When specifying a range for a voltage or current measurement, you can select
or Auto once
to measure a signal
when you do not know which range to select. The digital multimeter (DMM) takes a series
of measurements and adjusts the range until the measurement falls within the smallest
range appropriate for that measurement.
- Auto—Takes a reading before each measurement to select
the smallest appropriate range.
- Auto once—The first point measured determines the range
for the reast of the measurements.
For model-specific considerations when using Auto Range, refer to Configuring Auto Range in NI-DMM documentation.