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National Instruments Corporation
57
NI PXI-4070 Calibration Procedure
23. Call
niDMM_CalAdjustGain
with the following parameters:
•
Mode
=
NIDMM_VAL_DC_CURRENT
•
Range
=
1
•
Input Resistance
=
NIDMM_VAL_RESISTANCE_NA
•
Expected Value
=
–1
24. Output 0 A on the calibrator with the current output set to
AUX
.
25. Call
niDMM_CalAdjustOffset
with the following parameters:
•
Mode
=
NIDMM_VAL_DC_CURRENT
•
Range
=
1
•
Input Resistance
=
NIDMM_VAL_RESISTANCE_NA
26. Call
niDMM_CalAdjustOffset
with the following parameters:
•
Mode
=
NIDMM_VAL_AC_CURRENT
•
Range
=
1
•
Input Resistance
=
NIDMM_VAL_RESISTANCE_NA
27. Call
niDMM_CalAdjustMisc
with
Type
set to
NIDMM_EXTCAL_MISCCAL_SECTION
.
You have completed adjusting the current modes of the NI 4070. Select one
of the following options:
•
To verify that the NI 4070 is now operating within its specifications,
go to the
section and complete the appropriate
procedures.
• To finish the calibration and close the session, go to the
Completing the
Adjustment Procedures
section.
Completing the Adjustment Procedures
To complete the adjustment procedure for the NI 4070 and close the
session, call
niDMM_CloseExtCal
with the following parameter:
•
Action
=
NIDMM_EXTCAL_ACTION_SAVE
if the results of the
calibration were satisfactory and you want to save the new calibration
coefficients to the EEPROM.
Otherwise,
•
Action
=
NIDMM_EXTCAL_ACTION_ABORT
if the results of the
calibration were unsatisfactory and you want to restore the original
calibration coefficients to the EEPROM.