Technical data

Performance Verification Tests

You can perform three different levels of performance verification tests:

• Self-Test A series of internal verification tests that give a high

confidence that the multimeter is operational.

• Quick Verification A combination of the internal self-tests and

selected verification tests.

• Performance Verification Tests An extensive set of tests that are

recommended as an acceptance test when you first receive the

multimeter or after performing adjustments.

Self-Test

A brief power-on self-test occurs automatically whenever you turn on

the multimeter. This limited test assures that the multimeter is capable

of operation.

To perform a complete self-test, including over 25 tests, hold down

the

Shift key as you press the Power switch to turn on the multimeter;

hold down the key for more than 5 seconds (a complete description of

these tests can be found in chapter 6.) The multimeter meter will

automatically perform the complete self-test procedure when you

release the key. The self-test will complete in approximately 20 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. For further information, see chapter 3 in the

Agilent 34401A 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 repair is required, see chapter 6, “Service,” for further details.

• If all tests pass, you can have a high confidence (90%) that the

multimeter is operational.

Chapter 4 Calibration Procedures

Performance Verification Tests