Keysight U1253B Guía Del Usuario Y Servicios página 91

3 Functions and Features
Null (Relative)
The Null function subtracts a stored value from the present measurement and
displays the difference between the two.
1 Press
Null can be set for both auto and manual range settings, but not in the case of
NOTE
an overload.
2 Press
3 Press
– In resistance measurement mode, the multimeter will read a non-zero value
NOTE
– In DC voltage measurement mode, thermal effects will influence the
90
to store the displayed reading as the reference value to be
subtracted from subsequent measurements and to set the display to zero.
is displayed.
to view the stored reference value.
reference value are displayed for 3 seconds.
within the 3 seconds when
value is displayed to exit this mode.
even 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.
accuracy. Short the test leads and press
stable to zero-adjust the display.
and the stored reference
once the displayed value is
Keysight U1253B User's and Service Guide
and the stored