Appendix Service Information
General Calibration/Adjustment Procedure
182
General Calibration/Adjustment Procedure
Note The power supply should be calibrated after 1-hour warm-up with no load connected.
And Perform the voltage calibration prior to the OVP calibration.
The front panel calibration procedures are described in this section.
• For voltage calibration, disconnect all loads from the power supply and
connect a DVM across the output terminals.
• For current calibration, also disconnect all loads from the power supply,
connect an appropriate current monitoring resistor 0.01
9 across the output
terminals, and connect a DVM across the terminals of the monitoring
resistor.
• You can abort a calibration at any time by turning the power supply off from
the front panel, by issuing a remote interface device clear message, or by
pressing the front-panel ‘‘Local’’ key.
The following table shows calibration parameters and points which should be
used to calibrate the output voltage and current.
Table 3-2 Parameters for Calibration
Calibration
Parameter
Voltage/
Current
Calibration Point
mnemonic
VOLTAGE CAL Voltage
V LO
V MI
V HI
OVP CAL OVP None
CURRENT CAL Current
I LO
I MI
I HI
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