National Instruments PXI-4130 User Manual

22 | ni.com | NI PXI-4130 Calibration Procedure
Current Load Regulation
To verify current load regulation, use the NI 4130 in Constant Current mode and confirm that
the output current change falls within calculated limits while varying the load voltage using
different resistors. Table 11 lists the resistance values and measurements needed to complete
verification. Refer to Figure 7 for the necessary connections.
Figure 7. Current Load Regulation Verification Connection Diagram
Complete the following steps to verify current load regulation:
1. For each test, connect the first specified resistance (R
1
) to the specified channel of the
NI 4130.
2. While taking a voltage measurement with the NI 4130 (V
1
), use the DMM in series to
measure the output current (I
1
).
3. Change the load from R
1
to R
2
and repeat the previous step.
4. For each test, the units for all current measurements and calculations should be the same as
the I Range unit. Record the current and voltage measurements for both resistances.
Load
+
–
NI 4130
LO Sense
HI Sense
HI
LO
DMM
Current
Mode
+
–
Auxiliary Power
Supply
+
–
AUX IN +
AUX IN –
NI APS-4100

National Instruments PXI-4130 Specifications

General

Brand	National Instruments
Model	PXI-4130
Category	Measuring Instruments
Language	English