European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D209-00-501-IS
Issue 1
20-08-22
Sheet 3 of 6
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;
Lens guard – 12.33pF.
6) Product Location and Access
6.1.
Location and Mounting
The location of the unit 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 combined sounder beacon 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
unit 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 Combined Sounder Beacon Flare
Fig. 1b Fixing Location for Combined Sounder Beacon 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.
Fig. 2 Accessing the Enclosure.
To replace cover, check that the ‘O’ ring seal is in place.
Carefully push the cover in place. Insert and tighten down M4
screws, spring and plain washers in the order shown above
and tighten down.
7) Selection of Cable, Cable Glands, Blanking
Elements & Adapters
When selecting the cable size, consideration must be given
to the input current that each unit draws (see Table 1), the
number of sounders on the line and the length of the cable
runs. The cable size selected must have the necessary
capacity to provide the input current to all of the sounders
connected to the line.
The dual entries can be ordered with one of the following
options:
2-off M20 x 1.5 thread
2-off ½” NPT thread
1-off M20 x 1.5 & 1-off ½” NPT thread
(Appropriate cable entry devices
to be customer supplied)
Beacon
Housing
M4 Cover
Screw
M4 Spring
Washer
M4 Plain
Washer
Sounder
Housing
