1.
Disconnect or disable all connections to the PXIe-4137.
2.
Allow the PXIe-4137 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.
Testing the Safety Interlock
In order to ensure safe operation of the PXIe-4137, test the safety interlock for proper
functionality before completing any verification procedures.
Testing with an Application Development Environment
1.
Disconnect the output connector from the PXIe-4137 front panel.
2.
Ensure that the safety interlock input on the test fixture is closed.
3.
Set the
niDCPower Output Function
property or
NIDCPOWER_OUTPUT_FUNCTION
attribute to DC Voltage for the PXIe-4137.
4.
Set the voltage level range to 200 V, and set the voltage level to 42.4 V.
5.
Set the current limit range to 1 mA, and set the current limit to 1 mA.
6.
Initiate the session.
7.
Verify that the Voltage Status Indicator is amber.
8.
Open the safety interlock input using the test fixture.
9.
Verify that the Voltage Status Indicator is red.
10. Reset the device using the niDCPower Reset VI or the
niDCPower Reset
function.
11. Verify that the Voltage Status Indicator is green.
Caution
If the PXIe-4137 fails the safety interlock test, discontinue use of the
device and contact an authorized NI service representative to request a Return
Material Authorization (RMA).
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
NI PXIe-4137 Calibration Procedure
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© National Instruments
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