8808A
Digital Multimeter
Calibration Manual
October 2008
© 2008 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
Table of Contents
Chapter
1
Title
Introduction and Specifications......................................................... 1-1
Introduction........................................................................................................
Safety Information .............................................................................................
Symbols .........................................................................................................
General Safety Summary...............................................................................
Description of IEC 61010 Measurement Categories .........................................
Manual Set .........................................................................................................
About This Manual ............................................................................................
Operating Instructions........................................................................................
Accessories ........................................................................................................
General Specifications .......................................................................................
Voltage ..........................................................................................................
Dimensions ....................................................................................................
Display...........................................................................................................
Environment ..................................................................................................
Safety.............................................................................................................
EMC ..............................................................................................................
Triggering ......................................................................................................
Math Functions..............................................................................................
Electrical........................................................................................................
Remote Interfaces ..........................................................................................
Warranty ........................................................................................................
Electrical Specifications ....................................................................................
DC Voltage Specifications ............................................................................
AC Voltage Specifications ............................................................................
Resistance ......................................................................................................
DC Current ....................................................................................................
AC Current ....................................................................................................
Frequency ......................................................................................................
Continuity ......................................................................................................
Diode Test .....................................................................................................
2
Page
1-3
1-3
1-4
1-4
1-6
1-7
1-7
1-8
1-8
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-10
1-10
1-10
1-10
1-10
1-12
1-12
1-13
1-14
1-14
1-14
General Maintenance .......................................................................... 2-1
Introduction........................................................................................................ 2-3
i
8808A
Calibration Manual
General Maintenance Information .....................................................................
Required Equipment......................................................................................
Static Safe Handling ......................................................................................
Cleaning .............................................................................................................
Storing and Shipping the Meter .........................................................................
Power Considerations ........................................................................................
Selecting the Line Voltage ............................................................................
Replacing the Fuses.......................................................................................
Line-Power Fuse .......................................................................................
Current-Input Fuses...................................................................................
If the Meter Does Not Turn On..........................................................................
Display Tests......................................................................................................
3
Performance Verification and Calibration......................................... 3-1
Introduction........................................................................................................
Required Equipment ..........................................................................................
Direct Voltage Verification................................................................................
Alternating Voltage Verification .......................................................................
4-Wire Ohms Verification .................................................................................
2-Wire Ohms Verification .................................................................................
Direct Current Verification ................................................................................
Alternate Current Verification ...........................................................................
Frequency Verification ......................................................................................
Adjustment (Calibration) ...................................................................................
Equipment for Calibration .............................................................................
Adjustment Process .......................................................................................
Front Panel Adjustments ...............................................................................
RS-232 Calibration (Manual) ........................................................................
RS-232 Calibration (Automatic) ...................................................................
Calibration Points......................................................................................
4
2-3
2-3
2-3
2-4
2-4
2-4
2-4
2-5
2-5
2-6
2-7
2-7
3-3
3-3
3-4
3-5
3-6
3-7
3-8
3-10
3-11
3-11
3-11
3-11
3-11
3-16
3-17
3-17
List of Replaceable Parts.................................................................... 4-1
Introduction........................................................................................................
How to Obtain Parts...........................................................................................
How to Contact Fluke ........................................................................................
Parts Lists...........................................................................................................
ii
4-3
4-3
4-3
4-4
List of Tables
Table
1-1.
1-2.
2-1.
3-1.
3-2.
3-3.
3-4.
3-5.
3-6.
3-7.
3-8.
3-9.
4-1.
4-2.
Title
Safety and Electrical Symbols................................................................................
Accessories.............................................................................................................
Line Voltage to Fuse Rating...................................................................................
Required Test Equipment.......................................................................................
Direct Voltage Verification Steps ..........................................................................
Alternating Voltage Verification Steps ..................................................................
4-Wire Ohms Verification Steps ............................................................................
2-Wire Ohms Verification Steps ............................................................................
Direct Current Verification Steps...........................................................................
Alternating Current Verification Steps ..................................................................
Frequency Verification Steps .................................................................................
Adjustment Steps ...................................................................................................
Front-Panel Assembly ............................................................................................
Chassis Assembly...................................................................................................
iii
Page
1-4
1-8
2-5
3-3
3-4
3-5
3-6
3-7
3-9
3-10
3-11
3-12
4-4
4-6
8808A
Calibration Manual
iv
List of Figures
Figure
1-1.
2-1.
2-2.
2-3.
3-1.
3-2.
3-3.
3-4.
3-5.
4-1.
4-2.
Title
Page
IEC 61010 Measurement Category (CAT) Levels.................................................
Replacing the Line Power Fuse..............................................................................
Replacing the Current-Input Fuses.........................................................................
Display Elements ...................................................................................................
Direct and Alternating Voltage Verification Test Setup ........................................
4-Wire Ohms Test Setup ........................................................................................
2-Wire Ohms Test Setup ........................................................................................
Less than 2 Amps Direct and Alternating Current Test Setup ...............................
2 Amps and Greater Direct and Alternating Current Test Setup............................
Front-Panel Assembly ............................................................................................
Chassis Assembly...................................................................................................
1-6
2-5
2-7
2-8
3-4
3-6
3-7
3-8
3-9
4-5
4-7
v
8808A
Calibration Manual
vi
Chapter 1
Introduction and Specifications
Title
Introduction..........................................................................................................
Safety Information ...............................................................................................
Symbols ...........................................................................................................
General Safety Summary.................................................................................
Description of IEC 61010 Measurement Categories ...........................................
Manual Set ...........................................................................................................
About This Manual ..............................................................................................
Operating Instructions..........................................................................................
Accessories ..........................................................................................................
General Specifications .........................................................................................
Voltage ............................................................................................................
Dimensions ......................................................................................................
Display.............................................................................................................
Environment ....................................................................................................
Safety...............................................................................................................
EMC ................................................................................................................
Triggering ........................................................................................................
Math Functions................................................................................................
Electrical..........................................................................................................
Remote Interfaces ............................................................................................
Warranty ..........................................................................................................
Electrical Specifications ......................................................................................
DC Voltage Specifications ..............................................................................
AC Voltage Specifications ..............................................................................
Resistance ........................................................................................................
DC Current ......................................................................................................
AC Current ......................................................................................................
Frequency ........................................................................................................
Continuity ........................................................................................................
Diode Test .......................................................................................................
Page
1-3
1-3
1-4
1-4
1-6
1-7
1-7
1-8
1-8
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-9
1-10
1-10
1-10
1-10
1-12
1-12
1-13
1-14
1-14
1-14
1-1
8808A
Calibration Manual
1-2
Introduction and Specifications
Introduction
1
Introduction
The Fluke 8808A Digital Multimeter (hereafter referred to as the Meter) is a 5-1/2 digit
dual-display multimeter designed for bench-top, field service, and system applications.
The multiple measurement functions, plus the RS-232 remote interface, make the Meter
an ideal candidate for precision manual measurements and use in automated systems. For
portability, the Meter includes a carrying handle that also serves as a bail for bench-top
operation.
Some features provided by the Meter are:
•
A dual vacuum fluorescent display that allows two properties of an input signal to be
displayed at the same time (e.g., ac voltage in one display and frequency in the other)
•
5-1/2 digit resolution
•
True-rms ac
•
2, 4 wire resistance or patented 2x4 wire resistance measurement technique
•
200 mV to 1000 Vdc range with 1 μV sensitivity
•
200 mV to 750 Vac rms with 1 μV sensitivity
•
200 Ω to 100 MΩ with 1 mΩ sensitivity
•
200 μA to 10 Adc with 1 nA sensitivity
•
20 mA to 10 Aac with 100 nA sensitivity
•
Frequency measurements from 20 Hz to 1 MHz
•
Continuity and diode test
•
Measurement rates of 2.5, 20 and 100 samples/second (slow, medium and fast,
respectively)
•
Front-panel setup key for single key access to saved setups
•
A compare mode to determine if a measurement is within defined limits
•
Remote operation via the RS-232 interface
•
Closed-case calibration (no internal calibration adjustments)
Safety Information
This section addresses safety considerations and describes symbols that may appear on
the Meter or in the manual.
A Warning statement identifies conditions or practices that could result in injury or
death.
A Caution statement identifies conditions or practices that could result in damage to the
Meter or equipment to which it is connected.
XWWarning
To avoid electric shock, personal injury, or death, carefully read
the information in the “Safety Information” section, before
attempting to install, use or service the Meter.
1-3
8808A
Calibration Manual
Symbols
Table 1-1 lists safety and electrical symbols that appear on the Meter or in this manual.
Table 1-1. Safety and Electrical Symbols
Symbol
Description
Symbol
Description
W
Risk of danger. Important
information. See manual.
P
Standby power ON / OFF
X
Hazardous voltage. Voltage > 30 V
dc or ac peak might be present.
J
Earth ground
B
F
AC (Alternating Current)
E
G
Capacitance
I
Fuse
DC (Direct Current)
D
AC or DC (Alternating or Direct
Current)
or
C
Diode
R
Continuity test or continuity beeper
tone
Y
Digital signal
Y
T
Potentially hazardous voltage
U
<
Maintenance or Service
Double insulated
Static awareness. Static discharge
can damage parts.
h
Measurement Category II is for
measurements performed on
circuits directly connected to the
low voltage installation.
CAT II
~
CAT I
Recycle
Do not dispose of this product as
unsorted municipal waste. Go to
Fluke’s website for recycling
information.
Measurement Category I is for
measurements not directly
connected to mains.
General Safety Summary
This instrument has been designed and tested in accordance with the European standard
publication EN61010-1: 2001 and U.S. / Canadian standard publications UL 610101:2004and CAN/CSA-C22.2 No.61010.1:2004. The Meter has been supplied in a safe
condition.
This manual contains information and warnings that must be observed to keep the
instrument in a safe condition and ensure safe operation.
To use the Meter correctly and safely, read and follow the precautions below and follow
all the safety instructions or warnings given throughout this manual that relate to specific
measurement functions. In addition, follow all generally accepted safety practices and
procedures required when working with and around electricity.
XW Warning
To avoid possible electric shock, personal injury, or death, read
the following before using the Meter:
1-4
•
Use the Meter only as specified in this manual, or the
protection provided by the Meter might be impaired.
•
Do not use the Meter in damp or wet environments.
Introduction and Specifications
Safety Information
•
Inspect the Meter before using it. Do not use the Meter if it
appears damaged.
•
Inspect the test leads before use. Do not use them if
insulation is damaged or metal is exposed. Check the test
leads for continuity. Replace damaged test leads before
using the Meter.
•
Verify the Meter's operation by measuring a known voltage
before and after using it. Do not use the Meter if it operates
abnormally. Protection may be impaired. If in doubt, have
the Meter serviced.
•
Whenever it is likely that safety protection has been
impaired, make the Meter inoperative and secure it against
any unintended operation.
•
Have the Meter serviced only by qualified service
personnel.
•
Do not apply more than the rated voltage, as marked on the
Meter, between the terminals or between any terminal and
earth ground.
