Keysight U3606B, Service Manual

Page: 77 / 123

Calibration Procedures 1
Keysight U3606B Service Guide 77
Gain adjustment considerations
– The zero offset 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 120 minutes
before performing the adjustments.
– Consider the thermal effects as you are connecting test leads to the calibrator
and instrument. It is recommended to wait 1 minute before starting the
calibration after connecting the test leads.
Valid gain adjustment input values
Gain adjustment can be accomplished using the following input values.
CAUTION
Never turn off the instrument during a gain adjustment. This may cause the
calibration memory for the present function to be lost.
Table 1-23 Valid gain adjustment input values
Function Range Valid amplitude input values Page
DC voltage
– 100 mV
– 1 V
– –1 V
– 10 V
– 100 V
– 1000 V
0.9 to 1.1
×
full scale page 78
AC voltage
(frequency as
1 kHz)
– 10 mV
– 100 mV
– 1 V
– 10 V
– 100 V
– 750 V
0.9 to 1.1
×
full scale page 80
Frequency Autorange/1 kHz
Input ≥ 100 mV
rms
, 900 Hz to 1100 Hz
page 82