Performance Verification Tests Overview; Self -Test - Agilent Technologies 34405A User's And Service Manual

4 Performance Tests and Calibration

Performance Verification Tests Overview

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Use the Performance Verification Tests to verify the measurement
performance of the instrument. The performance verification tests use the
instrument's specifications listed in
You can perform four different levels of performance verification tests:
Self- Test A series of internal verification tests that give a high confidence
that the instrument is operational.
Quick Verification A combination of the internal self- tests and selected
verification test.
Performance Verification Tests An extensive set of tests that are
recommended as an acceptance test when you first receive the instrument
or after performing adjustments.
Optional Verification Tests Tests not performed with every calibration.
Perform these tests to verify additional specifications or functions of the
instrument.

Self -Test

• A brief power- on self- test occurs automatically whenever you turn on
the instrument. This limited test assures that the instrument is capable
of operation.
• During the self- test all display segments and annunciators are lit.
• If the self- test fails, an error is reported on the front panel. You can
also use the SYSTem: ERRor? command query from the remote
interface. If repair is required, contact an Agilent Service Center.
• If all tests pass, you have a high confidence (~90%) that the instrument
is operational.
• You can initiate a more complete self- test by sending the *TST?
command to the instrument. This command returns a "+0" if all the
self- tests pass, or a "+1" if a failure occurred. This command may take
up to 30 seconds to complete. You may need to set an appropriate
interface time- out value.
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Chapter 6, "Specifications".
34405A User's and Service Guide