Test 3: Ohms Gain Verification Test
Keysight M9181A Calibration and Verification Procedure 21
Test 3: Ohms Gain Verification Test
1 Make sure you have read “Test Considerations” on page 16.
2 Set the calibrator to the 4-wire ohms function.
3 Set the M9181A DMM to 4-wire ohms.
4 Connect the calibrator to the input terminals of the DMM, using all four wires
as shown below.
5 Perform a null measurement with the calibrator programmed to 0 Ω and the
DMM on the lowest range. Perform the 4-wire ohms measurements below on
the M9181A DMM “nulled” to this measurement.
6 Select each range in the order shown below. Using the calibrator, provide the
resistance value indicated. Compare measurement results to the appropriate
test limits shown in the table. Be certain to allow for appropriate source
settling.
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