Adjustments; Zero Adjustment; Gain Adjustments - Agilent Technologies 34450A Service Manual

Adjustments

After each adjustment finishes successfully, the display briefly shows PASS at the status
N O T E
box. If the calibration fails, the multimeter beeps, the display shows FAIL at the status box.
In the event of a calibration failure, correct the problem and repeat the procedure.

Zero adjustment

Gain adjustments

34450A Service Guide
You will need a test input cable and connectors set, and a shorting plug
to adjust the instrument (see
Zero adjustments is incorporated in gain adjustments procedure for
selected function.
The instrument calculates and stores gain corrections for each input
value. The gain constant is computed from the calibration value entered
for the calibration command and from measurements made automatically
during the adjustment procedure.
Most measuring functions and ranges have gain adjustment procedures.
Adjustments for each function should be performed only in the order
shown.
Gain adjustment considerations
• The zero adjustment procedure must have been recently performed
prior to beginning any gain adjustment procedures.
• Be sure to allow the instrument to warm up and stabilize for four
hours before performing the adjustments.
• Consider the thermal effects as you are connecting test leads to the
calibrator and multimeter. It is recommended to wait one minute
before starting the calibration after connecting the test leads.
Performance Tests and Calibration
"Input connections"

Adjustments

on page 6).
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