6.
Adjust the current gain with each configuration in the following table:
a)
Commit the device to the specified range.
b)
Configure the calibrator to the specified DC output current and allow it to settle.
c)
Call the niDMM Cal Adjust Gain VI or
niDMM_CalAdjustGain
function with
the specified parameters.
d)
Set the calibrator to
Standby
.
DMM Settings
Calibrator Output
Expected Value
Function
Range
Input Resistance
DC Current
20 mA
N/A
20 mA
20 mA
-20 mA
-20 mA
200 mA
N/A
200 mA
200 mA
-200 mA
-200 mA
1 A
N/A
1 A
1 A
-1 A
-1 A
7.
Self-calibrate the PXIe-4080/4082.
You have completed adjusting the current modes of the PXIe-4080/4082. To continue
adjusting other modes, proceed to the
Adjusting Capacitance and Inductance
section.
If you are finished adjusting modes, proceed to the
Completing the Adjustment Procedures
section to commit the calibration constants.
Adjusting Capacitance and Inductance
Note
If you do not use the capacitance or inductance modes for any measurements,
or the accuracy of these modes is irrelevant, you can skip this section.
Caution
It is necessary to adjust DC voltage and resistance before running these
adjustment steps. During this procedure, be sure to keep hands and any other moving
objects away from the fixture after calling every function.
Complete the following steps to adjust the capacitance and inductance of the PXIe-4082.
1.
Disconnect all inputs of the PXIe-4082.
2.
Call the niDMM Cal Adjust LC VI or the
niDMM_CalAdjustLC
function with
Type
set to
NIDMM_EXTCAL_LC_OPEN
.
3.
Plug in the shorting bar across the HI and LO terminals on the PXIe-4082.
4.
Call the niDMM Cal Adjust LC VI or the
niDMM_CalAdjustLC
function with
Type
set to
NIDMM_EXTCAL_LC_SHORT
.
5.
Remove the shorting bar from the PXIe-4082.
26
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PXIe-4080/4082 Calibration Procedure