National Instruments PXIe-4468, Calibration Procedure

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PXIe-4468 Calibration Procedure
18
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Figure 4.
Initial Connection for IEPE Current-mXLR
1. DMM 3. BNC – mXLR Cable
2. Banana – BNC Adapter 4. PXIe-4468 with mXLR
Verification Procedure
Complete the following procedure to verify the IEPE current.
Repeat 2 times, once for each channel.
1. Connect the AI channel under test to the DMM as shown in
Figure 3
or
Figure 4
.
Repeat 3 times, once for each IEPE current setting.
2. Set the DMM to the AMPS function and the 10 mA range for the 4 mA
and 10 mA test points, and the 100 mA range for the 20 mA test point.
3. Create and configure an AI Voltage task using the values in
Table 10
.
Table 10:
IEPE Current Verification Configuration
Configuration Value
Physical Channels
Dev_name
/ai
x
Gain* -20 (dB)
Coupling AC