Agilent Technologies E1401-90493 Before You Start

24 Chapter 1

Calibrating

Before You Start

This brief procedure should be performed before starting the

performance verification tests:

1. Switch the analyzer on and let it warm up for five minutes.

2. If the analyzer is an Agilent E4402B, E4403B, E4404B, E4405B,

E4407B, or E4408B, connect a cable from AMPTD REF OUT to the

50 Ω Input.

3. Press System, Alignments, Align Now, All, and wait for the auto

alignments to finish.

4. Read the remainder of this section before you start any of the tests,

and make a copy of the Performance Verification Test Record

described below in "Recording the test results."

Performance verification test records, for each analyzer, are provided in

the chapter following the tests.

Each test result is identified as a TR Entry in the performance tests

and on the performance verification test record. We recommend that

you make a copy of the performance verification test record, record the

test results on the copy, and keep the copy for your calibration test

record. This record could prove valuable in tracking gradual changes in

test results over long periods of time.

Perform a complete self-alignment at least once per day, or if the

analyzer fails a verification test. To perform a self-alignment, press

System, Alignment, Align Now, All. The instrument must be up to

operating temperature in order for this test to be valid. If the analyzer

continuously fails one or more specifications, complete any remaining

tests and record all test results on a copy of the test record. Then refer

to Chapter 4 , “If You Have a Problem,” for instructions on how to solve

the problem.