National Instruments PXIe-4468, Процедура калибровки

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PXIe-4468 Calibration Procedure
© National Instruments Corporation
19
Terminal Configuration Pseudodifferential
Excitation (IEPE) Value from
Table 9
Acquisition mode Finite number of samples
Rate 200000
Samples Per Channel 125000
*Refer to
Table 3
for the maximum and minimum voltages to specify to ensure the specified
gain range is used on the module.
4. Start the task.
5. Acquire readings with the DUT. The readings are not used; the task is
run to set the device configuration.
6. Measure the output current on the DMM.
7. Stop and clear the task.
8. Compare this value to the limits in
Table 9
.
Note
After the last IEPE current verification step, turn off the current by
performing step 3 through 7 with the excitation parameter set to 0.
AO Differential Offset Accuracy Verification
Test Limits
Table 11:
AO Differential Offset Verification Limits
AO
Attenuation
(dB)
As-Found Test Limit As-Left Test Limit
Lower Limit
(mV)
Upper Limit
(mV)
Lower Limit
(mV)
Upper Limit
(mV)
0 -1.0 1.0 -0.5 0.5
10 -0.5 0.5 -0.2 0.2
20 -0.2 0.2 -0.1 0.1