HP 5382a Operating and Service Manual

 FREQUENCY COUNTER
5382A
OPERATING AND SERVICE MANUAL
SERIAL PREFIX: 1804A
This manual applies directly to HP Model 5382A Fre-
quency Counters having the above serial number
prefix.
NEWER INSTRUMENTS
This manual, with enclosed “Manual Changes” sheet,
applies to HP Model 5382A Frequency Counters having
serial number prefixes as listed on the “Manual Changes”
sheet.
OLDER INSTRUMENTS
For serial prefixes below the serial prefix shown above,
refer to Section VII for manual backdating instructions.
Copyright . HEWLETT-PACKARD COMPANY 1974
5201 STEVENS CREEK BLVD., SANTACLARA, CALIF. 95050
MANUAL PART NUMBER 05382-90008
MICROFICHE PART NUMBER 05382-90009
Printed: APRIL 1978
Ca EN
CERTIFICATION
The Hewlett-Packard Company certifies that this instrument was
thoroughly tested and inspected and found to meet its published
specifications when it was shipped from the factory. The Hewlett-
Packard Company further certifies that its calibration measure-
ments are traceable to the U.S. National Bureau of Standards to
the extent allowed by the Bureau's calibration facility. |
WARRANTY AND ASSISTANCE
This Hewlett-Packard product is warranted against defects in
materials and workmanehip. This warranty applies for one year
from the date of delivery, or, in the case of certain major com-
ponents listed in the manual, for the specified period.
We will repair or replace products which prove to be defective
during the warranty period provided they are returned to Hewlett-
Packard. No other warranty is expressed or implied. We are not
liable for consequential damages.
Service contracts or customer assistance agreements are available
for Hewlett-Packard products that require maintenance and repair
on-site. | |
For any assistance, contact your nearest Hewlett-Packard Sales and
Service Office.
Model 5382A
(General Information
CORD SET 8120-1378
Figure 1-1. Model 5382A and Equipment Supplied
1-0
Model 5382A
General Information
SECTION |
GENERAL INFORMATION
1-1. INTRODUCTION
1-2. This section of the manual gives a description of the instrument, information on instrument
identification and available options, and complete specifications.
1-3. INSTRUMENT DESCRIPTION
1-4. The HP Model 5382A Frequency Counter (see Figure 1-1) is a direct-counting frequency
counter that has a range of 10 Hz to 225 MHz. Eight display digits are provided. Front-panel con-
trols allow a selection of gate times and attenuation factors of the input signal. A rear-panel con-
nector and associated selector switch allow connection of an external time base oscillator or
monitoring of the internal time base oscillator. This feature also allows ratio measurements to
be made by the counter. When the optional temperature compensated crystal oscillator is included
(Option 001), the switch is not provided and the connector 18 used to monitor the 10 MHz time
base oscillator. Refer to Table 1-1 for all counter specifications.
1-5. ACCESSORIES AND OPTIONS
1-6. Two accessories are available for mounting the 5382A counter onto the user's rack. The
10851A kit permits the mounting of a single counter, while the 10852A kit is used for mounting
two counters in a side-by-side configuration. Refer to Section II for detailed rack mounting kit
information.
1-7. - Option 001 provides a more accurate and stable time base oscillator. This Temperature
Compensated Crystal Oscillator (TCXO) installation modifies the rear panel so that the connector
is used only as a MONITOR output. As a result, an external standard (i.e., time base) cannot be
applied to the Option 001 counter, |
1-8. INSTRUMENT IDENTIFICATION
1-9. Hewlett-Packard uses a 2-section, 10-character serial number (0000А00000) mounted on
the rear panel to identify the instrument. The first four digits are the serial prefix and the last five
digits refer to the specific instrument. The alphabetical character identifies the country of manu-
facture. If the serial prefix on your instrument differs from that listed on the title page of this
manual, there are differences between the manual and your instrument. Any lower serial pre-
fixes are documented separately in this manual, and higher serial prefixes are covered by a manual
change sheet included with the manual.