•
Always use the power cord and connector appropriate for
the voltage and outlet of the country or location in which
you are working.
•
Remove test leads from the Meter before opening the case.
•
Never remove the cover or open the case of the Meter
without first removing it from the main power source.
•
Never operate the Meter with the cover removed or the
case open.
•
Use caution when working with voltages above 30 V ac
rms, 42V ac peak, or 42 V dc. These voltages pose a shock
hazard.
•
Use only the replacement fuses specified by the manual.
•
Use the proper terminals, function and range for your
measurements.
•
Do not operate the Meter around explosive gas, vapor or
dust.
•
When using probes, keep your fingers behind the finger
guards.
•
When making electrical connections, connect the common
test lead before connecting the live test lead. When
disconnecting, disconnect the live test lead before
disconnecting the common test lead.
•
Disconnect circuit power and discharge all high voltage
capacitors before testing resistance, continuity, diodes, or
capacitance.
1
1-5
8808A
Calibration Manual
•
Before measuring current, check the Meter's fuses and turn
OFF power to the circuit before connecting the Meter to the
circuit.
•
When servicing the Meter, use only specified replacement
parts.
Description of IEC 61010 Measurement Categories
The IEC 61010 safety standard defines four Overvoltage (Installation) Categories (CAT I
to CAT IV) based on the magnitude of danger from transient impulses as shown in
Figure 1-1.
CAT I
Electronic
CAT II
Appliances,
PCs, TVs
CAT III
MC Panels, etc.
CAT IV
Service
Entrance
Meter
Service
Entrance
Outbuilding
Meter
Underground Service
Service
Entrance
Transformer
Outbuilding
Meter
Underground Service
Figure 1-1. IEC 61010 Measurement Category (CAT) Levels
cat_levels.eps
The IEC 61010 Measurement CAT level indicates the level of protection the instrument
provides against impulse withstand voltage.
CAT I equipment is designed to protect against transients from high-voltage, low-energy
sources, such as electronic circuits or a copy machine.
CAT II equipment is designed to protect against transients from energy-consuming
equipment supplied from the fixed installation, such as TVs, PCs, portable tools, and
other household appliances.
CAT III equipment is designed to protect against transients in equipment in fixed
equipment installations, such as distribution panels, feeders and short branch circuits, and
lighting systems in large buildings.
CAT IV equipment is designed to protect against transients from the primary supply
level, such as an electricity meter or an overhead or underground utility service.
1-6
Introduction and Specifications
Manual Set
1
Manual Set
The manual set for this Meter consists of a printed Getting Started Manual, and a Users
and Calibration Manual on a CD-ROM. The Getting Started Manual contains basic
getting started information, contacting Fluke, unpacking, and general specifications.
About This Manual
This calibration manual contains information for a technician to maintain the Meter,
verify its performance, and if necessary, calibrate the Meter to specifications. The manual
is divided into the following chapters:
Chapter 1 – Introduction and Specifications
This chapter introduces the Fluke 8808A Digital Multimeter, describing its features, and
accessories. This chapter also discusses use of the Calibration Manual and the various
conventions used in describing the meter’s circuitry and presents a complete set of
specifications.
Chapter 2 – General Maintenance
Chapter 2 provides maintenance information covering handling, cleaning, and fuse
replacement.
Chapter 3 – Performance Verification and Calibration
This chapter provides performance verification procedures related to the specifications
presented in Chapter 1. To maintain these specifications, a full adjustment/calibration
procedure is also presented.
Chapter 4 – Parts
Chapter 4 includes a list user replaceable parts and information on how and where to
order parts.
1-7
8808A
Calibration Manual
Operating Instructions
Full operating instructions are provided in the Fluke 8808A Users Manual. Reference to
these instructions may be necessary during some of the procedures presented in this
Calibration Manual.
Accessories
Table 1-2 lists the available accessories for the 8808A.
Table 1-2. Accessories
Item
1-8
Model / Part Number
Premium Test Lead Set
TL71
Fuse, .25*1.25, 0.063 A, 250 V, Slow
163030
Fuse, .25*1.25, 0.125 A, 250 V, Slow
166488
F1 - Fuse, 11 A, 1000 V, Fast, 406INX1.5IN, BULK
803293
F2 - Fuse, 440 mA, 1000 V, Fast, 406INX1.375IN, BULK
943121
Rack Mount Kit 8845A & 8846A Single
Y8846S
Rack Mount Kit 8845A & 8846A Dual
Y8846D
RS-232 Cable (2 m)
RS43
Precision Electronic Prob Set
TL910
2X4 Wire Ohms 1000 V Test Lead
TL2X4W-PTII
FlukeView Forms Basic Software
FVF-SC5
FlukeView Forms Software Upgrade to enhanced version
FVF-UG
Introduction and Specifications
General Specifications
1
General Specifications
Voltage
100V Setting ...................................................... 90 V to 110 V
120V Setting ..................................................... 108 V to 132 V
220V Setting ..................................................... 198 V to 242 V
240V Setting ..................................................... 216 V to 264 V
Frequency.......................................................... 47 Hz to 440 Hz
Power Consumption ......................................... 15 VA peak (10 W average)
Dimensions
Height................................................................. 88 mm (3.46 in)
Width .................................................................. 217 mm (8.56 in)
Depth ................................................................. 297 mm (11.7 in)
Weight ................................................................ 2.1 kg (4.6 Ib)
Display
Vacuum Fluorescent Display, segment
Environment
Temperature
Operating ........................................................ 0 °C to 50 °C
Storage ........................................................... -40 °C to 70 °C
Warm Up......................................................... ½ hour to full uncertainty specifications
Relative Humidity (non-condensing)
Operating ........................................................ <90 % (0 °C to 28 °C)
<75 % (28 °C to 40 °C)
<45 % (40 °C to 50 °C)
Storage .......................................................... -40 °C to 70 °C <95 %
Altitude
Operating ....................................................... 2,000 Meters
Storage............................................................... 12,000 Meters
Vibration ............................................................ Complies with MIL-PRF-28800F Class 3
Safety
Complies with IEC 61010-1:2001, ANSI/ISA 61010-1 (S82.02.01):2004, UL 61010-1:2004, CAN/CSA C22.2 No.
61010.1:2004, CAT I 1000V/CAT II 600 V
EMC
Designed to comply with IEC 61326-1:1997+A1:1998+A2:2000
Triggering
Trigger Delay .................................................... 400 ms
External Trigger Delay ..................................... <2 ms
External Trigger Jitter ..................................... <1 ms
Trigger Input ..................................................... TTL Levels
Trigger Output ................................................... 5 V max
Math Functions
Min/max, relative, hold, compare and dB functions
Electrical
Input Protection ............................................... 1000 V all ranges
Overrange .......................................................... 10 % on the largest ranges of all functions except continuity and diode
test
1-9
8808A
Calibration Manual
Remote Interfaces
RS-232C
Warranty
One year
Electrical Specifications
Specifications are valid for 5-½ digit mode and after at least a half-hour warm-up.
DC Voltage Specifications
Maximum Input ................................................. 1000 V on any range
Common Mode Rejection................................. 120 dB at 50 or 60 Hz ±0.1% (1 kΩ unbalance)
Normal Mode Rejection .................................... 80 dB at Slow Rate
A/D Nonlinearity ................................................ 15 ppm of range
Input Bias Current ............................................ <30 pA at 25 °C
Settling Considerations ................................... Measurement settling times are affected by source impedance, cable
dielectric characteristics, and input signal changes
Input Characteristics
Resolution
Full-Scale
(5-1/2 Digits)
Slow
Medium
Fast
200 mV
199.999 mV
1 μV
10 μV
10 μV
>10 GΩ
2V
1.99999 V
10 μV
100 μV
100 μV
>10 GΩ
20 V
19.9999 V
100 μV
1000 μV
1000 μV
10 MΩ±1 %
200 V
199.999 V
1 mV
10 mV
10 mV
10 MΩ±1 %
1000 V
1000.00 V
10 mV
100 mV
100 mV
10 MΩ±1 %
Range
Input Impedance
[1]
[1]
Notes:
[1]
At some dual display measurements, the input impedance of 200 mV and 2 V ranges may be changed to 10 MΩ.
Uncertainty
Range
[1]
Temperature Coefficient/°C
Outside 18 – 28 °C
90 days
1 year
23 °C ± 5 °C
23 °C ± 5°C
200 mV
0.01 + 0.003
0.015 + 0.004
2V
0.01 + 0.002
0.015 + 0.003
0.001 + 0.0005
20 V
0.01 + 0.003
0.015 + 0.004
0.0020 + 0.0005
200 V
0.01 + 0.002
0.015 + 0.003
0.0015 + 0.0005
1000 V
0.01 + 0.002
0.015 + 0.003
0.0015 + 0.0005
0.0015 + 0.0005
Notes:
[1]
Uncertainty given as ± (% of reading + % of range)
AC Voltage Specifications
AC Voltage specifications are for ac sinewave signals >5 % of range. For inputs from 1 % to 5 % of range and <50 kHz,
add an additional error of 0.1 % of range, and for 50 kHz to 100 kHz, add 0.13 % of range.
7
Maximum Input ................................................. 750 V rms or 1000 V peak or 8 x 10 Volts-Hertz product
Measurement Method ....................................... AC-coupled true-rms. Measures the ac component of input with up to
