Spectrex 20/20SH - Hydrogen Flame Detector - Manual (Page 54)

Spectrex Inc. - SharpEye TM Hydrogen (SH) Flame Detector Manual – TM 784600, Rev. A, May 2005
46
2. W IRING (R EFER TO F IG . 18.)
1 Disconnect
power.
2 Release the four (4) slotted-head screws (item 3) that secure the terminal box
cover (Item 2). The terminal box is now revealed.
3 Remove the protective plug mounted on the detector conduit inlet, pull the
wires through the terminal box (Item 7). Use M25x1.5 EExe cable glands to
assemble the cable to the detector/terminal box.
4 Connect the wires to the required terminals (Item 4) according to the wiring
diagram. See paragraph 2.1 and figures no. 19 and no. 20.
5 Connect the grounding wire to the ground screw outside the detector cover
(Item 5).
The detector must be well grounded to Earth Ground for proper
operation.
6 Verify the wiring. Improper wiring may damage the detector.
7 Check the wires for secure mechanical connection and press them neatly
against the terminal to prevent them from interfering while closing the cover
(Item 2).
8 Place and secure the terminal box cover(Item 2) using four (4) slotted-head
screws (Item 3).