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RM-26999 Calibration Procedure
© National Instruments Corporation
21
Note
A settling time of 10 seconds accommodates any changes to range,
polarity, and thermal EMF effects that increase the base settling time.
15.
Take the measurement with the DMM.
16.
Call
RM-26999 Adjust DC Offset Calibration.vi
.
a.
Use the low voltage value as the measured voltage signal, as defined
17.
Call
RM-26999 Get AC Calibration Stimulus.vi
.
Repeat 4 times, once for each channel.
Repeat 2 times, once for each signal path.
Repeat 1 time, once for each frequency.
Table 5:
AC Voltage Test Point
Frequency
High Voltage Value
Calibrator
Range
Low Voltage Value
DMM Range
15 kHz
10 V
RMS
22 V
RMS
50 mV
RMS
100 mV
RMS
18.
Configure the DMM to measure the low voltage value, as defined in
19.
Enable the calibrator to source the high voltage value, as defined in
20.
Allow the DMM and calibrator to settle before taking a measurement.
NI recommends a settling time of 10 seconds.
Note
A settling time of 10 seconds accommodates any changes to range,
polarity, and thermal EMF effects that increase the base settling time.
21.
Take the measurement with the DMM.