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National Instruments Corporation
61
NI 4065 Calibration Procedure
12. Call the niDMM Cal Adjust Offset VI.
13. Reset the calibrator.
Adjusting 4-Wire Resistance
To adjust 4-wire resistance for the NI 4065, complete the following steps:
1.
Fasten the connectors on one end of the Fluke 5440 cable to the
NI 4065
HI SENSE
and
LO SENSE
banana plug connectors. Fasten
the connectors on the other end of the cable to the
HI SENSE
and
LO SENSE
calibrator binding posts, respectively. Figure 3 shows the
correct connections for the NI PXI/PCI/PCIe-4065 and Figure 4 shows
the correct connections for the NI USB-4065. Table 2 lists the cable
connections.Table 7 lists the cable connections.
2.
Wait two minutes for the thermal EMF to stabilize.
3.
Call the niDMM Config Measurement VI. The niDMM Config
Measurement VI is polymorphic. To change the selected instance of
this polymorphic VI, right-click the VI and choose
Select Type
followed by
Resolution in Digits
.
LabVIEW Block Diagram
C/C++ Function Call
Call
niDMM_CalAdjustOffset
with
the following parameters:
Instrument_Handle
:
Cal Session
Mode
:
NIDMM_VAL_DC_VOLTS
Range
:
300
Input_Resistance
:
NIDMM_VAL_10_MEGAOHM
LabVIEW Block Diagram
C/C++ Function Call
Call
niDMM_ConfigureMeasurement
Digits
with the following parameters:
Instrument_Handle
:
Cal Session
Resolution_Digits
:
6.5
Measurement_Function
:
NIDMM_VAL_4_WIRE_RES
Range
:
1 M
