Step 5: Press Range to select a range for the measurement. You can also use the [+], [-], and [Range]
keys on the front panel to select the range. (Auto (autorange) automatically selects the range for the meas-
urement based on the input. Autoranging is convenient, but it results in slower measurements than using
a manual range. Autoranging goes up a range at 120% of the present range, and down a range below 10%
of the present range. Press More to switch between the two pages of settings.
Step 6: Auto Zero: Autozero provides the most accurate measurements, but requires additional time to
perform the zero measurement.With autozero enabled (On), the DMM internally measures the offset fol-
lowing each measurement. It then subtracts that measurement from the preceding reading. This prevents
offset voltages present on the DMM’s input circuitry from affecting measurement accuracy. With autozero
disabled (Off), the DMM measures the offset once and subtracts the offset from all subsequent meas-
urements. The DMM takes a new offset measurement each time you change the function, range, or integ-
ration time. ( There is no autozero setting for 4-wire measurements.)
Keysight Truevolt Series Operating and Service Guide
63
Features and Functions
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