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 an
external DMM. You do not need to separately verify or adjust 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.
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.
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NI PXIe-4141 Calibration Procedure
