Spectrex 20/20MPI - Commercial IR3 Flame Detector - Manual (Page 40)

SharpEye TM IR3 Flame Detector User Guide
28 User and Maintenance Manual
6.5 Detector Wiring
1 Choose the wiring configuration according to Typical Wiring
Configurations on page 41.
2 Connect the wire to the required terminal according to your wiring.
a Remove the three (3) socket-head captive screw M4-13 that secure
the detector housing (item 1 on Figure 5) to its back cover (item 8)
using the 3 mm Hex Key. Pull the detector housing from its
connection box.
b Make sure that the cover remains attached to the detector swivel
mount.
c Pull the cable through the cable gland.
d Connect the wires to the required terminals according to the wiring
diagram (see Typical Wiring Configurations on page 41).
e Verify that the wiring is wired according to the wiring diagram.
Improper connection may damage the detector.
f Check the wiring for secure mechanical connection and press the
wires neatly against the terminal board to prevent them from
interfering while closing the detector’s housing.
g Return the detector housing to the connection box and secure it with
the three (3) socket-head screws.
6.6 Wiring Function
Refer to Figure 6 and Figure 7.
The following describes the function of each electrical wire of the detector:
 Power Supply
 Terminal # 1 or red wire - used for Input Power
 Terminal # 2 or black wire - used for Return
 Fault Relay for Model 20/20MPI-R
The Fault output is a N.C. SPST contact relay:
 Terminal # 7 or brown wire
 Terminal # 8 or light blue wire
The contact is normally energized closed when the detector is in its
normal operational condition.
 Alarm Relay for Model 20/20MPI-R
The Alarm output is a N.O. SPST contact relay.
 Terminal # 5 or orange wire
 Terminal # 6 or violet wire