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NI 4070/4072 Calibration Procedure 34 ni.com
14. Call niDMM_ConfigureMeasurement with the following
parameters:
• Function =
NIDMM_VAL_AC_CURRENT
• Range = 1
• Resolution = 1e–6
15. Call niDMM_Read. Verify that this measurement falls between the
limits listed in Table 20.
16. Output 1 A at 1 kHz on the calibrator.
17. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 20.
You have completed verifying the AC current of the NI 4070/4072. Select
one of the following options:
• If you want to continue verifying other modes, go to the Verifying
Frequency section.
• If you do not want to verify other modes and you are performing a
post-adjustment verification, go to the Completing the Adjustment
Procedures 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 Frequency
Notes The frequency of the NI 4070/4072 is not user adjustable. If this verification
procedure indicates that the frequency is out of specification, return the NI 4070/4072
to NI for repair.
This verification procedure is optional and requires additional test
equipment. If you do not want to verify frequency, select one of the
following options:
• If you are calibrating an NI 4072 and want to continue verifying other
modes, go to the Verifying Capacitance and Inductance (NI 4072
Only) section.
• If you do not want to verify other modes and are performing a
post-adjustment verification, go to the Completing the Adjustment
Procedures 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.