NI 9211 Calibration Procedure
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© National Instruments Corporation
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5
6.
Compare the average sample for each channel to the test limits in Table 4.
Note
The test limits listed in Table 4 are derived using the values in Table 6.
7.
Set the calibrator to Standby mode (STBY).
8.
Repeat steps 3 through 7 for each test point in Table 4.
9.
Disconnect the calibrator from the NI 9211.
Adjustment
The following performance adjustment procedure describes the sequence of operation required
to adjust the NI 9211.
Accuracy Adjustment
Complete the following procedure to adjust the accuracy
performance of the NI 9211.
1.
Set the calibrator to Standby mode (STBY).
2.
Connect the NI 9211 to the calibrator as shown in Figure 1.
3.
Set the calibrator output to 0.07 V.
4.
Set the calibrator to Operate mode (OPR).
5.
Adjust the NI 9211.
a.
Open a calibration session on the NI 9211.
b.
Input the external temperature in degrees Celsius.
c.
Call and configure the NI 9211 adjustment function according to Table 5.
d.
Close the calibration session.
6.
Set the calibrator to Standby mode (STBY).
7.
Disconnect the calibrator from the NI 9211.
Table 4.
NI 9211 Test Limits
Test Point
1-Year Limits
Location
Value (V)
Lower Limit (V)
Upper Limit (V)
Max
0.075000
0.074959
0.075041
Mid
0
-0.000013
0.000013
Min
-0.075000
-0.075041
-0.074959
Table 5.
Adjustment Configuration
Physical Channels
Reference Value
cDAQMod8/ai0:3
0.07