1-10. The printed circuit boards within the instrument are identified by a 2-section, 10-digit part
number (e.g., 05382-60004) and a 4-digit series number (e.g., “SERIES 1804”). The series number
identifies the electrical characteristics of the complete printed-circuit assembiy. A replacement
circuit-board assembly may have a different series number than the assembly originally supplied
with the instrument. Therefore, when troubleshooting a circuit-board assembly, ensure that the
series number on the schematic diagram matches the series number on the board assembly. If the
series number of the assembly is lower than the number on the schematic diagram in Section
IX, refer to backdating information in this manual for change information. If the series number
on the assembly is higher than the number on the schematic diagram, the change information 1s
provided in a manual change sheet which 1s available from the nearest Hewlett-Packard Sales and
Service Office.
1-1
Model 53824
General Information
1-11, MICROFICHE NUMBER
1-12. On the title page of this manual, below the manual part number, is the microfiche part
number. This number may be used to order 4 x 6 transparencies of the manual. The microfiche
package also includes the latest Manual Change Supplements as well as ail pertinent Service
Notes.
1-13. RECOMMENDED TEST EQUIPMENT
1-14. Table 4-1 lists test equipment which is recommended for confirming instrument specifica-
tions (i.e., in-cabinet performance tests), as well as troubleshooting and adjusting the instrument.
1-15. SPECIFICATIONS
1-16. Table 1-1 lists the 5382A specifications.
Table 1-1. Specifications
Frequency Range; 10 Hz to 225 MHz
Sensitivity: 25 mV rms - 30 Hz to 10 MHz
50 mV rms - 10 Bz to 225 MHz
input Impedance: 1 MQ, < 40 pF
Accuracy: $1 count + timebase error
Resolution: Direct count: 1 Hz in 1 second
Gate Time: 0.1 second, 1 second, 10 seconds
Dispiay: 8 LED Digits, nonsignificant zero blanking
Rear Panel Input: Sensitivity: 250 mV rms
Impedance: » 5000
Maximum Input: 10Y rms
Control: Internal/ External
Switch on rear panel
Ratio: Rear Panel Input, 160 kHz to 10 MHz
External Frequency Standard: Rear Panel Input, 10 MHz
Timebase Output: Frequency: 10 MHz timebase
| Voltage: 200 mVpp into 50Q load
Control: Active with Rear Panel
Internal/External
switch in Internal position.
Timebase: Frequency: 10 MHz
Aging: <0.3 ppm/month
Temperature: +2.5 ppm 0°C to 40°C
Line Voltage: 0.5 ppm for 10% line change
Overfiow: LED lamp indicator when most significant
digit overflows - |
Reset: Manual selection of reset occurs when GATE
TIME switch is between three normal positions.
Package: Rugged, high strength metal case
Operating Temperature: 0°C to 40°C
Power Requirements: 100, 120, 220, 240 V rms {+ 5%,
10%) 48-440 Hz: 30 VA maximum
Weight: Net: 2.2 kg (4.75 1b); Shipping: 2.8 kg (6 1b)
Dimensions: 98 mm H x 160 mm W x 248 mm D (3.5”
х 6.25” х 9.75”)
Rack Mount Kits: 312” high panels for installation of
one or two 5380 family counters. Kit 1s also useful
with HP 3311A Function Generator, HP 3470 DVM,
etc.
HP 10851A Kit for single counter mounting
HP 10852A Kit for dua) counter mounting
Maximum input Voitage
X1 LC to 40 Hz
40 Hz to 100 kHz
100 kHz to 5 MHz
200 Vmax (de + peak ac}
200 Мас + 850 \ rms (ac)
200 Vde + 2,5 x 107 Y rms (ac)
freq. {Hz)
>5 MHZ — 200 Vde +5 Y rms fac)
- X10 X100 | DC to 40 Hz 200 Y (de + peak ac)
40 Hz to 1 MHz 200 Vde + 250 V rms (ac)
1 MHz to 50 MHz 200 Yde + 2.5 x 10" Y me (ac/
freq. {Hz}
> 50) MHz 200 Vde + 5 Y rms (ac)
OPTION 601
Temperature Compensated Crystal Oscillator Frequency: 10 MHz
Aging: <0.1 ppm/month
Temperature: +1 ppm 0°C to 40°C
Line Voltage: 1 part in 107 for 10% change
External input replaced with Osciliator Monitor Output on Option 001
1-2
vins
Model H3B2A
Installation
SECTION It
INSTALLATION
2-1. INTRODUCTION
2.2. This section of the manual provides information about unpacking, inspecting, storing, and
shipping the frequency counter.
