Flowserve OR 52-7 - Manual (Page 12)

2
Electrical Connection
Measuring transducer ORT 7
. 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 ”, “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 00 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 600-).
■
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
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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.
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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
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Screwdriver for cross-recess screws, size  and 2.
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Screwdriver for slotted screws, size 2.5, completely insulated to VDE 0680
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Conductor end sleeve pliers
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Insulation stripper