Agilent Technologies 1141A, User'S Manual And Service Manual, Page: 43 / 88

43
Agilent Technologies
3
Adjusting the Probe
Probe Adjustment 45
Step 1. Probe Preparation 45
Step 2. Adjust the HF Gain and HF CMRR 47
Step 3. Adjust the Low Frequency Response and CMRR 49
Step 4. Adjust the High Frequency Compensation 51
Attenuator Adapter Adjustment 54
This chapter provides the adjustment procedures for the 1141A
Differential Probe and 1142A Probe Control and Power Module.
None of the adjustment procedures that follow should be
considered for a routine maintenance plan. The differential probe
and attenuator adapters should be adjusted under conditions
specified at the beginning of the respective procedures.
NOTE
Warm up the instrument for 30 minutes before starting adjustment procedures.
Equipment Required
A complete list of equipment required for the calibration tests and
adjustments is listed in
“Recommended Test Equipment” on page 9.
Equipment required for individual procedures is listed at the
procedure. Any equipment satisfying the critical specifications listed
may be substituted for the recommended model.
The Test Board
The test board is a supplied accessory for use during calibration
tests and adjustments to connect signals to the differential probe
(with or without adapters). A BNC connector connects the test
board to a cable from the signal generator. The board includes a
50
Ω
termination (two 100
Ω
resistors).