Initiating the Adjustment Session
Initiate an external calibration session (a special type of NI-DCPower session) by calling the
niDCPower Initialize External Calibration VI or
niDCPower_InitExtCal
function.
(Optional) You can close the session and commit the new constants to hardware after you
complete each adjustment procedure.
Related Information
Closing the Adjustment Session
on page 17
Connecting and Configuring Equipment for Voltage
Adjustment
1.
Make the necessary connections for this procedure, as shown in the following figure:
Figure 6. 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 NI 4141.
Adjusting Voltage Measurement
Compare a set of measured voltages reported by the NI 4141 to the voltages measured by a
DMM. You do not need to separately verify both measurement and output. The architecture of
the NI 4141 ensures that if measurement is accurate, then output is as well, and vice versa.
Refer to the following table as you complete the following steps.
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NI PXIe-4141 Calibration Procedure