2-3. UNPACKING AND INSPECTION
2-4. If the shipping carton is damaged, ask that the carrier's agent be present when the instru-
ment is unpacked. Inspect the instrument for damage such as scratches, dents, broken switches,
ete. If the instrument is damaged or fails to meet performance tests, notify the carrier and the
nearest Hewlett-Packard Sales and Service Office immediately. Performance check procedures
are located in Section IV, and Sales and Service Offices are listed at the back of this manual,
Retain the shipping carton and the padding material for the carrier's inspection. The Sales and
Service Office will arrange for the repair or replacement of the instrument without waiting for
the claim against the carrier to be settled. |
2-5. STORAGE AND SHIPMENT
26. PACKAGING. To protect valuable electronic equipment during storage or shipment,
always use the best packaging methods available. Your Hewlett-Packard Sales and Service:
Office can provide packaging material such as that used for original factory packaging. Contract
packaging companies in many cities can provide dependable custom packaging on short notice.
2.7 ENVIRONMENT. Conditions during storage and shipment should normally be limited as
follows: | |
a. Maximum altitude: 25,000 ft.
b. Minimum temperature: -40°F (-40°C),
e Maximum temperature: +131°F (+55°C).
2-8. LINE VOLTAGE SELECTION
2-9. The counter is supplied from the factory with the LINE VOLTAGE SELECTOR switches set
for 120-volt, 60 Hz operation. If any other supply voltage is to be used, change the rear-panel
switch settings as follows:
a Using a small screwdriver, a pencil, or other
suitable tool, set the LINE VOLTAGE
SELECTOR switches on the counters rear 2 POLE, 3 WIRE
panel to the positions shown next to the py
desired voltage marking on the rear panel.
b. Ensure that the correct fuse is installed. Use
a Listed, 500 milliampere, slow-blow fuse for
100-volt or 120-volt operation or a Listed,
950 milliampere, slow-blow fuse for 220-volt
or 240-volt operation.
2.10. If the counter is to be used in the USA with a
240-volt, 60 Hz power source, use a power cord with a
Listed connector of the type shown in Figure 2-1. Figure 2-1, Power Cord Connector for
240-Voit Operation
2-1
anf
Model 5382A
Installation
2-2
2-11. MOUNTING
2-12. The 5382A Frequency Counter is built to be portable, and may be used at any test bench
position. Two kits are availabie for the user who desires to mount his counter on a rack. Kit
10851A permits one counter to be mounted in the center of a rack, while Kit 10852A allows the
user to mount two counters, side-by-side on a rack. Figure 2-2 describes how to mount the counter
— onto the rack provided. Figure 2-3 shows these kits and provides a component parts list.
1. REMOVE BOTH PLASTIC FEET FROM INSTRUMENT.
2. LOOSELY INSTALL STANDOFFS BETWEEN SCREW HOLES IN BRACKET.
3. PUSH INSTRUMENT THRU PROFILED CUTOUT IN BRACKET,
4. TIGHTEN CLAMPING SCREWS,
CLAMPING
7 SCREWS
Т / BRACKET
RC, BF dale osname ia
í et STANDOFF
/ /
LA
LA
E
A
LA
LA
Pal
LA
LA
/ +
Lena
Figure 2-2. Rack Mounting Instructions
Model 5382A
Installation
nen 5
19.00"
[48.26 CM)
rem
ITEM) PART | DESCRIPTION RIT RIT 19.00"
NUMBER IOBSIA 10852 ff e 250
(A) | 2360-0200 FLAT HEAD SCREW 4 в | в
0380-0988 | EX FET 2 3 EN 281"
© | esoo mo | | a
® | 10852-00001 | SERGE (pose) | |
Figure 2-3. Rack Mounting Kit
2-3
Model 5382A
Operation
SECTION III
OPERATION
3-1. INTRODUCTION
2.2. This section contains descriptions of the controls, connectors and indicators, measurement
techniques, and operator checks.
