Features and Functions 4
Keysight 34970A/34972A User’s Guide 173
Self-test
A power-on self-test occurs automatically when you turn on the instrument. This
limited test assures you that the instrument and all installed plug-in modules are
operational. This self-test does not perform the extensive set of tests that are
included as part of the complete self-test described below.
A complete self-test runs a series of tests and takes approximately 20 seconds to
execute. If all tests pass, you can have a high confidence that the instrument and
all installed plug-in modules are operational.
– If the complete self-test is successful, PASS is displayed on the front panel. If
the self-test fails, FAIL is displayed and the ERROR annunciator turns on. See
the 34970A/34972A Service Guide for instructions on returning the instrument
to Keysight for service.
– Front-Panel Operation: To perform the complete front-panel self-test, hold
down
as you turn on the instrument and hold down the key until you
hear a long beep. The self-test will begin when you release the key following
the beep.
– Remote Interface Operation:
*TST?
Returns “0” if the self-test is successful or “1” if it fails.
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