European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D209-00-011-IS
Issue 1
20-08-22
Sheet 3 of 5
Ambient Temperature Range
-20°C to +55°C
IP Rating
IP64 to EN/IEC60079-0
IP66 to EN60529
To maintain the ingress protection rating, the two off cable entries
must be fitted with suitably rated, certified cable entry and/or
blanking devices during installation.
Type Rating
Per UL50E / NEMA250: 4 / 4X / 3R / 13
Installation must be carried out in compliance with the latest
issue of the following standards:
EN60079-14 / IEC60079-14: Explosive atmospheres -
Electrical installations design, selection and erection
EN60079-10-1 / IEC60079-10-1: Explosive atmospheres -
Classification of areas. Explosive gas atmospheres
EN60079-10-2 / IEC60079-10-2: Explosive atmospheres –
Classification of areas. Explosive dust atmospheres
5) Special Conditions of Use
When used for a Group III application, the surface of the
enclosure may store electrostatic charge and become a
source of ignition in applications with a low relative humidity
<~30% relative humidity where the surface is relatively free of
surface contamination such as dirt, dust, or oil.
Guidance on protection against the risk of ignition due to
electrostatic discharge can be found in EN TR50404 and IEC
TR60079-32.
End user shall adhere to the manufacturer’s installation and
instruction when performing housekeeping to avoid the
potential for hazardous electrostatic charges during cleaning,
by using a damp cloth.
To maintain the ingress protection rating and mode of
protection, the cable entries must be fitted with suitably rated,
certified cable entry and/or blanking devices during
installation.
Equipment with the flare horn shall not be installed with the
flare higher than horizontal (to avoid accumulation of dust).
The equipment incorporates metal parts isolated from earth,
having capacitance values exceeding the limits permitted in
the standards of certification. Mounting bracket – 10.33pF.
6) Product Mounting and Access
6.1.
Location and Mounting
The location of the sounder should be made with due regard
to the area over which the warning signal must be audible.
They should only be fixed to services that can carry the
weight of the unit.
The E2x sounder should be secured to any flat surface using
the three 7mm fixing holes on the stainless steel U shaped
mounting bracket. See Figure 1. The required angle can be
achieved by loosening the two large bracket screws in the
side of the unit, which allow adjustment of the sounder in
steps of 18°. On completion of the installation the two large
bracket adjustment screws on the side of the unit must be
fully tightened to ensure that the unit cannot move in service.
Fig. 1a Fixing Location for Sounder Flare
Fig. 1b Fixing Location for Sounder Radial
6.2.
Access to the Enclosure
Warning – High voltage may be
present, risk of electric shock.
DO NOT open when energised,
disconnect power before opening.
Warning – Hot surfaces. External
surfaces and internal components
may be hot after operation, take
care when handling the equipment.
To access the enclosure, remove the four M4 posi pan head
screws, M4 spring and plain washers and withdraw the cover.
Q
Fig. 2 Accessing the Enclosure.
(Appropriate cable entry devices
to be customer supplied)
Cover
M4 Cover
Screw
M4 Spring
Washer
M4 Plain
Washer