Table 6. Voltage Measurement Adjustment
Level Range
Limit Range and Limit
Test Point
10 V
1 mA
10 V
-10 V
1.
Set the first specified level range, limit range, and limit on the NI 4141.
2.
Set the level on the NI 4141 to the first specified test point.
3.
Take a voltage measurement using the DMM, and take a voltage measurement using the
NI 4141.
4.
Store the values from the previous step as inputs for the niDCPower Cal Adjust VI or
function called in the following steps.
5.
If more than one test point per level range is specified, repeat the previous steps for each
test point, from setting the level to the test point on the NI 4141 up to this step.
6.
If more than one level range is specified, repeat the previous steps using the values
specified in each level range.
7.
Update the measurement calibration constants by configuring and calling the niDCPower
Cal Adjust Voltage Measurement VI or
niDCPower_CalAdjustVoltageMeasurement
function.
a)
Input the DMM measurements as the
measured outputs
.
b)
Input the NI 4141 measurements as the
reported outputs
.
c)
Input the specified level range as the
range
.
Connecting and Configuring Equipment for Current
Adjustment
1.
Make the necessary connections for this procedure, as shown in the following figure:
Figure 7. Current Verification or Adjustment Connection Diagram
NI-DCPower Device
Sense LO
Sense HI
HI
LO
DMM
Current
Mode
+
–
2.
Set the
niDCPower Output Function
property or
NIDCPOWER_OUTPUT_FUNCTION
attribute to DC Current for the NI 4141.
NI PXIe-4141 Calibration Procedure
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© National Instruments Corporation
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