Keysight Technologies N432A, Руководство пользователя

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Maintenance 3
N432A User’s Guide 101
Remote testing
To perform a remote instrument self- test, the IEEE- 488.2 common
command
*TST?
is used. This command runs a full self- test and returns
one of the following codes:
• 0 – no tests failed
• 1 – one or more tests failed
The communications assembly is tested implicitly, in that the command
will not be accepted or return a result unless the remote interface is
functioning correctly.
Refer to “Test descriptions” on page 101 if you require a description of
each individual test.
When the
*TST?
command is executed, the screen is cleared. As each test
takes place, the name of the test is listed on the screen. While a test is
running, the message
Testing... appears beside the name of the test. As
each stage of the test completes, the message Testing... is replaced by
either Passed or Failed .
Test descriptions
This section specifies what is actually checked by each of the tests. Some
of the tests may only be applicable to one method of invocation (for
example, from the front panel). If this is the case, it is specified in the
test description. Most of the tests have an associated error message which
is added to the error queue if the test fails. The exception to this is the
bitmap display test. Refer to
“Error Messages” on page 103 for more
details.
Test Point Voltages
An array of tests on various DC voltages inside the N432A.
Calibrator
The reference calibrator is turned on (indicated by the POWER REF LED)
and measured internally. A pass or fail result is returned.