Spectrex 40/40R - Single IR Flame Detector - Manual (Page 37)

TM 40/40R, Rev (4) November 2010
Connecting the Detector 25
2.7 Connecting the Detector
This section describes how to connect the electric cabling to the detector
(Figure 6).
To connect the detector to the electrical cables
1 Disconnect the power.
2 Remove the back cover of the detector by removing four (4) socket
head-screws in the cover bolts. The terminal chamber is now revealed.
3 Remove the protective plug mounted on the Detector Conduit/Cable
entry; pull the wires through the Detector Inlet.
4 Use a ¾" – 14 NPT explosion-proof conduit connection or M25x1.5
flameproof gland to assemble the cable / conduit to the detector.
Figure 6: Detector with Cover Removed
5 Connect the wires to the required terminals on the Terminal Board
according to the wiring diagram (Figure 6) and Table 15.
6 Connect the grounding (earth) wire to the ground (earth) screw outside
the detector (Earth Terminal). The detector must be well grounded to
earth ground.
7 Verify the wiring. Improper wiring may damage the detector.
Earth
Terminal
Terminal
Chamber
Terminals
Internal Earth
Terminal
Detector Holding
Screw
Conduit / Cable
Inlet