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NI 4070/4072 Calibration Procedure
22
ni.com
32. Reset the calibrator for safety reasons.
You have completed verifying the AC voltage of the NI 4070/4072. Select
one of the following options:
•
If you want to continue verifying other modes, go to the
section.
•
If you do
not
want to verify other modes
and
you are performing a
post-adjustment
verification, go to the
section.
•
If you do
not
want to verify any additional modes
and
you are
performing a
pre-adjustment
verification, call
niDMM_close
to close
the session.
Verifying 4-Wire Resistance
To verify the 4-wire resistance of the NI 4070/4072, complete the
following steps:
1.
Reset the calibrator.
2.
Fasten the connectors on one end of each Fluke 5440 cable to the
appropriate banana plug connectors on the NI 4070/4072. Fasten the
connectors on the other end of each Fluke 5440 cable to the appropriate
calibrator binding posts. Figure 2 shows the Fluke 5440 cables. Table 8
lists the cable connections.
5
219 V
100 kHz
NIDMM_VAL_AC_VOLTS
300
300e–6
219 V
100 kHz
NIDMM_VAL_AC_VOLTS_DCCOUPLED
300
300e–6
6
70 V
300 kHz
NIDMM_VAL_AC_VOLTS
300
300e–6
70 V
300 kHz
NIDMM_VAL_AC_VOLTS_DCCOUPLED
300
300e–6
Table 7.
niDMM_ConfigureMeasurement Parameters (Continued)
Iteration
Calibrator Output
niDMM_ConfigureMeasurement Parameters
Amplitude
Frequency
Function
Range
Resolution