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Chapter 3 Calibration Procedures
General Calibration/Adjustment Procedure
62
General Calibration/Adjustment Procedure
The calibration procedures from the front panel 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,
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.
Note that the power supply should be calibrated after 1-hour warm-up with
no load connected.
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
Note
You can terminate any CAL SETUP without changing its calibration
constants by turning off power.
Note
Perform the voltage calibration prior to the OVP calibration and the current
calibration prior to the OCP calibration.
Calibration Parameter
Voltage/
Current
Calibration Point
mnemonic
CAL SETUP 1 Voltage
V LO
V MI
V HI
CAL SETUP 2 OVP None
CAL SETUP 3 Current
V LO
I MI
V HI
CAL SETUP 4 OCP None