1000 V dc bias on any range.
AC Filter Bandwidth ......................................... 20 Hz – 100 kHz
Common Mode Rejection................................. 60 dB at 50 Hz or 60 Hz (1 kΩ unbalance)
Maximum Crest Factor .................................... 3:1 at Full Scale
Additional Crest Factor Errors (<100 Hz) ...... Crest Factor 1-2, 0.05 % of full scale
Crest Factor 2-3, 0.2 % of full scale
Only applies for non-sinusoid signals
1-10
Introduction and Specifications
Electrical Specifications
1
Input Characteristics
Range
Full-Scale
(5-1/2 Digits)
Resolution
Input Impedance
Slow
Medium
Fast
199.999 mV
1 μV
10 μV
10 μV
2V
1.99999 V
10 μV
100 μV
100 μV
20 V
19.9999 V
100 μV
1000 μV
1000 μV
200 V
199.999 V
1 mV
10 mV
10 mV
750 V
750.00 V
10 mV
100 mV
100 mV
200 mV
Uncertainty
Range
200 mV
2V
20 V
200 V
750 V
Frequency
20 Hz – 45Hz
45 Hz – 20 kHz
20 kHz – 50 kHz
50 kHz – 100 kHz
20 Hz – 45Hz
45 Hz – 20 kHz
20 kHz – 50 kHz
50 kHz – 100 kHz
20 Hz – 45 Hz
45 Hz – 20 kHz
20 kHz – 50 kHz
50 kHz – 100 kHz
20 Hz – 45Hz
45 Hz – 20 kHz
20 kHz – 50 kHz
50 kHz – 100 kHz
20 Hz – 45Hz
45 Hz – 20 kHz
20 kHz – 50 kHz
50 kHz – 100 kHz
[1]
1 MΩ ±2 % shunted by
<100 pf
90 days
1 year
23 °C ± 5 °C
23 °C ± 5 °C
Temperature
Coefficient/°C
Outside 18 – 28 °C
0.8 + 0.05
0.15 + 0.05
0.3 + 0.05
0.8 + 0.05
0.8 + 0.05
0.15 + 0.05
0.3 + 0.05
0.8 + 0.05
0.8 + 0.05
0.15 + 0.05
0.3 + 0.05
0.8 + 0.05
0.8 + 0.05
0.15 + 0.05
0.3 + 0.05
0.8 + 0.05
0.8 + 0.05
0.15 + 0.05
0.3 + 0.05
0.8 + 0.05
0.9 + 0.05
0.2 + 0.05
0.35 + 0.05
0.9 + 0.05
0.9 + 0.05
0.2 + 0.05
0.35 + 0.05
0.9 + 0.05
0.9 + 0.05
0.2 + 0.05
0.35 + 0.05
0.9 + 0.05
0.9 + 0.05
0.2 + 0.05
0.35 + 0.05
0.9 + 0.05
0.9 + 0.05
0.2 + 0.05
0.35 + 0.05
0.9 + 0.05
0.01 + 0.005
0.01 + 0.005
0.01 + 0.005
0.05 + 0.01
0.01 + 0.005
0.01 + 0.005
0.01 + 0.005
0.05 + 0.01
0.01 + 0.005
0.01 + 0.005
0.01 + 0.005
0.05 + 0.01
0.01 + 0.005
0.01 + 0.005
0.01 + 0.005
0.05 + 0.01
0.01 + 0.005
0.01 + 0.005
0.01 + 0.005
0.05 + 0.01
Notes:
[1]
Uncertainty given as ± (% of reading + % of range)
1-11
8808A
Calibration Manual
Resistance
Specifications are for 4-wire resistance function, or 2-wire resistance with REL. If REL is not used, add 0.2 Ω for 2-wire
resistance plus lead resistance.
Measurement Method ....................................... Current source referenced to LO input
Max Lead Resistance (4-wire ohms) ............... 10 % of range per lead for 200 Ω, 2 kΩ ranges. 1 kΩ per lead on all
other ranges.
Input Protection ................................................ 1000 V on all ranges
Input Characteristics
Range
Full-Scale
(5-1/2 Digits)
Resolution
Current Source
Slow
Medium
Fast
200 Ω
199.999 Ω
0.001 Ω
0.01 Ω
0.01 Ω
2 kΩ
1.99999 kΩ
0.01 Ω
0.1 Ω
0.1 Ω
0.8 mA
20 kΩ
19.9999 kΩ
0.1 Ω
1Ω
1Ω
0.08 mA
200 kΩ
199.999 kΩ
1Ω
10 Ω
10 Ω
0.008 mA
2 MΩ
1.99999 MΩ
10 Ω
100 Ω
100 Ω
0.9 μA
20 MΩ
19.9999 MΩ
100 Ω
1 kΩ
1 kΩ
0.16 μA
100 MΩ
100.000 MΩ
1 kΩ
10 kΩ
10 kΩ
0.16 μA || 10 MΩ
Uncertainty
Range
0.8 mA
[1]
Temperature Coefficient/°C
Outside 18 – 28 °C
90 days
1 year
23 °C ± 5 °C
23 °C ± 5 °C
200 Ω
0.02 + 0.004
0.03 + 0.004
0.003 + 0.0006
2 kΩ
0.015 + 0.002
0.02 + 0.003
0.003 + 0.0005
20 kΩ
0.015 + 0.002
0.02 + 0.003
0.003 + 0.0005
200 kΩ
0.015 + 0.002
0.02 + 0.003
0.003 + 0.0005
2 MΩ
0.03 + 0.003
0.04 + 0.004
0.004 + 0.0005
20 MΩ
0.2 + 0.003
0.25 + 0.003
0.01 + 0.0005
100 MΩ
1.5 + 0.004
1.75 + 0.004
0.2 + 0.0005
Notes:
[1]
Uncertainty given as ± (% of reading + % of range)
DC Current
Input Protection ............................................... Tool accessible 11 A / 1000 V and 440 mA / 1000 V fuses.
Shunt Resistance.............................................. 0.01 Ω for 2 A and 10 A ranges
1 Ω for 20 mA and 200 mA
Burden voltage < 5 mV for 200 μA and 2 mA range.
Input Characteristics
Range
1-12
Full-Scale
(5-1/2 Digits)
Resolution
Burden Voltage
Slow
Medium
Fast
200 μA
199.999 μA
0.001 μA
0.01 μA
0.01 μA
2 mA
1999.99 μA
0.01 μA
0.1 μA
0.1 μA
<5 mV
20 mA
19.9999 mA
0.1 μA
1 μA
1 μA
<0.05 V
200 mA
199.999 mA
1 μA
10 μA
10 μA
<0.5 V
2A
1.99999 A
10 μA
100 μA
100 μA
<0.1 V
10 A
10.0000 A
100 μA
1 mA
1 mA
<0.5 V
<5 mV
Introduction and Specifications
Electrical Specifications
Uncertainty
Range
[1]
90 days
200 μA
2 mA
20 mA
200 mA
2A
10 A
1
Temperature Coefficient/°C
Outside 18 – 28 °C
1 year
23 °C ± 5 °C
23 °C ± 5 °C
0.02 + 0.005
0.03 + 0.005
0.003 + 0.001
0.015 + 0.005
0.03 + 0.02
0.02 + 0.005
0.05 + 0.02
0.18 + 0.01
0.02 + 0.005
0.04 + 0.02
0.03 + 0.008
0.08 + 0.02
0.2 + 0.01
0.002 + 0.001
0.005 + 0.001
0.005 + 0.001
0.008 + 0.001
0.008 + 0.001
Notes:
[1]
Uncertainty given as ± (% of reading + % of range)
AC Current
The following ac current specifications are for sinusoidal signals with amplitudes greater than 5 % of range. For inputs
from 1 % to 5 % of range, add an additional error of 0.1 % of range.
Input Protection ................................................ Tool accessible 11 A / 1000 V and 440 mA / 1000 V fuses
Measurement Method ....................................... AC-coupled True RMS
Shunt Resistance.............................................. 0.01 Ω for 2 A and 10 A ranges
1 Ω for 20 mA and 200 mA
AC Filter Bandwidth ......................................... 20 Hz – 100 kHz
Maximum Crest Factor ..................................... 3:1 at Full Scale
Additional Crest Factor Errors (<100 Hz) ...... Crest Factor 1-2, 0.05 % of full scale
Crest Factor 2-3, 0.2 % of full scale
Only applies to non-sinusoid signals
Input Characteristics
Resolution
Burden Voltage
Full-Scale
(5-1/2 Digits)
Slow
Medium
Fast
20 mA
19.9999 mA
0.1 μA
1 μA
1 μA
<0.05 V
200 mA
Range
199.999 mA
1 μA
10 μA
10 μA
<0.5 V
2A
1.99999 A
10 μA
100 μA
100 μA
<0.1 V
10 A
10.0000 A
100 μA
1 mA
1 mA
<0.5 V
Uncertainty
Range
20 mA
200 mA
2A
10 A
Frequency
20 Hz - 45Hz
45 Hz - 2 kHz
20 Hz - 45Hz
45 Hz - 2 kHz
20 Hz - 45Hz
45 Hz - 2 kHz
20 Hz - 45Hz
45 Hz - 2 kHz
[1]
90 days
1 year
23 °C ± 5 °C
23 °C ± 5 °C
Temperature
Coefficient/°C
Outside 18 – 28 °C
1 + 0.05
0.25 + 0.05
0.8 + 0.05
0.25 + 0.05
1 + 0.05
0.25 + 0.05
1 + 0.1
0.35 + 0.1
1.25 + 0.06
0.3 + 0.06
1 + 0. 06
0.3 + 0.06
1.25 + 0.06
0.3 + 0.06
1.25 + 0.12
0.5 + 0.12
0.015 + 0.005
0.015 + 0.005
0.015 + 0.005
0.015 + 0.005
0.015 + 0.005
0.015 + 0.005
0.015 + 0.005
0.015 + 0.005
Notes:
[1]
Uncertainty given as ± (% of reading + % of range)
1-13
8808A
Calibration Manual
Frequency
Gate Time .......................................................... 131 ms
Measurement Method ....................................... AC-coupled input using the ac voltage measurement function.
Settling Considerations ................................... When measuring frequency after a dc offset voltage change, errors
may occur. For the most accurate measurement, wait up to 1 second
to allow input blocking RC time constant to settle.
Measurement Considerations ......................... To minimize measurement errors, shield inputs from external noise
when measuring low voltage, low frequency signals.
Uncertainty
Range
Frequency
90 days
23 °C ± 5 °C
23 °C ± 5 °C
Temperature
Coefficient/°C
Outside 18 – 28 °C
100 mV to
[1,2]
750 V
20 Hz – 2 kHz
2 kHz – 20 kHz
20 kHz – 200 kHz
200 kHz – 1 MHz
0.01 + 0.002
0.01 + 0.002
0.01 + 0.002
0.01 + 0.004
0.01 + 0.003
0.01 + 0.003
0.01 + 0.003
0.01 + 0.006
0.002 + 0.001
0.002 + 0.001
0.002 + 0.001
0.002 + 0.002
1 year
Notes:
[1] Input > 100 mV
[2] Limited to 8* 107 V Hz
Continuity
Continuity Threshold........................................ 20 Ω
Test Currents .................................................... 1 mA
Response Time ................................................ 100 samples/sec with audible tone
Rate .................................................................... Fast
Maximum Reading ............................................ 199.99 Ω
Resolution ......................................................... 0.01 Ω
Diode Test
Response Time ................................................. 100 samples/sec with audible tone
Rate .................................................................... Fast
Maximum Reading ............................................ 1.9999 V
Resolution ......................................................... 0.1 mV
1-14
Chapter 2
General Maintenance
Title
Introduction..........................................................................................................
General Maintenance Information .......................................................................
Required Equipment........................................................................................
Static Safe Handling ........................................................................................
Cleaning ...............................................................................................................
Storing and Shipping the Meter ...........................................................................
Power Considerations ..........................................................................................
Selecting the Line Voltage ..............................................................................
Replacing the Fuses.........................................................................................
Line-Power Fuse .........................................................................................
Current-Input Fuses.....................................................................................
If the Meter Does Not Turn On............................................................................
Display Tests........................................................................................................
Page
2-3
2-3
2-3
2-3
2-4
2-4
2-4
2-4
2-5
2-5
2-6
2-7
2-7
2-1
8808A
Calibration Manual
2-2
General Maintenance
Introduction
2
Introduction
This chapter provides handling, cleaning, fuse replacement, and display test instructions
for the Meter.
General Maintenance Information
The following sections describe how to maintain the Meter.
Required Equipment
Equipment required for calibration, troubleshooting, and repair of the Meter is listed in
Table 3-1.
