9.
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. For zero
current test points, disconnect all external equipment from the I/O connector on the
NI 4141 and take a current measurement solely with the NI 4141, in order to ensure that
the output current is zero. In calculations for zero current test points, substitute 0 A for
the
DMM Measured Current
.
10. If more than one level range is specified, repeat the previous steps using the values
specified in each level range.
Remote Sense
Connecting and Configuring Equipment for Voltage Remote
Sense Accuracy Verification
1.
Make the necessary connections for this procedure, as shown in the following figure:
Figure 4. Voltage Remote Sense Output Verification Connection Diagram
Load3
Load2
Load1
+
–
DMM
Load Voltage Measurements
DMM
LO Lead Drop Measurements
+
–
NI-DCPower Device
Sense LO
Sense HI
HI
LO
DMM1
Voltage
Mode
DMM2
Voltage
Mode
2.
Set the
niDCPower Sense
property or
NIDCPOWER_ATTR_SENSE
attribute to Remote.
3.
Set the
niDCPower Output Function
property or
NIDCPOWER_OUTPUT_FUNCTION
attribute to DC Voltage for the NI 4141.
Verifying Voltage Remote Sense Accuracy
Use the NI 4141 in constant voltage mode with a test circuit to simulate the voltage drop
between the device and a load.
Complete this procedure only after successfully completing all previous Verification
procedures.
Refer to the following table as you complete the following steps.
10
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NI PXIe-4141 Calibration Procedure
