NI 9230/9232 Calibration Procedure
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© National Instruments
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5
b.
Configure the AI voltage task timing according to Table 4.
c.
Start the task.
d.
Average the samples acquired for each channel.
e.
Stop and Clear the task.
6.
Compare the average to the limits in Table 5.
Note
The test limits listed in Table 5 are derived using the values in Table 7.
Note
The uncertainty of the calibration standard is not included in these limits.
7.
Set the calibrator to Standby mode (STBY).
8.
Repeat steps 3 through 7 for each test point in Table 5.
9.
Disconnect the calibrator from the device.
Adjustment
The following performance adjustment procedure describe
s
the sequence of operation required
to adjust the NI 9230/9232.
Accuracy Adjustment
Complete the following procedure to adjust the accuracy performance of the NI 9230/9232.
1.
Set the calibrator to Standby mode (STBY).
2.
Connect the NI 9230/9232 to the calibrator as shown in Figure 1.
3.
Adjust the NI 9230/9232.
a.
Initialize a calibration session on the NI 9230/9232. The default password is
NI
.
b.
Input the external temperature in degrees Celsius.
Table 4.
NI 9230/9232 Timing Configuration
Sample Mode
Samples Per Channel
Rate kS/s
NI 9230 Finite Samples
1280
12.8
NI 9232 Finite Samples
10240
102.4
Table 5.
NI 9230/9232 Verification Test Limits for Accuracy
Range
Test Point
1-Year Limits
Min (V)
Max (V)
Location
Value (V)
Lower Limit (V)
Upper Limit (V)
-30
30
Max
28.5
28.46853
28.53147
Mid
0.00
-0.007245
0.007245
Min
-28.5
-28.53147
-28.46853