Installing The Transmitter Unit - Honeywell Apex Technical Handbook

MAN0604_Issue 09_02-2013
2110M8030

3.1.1 Installing the Transmitter Unit

Cautions:
1. Observe precautions for handling electrostatic
discharge sensitive devices.
2. Ensure that the Apex Transmitter Unit flamepath is not damaged during this procedure.
The flamepath is formed by the mating surfaces of the Apex Transmitter Unit top and
base (see diagram).
(1) Isolate all associated power supplies and ensure that they remain OFF during the installation
procedure. Ensure a gas free atmosphere.
(2) Attach the Apex Transmitter Unit to the supporting structure.
Drill two mounting holes (68mm apart) and use the unit's mounting slots in the base with
either two M10 bolts or a single 10mm U-bolt Cable/conduit entry sealing plug
Top retaining
Flame-
path
Locating
pins
Cable securing
screw
External
earth
Unit base
(3) Detach the top of the Transmitter Unit.
Unscrew the three captive M8 bolts in the base. Support the top and let the metal retaining
cable, attaching the top to the base, hold the top. Take care not to damage or strain the
ribbon cable between the top and the base.
(4) Fit and connect the field wiring.
See the subsequent wiring table and diagram. Use either:
Conduit - using one or both of the 3/4 NPT conduit entries. Ensure that a conduit sealing
fitting is installed within 460mm of the enclosure on all conduit runs.
3. inSTAllATiOn
Unit top
cable
Cable/conduit
entry (2 off)
Ribbon cable
Interconnect PCB
Flamepath
Captive bolt
(3 off)
Certified
Sensor mounting
ZIF
point
23
Apex