Performance Verification Tests; Self-Test - Keysight Technologies 34420A Service Manual

Performance Verification Tests

The performance verification tests use the meter's specifications listed in
datasheet.
You can perform four different levels of performance verification tests:
– Sel f-Test A series of internal verification tests that give a high confidence that
– Quick Verification A combination of the internal self-tests and selected
– Performance Verification Tests An extensive set of tests that are
– Optional Verification Tests Tests not performed with every calibration.

Self-Test

A brief power-on self-test occurs automatically whenever you turn on the meter.
This limited test assures that the meter is capable of operation.
To perform a complete self-test hold down the
switch to turn on the meter; hold down the key for more than 5 seconds (a
complete description of these tests can be found in chapter 6). The meter will
automatically perform the complete self-test procedure when you release the key.
The self-test will complete in approximately 10 seconds.
You can perform many tests individually (or all tests at once) using the TEST
command in the SYS MENU. You can also perform a self-test from the remote
interface. See Chapter 4 in the Keysight 34420A User's Guide.
– If the 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. If
– If all tests pass, you have a high confidence (90%) that the meter is
Keysight 34420A Service Guide
the meter is operational.
verification tests.
recommended as an acceptance test when you first receive the meter or aft.er
performing adjustments.
Perform these tests to verify additional specifications or functions of the meter.
repair is required, see
operational.
Chapter 5, "Service"
Calibration Procedures
key as you press the Power
Shift
for further details.
3
79