Honeywell Searchline Excel Technical Handbook page 42

Infrared gas detectors
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MAN0530 Issue 10 - 11/09
2104M0506
3. INSTALLATION AND OPERATION
via another type of junction box, e.g. Honeywell Analytics Junction Box Part
Number 00780-A-0100 - using the SHC Protection Device.
See the following diagram and description and Appendix C - Spare Parts.
Notes:
1.
The protection device must always be used for this type of connection.
2.
A hot work permit may be required for this procedure.
Carry out the following procedure to connect using the protection device.:
(1)
Isolate all power supplies.
(2)
Remove the cover of the junction box.
(3)
Hard wire the flying lead of the SHC Protection Device to the communications
link terminals in the box as shown:
To Receiver
(4)
Connect the Interrogator to the IS connector on the end of the SHC Protection
Device.
Powering Up
(1)
Apply power to the Excel Transmitter and Receiver units.
(2)
Press and hold the
Flying lead
Junction Box
Blue
B
Orange A
Black
0V
White
4-20
Red +24V
Green/
GND
Yellow
(Enter) key on the Interrogator keypad for at least two seconds.
IS connector
Blue
Brown
42
Searchline Excel
SHC Protection
Device flying
lead

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