To Make Null (Relative) Measurements Each null measurement, also called relative, is the difference between a
stored null value and the input signal.
Result = reading – null value
•You can make null measurements with any function exce pt
continuity, diode, or ratio. The null operation is local to the selected
function; when you change functions, null is disabled .
•To null the test lead resis tance for more accurate two-wire ohms
measurements, short the ends of the test leads together and then
press Null .
•The first reading taken after you press Null is stored as the null
value in the Null Register. Any previously stored value is
replaced with the new value.
•After enabling null, you can edit the stored null value by
pressing Shift > (Menu Recall). This takes you to the
“NULL VALUE” command in the MATH MENU (only if null is
enabled). Go down to the “parameter” level, and then edit the
displayed value.
•The null register is cleared when you change functions, tu rn nul l off,
turn off the power, or perform a remote interface reset.
Enables null operation;
Press again to disable. Math annunciator is on when
null operation is enabled.
To read / edit the null value, use the MATH menu.
Chapter 2 Front-Panel Menu Operation
To Make Null (Relative) Measurements
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