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3 Features and Functions
Advanced settings
In DMM Digitize data acquisition mode, only the Auto Zero setting will be available in the Advanced settings.
Press Advanced to configure the advanced settings for the measurement.
Softkey
Auto Zero
Off/ On
OffstComp
Off/ On
Delay
Auto/Time
116
Description
Auto Zero provides the most accurate measurements, but requires additional measurement time to perform
the zero measurement. With auto zero enabled (
each measurement. It then subtracts that measurement from the preceding reading. This prevents offset
voltages present on the instrument's input circuitry from affecting measurement accuracy. With auto zero
disabled (
Off ), the instrument measures the offset once and subtracts the offset from all subsequent
measurements. The instrument takes a new offset measurement each time you change the function, range,
or integration time. (There is no auto zero setting for 4-wire measurements).
Offset compensation removes the effects of small DC voltages in the circuit being measured. The technique
involves taking the difference between two resistance measurements, one with the current source set to the
normal value, and one with the current source set to a lower value.
Selects whether the delay between channels in the scan list will be automatically or manually selected. By
selecting
Auto , instrument will automatically determine the channel delay based on measurement function,
range, integration time, and AC filter setting. By selecting
inserted between the relay closure and the actual measurement on each channel, in addition to any delay
that will implicitly occur due to relay settling time.
On ), the instrument internally measures the offset following
Time , the specified delay (time in seconds) is
Keysight DAQ970A/DAQ973A User's Guide
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