‚3-3. CONTROLS, CONNECTORS AND INDICATORS
3-4. Figures 3-1 and 3-2 describe the operation of the 5382A controls and the function of the
various connectors and indicators. The following paragraphs also provide operating guidelines
and brief operator maintenance procedures for the frequency counter.
3-5, MEASUREMENT TECHNIQUES
3-6. Noise riding on the input signal can cause erroneous or unstable frequency measurements.
Using the internal attenuator, or external attenuators minimizes this problem. Proper selection
of the input impedance also allows for stable and accurate frequency measurements. When there
is a difference between the signal source impedance and the counter input impedance, ringing
may appear on the signal. This ringing could interfere with, and degrade the capability of the
counter. Knowledge of the signal source circuit characteristics and selection of compatible input
impedances and attenuation permits proper measurements.
3-7. Ratio Measurements (Standard Counter Only)
3-8. The standard counter will measure the ratio between the frequencies of two signals if one
of the signals is applied to the rear-panel OSCILLATOR-EXT IN connector and the other signal is
applied to the front-panel INPUT connector. (The Option 001 counter does not have an external
oscillator input connector). Be sure to refer to Table 1-1 for signal level and frequency limits. The
displayed value is in units which represent the ratio of one frequency to the other as shown by the
following formula: |
frequency at front panel INPUT - Display Value
freq at rear panel OSCILLATOR-EXT IN X
10 if GATE TIME is .1s
where X = 10¢4if GATE TIME is ls
107 11 GATE TIME 1s 10s
2-9 Note that is the above formula the term “X” changes by a factor of 1000 (10%) for each change
in GATE TIME setting. GATE TIME, itself, changes “X” by a factor of 10, and the decimal point
in the display shifts two places (10%) for a total of 105. Note, also, that actual measurement time
increases as the frequency applied to the OSCILLATOR-EXT IN connector decreases. If the fre-
quency applied to the OSCILLATOR-EXT IN conne-tor 1s 1 MHz, for example, and GATE TIME
is set to 1s, actual measurement time will be 10 seconds.
5
Model 5382A
Operation
3-10. OPERATOR CHECKS
3-11. These quick preliminary checks should be performed by the operator when an instrument
‘failure is suspected: | |
Problem I. No display digits are illuminated
CHECK |
a. Equipment cable plugged in?
b. Proper line voltage selected on rear panel? (Refer to Paragraph 2-8.)
С. Rear panel fuse blown? (Refer to Paragraph 2-8.)
Problem I1. Alldisplay digits are not illuminated.
a. This is normal, The counter provides a leading zero blanking feature which blanks non-
significant display digits. The following displays are correct when a signal is not applied
to the counter input:
GATE TIME Switch
Position DISPLAY
MIA
1 S/MHz CI LLLL
| MI
1 S/kHz LEE
, о TH
10 S/H | | | | Do |
3-19. This additional quick and convenient loop-around check is provided to verify normal
operation of the instrument:
a. Set the rear panel INT/EXT switch (exists on the standard counter only) to the INT
position.
b. Set the front panel ATTENUATOR switch to the Xi position.
e. Connect a coaxial cable between the rear panel OSCILLATOR or MONITOR Jack and
the front panel INPUT jack.
d. 10 MHz display (+1 leastsignificant digit) indicates that the counter is operating nor-
mally. The following displays will occur for each position of the GATE TIME switch.
GATE TIME Switch |
Position DISPLAY
, II
1 В/МН Л
1 S/KHZ РГР
Е
10 S/Hz * т TT
roi
Overfiow LH || | и
indicator on)
3-2
Model 5382A
Operation
ATTENUATOR
GATE TIME
5382-A-1
1. Display: Eight digits of LED (light-emitting diode) display are provided on the front
panel. A decimal point illuminates in the proper position according to the setting of
the GATE TIME switch, and an over-range indicator in the upper, left corner of the
display illuminates when the counter overflows. |
9 LINE switch: The ac power LINE switch is a push-on, push-off type; In the on position,
the pushbutton is set further into the front panel. |
3 GATE TIME switch: Gate time (measurement time) can be set at 0.1-second, 1-
second, or 10 seconds with the GATE TIME switch. These positions give resolutions
of 10 Hz, 1 Hz, and 0.1 Hz, respectively. If the GATE TIME switch is set to ls, for
example, it will take one second to make a measurement and the measured value will
be displayed in 1 Hz increments. Manual resetting of the counter circuits occurs when-
ever the GATE TIME switch position is changed. Set the GATE TIME switch to prov-
vide the best compromise between measurement speed and resolution of the dis-
played value. |
4. ATTENUATOR switch: The three-position attenuator switch provides for attenuation
of input signals by factors of 10 and 100. The input signal is not attenuated when the
switch is set to the “X17 position. The attenuator is used to extend the range of input
signal levels that can be measured by the counter and to optimize noise rejection.
