.55
-1.93
-1.80
-2.96
-1.17
-1.38
-2.41
-2.11
-1.69
-3.17
-1.58
-1.11
-2.01
-2.13
-1.44
-3.14
-1.82
-0.80
-1.45
-2.00
-1.13
-2.83
-1.87
-0.33
-0.68
-1.57
-0.75
-2.40
-1.67
0.22
0.21
-1.01
-0.32
-1.85
-1.41
0.63
0.83
-0.52
-0.12
-1.42
-1.18
0.97
1.27
-0.03
0.01
-1.18
-1.06
1.52
1.84
0.65
0.30
-0.88
-0.96
180°
185°
190°
195°
200°
205°
0.28
-0.57
-2.33
-1.87
-1.41
-2.50
0.07
-0.89
-2.65
-1.84
-1.70
-2.57
-0.08
-1.17
-2.96
-1.80
-1.93
-2.55
-0.34
-1.58
-3.17
-1.69
-2.11
-2.41
-0.51
-1.82
-3.14
-1.44
-2.13
-2.01
-0.52
-1.87
-2.83
-1.13
-2.00
-1.45
-0.30
-1.67
-2.40
-0.75
-1.57
-0.68
-0.02
-1.41
-1.85
-0.32
-1.01
0.21
0.16
-1.18
-1.42
-0.12
-0.52
0.83
0.33
-1.06
-1.18
0.01
-0.03
1.27
0.53
-0.96
-0.88
0.30
0.65
1.84
210°
215°
220°
225°
230°
235°
-2.00
-1.54
-1.65
-1.91
-2.08
-2.16
-1.80
-1.62
-1.70
-2.10
-2.29
-2.39
-1.59
-1.65
-1.84
-2.33
-2.53
-2.52
-1.38
-1.64
-2.05
-2.52
-2.64
-2.64
-1.11
-1.45
-2.01
-2.44
-2.45
-2.43
-0.80
-1.14
-1.83
-2.02
-2.00
-2.12
-0.33
-0.72
-1.42
-1.48
-1.46
-1.61
0.22
-0.26
-0.84
-0.77
-0.75
-1.14
0.63
0.04
-0.28
-0.27
-0.39
-0.68
0.97
0.33
0.05
0.06
-0.18
-0.44
1.52
0.77
0.51
0.43
0.07
-0.06
240°
245°
250°
255°
260°
265°
-2.16
-2.30
-2.36
-2.30
-2.38
-2.45
-2.43
-2.49
-2.46
-2.37
-2.43
-2.45
-2.67
-2.76
-2.63
-2.55
-2.53
-2.46
-2.82
-2.81
-2.70
-2.66
-2.69
-2.57
-2.64
-2.58
-2.63
-2.60
-2.73
-2.63
-2.33
-2.20
-2.47
-2.50
-2.68
-2.71
-1.79
-1.87
-2.22
-2.31
-2.57
-2.64
-1.05
-1.31
-1.78
-1.87
-2.20
-2.28
-0.70
-0.94
-1.36
-1.50
-1.82
-1.88
-0.43
-0.80
-1.03
-1.10
-1.40
-1.46
-0.15
-0.40
-0.44
-0.52
-0.65
-0.67
270°
275°
280°
285°
290°
295°
-2.62
-2.80
-3.12
-3.47
-3.71
-4.11
-2.55
-2.67
-3.04
-3.34
-3.72
-4.21
-2.48
-2.60
-2.89
-3.15
-3.55
-4.16
-2.56
-2.68
-2.82
-2.94
-3.36
-3.98
-2.66
-2.76
-2.74
-2.76
-2.99
-3.60
-2.76
-2.85
-2.74
-2.52
-2.63
-3.10
-2.76
-2.88
-2.59
-2.38
-2.29
-2.54
-2.43
-2.59
-2.27
-2.14
-2.06
-2.16
-2.12
-2.19
-2.02
-2.04
-1.99
-2.06
-1.77
-1.86
-1.92
-1.97
-2.14
-2.28
-1.15
-1.39
-1.68
-2.05
-2.24
-2.40
300°
305°
310°
315°
320°
325°
-4.25
-4.54
-4.36
-4.09
-3.87
