National Instruments PXI-4110 User Manual

NI PXI-4110 Calibration Procedure | © National Instruments | 19
Verifying Line Regulation
Complete the line regulation test to verify that the output voltage falls within specified limits
when the line voltage coming from the auxiliary power supply changes or that the output current
falls within specified limits when the line voltage changes. Each test requires a variable auxiliary
power supply to vary the line voltage or current. An NI APS-4100 is not sufficient for verifying
line regulation because the output voltage is fixed. Run this test only after the
Verifying Voltage Measurement Accuracy and Verifying Current Measurement Accuracy tests
pass.
Voltage Line Regulation
To verify voltage line regulation, use the NI 4110 in Constant Voltage mode and confirm that
the output voltage change falls within calculated limits while varying the line voltage using a
variable power supply. Table 14 lists the voltage values and measurements needed to complete
verification. Refer to Figure 6 for the necessary connections.
Figure 6. Voltage Line Regulation Verification Connection Diagram
NI PXI-4110
+
–
HI
LO
DMM
Voltage
Mode
Variable Power
Supply
+
–
AUX IN +
AUX IN –

National Instruments PXI-4110 Specifications

General

Brand	National Instruments
Model	PXI-4110
Category	Power Supply
Language	English