Flowserve OR 52-7 User Manual download pdf (Page 12)

Electrical Connection

Measuring transducer ORT 7

1. Undo cover screws and open cover.

2. Detach all three-pole terminal strips from the base board and pull connecting lines through cable

glands.

3. Mark connecting lines: “Mains”, “Alarm 1”, “Alarm 2”, “Light emitter” and “Light receiver”.

4. Connect all terminal strips in accordance with the wiring diagram. Connect screens only to ORT 7.

5. Connect PE with the earthing screw in the housing.

6. Re-attach terminal strips.

7. Tighten the cable glands in order to seal the cable entry. Use the supplied sealings plugs to seal off

any unused cable glands.

8. Close housing lid and tighten cover screws.

Attention

■ The oil & turbidity detector has a power consumption of max. 50 VA. Please make sure

that the power supply is rated for 100 VA.

■ To protect the output relay contacts fuse electric circuits with 2.5 A (slow-blow).

■ Provide connected contactors and actuators with RC combinations (in accordance with

manufacturers’ speciﬁcations) in order to suppress interferences.

■ Make sure that the disconnecting switch (Fig. 4) is easily accessible and in the close

proximity of the equipment (EN 61010-1).

■ Mark respective switch as disconnecting device for the measuring transducer.

This switch can be dispensed with if the control cabinets are upstream of the equipment

and ﬁtted with a disconnector for the measuring transducer.

Note

■ The light emitter/receiver and the purging valve are fitted with a 4 m long connecting

cable and only have to be connected to the measuring transducer.

■ The terminal strips on the CPU board of the ORT 7 cannot be detached.

■ Strip off approx. 25 mm of the cable insulation coating and screen of the connecting

cables for the signal input of the separator ON/OFF and for the GPS input.

Tools

■ Screwdriver for cross-recess screws, size 1 and 2.

■ Screwdriver for slotted screws, size 2.5, completely insulated to VDE 0680

■ Conductor end sleeve pliers

■ Insulation stripper

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Flowserve OR 52-7 User Manual Page 12