-3.37
-4.38
-4.67
-4.57
-4.28
-4.01
-3.52
-4.43
-4.85
-4.80
-4.59
-4.17
-3.70
-4.39
-4.97
-5.15
-4.94
-4.51
-3.94
-4.17
-4.86
-5.27
-5.29
-4.83
-4.25
-3.79
-4.50
-5.23
-5.52
-5.18
-4.63
-3.19
-3.98
-4.90
-5.56
-5.37
-4.86
-2.57
-3.39
-4.40
-5.27
-5.51
-5.06
-2.36
-2.96
-3.86
-5.01
-5.53
-5.36
-2.40
-2.91
-3.61
-4.78
-5.71
-5.80
-2.51
-2.87
-3.43
-4.51
-5.72
-6.18
330°
335°
340°
345°
350°
355°
-2.90
-2.34
-1.60
-0.96
-0.47
-0.13
-3.05
-2.42
-1.72
-1.06
-0.50
-0.14
-3.11
-2.54
-1.80
-1.07
-0.50
-0.14
-3.37
-2.68
-1.94
-1.24
-0.61
-0.16
-3.63
-2.88
-2.16
-1.34
-0.63
-0.16
-3.85
-3.06
-2.36
-1.46
-0.68
-0.18
-4.03
-3.25
-2.41
-1.49
-0.70
-0.18
-4.23
-3.30
-2.45
-1.46
-0.65
-0.16
-4.44
-3.52
-2.61
-1.44
-0.61
-0.16
-4.88
-3.88
-2.87
-1.58
-0.70
-0.19
-5.29
-4.30
-3.02
-1.67
-0.78
-0.21
BE171211.book Page 103 Thursday, May 27, 2004 1:01 PM
APPENDIX A
Tables
103
Table A.47 Sensitivity variations of Microphone Type 4189 only and Outdoor Microphone Kit UA 1404 fitted, at
sound incidence angles within ±θ ° from the reference direction.
Nominal
Frequency
Exact
Frequency
Max Variation
± 30°
Max Variation Max Variation
± 90°
± 150°
500 Hz
630 Hz
501.187 Hz
630.957 Hz
0.07
0.09
0.14
0.20
0.19
0.25
800 Hz
1000 Hz
1250 Hz
794.328 Hz
1000 Hz
1258.93 Hz
0.11
0.03
0.03
0.26
0.25
0.29
0.34
0.35
0.36
1600 Hz
2000 Hz
2240 Hz
2500 Hz
1584.89 Hz
1995.26 Hz
2238.72 Hz
2511.89 Hz
0.12
0.19
0.17
0.20
0.42
0.69
0.91
1.10
0.44
0.78
0.95
1.10
2800 Hz
3150 Hz
3550 Hz
4000 Hz
2818.38 Hz
3162.28 Hz
3548.13 Hz
3981.07 Hz
0.15
0.33
0.47
0.49
1.16
1.29
1.60
2.04
1.20
1.48
1.85
2.30
4500 Hz
5000 Hz
5600 Hz
6300 Hz
4466.84 Hz
5011.87 Hz
5623.41 Hz
6309.57 Hz
0.61
0.72
0.97
1.33
2.51
3.16
3.82
3.99
2.60
3.16
3.82
3.99
7100 Hz
8000 Hz
8500 Hz
9000 Hz
7079.46 Hz
7943.28 Hz
8413.95 Hz
8912.51 Hz
1.56
2.01
2.10
2.29
4.28
4.32
4.25
4.24
4.28
4.32
4.25
4.24
9500 Hz
10000 Hz
10600 Hz
11200 Hz
9440.61 Hz
10000 Hz
10592.5 Hz
11220.2 Hz
2.48
2.58
2.71
2.90
4.25
4.33
4.38
4.54
4.25
4.33
4.38
4.54
11800 Hz
12500 Hz
13200 Hz
14000 Hz
11885.0 Hz
12589.3 Hz
13335.2 Hz
