Performance Tests and Calibration 4
34405A User’s and Service Guide 103
8 Repeat steps 3 through 7 for each gain adjustment point
shown in the table.
9 Verify the AC Current Gain adjustments using the “AC
Current Verification Test” on page 83.
Ohms Gain Adjustment Procedure
Review the “Test Considerations” on page 71 and “Gain
Adjustment Considerations” on page 95 sections before
beginning this procedure.
This procedure adjusts the gain for the two- wire ohms
function. The gain for the 100 M
Ω range is derived from the
10 M
Ω range and does not have a separate adjustment point.
1 Press to enter the Ohms Gain Adjustment Mode.
2 The primary display will show the calibration value and
the secondary display will show the first reference value
of the Cal Item (Short).
Ta ble 1 8 AC Current Gain Adjustment
Input
Current Frequency Function
Frequency as 1kHz
Cal Item
1 mA 1kHz AC Current 1 mA
10 mA 1kHz 10 mA
100 mA 1kHZ 100 mA
1000 mA 1kHz 1000 mA
Caution: Connect calibrator to multimeter’s 12A and LO
terminals before applying the following 1A and 10A
1 A 1kHz 1 A
10 A 1kHz 10 A
34405A users guide.book Page 103 Saturday, September 2, 2006 3:38 PM
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