SCXI-1102/B/C Calibration Procedure
8
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Complete the following steps to verify the accuracy of each
SCXI-1102/B/C analog input channel:
1.
Use the DAQmx Self Calibrate VI to verify the DAQ device. This VI
measures the onboard reference voltage of the DAQ device and adjusts
the self-calibration constants to account for any errors caused by
short-term fluctuations in the operating environment.
Note
Throughout the verification procedure, refer to the function call parameters for the
LabVIEW input values.
2.
Connect the calibrator output to pins AI– and AI+ for all channels.
Refer to the
SCXI-1300/1301 Terminal Block Installation Guide
for
connection instructions. If you are not using the recommended
SCXI-1300, refer to Table 8 for the front signal pin assignments of the
SCXI-1102/B/C. If the calibration signal source is floating, connect
AI – to the SCXI chassis ground using the ground lug available on the
SCXI terminal block.
3.
Set the calibrator voltage to the desired test point indicated in
Tables 6 or 7.
4.
Create a task using
DAQmxCreateTask
.
LabVIEW Block Diagram
NI-DAQmx Function Call
Call
DAQmxSelfCal
with the
following parameter:
Device_Name
:
"Dev1"
LabVIEW Block Diagram
NI-DAQmx Function Call
LabVIEW does not require
this step.
Call
DAQmxCreateTask
with the
following parameters:
taskName
:
"
AIVerificationTask
"
taskHandle
:
&taskHandle