Static Safe Handling
All integrated circuits, including surface mounted ICs, are susceptible to damage from
electrostatic discharge (ESD). Modern integrated circuit assemblies are more susceptible
to damage from ESD than ever before.
Integrated circuits today can be built with circuit lines less than one micron thick,
allowing more than a million transistors on a 1/4-inch square chip. These submicron
structures are sensitive to static voltages under 100 volts. This much voltage can be
generated on a dry day by simply moving your arm. A person can develop a charge of
2,000 volts by walking across a vinyl tile floor, and polyester clothing can easily generate
5,000 to 15,000 volts during movement against the wearer. These low voltage static
problems are often undetected, because a static charge must be in the 30,000 to 40,000
volt range before a person will feel a shock.
Most electronic components manufactured today can be degraded or destroyed by ESD.
While protection networks are used in CMOS devices, they can only reduce, not
eliminate, component susceptibility to ESD.
ESD may not cause an immediate failure in a component; a delayed failure or
"wounding" effect is caused when the semiconductor’s insulation layers or junctions are
punctured. The static problem is thus complicated in that failure may occur anywhere
from two hours to six months after the initial damage.
Two failure modes are associated with ESD. First, a person who has acquired a static
charge can touch a component or assembly and cause a transient discharge to pass
through the device. The resulting current ruptures the junctions of a semiconductor. The
second failure mode does not require contact with another object. Simply exposing a
device to the electric field surrounding a charged object can destroy or degrade a
component. MOS devices can fail when exposed to static fields as low as 30 volts.
Observe the following rules for handling static-sensitive devices:
1. Handle all static-sensitive components in a static-safe work area.
Use grounded static-control table mats on all repair benches, and always wear a
grounded wrist strap. Handle boards by their nonconductive edges only. Store plastic,
vinyl, and Styrofoam objects outside the work area.
2. Store and transport all static-sensitive components and assemblies in static shielding
bags or containers.
Static-shielding bags and containers protect components and assemblies from direct static
discharge and external static fields. Store components in their original packages until they
are ready for use.
2-3
8808A
Calibration Manual
Cleaning
XW Warning
To avoid electric shock or damage to the Meter, never get water
inside the Meter.
W Caution
To avoid damaging the Meter’s housing, do not apply solvents
to the Meter.
If the Meter requires cleaning, wipe it down with a cloth lightly dampened with water or
a mild detergent. Do not use aromatic hydrocarbons, chlorinated solvents, or methanolbased fluids to wipe down the Meter.
Storing and Shipping the Meter
To prepare the Meter for storage or shipping, place it inside a sealed bag, fit the bag into
the packing material inside the original shipping container, and then secure the package.
Use the original shipping container if possible, as it provides shock isolation for normal
handling operations. If the original shipping container is not available, use a box that is
17.5 x 15.5 x 8.0 inches, with cushioning material that fills the space between the Meter
and the sides of the box.
To store the Meter, place the box under cover in a location that complies with the storage
environment specifications described in the “General Specifications” section in
Chapter 1.
Power Considerations
XW Warning
To avoid electric shock, connect the Meter’s power cord to a
power receptacle with earth ground.
The Meter operates on varying power distribution standards found throughout the world
and must be set up to operate on the line voltage that will power it. The Meter is packed
ready for use with a line voltage determined at the time of ordering. If the selected line
voltage does not match the power that the Meter will be plugged into, the line-voltage
setting of the Meter must be changed and replacement of the line fuse may be required.
Selecting the Line Voltage
The Meter operates on four different input line voltages. The selected line-voltage setting
is visible through the window in the line-fuse holder on the rear panel of the Meter.
1. Unplug the power cord.
2. Insert a small screwdriver blade into the narrow recess to the left of the fuse
holder and pry it to the right until the holder pops out. See Figure 2-1.
3. Remove the voltage-selector block from the fuse holder.
4. Rotate the selector block until the desired voltage rating faces outward.
5. Replace the selector block back into the fuse holder.
6. Install the fuse holder back into the Meter and reconnect the power cord.
Changing the line-voltage setting may require a different line-power fuse for proper
operation.
2-4
General Maintenance
Power Considerations
2
Replacing the Fuses
The Meter uses one fuse to protect the line-power input and two fuses to protect the
current-measurement inputs.
Line-Power Fuse
The Meter has a line-power fuse in series with the power supply. Table 2-1 indicates the
proper fuse for each of the four line-voltage selections. The line-power fuse is accessed
through the rear panel.
1. Unplug the power cord.
2. Insert a small screwdriver blade into the narrow recess to the left of the fuse
holder and pry it to the right until the holder pops out. See Figure 2-1.
3. Remove the fuse and replace it with a fuse of an appropriate rating for the
selected line-power voltage. See Table 2-1.
4. Replace the selector block back into the fuse holder.
XW Warning
To avoid electric shock or fire, do not use makeshift fuses or
short-circuit the fuse holder.
Table 2-1. Line Voltage to Fuse Rating
Line Voltage Selection
Fuse Rating
100 / 120
0.125 A, 250 V (slow blow)
220 / 240
0.063 A, 250 V (slow blow)
120
Figure 2-1. Replacing the Line Power Fuse
eue20.eps
2-5
8808A
Calibration Manual
Current-Input Fuses
The 200 mA and 10 A inputs are protected by user-replaceable fuses.
•
The 200 mA input is protected by a fuse (F2) rated at 440 mA, 1000 V (fast
blow), 10,000 A minimum breaking capacity.
•
The 10 A input is protected by a fuse (F1) rated at 11 A, 1000 V (fast blow),
10,000 A minimum breaking capacity.
XW Warning
For protection against fire or arc flash, replace a blown fuse
with a fuse of an identical rating.
To test the current-input fuses:
1. Turn on the Meter and plug a test lead into the INPUT VZYR HI terminal.
2. Press O.
3. Press Vto set the range to 200 Ω. Only the 200 Ω, 2 kΩ, and 20 kΩ ranges can
be used to test the mA input fuse.
4. Insert the other end of the test lead into the mA terminal. If the fuse is good, the
Meter displays a reading of 0.000 Ω. If the fuse is blown, the Meter displays 0L
to indicate an overload.
5. Remove the test lead from the mA terminal and insert it into the 10 A terminal.
If the fuse is good, the Meter displays a reading of <1.000 Ω. If the fuse is blown,
the Meter displays 0L to indicate an overload.
XW Warning
To avoid electric shock, remove the power cord and any test
leads from the Meter before opening the current-input fuse
cover.
To replace the current-input fuses:
1. Remove power from the Meter by unplugging its power cord.
2. Turn the Meter upside down.
3. Remove the retaining screw on the fuse access door located on the bottom of the
Meter. See Figure 2-2.
4. Remove the protective cover from the fuse holders by slightly depressing the
back edge of the cover to unlatch it from the printed circuit board. Pull up on the
back edge of the cover and remove it from the fuse compartment.
5. Remove the defective fuse and replace it with a fuse of an appropriate rating. See
Table 2-1.
6. Replace the protective cover by pushing it over the fuses while aligning the
catches with the holes in the printed circuit board. Press the cover down until the
catches engage the printed circuit board.
7. Replace the fuse access door and install the retaining screw.
2-6
General Maintenance
If the Meter Does Not Turn On
Fuses
2
F2
F1
Bottom front
left corner
Figure 2-2. Replacing the Current-Input Fuses
eue04.eps
If the Meter Does Not Turn On
Use the following steps to help solve problems encountered when turning on the Meter.
1. Verify the power switch is in the “On” position.
2. Make sure that the power cord is firmly plugged into the power module on the rear of
the Meter.
3. Make sure the power source the Meter is plugged into is energized.
4. Ensure the power line voltage of the Meter is set to the proper value for your country.
See the “Fuse Replacement” section earlier in this chapter for instructions on
changing the voltage setting.
5. Verify that the power-line fuse is good.
If these steps don’t solve the problem, then contact Fluke for more help. See the
“Contacting Fluke” section in Chapter 4 for contact information.
Display Tests
The display test consists of turning on all the display elements and checking what appears
in the display with Figure 2-3. To turn on all the display elements:
1. Turn the Meter on by moving the rear-panel power switch to the “On” position.
2. Put the Meter into standby by pressing the front-panel power button until the display
extinguishes.
3. While holding Q, push in on the front-panel power button until the display
illuminates.
4. Check the elements of the display against those elements appearing in Figure 2-3.
2-7
8808A
Calibration Manual
Figure 2-3. Display Elements
5. Push the front-panel power button twice to clear the display test.
2-8
ffw008.eps
Chapter 3
Performance Verification and Calibration
Title
Introduction..........................................................................................................
Required Equipment ............................................................................................
Direct Voltage Verification..................................................................................
Alternating Voltage Verification .........................................................................
4-Wire Ohms Verification ...................................................................................
2-Wire Ohms Verification ...................................................................................
Direct Current Verification ..................................................................................
Alternate Current Verification .............................................................................
Frequency Verification ........................................................................................
Adjustment (Calibration) .....................................................................................
Equipment for Calibration ...............................................................................
Adjustment Process .........................................................................................
Front Panel Adjustments .................................................................................
RS-232 Calibration (Manual) ..........................................................................
RS-232 Calibration (Automatic) .....................................................................
Calibration Points........................................................................................
Page
3-3
3-3
3-4
3-5
3-6
3-7
3-8
3-10
3-11
3-11
3-11
3-11
3-11
3-16
3-17
3-17
3-1
8808A
Calibration Manual
3-2
Performance Verification and Calibration
Introduction
3
Introduction
This chapter of the Calibration Manual provides performance tests to verify the Meter is
operating within published specifications as well as a complete calibration procedure.
The performance test and, if necessary, the calibration procedure can be performed both
periodically and after service or repair. A one-year calibration interval is recommended to
maintain the accuracy of the Meter.
The performance tests can be used as an acceptance test upon receipt of the Meter. Use
the 90-day specifications when performing an acceptance test after performing a
calibration.
Required Equipment
Table 3-1 lists the equipment required for performance testing and calibration of the
Meter.
