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NI PXIe-4339 Calibration Procedure
Adjustment
The following performance adjustment procedure describes
the sequence of operation required
to adjust the NI PXIe-4339.
Adjustment Procedure
Complete the following steps to adjust the accuracy of the NI PXIe-4339.
1.
Set the calibrator to standby mode (STBY).
2.
Connect the calibrator to the TB-4339/B/C as shown in Figure 2.
•
If the calibrator has a guard connection, leave it disconnected.
•
If the calibrator output is floating, you must connect the negative output to AIGND.
3.
Call the DAQmx Initialize External Calibration function with the following parameters:
Device In
:
Dev1
Password
:
NI
4.
Call the 4339 instance of the DAQmx Setup SC Express Calibration function with the
following parameters:
calhandle in
: calhandle output from DAQmx Initialize External Calibration
rangeMax
: Appropriate
Range Max
starting with the value in the first row of Table 16
rangeMin
: Appropriate
Range Min
starting with the value in the first row of Table 16
physical channels
:
dev1/ai0:7
cal mode
:
Voltage
Table 16.
Voltage Mode
Range (V)
Calibrator Output (V)
Max
Min
0.1
-0.1
0.09
0
-0.09
0.2
-0.2
0.18
0
-0.18
0.5
-0.5
0.45
0
-0.45
