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National Instruments Corporation
29
NI 4070/4072 Calibration Procedure
33. Call
niDMM_ConfigureMeasurement
with the following
parameters:
•
Function
=
NIDMM_VAL_2_WIRE_RES
•
Range
=
10e3
•
Resolution
=
0.01
34. Call
niDMM_Read
. This allows the calibrator to properly settle for a
10 k
Ω
compensated measurement at the NI 4070/4072.
35. Call
niDMM_Read
. Verify that the result falls between the tolerances
listed in Table 20.
36. Output 1 k
Ω
on the calibrator with 2-wire compensation and external
sense turned on.
37. Call
niDMM_ConfigureMeasurement
with the following
parameters:
•
Function
=
NIDMM_VAL_2_WIRE_RES
•
Range
=
1e3
•
Resolution
=
1e-3
38. Call
niDMM_Read
. Verify that the result falls between the tolerances
listed in Table 20.
39. Output 100
Ω
on the calibrator with 2-wire compensation and external
sense turned on.
40. Call
niDMM_ConfigureMeasurement
with the following
parameters:
•
Function
=
NIDMM_VAL_2_WIRE_RES
•
Range
=
100
•
Resolution
=
100e-6
41. Call
niDMM_Read
. Verify that the result falls between the tolerances
listed in Table 20.
You have completed verifying the 2-wire resistance 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.