Table 3-1. Required Test Equipment
Function
Volts dc
Instrument Type
Model
Comments
Calibrator
Fluke 5700A
Figure 3-1
4-wire short
Fluke low thermal 4-wire
short or equivalent
Fluke PN 2653346
Calibrator
Fluke 5700A
Amplifier
Fluke 5725A
Resistance
Calibrator
Fluke 5700A
Figures 3-2 & 3-3
Amps dc
Calibrator
Fluke 5700A
Figure 3-4
Amplifier
Fluke 5725A
Figure 3-5
4-wire short
Fluke low thermal 4-wire
short or equivalent
Fluke PN 2653346
Calibrator
Fluke 5700A
Figure 3-4
Amplifier
Fluke 5725A
Figure 3-5
Frequency
Function Generator
Fluke 271 or equivalent
Requires frequency specification
better than 0.0025 %
Resistance
Adjust
Calibrator
Fluke 5520A
Requires resistance accuracy better
than 0.0045 %
Volts ac
Amps ac
Figure 3-1
3-3
8808A
Calibration Manual
Direct Voltage Verification
To verify the Volts dc function of the Meter, connect it to the calibrator as shown in
Figure 3-1 and apply the voltages listed in Table 3-2,
Connect 57X0A and 5725A Callibrator to the UUT as follows:
8808A
INPUT
57X0A
SENSE
4W
V
2W/4W
HI
1000V MAX
750V
HI
1000 V
600 V
CAT I
CAT II
300V
1V
LO
LO
500 Vpk
200 mA
MAX
OUTPUT
V ΩA
10 A
MAX
mA
10A
HI
HI
LO
LO
SENSE
VA
WIDEBAND
HI
NC
AUX
GUARD
CURRENT
UUT
GROUND
57X0A
Input
HI
Output
HI
Input
LO
Output
LO
ffw001.eps
Figure 3-1. Direct and Alternating Voltage Verification Test Setup
Table 3-2. Direct Voltage Verification Steps
Nominal
Input
3-4
Range
90-Day Test Limit
High
Low
1-Year Test Limit
High
Low
0V
200 mV
0.006 mV
-0.006 mV
0.008 mV
-0.008 mV
190 mV
200 mV
190.025 mV
189.975 mV
190.037 mV
189.964 mV
-190 mV
200 mV
-189.975 mV
-190.025 mV
-189.964 mV
-190.037 mV
0V
2V
0.00004 V
-0.00004 V
0.00006 V
-0.00006 V
0.5 V
2V
0.50009 V
0.49991 V
0.50014 V
0.49986 V
-0.5 V
2V
-0.49991 V
-0.50009 V
-0.49986 V
-0.50014 V
1.9 V
2V
1.90023 V
1.89977 V
1.90034 V
1.89966 V
-1.9 V
2V
-1.89977 V
-1.90023 V
-1.89966 V
-1.90034 V
0V
20 V
0.0006 V
-0.0006 V
0.0008 V
-0.0008 V
19 V
20 V
19.0025 V
18.9975 V
19.0037 V
18.9963 V
-19 V
20 V
-18.9975 V
-19.0025 V
-18.9963 V
19.0037 V
0V
200 V
0.004 V
-0.004 V
0.006 V
-0.006 V
190 V
200 V
190.023 V
189.977 V
190.034 V
189.966 V
-190 V
200 V
-189.977 V
-190.023 V
-189.966 V
-190.034 V
0V
1000 V
0.02 V
-0.02 V
0.03 V
-0.03 V
1000 V
1000 V
1000.12 V
999.88 V
1000.18 V
999.82 V
-1000 V
1000 V
-999.88 V
-1000.12 V
-999.82 V
-1000.18 V
Performance Verification and Calibration
Alternating Voltage Verification
3
Alternating Voltage Verification
To verify the Volts ac function of the Meter, connect it to the test equipment as shown in
Figure 3-1 and apply the voltage listed in Table 3-3.
Table 3-3. Alternating Voltage Verification Steps
Nominal Input
Ampl.
Freq.
Range
90-Day Test Limit
High
Low
1-Year Test Limit
High
Low
10 mV
50 Hz
200 mV
10.120 mV
9.890 mV
10.120 mV
9.880 mV
190 mV
20 Hz
200 mV
191.620 mV
188.380 mV
191.810 mV
188.190 mV
190 mV
45 Hz
200 mV
190.385 mV
189.615 mV
190.480 mV
189.520 mV
190 mV
20 kHz
200 mV
190.385 mV
189.615 mV
190.480 mV
189.520 mV
190 mV
50 kHz
200 mV
190.670 mV
189.330 mV
190.765 mV
189.235 mV
190 mV
100 kHz
200 mV
191.620 mV
188.380 mV
191.810 mV
188.190 mV
0.1 V
50 Hz
2V
0.10115 V
0.09885 V
0.10120 V
0.09880 V
1.9 V
20 Hz
2V
1.91620 V
1.88380 V
1.91810 V
1.88190 V
1.9 V
45 Hz
2V
1.90385 V
1.89615 V
1.90480 V
1.89520 V
1.9 V
20 kHz
2V
1.903985 V
1.89615 V
1.90480 V
1.89520 V
1.9 V
50 kHz
2V
1.90670 V
1.89330 V
1.90765 V
1.89235 V
1.9 V
100 kHz
2V
1.91620 V
1.88380 V
1.91810 V
1.88190 V
1V
50 Hz
20 V
1.0115 V
0.9885 V
1.0120 V
0.9880 V
19 V
20 Hz
20 V
19.1620 V
18.8380 V
19.1810 V
18.8190 V
19 V
45 Hz
20 V
19.0385 V
18.9615 V
19.0480 V
18.9520 V
19 V
20 kHz
20 V
19.0385 V
18.9615 V
19.0480 V
18.9520 V
19 V
50 kHz
20 V
19.0670 V
18.9330 V
19.0765 V
18.9235 V
19 V
100 kHz
20 V
19.1620 V
18.8380 V
19.1810 V
18.8190 V
10 V
50 Hz
200 V
10.115 V
9.885 V
10.120 V
9.880 V
190 V
45 Hz
200 V
190.385 V
189.615 V
190.480 V
189.520 V
190 V
20 kHz
200 V
190.39 V
189.62 V
190.480 V
189.520 V
190 V
50 kHz
200 V
190.670 V
189.330 V
190.765 V
189.235 V
190 V
100 kHz
200 V
191.620 V
188.380 V
191.810 V
188.190 V
750 V
50 Hz
30 V
30.42 V
29.58 V
30.44 V
29.57 V
750 V
45 Hz
750 V
751.50 V
748.50 V
751.88 V
748.13 V
750 V
20 kHz
750 V
751.50 V
748.50 V
751.88 V
748.13 V
750 V
50 kHz
750 V
752.63 V
747.48 V
753.00 V
747.00 V
750 V
100 kHz
750 V
756.38 V
743.62 V
757.13 V
742.88 V
3-5
8808A
Calibration Manual
4-Wire Ohms Verification
To verify the 4-Wire Ohms function of the Meter, connect it to the test equipment as
shown in Figure 3-2 and apply the resistances listed in Table 3-4.
Connect 57X0A and 5725A Callibrator to the UUT as follows:
8808A
INPUT
57X0A
SENSE
V
4W
Set 57X0A to EXT Sense
2W/4W
HI
1000V MAX
750V
HI
1000 V
600 V
CAT I
CAT II
300V
1V
LO
LO
500 Vpk
200 mA
MAX
OUTPUT
V ΩA
10 A
MAX
mA
10A
HI
HI
LO
LO
SENSE
VA
WIDEBAND
HI
NC
AUX
GUARD
CURRENT
GROUND
NC
UUT
57X0A
Input
HI
Output
HI
Input
LO
Output
LO
Sense 4W
HI
Sense
HI
Sense 4W
LO
Sense
LO
ffw003.eps
Figure 3-2. 4-Wire Ohms Test Setup
Table 3-4. 4-Wire Ohms Verification Steps
90-Day Test Limit
Range
0Ω
200 Ω
0.008 Ω
-0.008 Ω
0.008 Ω
-0.008 Ω
190 Ω
200 Ω
STD+0.046 Ω [1]
STD-0.046 Ω [1]
STD+0.065 Ω [1]
STD-0.065 Ω [1]
0 kΩ
2 kΩ
0.00004 kΩ
High
Low
High
-0.00004 kΩ
[1]
STD-0.00033 kΩ
Low
0.00006 kΩ
[1]
STD+0.00044 kΩ
-0.00006 kΩ
[1]
STD-0.00044 kΩ [1]
1.9 kΩ
2 kΩ
STD+0.00033 kΩ
0 kΩ
20 kΩ
0.0004 kΩ
-0.0004 kΩ
0.0006 kΩ
-0.0006 kΩ
19 kΩ
20 kΩ
STD+0.0033 kΩ [1]
STD-0.0033 kΩ [1]
STD+0.0044 kΩ [1]
STD-0.0044 kΩ [1]
[1] 5700 reading + resistance
3-6
1-Year Test Limit
Nominal
Input
Performance Verification and Calibration
2-Wire Ohms Verification
3
2-Wire Ohms Verification
To verify the 2-Wire Ohms function of the Meter, connect it to the test equipment as
shown in Figure 3-3 and apply the resistances listed in Table 3-5.
Connect 57X0A and 5725A Callibrator to the UUT as follows:
8808A
INPUT
57X0A
SENSE
4W
V
Set 57X0A to EXT Sense and 2-wire Comp On
2W/4W
HI
1000V MAX
750V
HI
1000 V
600 V
CAT I
CAT II
300V
1V
LO
LO
500 Vpk
200 mA
MAX
OUTPUT
V ΩA
10 A
MAX
mA
10A
HI
HI
LO
LO
SENSE
VA
WIDEBAND
HI
NC
AUX
GUARD
CURRENT
GROUND
NC
UUT
57X0A
Input
HI
Output
HI
Input
LO
Output
Input
HI
Sense
HI
Input
LO
Sense
LO
LO
Note: Connect the 57X0A sense leads to the UUT first!
ffw002.eps
Figure 3-3. 2-Wire Ohms Test Setup
Table 3-5. 2-Wire Ohms Verification Steps
90-Day Test Limit
1-Year Test Limit
Nominal
Input
Range
0Ω
200 Ω
0.008 Ω
-0.008 Ω
0.008 Ω
-0.008 Ω
190 Ω
200 Ω
STD+0.046 Ω [1]
STD-0.046 Ω [1]
STD+0.065 Ω [1]
STD-0.065 Ω [1]
0 kΩ
2 kΩ
0.00004 kΩ
High
Low
High
-0.00004 kΩ
[1]
Low
0.00006 kΩ
-0.00006 kΩ
STD-0.0044 kΩ [1]
2 kΩ
STD+0.00033 kΩ
0 kΩ
20 kΩ
0.0004 kΩ
-0.0004 kΩ
0.0006 kΩ
-0.0006 kΩ
19 kΩ
20 kΩ
STD+0.0033 kΩ [1]
STD-0.0033 kΩ [1]
STD+0.0044 kΩ [1]
STD-0.0044 kΩ [1]
0 kΩ
200 kΩ
0.004 kΩ
-0.004 kΩ
0.006 kΩ
-0.006 kΩ
190 kΩ
200 kΩ
STD+0.033 kΩ
0 MΩ
2 MΩ
0.00006 MΩ
STD-0.033 kΩ
-0.00006 MΩ
[1]
STD+0.0044 kΩ
[1]
1.9 kΩ
[1]
STD-0.00033 kΩ
[1]
STD+0.044 kΩ
0.00008 MΩ
[1]
STD-0.044 kΩ [1]
-0.00008 MΩ
3-7
8808A
Calibration Manual
Table 3-5. 2-Wire Ohms Verification Steps (cont.)
