Performance Tests; Equipment Required; Test Record; Performance Verification - HP 4935A Operating And Service Manual

Model 49:GA
4-l. INTRODUCTION
4-2. Tests in this section verify instrument specifications. These tests may be used as part of incoming
inspection and can be done without accessing the instrument's internal circuits. If the instrument fails the
tests, refer to the Service Section.
4-3. EQUIPMENT
4-4.
characteristics may be substituted.
4-5.

TEST RECORD

4-6. Test results may be recorded on the test record located at the end of this section. Results of tests
recorded during incoming inspection can be used for comparison in maintenance, troubleshooting, and
following repairs and/or adjustments.
4-7.

SELF CHECK

4-x. Self check is automatically done each time the instrument is powered up. Some circuits and filters
arc tested in addition to all the front panel leds and seven segment displays.
4-9.
PERFORMANCE
This instrument requires periodic performance verification. Depending on use and operating
environment, the instrument should be checked every six months using the performance tests. Performance
tests should also be made following repair or when internal adjustments are required.
4-l 1, To shorten testing time, the abbreviated Performance Tests may be used. The test results do not
totally confirm that the instrument meets the published specifications. Perform the full test to verify that
instrument's performance completely meets the specifications.
SECTION IV

PERFORMANCE TESTS

REQUIRED
VERIFICATION
Performance Tests