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1.0 Introduction
These certified beacons have been designed for use in
potentially explosive gas and dust atmospheres and harsh
environmental conditions. The glass reinforced polyester
enclosures are suitable for use offshore or onshore,
where light weight combined with corrosion resistance is
required.
The beacon housing is manufactured completely from
a U.V. stable, glass reinforced polyester. Stainless steel
screws and mounting bracket are incorporated ensuring a
totally corrosion free product.
Units can be painted to customer specification and
supplied with indentification labels.
2.0 Installation
General
When installing and operating explosion-protected
equipment, requirements for selection, installation and
operation should be referred to eg. IEE Wiring Regulations
and the 'National Electrical Code' in North America.
Additional national and/or local requirements may apply.
Ensure that all nuts, bolts and fixings are secure.
Ensure that only the correct listed or certified stopping
plugs are used to blank off unused gland entry points and
that the NEMA/IP rating of the unit is maintained. MEDC
recommend the use of a sealing compound such as
HYLOMAR PL32 on the threads of glands and stopping
plugs in order to maintain the IP rating of the unit.
The unit can either be directly mounted using the inserts
moulded into the back of the enclosure (standard), or a
backstrap (optional) can be fixed to the base of the unit
thus giving an optional mounting position for when direct
mounting is deemed unsuitable.
There are 2 off M5 inserts in the base of the enclosure for
direct mounting.
Please note: for direct mounting, observe the following
formula to determine length of fixing screw required:-
Length of screw = Thickness of mounting surface +
10mm.
There are 2 off Ø8.5mm mounting holes in the optional
backstrap. These have been designed to accept an M8
screw or bolt.
MEDC recommend the use of stainless steel screws.
Cable termination
CAUTION: Before removing the cover assembly,
ensure that the power to the unit is isolated.
Unscrew and remove the 6 off M5 screws (4.0mm
hexagon key) holding the cover assembly to the
base. Keep in a safe, accessible location as they are
non-captive.
Twist the cover assembly gently clockwise and
anti-clockwise, whilst pulling it away from the base.
Remove to gain access to the interior.
Cable termination should be in accordance with
specifications applying to the required application. MEDC
recommends that all cables and cores should be correctly
identified. Please refer to the wiring diagram provided
with the product.
Ensure that only the correct listed or certified cable glands
are used and that the assembly is shrouded and correctly
earthed.
All cable glands should be of an equivalent NEMA/IP
rating to that of the unit and integrated with the unit such
that this rating is maintained.
The internal earth terminal, where fitted, must be used for
the equipment grounding connection.
Once termination is complete, carefully replace the cover
assembly back onto the base, avoiding damage to the
mating surfaces. Replace the 6 off M5 screws (4.0mm
A/F hexagon key) into the holes in the cover assembly
and tighten evenly. Ensure the O-ring is seated correctly
on the cover during re-assembly. Ensure the required
maximum gap of 0.2mm is maintained between the cover
and the base once assembled.
Purchaser/Customer should make Eaton aware of any
external effects or aggressive substances that the
equipment may be exposed to.
Ensure equipment is protected from direct dust laden
airflow which may cause charge transfer.
Xenon beacon Xb11 TM135 February 2023 www.eaton.com
Xenon beacon XB11
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