General Information; Introduction; Manual Summary; 1-5. Specifications - HP 5384A Operating And Service Manual

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HP 5384A and HP 5385A
General Information
SECTION I
GENERAL INFORMATION
1-1. INTRODUCTION
1-2. This manual provides you with information
pertaining to the installation, operating, program-
ming, performance tests, adjustments, and main-
tenance of the Hewlett-Packard Models 5384A and
5385A Frequency Counters, shown in Figure 1-1. ·
1-3. MANUAL SUMMARY
1-4. The manual is divided into eight sections, each
covering a particular topic for the operation of the HP
5384A and HP 5385A Frequency Counters. The topics
by section number are:
Section
II
Ill
IV
v
VI
VII
VIII
Topic
General Information
Installation
Operation and Programming
Performance Tests
Adjustments
Replaceable Parts
Manual Changes
Service
1-5. SPECIFICATIONS
1-6. The instrument specifications and option speci-
fications are listed in Table 1-1. These specifications
are performance standards or limits against which the
instrument may be tested.
1-7. SAFETY CONSIDERATIONS
1-8. This is a Safety Class I instrument. This instru-
ment has been designed and tested according to
international safety requirements.
1-9. This manual contains information, cautions,
and warnings which must be followed by operating
and service personnel to ensure safe operation and to
retain the instrument in safe condition.
1-10. DESCRIPTION
1-11. The Hewlett-Packard Models 5384A and 5385A
are frequency counters that make frequency and
period measurements. The HP 5384A has a frequency
range of 10 Hz to 225 MHz, and the HP 5385A has a
frequency range of 10Hz to 1000 MHz. Both counters
are microcomputer based instruments with a data bus
port for remote operation through either HP-IL or
HP-IB.
1-12. Both counters have "A" and "B" input chan-
nels with BNC type connectors.
1-13. Above the "A" and "B" input connectors is a
dual purpose control that allows you to either set the
trigger level of Channel A or adjust the input attenu-
ation of Channel B.
1-14. A 100 kHz low pass filter can be toggled in or
out of the Channel A signal path on either counter.
1-15. Measurement display and mode annunciators
are shown on a 12-character alphanumeric liquid
crystal display (LCD). Frequency and period measure-
ments are displayed in engineering format, with three
alpha characters used to designate units, e.g., MHz.
The display will also give you brief messages and
diagnostic prompts.
1-16. The HP 5384A and HP 5385A are designed so
you may either rack mount or stack them.
1-17. A 10 MHz reference oscillator output is in-
cluded in both counters. The connector for the 10
MHz output may also be used as an external10 MHz
reference oscillator input connection.
1-18. Option 001 is a temperature compensated
crystal oscillator (TCXO). The TCXO is an option in the
HP 5384A and standard in the HP 5385A.
1-19. A jack for connecting external de power is pro-
vided on the rear panel and Option 005 battery pack
can be installed to provide mobility.
1-20. Option 003 is the Hewlett-Packard Interface
Loop (HP-IL) for remote control of the counters by
battery operated controllers such as the HP41C/CV
hand held controller.
1-21. Option 004 is an ovenized oscillator that
provides a high stability time base giving substan-
tially higher accuracy over variations in time and
temperature.
1-22. Option 005 is a battery pack that provides
portable operation of the HP 5384A or HP 5385A.
1-23.
HP-IB is the Hewlett-Packard Interface Bus for
remote control of the counters by computers and
controllers. It is a standard feature in the instrument.
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