SMC Sierra Monitor 3600-I, Руководство пользователя

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Model 3600-I IR3 Flame Detector
Page 32 of 66
Earth Terminal
Terminal
Chamber
Terminals
Internal Earth
Terminal
Detector Holding
Screw
Conduit / Cable
Inlet
2.7 Connecting the Detector
This section describes how to connect the electric cabling to the detector.
➣
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.
5. Connect the wires to the required terminals on the Terminal Board according to the wiring
diagram above ( Figure 24 ) and the wiring options table in Section 2.7.1 .
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.
8. Check the wires for secure mechanical connection and press them neatly against the
terminal to prevent them from interfering while closing the back cover.
9.
Place and secure the detector’s back cover by screwing the four (4) socket-head-screws
in the Cover Bolts (
Figure 19 ).
Figure 24: Detector with Cover Removed