NI PXIe-4353 Calibration Procedure
12
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13. Perform an external calibration adjustment by selecting the DAQmx Adjust 4353 Calibration VI,
from the DAQmx Adjust SC Express Calibration polymorphic VI. Set the physical channels to
Dev1/_cjtemp0
. The reference value parameter is the actual output of the calibrator, 32.4 k
Ω
.
14. Set the calibrator resistance to 0
Ω
and wait for the calibrator output to settle.
15. Perform an external calibration adjustment by selecting the DAQmx Adjust 4353 Calibration VI,
from the DAQmx Adjust SC Express Calibration polymorphic VI. Set the physical channels
to
Dev1/_cjtemp0
. The reference value parameter is the actual output of the calibrator, 0
Ω
.
16. Disable the calibrator output.
17. Save the adjustment constants to the EEPROM, using the DAQmx Close External Calibration VI
and set the action to Commit. This VI also saves the date, time, and temperature of the adjustment
to the onboard memory.
Note
If an error occurs during adjustment, no constants will be written to the EEPROM.
18. Disconnect the calibrator from the module.
Note
Partial adjustment of only the TC channels is possible by omitting steps 10 through 16. Partial
adjustment of only the CJC channels is possible by omitting steps 3 through 9.
LabVIEW Block Diagram
NI-DAQmx Function Call
Call
DAQmxAdjust4353Cal
with the following parameters:
calHandle
:
calHandle
channelNames
:
Dev1/_cjtemp0
refVal
: actual output of the calibrator
LabVIEW Block Diagram
NI-DAQmx Function Call
Call
DAQmxAdjust4353Cal
with the following parameters:
calHandle
:
calHandle
channelNames
:
Dev1/_cjtemp0
refVal
: actual output of the calibrator
LabVIEW Block Diagram
NI-DAQmx Function Call
Call
DAQmxCloseExtCal
with the following parameters:
calHandle
:
calHandle
action
:
DAQmx_Val_Action_Commit
