Manual

Spectrex Inc. - SharpEye

UV/IR Flame Detector Manual –

TM20/20LB Rev E, August 2004

6.6 Wiring (Refer to Fig. 5)

1 Disconnect power.

2 Remove the four protective set-screws (Fig 4a, item 1) from detector front.

3 Release the four socket-head screws that secure the detector housing

(Item 3) to its back cover (Item 6) using No. 5 Hex Key for M6 screw. Hold

the housing during the removal of the screws. With the screws removed, pull

the detector housing from its cover. The cover remains attached to the

detector swivel mount. The housing slides under the cover and remains

attached to it by a securing cable (Item 8). The terminal board (Item 7) inside

the detector cover is now revealed.

4 Remove the protective plug mounted on the detector conduit inlet (Item 10).

Pull the wires through the detector cover (Item 6) and secure them firmly to

the cover using the cable-tie (Item 11) attached to it. Use a 3/4”-14NPT or

M25 x 1.5P explosion-proof conduit/cable gland connection.

5 Connect the wires to the required terminals (Item 7) according to the wiring

diagram. See section 6.7 and figures 6 and 7.

6 Connect a Grounding Cable to the Ground Terminal (Item 4) outside the

detector cover (Item 6). For FM installation connect the Grounding Cable to

the Ground Thread (Item 4) using appropriate screw.

The detector must be well grounded to Earth Ground for proper

operation.

7 Verify the wiring. Improper wiring may damage the detector.

8 Check the wires for secure mechanical connection and press them neatly

against the Terminal Board (Item 7) to prevent them from interfering while

closing the detector’s housing.