14125.4 Hz
3.05
3.11
3.37
3.63
4.67
4.85
5.15
5.29
4.67
4.85
5.15
5.29
15000 Hz
16000 Hz
17000 Hz
18000 Hz
14962.4 Hz
15848.9 Hz
16788.0 Hz
17782.8 Hz
3.85
4.03
4.23
4.44
5.52
5.56
5.51
5.53
5.52
5.56
5.74
6.16
19000 Hz
20000 Hz
18836.5 Hz
19952.6 Hz
4.88
5.29
5.80
6.18
6.77
7.70
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104
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105
Appendix B
Cross-references to Standards
B.1
Introduction
This chapter provides cross-references between specific paragraphs in the standards that require topics
to be documented in the instruction manual, and the corresponding sections in this manual (and User
Manual BE 1713) that conform to these.
A normal index can be found at the end of this manual.
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Hand-held Analyzer Type 2250 – Instruction Manual
106
B.2
Cross-references to Standards
IEC 60651
IEC 60651
Standard
Paragraph
Section
This Manual’s
Section
3.6
4.5
3.7
4.4
11.2 11)
4.12.3
3.8
4.4
11.2 12)
4.12, 4.12.2
3.9
4.4
11.2 13)
3.10
3.6.2
11.2 14)
3.13
3.6.6
4.2
4.16
User Manual
BE 1713-11
Standard
Paragraph
Section
This Manual’s
Section
11.2 10)
5
2
5
4.6.4, 4.6.5,
4.7
11.2 15)
5
2
4.4
2.4, 4.6.1
11.2 16)
4.9
4.16
11.2 17)
B.3 b
4.5, 3.2
11.2 18)
4.14
6.3
4.4
11.2 19)
4.4
6.6
B.3 b
11.2 20)
4.4
4.16
5.1
6.7
B.3 d
11.2 21)
7.2 (Note)
4.10.1
11.2 22)
4.6
7.5
4.10.3
11.2 23)
4.6.6
7.6
4.9.3
11.2 24)
4.7
7.8
2.5
11.2 25)
3.4
8.3
4.12.4, 3.3
11.2 26)
4.9.3
8.4
4.12.5
11.2 27)
B.3 d
8.5
4.12, B.3 j
11.2 28)
3.2, 3.3
4.12.3
11.2 29)
4.12.6
3
11.2 30)
3.6.4
8.6
9.2 (Note)
9.2.1
5
11.2 31)
3.6.6
B.3 m
9.3.1
B.3 d, 3.4,
4.13
11.2 32)
11.2 33)
3.6.2, 3.6.3
9.4.2
4.6.1
11.2 34)
3.6, 3.6.6
9.4.4
4.10.3
11.2 35)
3.6, 3.6.6
11.2 Note i)
4.6
10.2
4.14
11.2 Note ii)
4.10.1
10.3
B.3 b
12.2.3
3.6, 3.6.6
12.3.2
B.3 m
12.4.5
3.6.6
10.1
5
10.4
B.3 n
11.2 1)
4.5, 3.2
2
User Manual
BE 1713-11
11.2 2)
4.5
12.4.8
4.12.6
11.2 3)
4.9.2
12.4.9
3.6, 3.6.6
11.2 4)
4.4
12.5.1.2
3.6.6
11.2 5)
2.4
12.5.2.1
3.6.6
11.2 6)
2.5.3
12.5.2.7
4.2, 3.6
