User Manual

5.6 External Current Programming Calibration
Follow the steps below to perform the external current programming calibration:
1. Connect the DMM to the external analog control terminals of DB25 connector (+ on the DMM to
Pins 10 and 24, - on the DMM to Pin 22(GND)) on the rear of the power supply, as shown in the figure
below:
Figure 5.5 – External Current Programming Calibration Diagram
2. Set the DMM to a DC voltage measurement. Select the EXT CURRENT parameter in the CAL menu
and press . The following will be displayed:
The P: 1/2 signifies there are 2 points to be calibrated and the current calibration point is 1.
3. Input the voltage reading from the DMM in the METER parameter by using the numeric
keypad and press .
4. Repeat this procedure by entering the meter readings for points 2.
5.7 CC Calibration of External Voltage
Follow the steps below to perform the calibration procedure for the constant current source of the
external voltage programming by resistor mode:
1. Connect the external analog control terminals of DB25 connector (Pins 9, 22(GND)) on the rear of
the power supply, as shown in the figure below: