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© National Instruments Corporation 21 NI 4070/4072 Calibration Procedure
26. Call niDMM_ConfigureMeasurement with the following
parameters:
• Function =
NIDMM_VAL_AC_VOLTS_DCCOUPLED
• Range = 300
• Resolution = 300e–6
27. Call niDMM_Read. The DMM must be in the 300 V range before you
apply the voltage.
28. Output 219 V at 30 Hz on the calibrator.
29. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 16.
30. Refer to Table 6 for the appropriate calibrator outputs and parameter
values as you complete the following steps:
a. On the calibrator, output the value listed in the Calibrator Output
column in Table 6 for the current iteration.
b. Call
niDMM_ConfigureMeasurement with Mode set to
NIDMM_VAL_AC_VOLTS and the remaining parameters as shown
in Table 6 for the current iteration.
c. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 16.
d. Call
niDMM_ConfigureMeasurement again, changing Mode to
NIDMM_VAL_AC_VOLTS_DCCOUPLED.
e. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 16.
Table 6. niDMM_ConfigureMeasurement Parameters
Iteration
Calibrator Output niDMM_ConfigureMeasurement Parameters
Amplitude Frequency Function Range Resolution
1 219 V 50 Hz NIDMM_VAL_AC_VOLTS 300 300e–6
219 V 50 Hz NIDMM_VAL_AC_VOLTS_DCCOUPLED 300 300e–6
2 219 V 1kHz NIDMM_VAL_AC_VOLTS 300 300e–6
219 V 1kHz NIDMM_VAL_AC_VOLTS_DCCOUPLED 300 300e–6
3 219 V 20 kHz NIDMM_VAL_AC_VOLTS 300 300e–6
219 V 20 kHz NIDMM_VAL_AC_VOLTS_DCCOUPLED 300 300e–6
4 219 V 50 kHz NIDMM_VAL_AC_VOLTS 300 300e–6
219 V 50 kHz NIDMM_VAL_AC_VOLTS_DCCOUPLED 300 300e–6
5 70 V 300 kHz NIDMM_VAL_AC_VOLTS 300 300e–6
70 V 300 kHz NIDMM_VAL_AC_VOLTS_DCCOUPLED 300 300e–6