11.2 7)
4.12.4
12.5.3.5
B.3 m
11.2 8)
4.12.5
12.5.4.5
4.2, 3.6, 3.6.6
11.2 9)
4.12, B.3 j
12.5.4.10
4.12.6, 3.6.1
BE171211.book Page 107 Thursday, May 27, 2004 1:01 PM
APPENDIX B
Cross-references to Standards
IEC 60804
Standard
Paragraph
Section
This Manual’s
Section
IEC 60804
User Manual
BE 1713-11
Standard
Paragraph
Section
This Manual’s
Section
3.7
4.4
11.2 18)
B.3 b
3.11
4.5, 4.6.6, 4.2
11.2 19)
4.14
3.12
4.4
11.2 20)
4.16
3.15
4.4
11.2 21)
4.10.2
3.17
3.6.2
11.2 22)
4.15.4
3.20
3.6.6
11.2 23)
4.6.6
4.2
4.16
11.2 24)
4.7
3.4
5
4.10
4.16
11.2 25)
6.2
4.9.5, 4.9.6
11.2 26)
6.5
4.10.2
11.2 27)
4.9.4
9.1 (Note 1)
3
11.2 28)
3.2, 3.3
9.2.3
4.5
11.2 29)
4.12.6
11.2 30)
3.6.4
10.1
5
5
10.2
4.14
11.2 31)
3.6.6
10.3
B.3 b
11.2 32)
B.3 m
7
11.2 33)
3.6.2, 3.6.3
2
11.2 34)
3.6, 3.6.6
10.4
11.2 1)
4.5, 3.2
11.2 2)
4.5, 4.6.6
11.2 35)
3.6, 3.6.6
11.2 3)
4.9.2
12.2.3
3.6, 3.6.6
11.2 4)
4.9.5, 4.9.6
12.3.2
B.3 m
11.2 5)
4.10.2
12.4.5
3.6.6
11.2 6)
4.4
12.4.8
4.12.6
11.2 7)
4.4
12.4.9
3.6, 3.6.6
11.2 8)
4.4
12.5.1
3.6.5, 4.2
11.2 9)
4.12.4
12.5.1.2
3.6.6
11.2 10)
4.12.5
12.5.1.3
3.6.5
11.2 11)
4.12, B.3 j
12.5.2.1
3.6.6
11.2 12)
4.12.3
12.5.2.7
4.2, 3.6
11.2 13)
4.12, 4.12.2
11.2 14)
11.2 15)
5
4.6.4, 4.6.5, 4.7
12.5.3.5
B.3 m
12.5.4.5
4.2, 3.6, 3.6.6
12.5.4.10
4.12.6, 3.6.1
4.9.4
11.2 16)
5
App. B.3
11.2 17)
2
App. C
User Manual
BE 1713-11
5
107
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108
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IEC 61260
IEC 61260
Standard
Paragraph
Section
This Manual’s
Section
3.13
4.11
7 m)
3.5, 4.13
3.18
4.4
7 n)
3.5, 4.13, 4.14
3.19
4.4
7 o)
4.12.2
4.3
4.11
7 p)
4.12.5
4.6.4
4.11.3
7 q)
B.3 i
4.7
4.11.1, 4.11.2
7 r)
B.3 i
4.10
4.6.1
7 s)
User Manual
BE 1713-11
Standard
Paragraph
Section
This Manual’s
Section
2
4.11
3.5, 4.13
7 t)
4.12
3.5, 4.13, 4.14
7 u)
4.16
4.14.2
4.12
7 v)
2.5, 3.5
5.1
3.5, 4.16
7 w)
3.5
5.3.2
3.5, 4.13, 4.14
7 x)
3.6.4
5.5.1
4.6.1
7 y)
3.6.6
5.5.4
B.3 h
7 z)
B.3 m
5.9
4.6.1
7 aa)
3.6.2
7 a)
4.2
7 bb)
3.6, 3.6.6
7 b)
4.11
7 cc)
3.6, 3.6.6
B.3 g
3.6, 3.6.6
