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NI PXI-4070 Calibration Procedure
32
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23. Call
niDMM_ReadMultiPoint
with the following parameters:
•
Maximum Time
=
NIDMM_VAL_TIME_LIMIT_AUTO
•
Array Size
=
10
Average the results by summing the returned reading array of the
function and dividing by the returned actual number of points.
Store the result as the 100
Ω
range offset.
24. Output 100 M
Ω
on the calibrator with no external sense or 2-wire
compensation.
25. Call
niDMM_ConfigureMeasurement
with the following
parameters:
•
Function
=
NIDMM_VAL_2_WIRE_RES
•
Range
=
100e6
•
Resolution
=
100
26. Call
niDMM_Read
. Subtract the previously stored 100 M
Ω
range offset
from this measurement. Verify that the result falls between the
tolerances listed in Table 14.
27. Output 10 M
Ω
on the calibrator with no external sense or 2-wire
compensation.
28. Call
niDMM_ConfigureMeasurement
with the following
parameters:
•
Function
=
NIDMM_VAL_2_WIRE_RES
•
Range
=
10e6
•
Resolution
=
10
29. Call
niDMM_Read
. Subtract the previously stored 10 M
Ω
range offset
from this measurement. Verify that the result falls between the
tolerances listed in Table 14.
30. Output 1 M
Ω
on the calibrator with no external sense or 2-wire
compensation.
31. Call
niDMM_ConfigureMeasurement
with the following
parameters:
•
Function
=
NIDMM_VAL_2_WIRE_RES
•
Range
=
1e6
•
Resolution
=
1
32. Call
niDMM_Read
. Subtract the previously stored 1 M
Ω
range offset
from this measurement. Verify that the result falls between the
tolerances listed in Table 14.
33. Output 100 k
Ω
on the calibrator with no external sense or 2-wire
compensation.