NI PXIe-4464 Calibration Procedure | © National Instruments | 15
3. Create and configure an AI voltage task on the device as shown in Table 14.
4. Start the task.
5. Acquire readings with the NI PXIe-4464.
6. Measure the frequency of the acquired signal around 10 kHz. Compare the measured
frequency to the limits in Table 15.
7. Stop and clear the task.
Table 14. Timebase Frequency Verification Configuration
Configuration Value
Physical channel Dev_name/ai0
Gain
*
0 (dB)
Coupling AC
Terminal configuration Pseudodifferential
Excitation (IEPE) 0 (A)
Acquisition mode Finite number of samples
Rate 40000.0
Samples per channel 2560000
*
Refer to Table 3 for the maximum and minimum voltages to specify to ensure the specified gain range
is used on the module.
Table 15. Timebase Frequency Accuracy Limits
Function Generator
Output
As Found Test Limit As Left Test Limit
Amplitude
(V
rms
)
Frequency
(kHz)
Min
(kHz)
Max
(kHz)
Min
(kHz)
Max
(kHz)
6.3 10.000 9.99973 10.00027 9.99992 10.00008
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