7 c)
4.11
8.2.3
7 d)
4.11.1, 4.11.2
8.3.2
B.3 m
7 e)
4.11
8.4.4
3.5, 3.6.2
2
User Manual
BE 1713-11
7 f)
4.4
8.4.5
3.6.6
7 g)
4.4
8.4.8
3.6, 3.6.6
7 h)
4.11
8.5.1.2
3.6.6
7 i)
4.11.3
8.5.2.1
3.6.6
7 j)
4.9
8.5.2.7
4.2, 3.6
7 k)
4.11.1, 4.11.2
8.5.3.5
B.3 m
7 l)
4.6.1
8.5.4.5
4.2, 3.6, 3.6.6
3, 10
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APPENDIX B
Cross-references to Standards
IEC 61672-1
Standard
Paragraph
Section
This Manual’s
Section
5.1.4
5.1.5
IEC 61672-1
User Manual
BE 1713-11
Standard
Paragraph
Section
2
5.17.1 (NOTE 2)
4.17
5.17.2
4.10.2
4.2
This Manual’s
Section
5.1.6
4.5
2 - 8, 10
5.18.1
3.6.4, 1.3
5.1.7
3.2, 4.2
2
5.18.2
3.6.6
4, 11
5.19.2
3.4
5.1.10
2.4
5.20.2
4.15
5.1.12
4.9
5.20.3
4.15.4, 4.15.5
5.1.13
4.4, 4.5, 3.6.2
5.20.4
5.1.14
2.5.3
5.20.5
4.15
5.1.15
3.4
6.1.2
4.12.1
5.1.16
4.9.1, 3.4, 4.13
6.2.2 (NOTE)
2.3
5.1.17
B.3 r
6.3.2
B.3 k
5.1.18
4.16
5.1.8
5.2.1
6.5.2
B.3 m
6.6.1
3.6.6, 3.6.4
5
6.6.3
4.12.6
5.2.3
4.5, 4.2
5.2.4
4.5, 4.6.4, 4.2
6.6.4 (NOTE)
B.3 l
5.2.6
4.6
6.6.9
4.12.6
5.2.7
B.3 q
7.1
4.5
5.2.8
4.6
7.2
4.5, 4.7, 4.6.2
5.3.1
4.7
7.3
4.2
5.4.3
2
7.4
B.3 f
7.5
5.5.3
4.9.7
9.1 b)
10
B.3 o
2
5.5.9
4.9.7
9.2.1 a)
5.5.10
4.9.7
9.2.1 b)
5.5.11
B.3 c
9.2.1 c)
4.5
5.6.1
4.8.1
9.2.1 d)
4.2, 4.5
5.6.2
4.8.1
9.2.1 e)
B.3 r
5.6.3
4.8.1, 3.4
9.2.2 a)
2.5
5.6.4
4.8.1
9.2.2 b)
B.3 e
5.6.5
2.2
9.2.2 c)
2.4, 4.6, B.3 p
5.7.1
2.5.2
9.2.2 d)
2.5.2
5.10.1
2.5
9.2.2 e)
4.9
4.2
2 - 8, 10
5.11.1
2.5
9.2.2 f)
4.9
5.12.1
4.9.8
9.2.2 g)
2.5, 4.10
5.14
B.3 a
9.2.2 h)
4.9.2
5.15.2
2.5
9.2.2 i)
4.9.8
5.15.3
2.5
9.2.2 j)
5.15.4
2.5
9.2.2 k)
2.5
5.15.5
4.10, 2.5
9.2.3 a)
4.15.4, 4.15.5
5.15.6
4.10.2
9.2.3 b)
5.15.7
2, 7
2
2
5
5.4.12
User Manual
BE 1713-11
7, 9
2
9.2.3 c)
2
5.15.8
B.3 s
9.2.3 d)
5.16.1
4.14
9.2.4 a)
5
9.2.4 b)
5
5.17.1
3, 11, Appendix A
4.15
109
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110
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IEC 61672-1
Standard
Paragraph
Section
This Manual’s
Section
9.2.4 c)
9.2.4 d)
4.6.4
9.2.5 a)
4.5
9.2.5 b)
IEC 61672-1
User Manual
BE 1713-11