90-Day Test Limit
1-Year Test Limit
Nominal
Input
Range
1.9 MΩ
2 MΩ
STD+0.00063 MΩ[1] STD-0.00063 MΩ[1]
STD+0.00084 MΩ[1] STD-0.00084 MΩ[1]
0 MΩ
20 MΩ
0.0006 MΩ
0.0006 MΩ
High
STD+0.0386 MΩ
Low
High
-0.0006 MΩ
[1]
STD-0.0386 MΩ
[1]
Low
-0.0006 MΩ
STD+0.0481 MΩ
[1]
STD-0.0481 MΩ [1]
19 MΩ
20 MΩ
0 MΩ
100 MΩ 0.004 MΩ
-0.004 MΩ
0.004 MΩ
-0.004 MΩ
100 MΩ
100 MΩ STD+1.504 MΩ [1]
STD-1.504 MΩ [1]
STD+1.754 MΩ [1]
STD-1.754 MΩ [1]
[1] 5700 reading + resistance
Direct Current Verification
To verify the Amps dc function of the Meter, connect it to the test equipment as shown in
either Figure 3-4 or Figure 3-5 depending on current level and apply the current levels
listed in Table 3-6.
Connect 57X0A and 5725A Callibrator to the UUT as follows:
8808A
INPUT
57X0A
SENSE
V
4W
2W/4W
HI
1000V MAX
750V
HI
1000 V
600 V
CAT I
CAT II
300V
1V
LO
LO
500 Vpk
200 mA
MAX
OUTPUT
V ΩA
10 A
MAX
mA
10A
HI
HI
LO
LO
SENSE
VA
WIDEBAND
HI
NC
AUX
GUARD
CURRENT
UUT
Input
57X0A
mA
Output
HI
LO
Output
LO
10A
AUX Current Output HI
Figure 3-4. Less than 2 Amps Direct and Alternating Current Test Setup
3-8
GROUND
ffw004.eps
Performance Verification and Calibration
Direct Current Verification
3
Connect 57X0A and 5725A Callibrator to the UUT as follows:
8808A
INPUT
57X0A
SENSE
V
4W
2W/4W
HI
1000V MAX
750V
HI
1000 V
600 V
CAT I
CAT II
300V
1V
LO
LO
500 Vpk
200 mA
MAX
OUTPUT
V ΩA
10 A
MAX
mA
10A
SENSE
VA
HI
HI
LO
LO
WIDEBAND
HI
NC
AUX
GUARD
CURRENT
GROUND
5725A
CURRENT
OUTPUT
UUT
Input
HI
5725A
10A
Current Output HI
LO
Current Output LO
11A
MAX
LO
2OV
PK
MAX
ffw005.eps
Figure 3-5. 2 Amps and Greater Direct and Alternating Current Test Setup
Table 3-6. Direct Current Verification Steps
Nominal
Input
Range
90-Day Test Limit
High
Low
1-Year Test Limit
High
Low
0 μA
200 μA
0.010 μA
-0.010 μA
0.010 μA
-0.010 μA
190 μA
200 μA
190.048 μA
189.952 μA
190.067 μA
189.933 μA
-190 μA
200 μA
-189.952 μA
-190.048 μA
-189.933 μA
-190.067 μA
0 μA
2000 μA
0.10 μA
-0.10 μA
0.10 μA
-0.10 μA
1900 μA
2000 μA
1900.39 μA
1899.62 μA
1900.48 μA
1899.52 μA
-1900 μA
2000 μA
-1899.62 μA
-1900.39 μA
-1899.52 μA
-1900.48 μA
0 mA
20 mA
0.0040 mA
-0.0040 mA
0.0040 mA
-0.0040 mA
19 mA
20 mA
19.0097 mA
18.9903 mA
19.0116 mA
18.9884 mA
-19 mA
20 mA
-18.9903 mA
-19.0097 mA
-18.9884 mA
-190.0116 mA
0 mA
200 mA
0.010 mA
-0.010 mA
0.020 mA
-0.020 mA
190 mA
200 mA
190.048 mA
189.952 mA
190.073 mA
189.927 mA
-190 mA
200 mA
-189.952 mA
190.048 mA
-189.927 mA
-190.073 mA
3-9
8808A
Calibration Manual
Table 3-6. Direct Current Verification Steps (cont.)
Nominal
Input
90-Day Test Limit
Range
High
1-Year Test Limit
Low
High
Low
0A
2A
0.00040 A
-0.00040 A
0.00040 A
-0.00040 A
1.9 A
2A
1.90135 A
1.89865 A
1.90192 A
1.89808 A
-1.9 A
2A
-1.89865 A
-1.90135 A
-1.89808 A
-1.90192 A
0A
10 A
0.0010 A
-0.0010 A
0.0010 A
-0.0010 A
10 A
10 A
10.0190 A
9.9810 A
10.0210 A
9.9790 A
-10 A
10 A
-9.9810 A
-10.0190 A
-9.9790 A
-10.0210 A
Alternate Current Verification
To verify the Amps ac function of the Meter, connect it to the test equipment as shown in
either Figure 3-4 or Figure 3-5 depending on current level and apply the current levels
listed in Table 3-7.
Table 3-7. Alternating Current Verification Steps
Nominal Input
Ampl.
3-10
Freq.
Range
90-Day Test Limit
High
Low
1-Year Test Limit
High
Low
1 mA
45 Hz
20 mA
1.0125 mA
0.9875 mA
1.0150 mA
0.9850 mA
19 mA
20 Hz
20 mA
19.2000 mA
18.8000 mA
19.2495 mA
18.7505 mA
19 mA
45 Hz
20 mA
19.058 mA
18.943 mA
19.0690 mA
18.9310 mA
19 mA
2 kHz
20 mA
19.0575 mA
18.9425 mA
19.0690 mA
18.9310 mA
10 mA
45 Hz
200 mA
10.125 mA
9.875 mA
10.150 mA
9.850 mA
190 mA
20 Hz
200 mA
191.620 mA
188.380 mA
192.020 mA
187.980 mA
190 mA
45 Hz
200 mA
190.575 mA
189.425 mA
190.690 mA
189.310 mA
190 mA
2 kHz
200 mA
190.575 mA
189.425 mA
190.690 mA
189.310 mA
0.1 A
45 Hz
2A
0.10125 A
0.09875 A
0.10150 A
0.09850 A
1.9 A
20 Hz
2A
1.92000 A
1.88000 A
1.92495 A
1.87505 A
1.9 A
45 Hz
2A
1.90575 A
1.89425 A
1.90690 A
1.89310 A
1.9 A
2 kHz
2A
1.90575 A
1.89425 A
1.90690 A
1.89310 A
0.5 A
45 Hz
10 A
0.5118 A
0.4883 A
0.5145 A
04855 A
10 A
40 Hz
10 A
10.1100 A
9.8900 A
10.1370 A
9.8630 A
10 A
45 A
10 A
10.0450 A
9.9550 A
10.0620 A
9.9380 A
10 A
1 kHz
10 A
10.0450 A
9.9550 A
10.0620 A
9.9380 A
Performance Verification and Calibration
Frequency Verification
3
Frequency Verification
Use the function generator to apply the frequencies listed in Table 3-8.
Table 3-8. Frequency Verification Steps
Nominal Input
Ampl.
Range
Freq.
90-Day Test Limit
1-Year Test Limit
High
Low
High
Low
0.1 V
20 Hz
2000 Hz
20.04 Hz
19.96 Hz
20.06 Hz
19.94 Hz
0.1 V
50 Hz
2000 Hz
50.01 Hz
50.00 Hz
50.01 Hz
50.00 Hz
0.1 V
1900 Hz
2000 Hz
1900.19 Hz
1899.81 Hz
1900.19 Hz
1899.81 Hz
0.1 V
19 kHz
20 kHz
19.0023 Hz
18.9977 Hz
19.0025 Hz
18.9975 Hz
0.1 V
195 kHz
200 kHz
195.024 Hz
194.977 Hz
195.026 Hz
194.975 Hz
0.1 V
1000 kHz
1000 kHz
1000.14 Hz
999.86 Hz
1000.16 Hz
999.84 Hz
Adjustment (Calibration)
Meter adjustments, or calibration, should be performed at the desired interval, or
whenever a verification test indicates a Meter function is out of tolerance. The Meter
accuracy will stay within specifications only if the adjustment procedure is performed at
regular intervals. A one-year interval is adequate for most applications. The Meter’s
accuracy specifications are not valid beyond the one-year interval.
Equipment for Calibration
The required equipment for calibration is the same as the equipment listed in Table 3-1.
Adjustment Process
The Meter adjustment process can either be managed through the front panel of the Meter
or through the RS-232 port. In addition, a completely automated procedure is available as
a Fluke Met/Cal program.
Front Panel Adjustments
To put the Meter in the calibration mode, remove the CAL seal and press the Cal Enable
button located on the bottom-right side of the front panel with a thin needle. CAL will
appear in the secondary display with six flashing dashes in the primary display.
To calibrate a function:
1. Push A, B, D, E, F, or O to start the calibration process. A
recommended calibration value will appear in the primary display and continue to
flash until the input is set.
Note
The recommended value can be overwritten by pushing C for
the + or – sign and a through f for the six digits.
2. With a stable input to the Meter, push R to start calibrating the current calibration
point. The displayed value freezes and a flashing star appears in the display. The
Meter automatically makes the necessary adjustment to bring the Meter into
specification. No internal mechanical adjustments are necessary.
The adjustment steps are divided into six areas by six functions. Table 3-9 lists the
calibration steps and indicates the function/command, calibration point, required input
signal with frequency, and a description.
3-11
8808A
Calibration Manual
Table 3-9. Adjustment Steps
Step
Func./Command
Point
Input Signal
Description
Volts DC: zero points using the 4-wire short
1
VDC
0 mV/0V
0 mV
Zero point of VDC, all ranges
Volts DC: Gains – Adjust using 5700A/5725A
2
VDC
-199.9 mV
-199.9 mV
3
VDC
-100 mV
-100 mV
4
VDC
100 mV
100 mV
5
VDC
199.9 mV
199.9 mV
6
VDC
-1.999 V
-1.999 V
7
VDC
-1 V
-1 V
8
VDC
1V
1V
9
VDC
1.999 V
1.999 V
10
VDC
-19.99 V
-19.99 V
11
VDC
-10 V
-10 V
12
VDC
10 V
10 V
13
VDC
19.99 V
19.99 V
14
VDC
-199.9 V
-199.9 V
15
VDC
-100 V
-100 V
16
VDC
100 V
100 V
17
VDC
199.9 V
199.9 V
18
VDC
-1000 V
-1000 V
19
VDC
-500 V
-500 V
20
VDC
500 V
500 V
21
VDC
1000 V
1000 V
Gain of VDC, 200 mV range
Gain of VDC, 2 V range
Gain of VDC, 20 V range
Gain of VDC, 200 V range
Gain of VDC, 1000 V range
Volts AC: Zero points – Adjust with 5700A in standby or disconnected
22
VAC
0 mV/0 V
0 mV
Zero point of VAC, all ranges
Volts AC: Gains – Adjust using 5700A/5725A
3-12
23
VAC
10 mV
10 mV@1 kHz
24
VAC
100 mV
100 mV@1 kHz
25
VAC
150 mV
150 mV@1 kHz
26
VAC
199.9 mV
199.9 mV@1 kHz
27
VAC
0.1 V
0.1 V@1 kHz
28
VAC
1V
1 V@1 kHz
29
VAC
1.5 V
1.5 V@1 kHz
30
VAC
1.999 V
1.999 V@1 kHz
Gain of VAC, 200 mV range
Gain of VAC, 2 V range
Performance Verification and Calibration
Adjustment (Calibration)
3
Table 3-9. Adjustment Steps (cont.)
