You do not need to separately verify both measurement and output. The architecture of the
PXIe-4139 ensures that if measurement is accurate, then output is as well, and vice versa.
Related Information
Reverification on page 23
After completing adjustment, wait a minimum of five minutes for the internal device
temperature to stabilize. Repeat the Verification section to determine the as-left status of
the device.
Self-Calibrating the PXIe-4139
Complete the following steps to self-calibrate the PXIe-4139.
1. Disconnect or disable all connections to the PXIe-4139.
2. Allow the PXIe-4139 30 minutes to warm up with the PXI chassis fans set to HIGH.
3. Initialize an NI-DCPower session.
4. Call the self-calibration function.
5. Close the NI-DCPower session.
Connecting and Configuring Equipment for Voltage
Verification
1. Make the necessary connections for this procedure, as shown in the following figure:
Figure 2. Voltage Verification or Adjustment Connection Diagram
DMM
Voltage
Mode
+
–
NI-DCPower Device
Sense LO
Sense HI
HI
LO
2. Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION
attribute to DC Voltage for the PXIe-4139.
Verifying Voltage Measurement and Output
Compare a set of voltages measured by a DMM to the voltage test points requested by the
PXIe-4139.
Refer to the following table as you complete the following steps.
Verify ranges in the order listed in the table.
6 | ni.com | NI PXIe-4139 Calibration Procedure
To Next Page
Loading...
