DLM-E 3kW & 4kW Series Power Supplies Maintenance and Troubleshooting
5.3 Calibration
Calibration of the output voltage, current, or OVP is accomplished using multiturn trimpots.
Table 5–2 gives the location, function, and effect of each potentiometer.
Calibration is performed at the factory during testing. Recalibration should be performed
annually and following major repairs. With the cover in place, calibration should be done
through access holes in the cover or front panel. See Figure 5–1.
Figure 5–1. Potentiometer Locations
Location Function Adjustment Procedure
Top Cover Output Voltage Clockwise rotation increases output voltage setting
Top Cover Output Current Clockwise rotation increases output current setting
Top Cover Front Panel Voltmeter Clockwise rotation increases voltage meter reading
Top Cover Front Panel Current Meter Clockwise rotation increases current meter reading
Front Panel OVP Clockwise rotation increases OVP shutdown setting
Table 5–2. Potentiometer Adjustment Procedures
M362000-01 Rev E
5-3
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