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 un secure the power supply
according to the procedure given on page 62.
2 Disconnect all loads from the power supply and connect a DVM across
outp ut te rm i nals.
3 Turn on the calibration mode.
Turn on the calibration mode by holding down (Cal ibr ate) 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 s upply is not
in ‘‘C V ’’ mode, an error occurs.
Voltage and OVP Calibration
4 M ove 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 ‘‘STAR T 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
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