Null Measurement
Keysight M9182A/M9183A Calibration and Verification Procedure
17
Null Measurement
For full accuracy, a null measurement must be performed for the key functions:
DC voltage, DC current, and resistance verification measurements. This is done by
going to the lowest (most sensitive range) on DCV and OHMS functions and
providing a copper short on the input terminals. For the DCI function, the input
terminals should be left with no connection.
1
Set the Soft Front Panel to continuous trigger by clicking the Continuous
button.
2
Set the Function and Range.
3
Press Null.
The next reading taken by the DMM will become the null value. All subsequent
measurements taken on the selected function will have the null value subtracted
from the reading.
