PXIe-4466/4467 Calibration Procedure
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1. Connect the AI channel under test to the Calibrator as shown in
Figure 1.
Repeat 6 times, once for each gain setting.
2. Configure the calibrator to generate an output with the amplitude
and frequency from Table 4.
3. Create and configure an AI Voltage channel task using the values in
Table 5 .
Table 5: AI Gain Verification Configuration
Configuration Value
Physical Channels Dev_name/aix
Gain* Gain from Table 4
Coupling AC
Terminal Configuration Pseudodifferential
Excitation (IEPE) 0 (A)
Acquisition mode Finite number of samples
Rate 250000
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.
6. Calculate the RMS amplitude of the acquired fundamental harmonic.
Compare this amplitude to the appropriate voltage limits in Table 4.
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