Figure 3-2 Null Operation - Keysight U1271A User Manual

– In resistance measurement, the multimeter will read a non-zero value even
NOTE
– For DC voltage measurements, the thermal effect will influence the accuracy
Figure 3-2
Keysight U1271A/U1272A User's Guide
when the two test leads are in direct contact, because of the resistance of
these leads. Use the null function to zero-adjust the display.
of the measurements. Short the test leads and press
displayed value is stable to zero-adjust the display.
Press to enable the Null function.
Press again to
disable the Null function.
Null operation
Press
Multimeter Features
when the
Display
returns to
normal after
3 seconds
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