Spectrex 20/20F - Fast UV/IR Flame Detector - Manual (Page 24)

Spectrex Inc. - SharpEye TM UV/IR (F) Flame Detector Manual – TM756100 Rev A, July 2005
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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 1) to its back cover (Item 4) 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 terminal board (Item 5) inside the
detector cover is now revealed.
4 Remove the protective plug mounted on the detector conduit inlet (Item 6).
Pull the wires through the detector cover (Item 4). 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 6) according to the wiring
diagram. See section 6.7 and figures 6.
6 Connect a Grounding Cable to the Ground Terminal (Item 2) outside the
detector cover (Item 4).
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 6) to prevent them from interfering while
closing the detector’s housing.