Calibrate
Chapter 3 Calibration Procedures
General Calibration/Adjustment Procedure
If the entered number is within an acceptable range, a "ENTERED" message appears for one second. If the entered number is not correct, an "MIN VALUE" or "MAX VALUE" message appears for one second and the display shows the middle voltage calibration point again. The display now shows the high voltage calibration point.
10Read the DVM and change the first voltage value on the display to match the measured voltage.
For example, if the DVM reads 28.995V, adjust the current to 28.995 V using the knob and arrow keys.
v hi 28.995 v
11Pressing the "Calibrate" key saves the new voltage calibration constants, and goes to the OVP calibration mode.
cal setup 2
A "CALIBRATING" message appears for one second to indicate that the voltage calibration is progressing and new voltage calibration constants of "SETUP 1" are stored. Then, the display shows above message to indicate that the power supply is ready for the OVP calibration.
If the calibration fails, a "DAC CAL FAIL" or " ADC CAL FAIL" message appears for one second and the display shows the "CAL SETUP 1" for voltage calibration again.
Current and OCP Calibration
Connect an appropriate shunt (0.019) across the output terminals, and connect a digital voltmeter across the shunt resistor for the current calibration.
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