Calibration Procedures 1
Keysight U3606B Service Guide 75
Adjustments Procedures
You will need a test input cable and connectors set, and a shorting plug to adjust
the instrument (see “Input and Output Connections” on page 26).
Zero offset adjustment
Each time you perform a zero offset adjustment, the instrument stores a new set
of offset correction constants for measurement functions and ranges. The
instrument will sequence through all required functions and ranges automatically
and store new zero offset calibration constants.
Zero offset adjustment procedure
Be sure to allow the instrument to warm up and stabilize for 120 minutes before
performing the adjustments. Follow the steps outlined below. Review the
“Test
Considerations”
on page 25 before beginning this test.
1 Unsecure the instrument to enter the Adjustment mode. Connect the shorting
plug between the V (red) and LO (black) front panel input terminals. Leave the
current input I (red) open.
After each adjustment finishes successfully, the primary display briefly shows
“PASS”. If the calibration fails, the instrument beeps, the primary display shows
“FAil”, and an error number is shown in the upper secondary display. Calibration
error messages are described on page 102. In the event of a calibration failure,
correct the problem and repeat the procedure.
Never turn off the instrument during zero offset adjustment. This may cause ALL
calibration memory to be lost.
To minimize thermal effects, wait at least 1 minute after connecting the shorting
plug before executing the zero offset adjustment.
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