American-magnetics 12200PS DC Power Supply (CE-Marked) Bedienungsanleitung PDF herunterladen (Seite 54)

CALIBRATION OPERATING MANUAL

5-2 Release 1.0 (98/07)

5.2 Calibration Setup

5.2.3 Accessing Calibration Potentiometers

WARNING

Disconnect AC power from the unit before removing the cover. Even when

the front panel power switch is in the OFF position, live line voltages are

exposed when the cover is removed. Repairs and adjustments must be

made by experienced service technicians only.

WARNING

Use a non-conducting, straight-blade screwdriver to adjust the trim pots.

CAUTION

Follow established antistatic procedures. There are static-sensitive parts on

the printed circuit boards.

You will need to remove the power supply's cover to access the programming and readback calibration

potentiometers which are located on the A2 PCB. See Figure 5.2-1 to locate the potentiometers.

Removing Option Card

If there is a GPIB or RS-232 option card (PCB) installed inside the power supply, you will have to remove it to

access the calibration potentiometers.

Tool Required: Phillips #2 screwdriver

Turn off the power supply. Disconnect AC Power. Remove the cover.

Remove 4 screws from their standoffs inside the power supply to release the option card.

Remove 2 screws at the rear panel to release the option card's sub-plate.

Unplug the ribbon cable connectors from the option card. Lift out card.

Figure 5.2-1 Programming and Monitoring Calibration Locations

(Top view.)

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American-magnetics 12200PS DC Power Supply (CE-Marked) Bedienungsanleitung Seite 54