PXIe-4468 Calibration Procedure
12
ni.com/services
30
0.316
-0.316
4.
Start the task.
5.
Acquire readings with the DUT.
6.
On a per channel basis, average all of the acquired samples.
7.
Stop and clear the task.
8.
Compare the averaged values to the appropriate limits in
The average is the offset at the tested gain setting.
AI Gain Accuracy Verification
Test Limits
Table 4:
AI Gain Verification Limits
Device
Gain (dB)
Calibrator Output
As-Found Test Limit
As-Left Test Limit
Amplitude
(V
rms
)
Frequency
(Hz)
Lower
Limit
(V
rms
)
Upper
Limit
(V
rms
)
Lower
Limit
(V
rms
)
Upper
Limit
(V
rms
)
-20
6.3
1000
6.28189
6.31816
6.28551
6.31452
-10
6.3
1000
6.28189
6.31816
6.28551
6.31452
0
6.3
1000
6.28189
6.31816
6.29637
6.30363
10
2.0
1000
1.99425
2.00576
1.99885
2.00115
20
0.63
1000
0.62819
0.63182
0.62964
0.63036
30
0.2
1000
0.19943
0.20058
0.19988
0.20012
