National Instruments RM-26999, Процедура калибровки

Страница: 22 / 24

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
in Table 4.
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
Table 5.
19. Enable the calibrator to source the high voltage value, as defined in
Table 5.
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.