Sentry CR105 Manual download pdf (Page 15)

U7698E Flame Detector

Part 334614E

E 2002 Nordson Corporation

Manual 34-49

Electrical Connections

WARNING: All electrical connections must be made according to local or

national electrical codes. Use properly sized wire and approved conduit

and fittings. Failure to observe this warning could result in property damage

or personal injury.

Detector Heads

Connect the detector heads to the indicator panel with 7-wire shielded

cable, flexible or rigid conduit, and liquid-tight conduit fittings.

See Figure 5.

1. Unscrew the upper housing (1) from the lower housing (4).

2. Loosen the mounting screws and unplug the electronics module (3) from

the connector board in the upper housing.

3. Remove one of the plugs (8) from the upper housing, and install a

-in. NPT liquid-tight conduit fitting (7) in the open port.

4. Connect conduit (6) to the fitting. Route the cable (5) through the

conduit and fitting and into the upper housing.

5. Connect the cable wires to the terminal block (2) and the detector head

ground. See Figure 6 for connections.

6. See Figure 5. Set the configuration switches (9).

7. Plug the electronics module back into the connector board. Tighten the

electronics board mounting screws.

8. Screw the upper housing on the lower housing.

9. Install a liquid-tight conduit fitting into a knockout in the bottom of the

indicator panel and secure the conduit to the fitting.

10. Connect the cable wires to the indicator panel terminal block as shown

in Figure 6.

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Sentry CR105 Manual Page 15