Standard
Paragraph
Section
This Manual’s
Section
5
9.2.6 d)
B.3 o
9.2.7 a)
B.3 k
2, Appendix A
9.2.7 b)
B.3 m
9.2.7 c)
4.12.6
4.4
9.2.5 c)
4.9
9.3 a)
9.2.5 d)
2.2
9.3 b)
4.4
9.2.5 e)
4.16
9.3 c)
4.5
9.3 d)
B.3 q, 4.6
9.3 e)
4.9.7
4.9.7
9.2.5 f)
4.10.2
9.2.5 g)
4.9
9.2.5 h)
4.10.2
9.3 f)
9.2.5 i)
2.5.3
9.3 g)
3.4
9.2.5 j)
2.5.3, 4.10.2
9.3 h)
4.8.1
9.2.5 k)
2.5
9.3 i)
4.9.1, 3.4, 4.13
9.2.5 l)
B.3 a
9.3 j)
4.15
9.3 k)
B.3 c
9.2.5 m)
3
7
9.2.5 n)
9.3 l)
4.12.1
4.8.1
9.3 m)
B.3 l
9.2.5 p)
4.14
9.3 n)
4.6.6, 4.2
9.2.6 a)
4.5, 4.7, 4.6.2, 4.2
9.3 o)
4.6.6, 3.6.2
9.2.6 b)
4.5
App. C 3
4.9.5
9.2.5 o)
9.2.6 c)
2
10
User Manual
BE 1713-11
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APPENDIX B
Cross-references to Standards
B.3
111
Irrelevant Topics
This section provides a list of the cross-references to topics that are not provided in, or irrelevant for
this product. References are made to the following lines of text:
a
“No user-selectable thresholds are provided.”
b.
“No connections are provided to permit insertion of an external filter or analyzer.”
c.
“The extent of the display device is greater than the linear operating range on any level range.”
d.
“No automatic range control system is provided.”
e.
“Optionally detailed tabular descriptions not included.”
f.
“No optional frequency responses are provided.”
g.
“The filter is an integral part of Type 2250.”
h.
“Neither recommended nor harmful.”
i.
“Only the limitations specified according to Chapter 8 of the standard.”
j.
“No correction information needed.”
k.
“No components of the sound level meter are intended to be operated only in an environmentally
controlled enclosure (the remote PC is not part of the sound level meter).”
l.
“No greater field strengths specified.”
m. “No performance degradation or loss of function specified.”
n.
“No DC output is provided.”
o.
“No manufacturer-provided auxiliary devices provided.”
p.
“No optional FLAT frequency response provided.”
q.
“Not recommended, see IEC 61672-1 paragraph 5.2.7.”
r.
“Only one channel provided.”
s.
