National Instruments USB-443 Series Calibration Procedure page 17

10. Perform AO calibration using the DAQmx Adjust DSA AO Calibration VI as shown below.
LabVIEW Block Diagram
11. Finish the AO calibration with the DAQmx Close External Calibration VI as shown below. Use the
action
cancel
the new AO calibration constants in the device EEPROM. Use the action
AO calibration constants in the device EEPROM.
LabVIEW Block Diagram
The analog output of the device is now calibrated with respect to your external equipment. After
calibrating the device, verify the analog output operation by repeating the
Verification section.
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if there has been any error during the AO calibration or if you do not want to save
NI-DAQmx Function Call
Call
DAQmxAdjustDSAAOCal
parameters:
calhandle:
myCalHandle
channel: 0
requestedHighVoltage: 2.0
actualHighVoltage: (value from step 7)
requestedLowVoltage: –2.0
actualLowVoltage: (value from step 9)
gainSetting: 0.0
NI-DAQmx Function Call
Call
DAQmxCloseExtCal
parameters:
calHandle:
myCalHandle
action:
DAQmx_Val_Action_Commit
DAQmx_Val_Action_Cancel
17
with the following
to save the new
commit
with the following
or
Analog Output Performance
NI USB-443x Calibration Procedure