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HP4402.book : chapter2.fm 51 Wed Apr 23 15:29:05 1997
Power Meter Operation
Self Test
HP EPM-442A User’s Guide 2-51
Front Panel Selection of Self Tests
Press , , , to access a test menu which
consists of the following tests:
• Instrument Self Test
• Confidence Check
• Individual, which accesses a menu which consists of the following
tests:
■ ROM checksum
■ RAM
■ Battery
■ Measurement Assemblies
■ Calibrator
■ Keyboard
■ Display, which accesses a menu which consists of the following
tests:
◆ Display Assembly
◆ Display RAM
◆ Bitmap Displays
Each of these tests can be run individually. Information on the instrument
self test and confidence check are described on page 2-52. Refer to “Test
Descriptions”, on page 2-54 if you require a description of the other tests.
When an individual test is selected, the message “Testing...” appears
next to the name of the test. When the test is complete, the message
“Testing...” is replaced by either the message “Passed” or “Failed”.
This pass/fail indication excludes the keyboard test and the bitmap
display test, both of which rely on your interaction to detect a failure.
When the individual test is complete, the result is displayed until is
selected. If the self test failed, information about the failure is displayed
on the screen.
System
Inputs
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Service Self Test
Done