Step
Func./Command
Point
Input Signal
31
VAC
1V
1 V@1 kHz
32
VAC
10 V
10 V@1 kHz
33
VAC
15 V
15 V@1 kHz
34
VAC
19.99 V
19.99 V@1 kHz
35
VAC
10 V
10 V@1 kHz
36
VAC
100 V
100 V@1 kHz
37
VAC
150 V
150 V@1 kHz
38
VAC
199.9 V
199.9 V@1 kHz
39
VAC
37.5 V
37.5 V@1 kHz
40
VAC
200 V
200 V@1 kHz
41
VAC
500 V
500 V@1 kHz
42
VAC
750 V
750 V@1 kHz
Description
Gain of VAC, 20 V range
Gain of VAC, 200 V range
Gain of VAC, 750 V range
Frequency – Adjust using 5520A
43
FREQ
500 Hz
1.9 V@500 Hz
44
FREQ
1 kHz
1.9 V@1 kHz
45
FREQ
1.5 kHz
1.9 V@1.5 kHz
46
FREQ
5 kHz
1.9 V@5 kHz
47
FREQ
10 kHz
1.9 V@10 kHz
48
FREQ
15 kHz
1.9 V@15 kHz
49
FREQ
50 kHz
1.9 V@50 kHz
50
FREQ
100 kHz
1.9 V@100 kHz
51
FREQ
150 kHz
1.9 V@150 kHz
52
FREQ
250 kHz
1.9 V@250 kHz
53
FREQ
500 kHz
1.9 V@500 kHz
54
FREQ
750 kHz
1.9 V@750 kHz
Frequency
Ohms – Adjust using 5520A
55
OHMS
0Ω
0 Ω, 4Wire
Zero point of OHMS, 200 Ω
range
56
OHMS
50 Ω
50 Ω, 4Wire
Gain of OHMS, 200 Ω range
57
OHMS
100 Ω
100 Ω, 4Wire
58
OHMS
150 Ω
150 Ω, 4Wire
59
OHMS
1Ω
1 Ω, 4Wire
60
OHMS
0.5 kΩ
0.5 kΩ, 4Wire
61
OHMS
1 kΩ
1 kΩ, 4Wire
62
OHMS
1.5 kΩ
1.5 kΩ, 4Wire
Gain of OHMS, 2 kΩ range
3-13
8808A
Calibration Manual
Table 3-9. Adjustment Steps (cont.)
Step
Func./Command
Point
Input Signal
63
OHMS
10 Ω
10 Ω, 4Wire
64
OHMS
5 kΩ
5k Ω, 4Wire
65
OHMS
10 kΩ
10 kΩ, 4Wire
66
OHMS
15 kΩ
15 kΩ, 4Wire
67
OHMS
100 Ω
100 Ω,2Wire
68
OHMS
50 kΩ
50 kΩ,2Wire
69
OHMS
100 kΩ
100 kΩ,2Wire
70
OHMS
150 kΩ
150 kΩ,2Wire
71
OHMS
1 kΩ
1 kΩ,2Wire
72
OHMS
0.5 MΩ
0.5 MΩ,2Wire
73
OHMS
1 MΩ
1 MΩ,2Wire
74
OHMS
1.5 MΩ
1.5 MΩ,2Wire
75
OHMS
10 kΩ
10 kΩ,2Wire
76
OHMS
5 MΩ
5 MΩ,2Wire
77
OHMS
10 MΩ
10 MΩ,2Wire
78
OHMS
15 MΩ
15 MΩ,2Wire
79
OHMS
100 kΩ
100 kΩ,2Wire
80
OHMS
20 MΩ
20 MΩ,2Wire
81
OHMS
50 MΩ
50 MΩ,2Wire
82
OHMS
100 MΩ
100 MΩ,2Wire
Description
Gain of OHMS, 20 kΩ range
Gain of OHMS, 200 kΩ range
Gain of OHMS, 2 MΩ range
Gain of OHMS, 20 MΩ range
Gain of OHMS, 100 MΩ range
Current AC: zero points – Adjust using 5700A/5725A
83
AAC
0 mA/0 A
Open, no connection
Zero point of AAC, all ranges
Gain of AAC, 20 mA range
Current AC: Gains – Adjust using 5700A/5725A
3-14
84
AAC
1 mA
1 mA@500 Hz
85
AAC
5 mA
5 mA@500 Hz
86
AAC
10 mA
10 mA@500 Hz
87
AAC
19.99 mA
19.99 mA@500 Hz
88
AAC
10 mA
10 mA@500 Hz
89
AAC
50 mA
50 mA@500 Hz
90
AAC
100 mA
100 mA@500 Hz
91
AAC
199.9 mA
199.9 mA@500 Hz
92
AAC
0.1 A
0.1 A@500 Hz
93
AAC
0.5 A
0.5 A@500 Hz
94
AAC
1A
1 A@500 Hz
95
AAC
1.999 A
1.999 A@500 Hz
Gain of AAC, 200 mA range
Gain of AAC, 2 A range
Performance Verification and Calibration
Adjustment (Calibration)
3
Table 3-9. Adjustment Steps (cont.)
Step
Func./Command
Point
Input Signal
96
AAC
0.5 A
0.5 A@500 Hz
97
AAC
2A
2 A@500 Hz
98
AAC
5A
5 A@500 Hz
99
AAC
10 A
10 A@500 Hz
Description
Gain of AAC, 10 A range
Current DC: zero points – Adjust with 5700A in standby or disconnected
100
ADC
0 μA/0 mA/0 A
Open, no connection
Zero point of ADC, all ranges
Gain of ADC, 200 μA range,
need characterize 5520A with
8508A
Current DC: Gains – Adjust using 5700A/5725A
101
ADC
-199.9 μA
-199.9 μA
102
ADC
-100 μA
-100 μA
103
ADC
100 μA
100 μA
104
ADC
199.9 μA
199.9 μA
105
ADC
-1999 μA
-1999 μA
106
ADC
-1000 μA
-1000 μA
107
ADC
1000 μA
1000 μA
108
ADC
1999 μA
1999 μA
109
ADC
-19.99 mA
-19.99 mA
110
ADC
-10 mA
-10 mA
111
ADC
10 mA
10 mA
112
ADC
19.99 mA
19.99 mA
113
ADC
-199.9 mA
-199.9 mA
114
ADC
-100 mA
-100 mA
115
ADC
100 mA
100 mA
116
ADC
199.9 mA
199.9 mA
117
ADC
-1.999 A
-1.999 A
118
ADC
-1 A
-1 A
119
ADC
1A
1A
120
ADC
1.999 A
1.999 A
121
ADC
-10 A
-10 A
122
ADC
-5 A
-5 A
123
ADC
5A
5A
124
ADC
10 A
10 A
Gain of ADC, 2000 μA range,
need characterize 5520A with
8508A
Gain of ADC, 20 mA range
Gain of ADC, 200 mA range,
need characterize 5520A with
8508A
Gain of ADC, 2 A range, need
characterize 5520A with
8508A@±1.999 A
Gain of ADC, 10 A range
When the calibration point finishes calibration and another calibration point is part of the
selected function, a new recommended calibration value will be displayed automatically.
Input the proper signal and repeat step 2 above.
When the last calibration point for the selected function finishes, the Meter will go to
IDLE mode where CAL appears in the secondary display and six flashing dashes appear
3-15
8808A
Calibration Manual
in the primary display. Return to step 1 above and select the next function for calibration.
Press Q to exit the calibration mode at any time. If a function has not been completely
calibrated, a CAL ERROR will be displayed.
Note
When 4WIRE shows in the display, 4-wire compensation is enabled on the
input.
Note
When in current calibration, if ZERO point is calibrated all test leads shall
be removed. Use the mA input terminal for low current range (1, 2, 3, and 4
for ADC and 1 or 2 for AAC). Use the 10A input terminal for high current
range (5 or 6 for ADC and 3 or 4 for AAC).
Note
Set the calibrator to 1.9 volts for frequency calibration input.
RS-232 Calibration (Manual)
A manual calibration of the Meter is possible by typing commands through the RS-232
port from a PC and making manual adjustments of the test equipment. To use the RS-232
port to calibrate the Meter, connect a PC to the Meter using a null-modem cable. Set the
PC in the Hyper Terminal mode to enable communication between the PC and the Meter.
Note
All commands should be ASCII codes.
Enable calibration by sending “*TER” to the Meter. The Meter will return “Select a
Function or input EXIT to QUIT!”.
1. Send “VDC”, “VAC”, “ADC”, “AAC”, “OHMS”, or “FREQ” to the Meter to select the
function you want to calibrate. The Meter will return “XXXXXX V, 0 HZ” where
XXXXXX is the recommended calibration value. The value also shows in the Meter
display.
Note
The recommended value can be overwritten by sending the Meter a
new value as “CALREF XXXXXX”. If the value is acceptable
“=>” will be returned, otherwise “!>” will be returned.
2. Push the “Enter” key to confirm the calibration value.
3. With a stable input to the Meter, push the “Enter” key to start calibrating the current
calibration point. The Meter will return the string “WAIT…” while calibrating.
When the calibration point finishes calibration and another calibration point is part of the
selected function, a new recommended calibration value is sent automatically. Input the
proper signal and repeat step 3 above.
Note
Once a function is selected for calibration, all calibration points must be
calibrated before exiting the calibration process. Otherwise a CALL
ERROR will show in the display.
When the last calibration point for the selected function finishes, the Meter will go to
IDLE mode and the Meter will send the string “Select a Function or input
EXIT to QUIT!”. Return to step 1 above and select the next function for calibration.
Send the string “EXIT” to exit the calibration mode at any time. If a function has not
been completely calibrated, a CAL ERROR will be displayed.
3-16
Performance Verification and Calibration
Adjustment (Calibration)
3
Note
When the Meter returns a recommended calibration value followed by
“W4”, 4-wire compensation is enabled on the input.
Note
When in current calibration, if “Disconnect Test Leads!” is returned, all
test leads should be removed from the Meter.
Note
When “Connect to mA socket!” is returned from the Meter, use the mA
input terminal to connect to the calibrator. When “Connect to 10A socket”
is returned from the Meter, use the 10A input terminal to connect to the
calibrator.
