User`s guide

Chapter 3 Calibration Procedures
General Calibration/Adjustment Procedure
66
Front Panel Voltage and Current Calibration
1 Unsecure the power supply.
To calibrate the voltage and current, you must unsecure the power supply according
to the procedure given on page 62.
2 Disconnect all loads from the power supply and connect a DVM across output
terminals.
3 Turn on the calibration mode.
Turn on the calibration mode by holding down (Calibrate) key as you turn on
the power supply and hold down the key until you hear a long beep. Make sure that
the power supply is in ‘‘CV’’ mode. If the power supply is not in ‘‘CV’’ mode, an
error occurs.
Voltage and OVP Calibration
4 Move down a level to the voltage calibration mode.
The display shows the above message to indicate that the power supply is ready for
voltage calibration.
5 Calibrate DAC and select the low voltage calibration point.
The ‘‘START BITCAL’’ message is displayed for about 3 seconds to indicate that the
power supply is ready for DAC calibration. Then it counts down numbers from 30 to 0.
Then, the display shows the low voltage calibration point.
CAL MODE
CAL SETUP 1
30 LEFT
V LO 0.5000 V
Error
Calibrate
Error
Calibrate
Error
Calibrate
Error
Calibrate