Manual

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