“No alternative display device is provided”
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113
Index
Numerics
1/1-Octave-band Centre Frequencies........................... 45
1/3 Octave-band Cente Frequencies ............................ 46
1/3 Octave-band Filters................................................. 16
A
About This Manual .......................................................... 1
Accessories................................................................... 17
Acoustic Frequency Responses.................................... 21
Air temperature ............................................................. 19
Analytical filter design ................................................... 45
Average I-weighted Sound Level .................................. 12
B
B*T Product................................................................... 13
B*T product ................................................................... 47
Base .............................................................................. 45
Battery Lifetime ............................................................. 50
BE 1077 .......................................................................... 1
BZ 5503 PC Software for Hand-held Analyzers.............. 2
BZ 7222 Sound Level Meter Software for Type 2250 ..... 2
BZ 7223 Frequency Analysis Software for Type 2250.... 2
C
cable arrangement ........................................................ 17
Capacitance .................................................................. 20
CCLD Input ................................................................... 49
Components Included with Type 2250............................ 5
Components Not Included with Type 2250 ..................... 5
Conformance Testing.................................................... 15
Current Measurement ................................................... 11
D
Descriptions .................................................................... 7
deviations ...................................................................... 21
Diffuse-field Frequency Responses .............................. 24
Direct Input.................................................................... 49
Directional Response .................................................... 26
E
Elapsed Time ................................................................ 11
Electrical Frequency Responses................................... 20
Electrical Substitute for Microphones............................ 15
EMC Test Procedures ...................................................16
Emission ........................................................................17
Environmental Stabilisation Time ..................................48
Equivalent Continuous I-weighted Sound Level ............12
Equivalent Continuous Sound Level..............................12
Evaluator, Type 7820.......................................................2
Excessive condensation ................................................47
Expanded Uncertainties of Measurement......................20
Exponential Averaging...................................................43
Exponential averaging times..........................................43
exponential time constants ............................................10
Extended Dynamic Range Mode .....................................7
Extension cables............................................................20
External Power to Instrument ........................................50
F
F and S Time-weighted....................................................8
F and S time-weightings ..................................................8
Fast Time Constant .......................................................47
Fast Time-weighting ......................................................47
Free-field Frequency Responses............................22, 55
Frequency Analysis Software for Type 2250, BZ 7223 ...2
Frequency Response.....................................................20
Frequency Responses
Acoustic .....................................................................21
Free-field ...................................................................55
Frequency Weightings .....................................................8
Frequency Weightings According to IEC 61672 – 1 ........9
H
Hand-held Analyzer, Type 2250 ......................................2
Headphones Socket ......................................................49
Humidity.........................................................................48
I
I Time-weighted .............................................................10
I time-weighting..............................................................10
IEC 60651 Standard ........................................................8
IEC 61672 – 1 Standard ..................................................8
IEC 61672-1 (2002-05), Class 1, Group Z.......................1
Immunity as Sound Level Meter ....................................18
Immunity to Power and Radio-frequency Fields ............48
Impulse ..........................................................................10
Indicator Range .............................................................42
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Hand-held Analyzer Type 2250 – Instruction Manual
114
Influence from the Operating Environment ....................47
Input Socket............................................................16, 49
Instantaneous Broadband Measurements.......................8
Instantaneous Time-weighted Sound Level...................10
International Standard for Sound Level Meters ...............1
Introduction ......................................................................1
L
Latched Overload ..........................................................11
Linear Averaging............................................................44
Linear averaging times ..................................................44
Linear Operating Range .................................... 7, 42, 46
Linearity Range..............................................................42
Low Static Pressure.........................................................8
Lower Limit ....................................................................41
Low-level Sounds ............................................................7
M
Magnetic Fields..............................................................48
Maximum Broadband Self-generated Noise..................39
Maximum Sound Level ..................................................41
Maximum Time-weighted Sound Level..........................11
Measured Quantities.................................................8, 13
Measurement Range .....................................................47
Measuring Range ..........................................................41
Microphone ....................................................................20
Microphone Handbook BA 5105......................................8
Microphone reference point ...........................................20
Minimum hold time according to IEC 60804 ..................44
Minimum Time-weighted Sound Level...........................11
