9.
Adjust the current gain with each configuration in the following table:
a)
Commit the PXIe-4081 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
10 mA
N/A
10 mA
10 mA
-10 mA
-10 mA
100 mA
N/A
100 mA
100 mA
-100 mA
-100 mA
1 A
N/A
0.5 A
0.5 A
-0.5 A
-0.5 A
3 A
N/A
0.5 A
0.5 A
-0.5 A
-0.5 A
10. Self-calibrate the PXIe-4081.
You have completed adjusting the current modes of the PXIe-4081. Proceed to the
Completing
the Adjustment Procedures
section.
Completing the Adjustment Procedures
To complete the adjustment procedure for the PXIe-4081 and close the session, call the
niDMM Close Ext Cal VI or the
niDMM_CloseExtCal
function with the following
parameter:
•
Action =
NIDMM_EXTCAL_ACTION_SAVE
if you want to save the new calibration
coefficients to the device. Otherwise,
•
Action =
NIDMM_EXTCAL_ACTION_ABORT
if you want to restore the original calibration
coefficients to the device.
Reverification
Repeat the
Verification
section to determine the as-left status of the PXIe-4081.
Note
If any test fails reverification after performing an adjustment, verify that you
have met the test conditions before returning your PXIe-4081 to NI. Refer to the
Worldwide Support and Services
section for information about support resources or
service requests.
PXIe-4081 Calibration Procedure
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© National Instruments
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