PXIe-4468 Calibration Procedure
36
ni.com/services
2.
Configure the function generator to output a sine wave of 6.3 V
rms
(8.9
V
pk
) signal, no offset, at a frequency of 90.000 kHz.
3.
Call DAQmxAdjustDSADeviceTimebaseCal (DAQmx Adjust DSA Device
Timebase Calibration VI) with the following parameters to perform the
timebase adjustment:
calHandle:
myCalHandle
referenceFrequency:
90000.0
Committal Procedure
1.
Call DAQmxCloseExtCal (DAQmx Close External Calibration VI) with the
following parameters to finish the calibration adjustment:
calHandle
: myCalHandle
action
: DAQmx_Val_Action_Commit or DAQmx_Val_Action_Cancel
Use the action
cancel
if there has been any error during the calibration
or if you do not want to save the new calibration constants in the device
EEPROM.
Use the action
commit
if you want to save the new calibration constants
in the device onboard storage.
Perform Reverification
Perform all tests in the Verification section after completing Adjustment. This
verification compares the As-Left limits with measurement data collected
after the DUT adjustment. The As-Left limits may be tighter than the As-
Found limits.