European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
[email protected] Tel: +44 (0)208 743 8880
Document D150-00-701-IS Issue 6 11-08-2022
Sheet 2 of 2
www.e2s.com Fax +44 (0)208 740 4200
The equipment is certified for use in ambient
temperatures in the range -40
o
C to +55
o
C and shall
not be used outside this range.
4)
Installation Requirements
Installation of this equipment shall only be carried
out by suitably trained personnel in accordance
with the applicable code of practice e.g.
IEC 60079-14/EN 60079-14.
Repair of this equipment shall only be carried out
by the manufacturer or in accordance with the
applicable code of practice e.g. IEC 60079-19/EN
60079-19.
The certification of this equipment relies on the
following materials used in its construction:
Enclosure:
Aluminium Pressure Die Cast Body
LM6
Through enclosure mechanism: Plastic Nylon Zytel
Injection Moulded
Sealing of enclosure and mechanism: O-ring
Acrylonitrile-Butadiene Rubber
If the equipment is likely to come into contact with
aggressive substances, then it is the responsibility
of the user to take suitable precautions that prevent
it from being adversely affected, thus ensuring that
the type of protection is not compromised.
“Aggressive substances” - e.g. acidic liquids or
gases that may attack metals, or solvents that may
affect polymeric materials.
“Suitable precautions” - e.g. regular checks as part
of routine inspections or establishing from the
material’s data sheet that it is resistant to specific
chemicals.
Refer to certificates SIRA 09ATEX2287X, IECEx
SIR 09.0122X and CSAE 21UKEX2555X for
special conditions of safe use.
5)
Call Point Location and Mounting
The location of the call point should enable ease of
access for operation and testing. The unit should
be mounted using the 4 off fixing holes which will
accept up to M4 sized fixings.
When installing in Zone 0 applications, ensure that
the equipment enclosure is protected from impact.
View of base unit showing fixing centres.
To gain access to the mounting holes in the base
the front cover must be removed.
This is achieved by removing the 4 off M4 cap
head bolts holding on the cover.
Once the screws are removed the cover will hang
down out of the way to gain access to the Ex e
terminal block, the internal earth terminal and
mounting hole recesses.
6)
Earthing
The unit has both internal and external earth
terminals.
It is recommended that a cable crimp lug is used
on the earth wires.
The internal earth wire is placed under a earth
clamp which will stop the cable twisting. This is
secured by an M4 screw and spring washer.
The external earth lug should be located between
the two M5 washers provided and securely locked
down with the M5 spring washer and two locknuts.
Internal Earth
terminal
External
Earth Stud
Terminal block
7)
Cable connections
There are 3 off cable entries for M20x1.5 Ex t
approved cable glands or stopping plugs.
Cable glands or stopping plugs must be rated IP66.
The unit can be wired in a number of different ways
depending whether normally open or normally
closed contacts are required.
The equipment needs to be installed with ATEX
and/or IECEx certified Zener Barriers or Galvanic
Isolators.
For wiring schematic refer to drawing D150-06-001
