Honeywell Apex Technical Handbook page 96

Gas detection system
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MAN0604_Issue 09_02-2013
2110M8030
Caution:
For the Transmitter Unit only take care not to damage or strain the ribbon cable
connecting the lid and the Interconnect PCB in the base of the unit.
(3)
For the Transmitter Unit support the top and ensure that it is supported whilst the next two
steps are carried out.
For the Certified Junction Box let the metal retaining cable, attaching the base and the top,
hold the top, then go to Step (7).
(4)
Unlatch the ribbon cable Zero Insertion Force (ZIF) connector on the Transmitter Unit
Interconnect PCB.
Grip the ends of the ZIF and pull it vertically upwards until it is felt to stop and the ribbon cable
is loose. Refer to the Transmitter Unit installation component diagrams in Chapter 3.
(5)
Pull the ribbon cable clear.
(6)
Remove the support from the Transmitter Unit top.
Let the metal retaining cable, attaching the base and the top, hold the top.
(7)
Disconnect the Certified Sensor wiring.
Remove the wiring from the terminal blocks on the Interconnect PCB in the base of the
Transmitter Unit or Certified Junction Box.
Record the location of the sensor wiring in the terminal blocks.
(8)
Unscrew the Certified Sensor from its mounting point.
5. MAINTENANCE
96
Certified
Sensor mounting
point
Certified
Sensor
Apex

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