Mounting for Acoustical Tests........................................15
Mounting for Mechanical Vibrations Tests.....................15
PC Software for Hand-held Analyzers, BZ 5503 .............2
Peak ..............................................................................44
Peak C Range ...............................................................43
Peak Sound Level .........................................................13
Preset Time ...................................................................11
Primary Indicator Range................................................41
Protector, Type 7825 .......................................................2
Pulse Range ..................................................................42
R
radio frequency emission ..............................................17
random-incidence frequency responses .......................24
Real-time frequency range ............................................45
Rear Input Socket..........................................................16
Reference attenuation ...................................................45
Reference Conditions for Acoustic Calibration ..............20
Reference direction of sound incidence ........................20
Reference Environmental Conditions ............................19
Reference frequency .....................................................20
Reference range............................................................20
Reference sound pressure level....................................20
Relative Attenuation ......................................................16
Relative humidity ...........................................................19
Reset .............................................................................11
RF-emitter/receiver........................................................16
Running Spectrum Measurements ................................13
S
Octave-band Filter Sets .................................................16
Octave-band Time Constants ........................................47
Open Circuit Sensitivity..................................................41
Operating humidity range ..............................................48
Operating temperature range ........................................48
Optional Software Modules..............................................2
Outdoor Microphone Kit UA 1404....................................1
Output Socket ................................................................49
Overload ............................................................ 8, 11, 13
Latched......................................................................11
Overload Limit................................................................41
Overload Percentage.....................................................11
Sampling rate ................................................................45
Securing of Microphone Cables during EMC Test ........17
Self-generated Noise.....................................................39
Setting Up Signal Source for Immunity Test .................16
Settling time according to IEC 60804 ............................44
Signal Source for Immunity Test ...................................16
Slow Time Constant ......................................................47
Socket
Input ..........................................................................16
Software Modules
Optional.......................................................................2
Sound Level Calibrator Type 4231 ..................................8
Sound Level Meter Software for Type 2250, BZ 7222 ....2
Sound Level Meter Standard...........................................1
Sound Pressure Level ...................................................10
Spectrum Analysis.........................................................45
Spectrum Measurements ..............................................13
SPL................................................................................10
Standards ......................................................................19
Start Measurement ........................................................11
Start Time ......................................................................11
Static pressure ..............................................................19
Storage temperature range ...........................................48
Susceptibility .................................................................18
System Overview ............................................................2
P
T
Pause Measurement......................................................11
Temperature ..................................................................48
Test Rig .........................................................................15
N
Noise Explorer, Type 7815 ..............................................2
Nominal delay time ........................................................44
Nominal Open Circuit Sensitivity ...................................20
Nominal preamplifier attenuation ...................................20
Normal Mode of Operation during EMC Test ................17
O
BE171211.book Page 115 Thursday, May 27, 2004 1:01 PM
INDEX
Testing 1/1 Octave-band and 1/3 Octave-band Filters . 16
Testing EMC According to IEC 60804 .......................... 17
Testing Immunity According to IEC 61260.................... 18
Time interval after completion of a measurement ......... 44
Timed Broadband Measurements................................. 11
Timed Measurements ................................................... 13
Timed Spectrum Measurements ................................... 13
Time-weighted Sound Level............................................ 8
Total Range .................................................................. 41
Trigger Socket............................................................... 49
Type 2250 Hand-held Analyzer....................................... 2
Type 7815 Noise Explorer............................................... 2
Type 7820 Evaluator ....................................................... 2
Type 7825 Protector ....................................................... 2
115
Typical Broadband Self-generated Noise ......................39
Typical Self-generated Noise Spectrums ......................39
Typical stabilisation time................................................48
Typical stabilization time................................................48
U
Under-Range ..................................................... 8, 11, 13
Upper Limit ....................................................................41
User Manual BE 1713......................................................1
V
Vibration.........................................................................48
Vibration sensitivity ........................................................48
BE171211.book Page 116 Thursday, May 27, 2004 1:01 PM
116
Hand-held Analyzer Type 2250 – Instruction Manual
BE1713-11_Cover.fm Page 1 Friday, April 16, 2004 10:57 AM
Technical
Documentation
Hand-held Analyzer Type 2250
With 2250 Sound Level Meter Software BZ 7222 and
2250 Frequency Analysis Software BZ 7223
User Manual
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