AMETEK DLM Series - Manual (Page 27)

DLM-E 3kW & 4kW Series Power Supplies Installation
Always disconnect power, remove external voltage sources, and allow time for internal circuits
to discharge before making internal adjustments or replacing components. When performing
internal adjustments or servicing the unit, ensure another person with first aid and resuscitation
certification is present. Repairs must be made by experienced technical personnel only.
Be sure to isolate the power supply from the input line with an isolation transformer when using
grounded test equipment, such as an oscilloscope, in the power circuit as these are referenced
to the AC input line.
WARNING!
Removal of the front panel filter and cover allows access to moving parts
and potentially hazardous voltages. Ensure that the power is turned off
prior to removal of the filter for maintenance or cleaning.
2.2.5 Parts and Modifications
Do not use substitute parts or make any unauthorized modifications to the power supply to
ensure that its safety features are not degraded. Contact customer service engineers for service
and repair help.
2.3 Initial Inspection
Upon first receiving your DLM–E Series power supply, perform a quick physical check, paying
particular attention to front panel controls and indicators as well as rear panel connectors and
terminals. The front and rear panel diagrams are located in Section 2.4.
2.3.1 Physical Check
After unpacking, perform an initial inspection to ensure the unit and parts shipped with it have
not been damaged in transit. The package should contain the power supply, a manual, a remote
sense connector, a 25–pin sub–D mating connector for J3, and an EMI filter core.
1. Inspect for dents to the cover and chassis; for scratches and cracks on the front and rear
panels; and for any broken controls, connectors, or displays.
2. Turn front panel controls from stop to stop. Rotation should be smooth.
3. Test the action of the POWER switch. Switching action should be positive.
4. If internal damage is suspected, remove the cover and check for printed circuit board
and/or component damage. Reinstall cover.
If damage has occurred, save all packing materials and notify the carrier immediately. Refer to
the terms of the warranty. Direct any repair problems to the manufacturer.
Note: Section 2.7 Initial Functional Tests contains electrical and operational tests you can
perform to ensure the unit is in proper working order after shipment. Run these tests
after applying AC input power but before connecting the load to the power supply.
2.4 Controls, Connectors, and Indicators
Refer to Figure 2–2 or Figure 2-3 (depending on the model) and the descriptions below.
M362000-01 Rev E 2-3