Maximum sensitivity of the counter ranges from 25 millivolts rms with the attenuator
set to “X1” to 2.5 volts rms with the attenuator set to “X100”. If the amplitude of a
measured signal is unknown or if signal noise causes the display to be unstable, set the
ATTENUATOR to “X10” or “X100”, then reduce the attenuation, if necessary, until a
stable display is observed. ;
CAUTION
BE SURE THAT THE MAXIMUM ALLOWABLE INPUT
VOLTAGES AS GIVEN IN TABLE 1-1, SPECIFI-
CATIONS, ARE NOT EXCEEDED. DAMAGE TO THE
COUNTER MAY OTHERWISE RESULT.
5. INPUT connector: Connect the signal to be measured to the BNC-type INPUT jack.
Input impedance is 1.0 megohm.
Figure 3-1. Front Panel Operating Controls, Connectors, and Indicators
3-8
Model 5382A
Operation
4.
TOOV MT BET
a VUE >. ov MIMO
ый IRE 200V U ВЫ)
VOLTACE SELECTOR Í Dacy ta E DE
| CAUTION: В
Ф coro PROPER À
M VOLTAGE SELECTION 8
SERIAL HO. a
EXT IN Lan
OSCILLATOR n
EXT INT Sf J
4
5° 2
STANDARD INSTRUMENT REAR VIEW
Power connector: Connect the source of ac power to the rear-panel power connector.
Fuse: A Listed 500 milliampere, slow-blow fuse is required for 100-volt or 120-volt opera-
tion; a Listed 250 milliampere, slow-blow fuse is required for 220-volt or 240-volt operation.
OSCILLATOR connector: Serves as a monitoring point for the internal time base oscilla-
tor, or provides an input path for an external time base oscillator, depending on the EXT/
INT switch setting.
NOTE |
The output is designed to drive a 500 load.
The internal time base oscillator output may be con-
nected to the front panel input jack (with INPUT
switch in the X1 position) to provide a conve
nient counter self-check operation.
EXT/INT switch: Selects the function of the OSCILLATOR connector:
Switch Position OSCILLATOR Connector Function
EXT Provides a nominal 50Q input impedance path for an
external 10 MHz time base or ratio input.
INT Monitors the internal timebase oscillator. An optimum
signal is obtained when the output drives a 500 load
(>200 mV peak-to-peak).
OSCILLATOR-ADJ control: The ADJ contro! is used to set the frequency of the internal
time base oscillator. Refer to the Adjustments paragraphs in Section IV for information.
LINE VOLTAGE SELECTOR switches: Set the switches to correspond with the voltage
of the ac power source. (Refer to Paragraph 2-8 for instructions.)
Figure 3-2. Rear-Pane! Operating Controls and Connectors
Model 53824
Operation
DOY
ь : 220М
YA тов À 222
LINE VOLTAGE SELECT S4OV à
y E ee ee
= | р | MEE CHECK PROPER
- — — — ПНИ EEES VOLTAGE SELECTION
238-440), SOVE MAX À x SERIAL NO.
u.
TP E:
sas
MONITOR
OUTPUT
TCXO OPTION 001
LA EE RI à, ВОО mAT 100/7170 VE
SEY ped TO BOD
OPTION 601 REAR VIEW
7. MONITOR OUTPUT connector: Serves as an internal time base oscillator monitor out-
put connector ONLY {see NOTE under item 3} for Option 001. |
8. TCXO ADJ control: Same as step 5 in adjacent page. Refer to paragraph 4-40 in Section IV
for information on. option 001 time base adjustment.
Figure 3-2. Rear-Panel Operating Controls and Connectors {Contd)