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NI 4071 7½-Digit FlexDMM Calibration Procedure
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© National Instruments
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129
To adjust the current modes of the NI 4071, complete the following steps:
1.
Reset the calibrator
2.
Connect the NI 4071 and the Fluke 5720A calibrator using the Fluke 5440 cable, as shown
in Figure 6. Table 15 lists the cable connections.
3.
Wait two minutes for the thermal EMF to stabilize.
4.
Call the niDMM Config Measurement VI and select the
Resolution in Digits
instance.
5.
Call the niDMM Read VI. Configure the NI 4071 for a current mode before applying
current.
6.
Generate 1
A on the calibrator with the current output set to
NORM
.
LabVIEW Block Diagram
C/C++ Function Call
Call
niDMM_ConfigureMeasurement
Digits
with the following
parameters:
Instrument_Handle
:
The instrument
handle from
niDMM_init
Resolution_Digits
:
6
.
5
Measurement_Function
:
NIDMM_VAL_DC_CURRENT
Range
:
1e–6
LabVIEW Block Diagram
C/C++ Function Call
Call
niDMM_read
with the
following parameters:
Instrument_Handle
:
The instrument
handle from
niDMM_init
Reading
: The measurement returned
by the function. Configure the
NI 4071 for a current mode before
applying current.
Maximum_Time
:
–1