Spectrex 20/20MU - Mini Flame Detector - Manual (Page 35)

Spectrex Inc. - SharpEye TM ML & MU Flame Detector Manual – TM 767100, Rev. A, April 2005
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6.5 Detector Mounting
These detectors are not approved for location in hazardous classified areas
A. Choose the wiring configuration according to Appendix A.
B. Connect the wire to the required PIN on the connector or choose the
required color on the cable, according to your wiring diagram.
C. Connect the grounding wire to general screw outside the detector, (Figs.2
and 3). The detector must be well grounded to earth ground for proper
operation.
6.6 Wiring Function
(See Fig. No. 8 and No.9.)
The following describes the function of each electrical wire of the detector:
Power Supply
PIN No. 1 or red wire -Input Power
PIN No. 2 or black wire - Return
Manual Bit Activation
PIN No. 11 or yellow wire - Manual BIT activation.
The manual BIT is initiated by a momentary connection of the 11 (yellow wire) to
the power supply Return line.
Fault Relay
The Fault output is a N.C. SPST contact relay:
PIN No. 5 or brown wire
PIN No. 6 or light blue wire
The contact is normally energised closed when the detector is in its normal
operational condition.
Alarm Relay
The Alarm output is a N.O. SPST contact relay.
PIN No. 7 or orange wire
PIN No. 8 or violet wire