RS-232 Calibration (Automatic)
Automatic calibration of the Meter is possible using a Fluke Met/Cal program. The
remote program directs the calibration equipment to apply a series of shorts, opens,
voltages, currents, and resistances to the input of the Meter. At each step, the Meter
internally makes the necessary adjustment to bring the Meter into specification. No
internal mechanical adjustments are necessary.
Using an automated, computer-controlled procedure, the calibration and verification
procedures can be performed on the Meter in less than 50 minutes. The 8808A
MET/CAL procedure is available at no charge for MET/CAL Gold Support members
from http://support.fluke.com/met-support-gold. To purchase the procedure, contact
Fluke’s MET/CAL Support group at metsupport@fluke.com.
Calibration Points
Listed below are the calibration values required for each calibration point of the
calibration procedure.
{//adc
{0.0, -0.0001999, -0.0001, 0.0001, 0.0001999}, range 1
{0.0, -0.001999,
-0.001,
0.001, 0.001999},
{0.0, -0.01999,
-0.01,
{0.0, -0.1999,
-0.1,
0.1,
0.1999},
{0.0, -1.999,
-1.0,
1.0,
1.999},
{0.0, -10.0,
-5.0,
5.0,
10.0},
0.01,
0.01999},
range 2
range 3
range 4
range 5
range 6
},
{//aac
{0.0, 0.001, 0.005, 0.01,
0.01999},
{0.0, 0.01,
0.05,
0.1,
0.1999},
{0.0, 0.01,
0.5,
1.0,
1.999},
{0.0, 1.0,
2.0,
5.0,
10.0},
range 1
range 2
range 3
range 4
},
3-17
8808A
Calibration Manual
{//vdc
{0.0, -0.1999, -0.1,
{0.0, -1.999,
0.1,
0.1999},
-1.0, 1.0,
range 1
1.999},
range 2
{0.0, -19.990, -10.0, 10.0, 19.990},
range 3
{0.0, -199.90, -100.0, 100.0, 199.9},
range 4
{0.0, -1000.0, -500.0, 500.0, 1000.0},
range 5
},
{//vac
{0.0,
0.05,
0.10, 0.15, 0.1999},
{0.0,
0.5,
1.0,
{0.0,
5.0,
10.0, 15.0, 19.99},
{0.0,
50.0,
100.0, 150.0, 199.9},
range 4
{0.0,
100.0, 200.0, 500.0, 750.0},
range 5
1.5,
range 1
1.999},
range 2
range 3
},
{//ohm
{0.0,
0.5E+2,
1.0E+2,
1.5E+2},
range 1
{1.0,
0.5E+3,
1.0E+3,
1.5E+3},
range 2
{10.0,
0.5E+4,
1.0E+4,
1.5E+4},
range 3
{100.0,
0.5E+5,
1.0E+5,
1.5E+5},
range 4
{1000.0, 0.5E+6,
1.0E+6,
1.5E+6},
range 5
{10000.0, 0.5E+7,
1.0E+7,
1.5E+7},
range 6
{1.0E+5, 0.2E+8,
0.5E+8,
1.0E+8},
range 7
},
{//hz
{500,
1000,
{5000,
10000,
{50000,
100000,
150000},
range 3
{250000,
500000,
750000},
range 4
},
3-18
1500},
15000},
range 1
range 2
Chapter 4
List of Replaceable Parts
Title
Introduction..........................................................................................................
How to Obtain Parts.............................................................................................
How to Contact Fluke ..........................................................................................
Parts Lists.............................................................................................................
Page
4-3
4-3
4-3
4-4
4-1
8808A
Calibration Manual
4-2
List of Replaceable Parts
Introduction
4
Introduction
This chapter contains an illustrated list of replaceable parts for the Fluke 8808A Digital
Multimeter. Parts are listed by assembly and alphabetized by reference designator. Each
assembly is accompanied by an illustration showing the location of each part and its
reference designator. The parts lists provide the following information:
•
•
•
•
•
Reference designator
Description
Fluke stock number
Total quantity
Any special notes (i.e., factory-selected part)
How to Obtain Parts
Electrical components may be ordered directly from the manufacturer by using the
manufacturer’s part number, or from the Fluke Corporation and its authorized
representatives by using the part number under the heading Part Number.
Parts price information is available from the Fluke Corporation or its representatives.
Prices are also available in a Fluke Replacement Parts Catalog, which is available on
request.
In the event that the part ordered has been replaced by a new or improved part, the
replacement will be accompanied by an explanatory note and if necessary, installation
instructions.
To ensure prompt delivery of the correct part, include the following information when
you place an order:
•
•
•
•
•
•
Instrument model and serial number
Part number and revision level of the pca containing the part.
Reference designator
Fluke stock number
Description (as given under the DESCRIPTION heading)
Quantity
How to Contact Fluke
To contact Fluke, call one of the following telephone numbers:
•
Technical Support USA: 1-800-99-FLUKE (1-800-993-5853)
•
Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853)
•
Canada: 1-800-36-FLUKE (1-800-363-5853)
•
Europe: +31 402-675-200
•
Japan: +81-3-3434-0181
•
Singapore: +65-738-5655
•
Anywhere in the world: +1-425-446-5500
Or, visit Fluke's website at www.fluke.com.
4-3
8808A
Calibration Manual
Parts Lists
Tables 4-1 and 4-2 lists the replaceable parts for the Meter. Figures 4-1 and 4-2 identify
the parts within the Meter.
Table 4-1. Front-Panel Assembly
Ref.
Desig.
4-4
Description
Part
Number
Qty
A1
FLUKE-8808-4002, FLUKE-8808-4002, PCA, DISPLAY/KEYPAD
2536097
1
F1
FUSE,11A,1000V,FAST.406INX1.5IN,BULK
803293
1
F2
FUSE,.440A,1000V, FAST, .406X1.375, BULK
943121
1
H1
SCREW, 6-32, .250, PAN, PHILLIPS, STEEL, ZINC-CLEAR, LOCK
152140
4
H2
SCREW, 8-32, .250, PAN, PHILLIPS, STEEL, ZINC-CLEAR, LOCK
228890
4
H3
SCREW
320093
5
H4
SCREW, SCREW, WH, P, THD FORM, STL, 5-20,.312
494641
3
MP1
8845A-2009, REAR BOOT
2439161
1
MP10
FLUKE-8808A-8001, KEYPAD
2570286
1
MP11
FLUKE-8808A-2001, FRONT PANEL
2570247
1
MP12
8808A-2003, LENS
2570264
1
MP13
FLUKE-8808A-8002, FRONT PANEL DECAL
2570299
1
MP2
8845A-2001, TOP COVER
2439097
1
MP3
FLUKE-8808A-2005, WEDGE
2634240
1
MP4
8845A-2008, HANDLE
2439150
1
MP5
8845A-2010, FRONT BOOT
2439177
1
MP6
8808A, LABEL, CALIBRATION
3077525
1
MP7
FLUKE 867-8008, LABEL, CALIBRATION
948674
1
MP8
8845A-2020, FUSE DOOR
2439239
1
MP9
FLUKE 27-2002 ,COVER, FUSE
665031
1
,SCREW,FHU,P,LOCK,MAG SS,6-32,.250
List of Replaceable Parts
Parts Lists
MP1
4
MP2
MP4
MP3 H4 (4x)
H2 (4x)
MP5
H3 (5x)
MP7
MP8
MP6
MP9
MP12
F1
F2
MP11
MP13
MP10
A1
Front Panel Assembly
H4
Figure 4-1. Front-Panel Assembly
ffw006.eps
4-5
8808A
Calibration Manual
Table 4-2. Chassis Assembly
Ref.
Desig.
4-6
Description
Part
Number
Qty
A2
FLUKE-8808-4003,FLUKE-8808-4003, PCA, INPUT
2536106
1
A3
FLUKE-8808-4001,FLUKE-8808-4001, PCA, MAIN
2536085
1
F3
FUSE, FUSE, .25X1.25, 0.125A, 250V, SLOW
166488
1
F4
FUSE, FUSE, .25X1.25, 0.063A, 250V, SLOW
163030
1
H10
SCREW, 6-32, .250, PAN, SLOT/PHILLIPS COMBO, STEEL,ZINCCHROMATE
855192
1
H5
WASHER, WASHER, LOCK, SPLIT, STL, .168, .307, .040
111070
2
H6
WASHER, WASHER, FLAT, STL, .170, .375, .031
110288
1
H7
NUT, NUT, EXT LOCK, STL, 8-32
195263
1
H8
SCREW, PH, P, LOCK, SS, 6-32, .500
320051
3
H9
CONNECTOR ACCESSORY, D-SUB JACK SCREW, 4-40, .250 L, W/FLAT
WASHER
1777348
2
LC1
LINE CORD, CN, 10A, 250V, PSB-10-1, ESB-10, 227 IEC, RVV 300/500,
980MM (Not shown)
2716592
1
MP14
FILTER PART, FILTER, LINE, PART, FUSE DRWR W/SHRT BAR
944277
1
MP15
FILTER PART, FILTER, LINE, PART, VOLTAGE SELECTOR
944272
1
MP16
POWER ENTRY MODULE, KG10.6101.105, AC INLET, ON/OFF LINE
SWITCH, FUSE DRAWER,BULK
2437071
1
MP17
8808A-2004, CHASSIS
2570273
1
MP18
8845A-2027, HANDLE CAP, PLASTIC PART
2663315
1
MP19
SHIELD CRYSTAL TOP
3184555
1
MP20
SHIELD CRYSTAL BOTTOM
3184562
1
MP21
INSULATOR, .020 INCH THICK
3237934
1
MP22
FLUKE-8008A-2007, SHIELD, AC
3024921
1
MP23
FLUKE 45-2010-03 ,INSULATOR,INPUT RECEPTACLE (RED)
884254
4
MP24
FLUKE 45-2010-04 ,INSULATOR,INPUT RECEPTACLE (BLACK)
884259
2
MP25
TRANSFORMER,POWER,100/120/220/240V,50/60HZ,18V
CT,9W,8808A,BULK
2716605
1
MP26
8808A-8003,REAR PANEL DECAL
2726188
1
TL1
TEST LEAD SET, 600V/1KV, PROBE-R/A PLUG, BLACK/RED (Not shown) 802980
1
TM1
GETTING STARTED, GUIDE, 8808A (Not shown)
2716412
1
TM2
CD-ROM, PROGRAMMER AND USERS MANUAL (Not shown)
2713002
1
W1
2620A-4403, WIRE ASSY,GROUND
874099
1
W2
8845A-4402, WIRE ASSY
2584378
1
W3
CABLE ASSEMBLY, 6 COND, DB9(M), RECEPTACLE, 5.00 L
2734791
1
List of Replaceable Parts
Parts Lists
4
F4
MP14, F3
MP15
MP16
H2
H10
H5 (2x)
H7
H6
MP17
MP18
MP19
MP26
MP25
MP20
A3
Chassis Assembly
A2
MP24 (2x)
MP23 (4x)
H9
MP22
W1
MP21
H8 (3x)
W2
W3
Figure 4-2. Chassis Assembly
ffw007.eps
4-7
8808A
Calibration Manual
4-8
Download PDF