European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D190-00-671-IS
Issue 2
06-03-2023
Sheet 3 of 15
5)
Specific Conditions of Installation
ATEx/IECEx & UKEx Installations:
The cable entries have two M20 x 1.5
–
6H entry thread and a
single ½” NPT thread. If the installation is made using cable
glands, only suitably rated ATEx/IECEx or UKEx certified cable
glands must be used. They must be suitable for the type of cable
being used and also meet the requirements of the current
installation standards EN 60079-14 / IEC60079-14.
If the installation is made using conduit, openings must have a
sealing fitting connected as close as practical to the wall of the
enclosure, but in no case more than the size of the conduit or
50mm, whichever is the lesser.
Any unused cable entries must be closed with suitably rated and
UKEx certified blanking plugs.
For high ambient temperatures the cable entry temperature
may exceed 70ºC or the cable branching point temperature
may exceed 80ºC and therefore suitable heat resisting
cables and cable glands must be used, with a rated service
temperature at least as stated below:
NEC / CEC Installations:
The cable entries have two M20 x 1.5
–
6H entry thread and a
single ½” NPT thread. If the installation is made using cable
glands, only suitably rated and UKEx certified cable glands must
be used. They must be suitable for the type of cable being used
and also meet the requirements of the current installation
standards for NEC & CEC.
If the installation is made using conduit, openings must have a
sealing fitting connected within 18” of enclosure.
Any unused cable entries must be closed with suitably rated and
certified blanking plugs.
All Installations:
The plastic horn is not anti-static and the metallic enclosure has a non-
conductive coating. These may generate an ignition-capable level of
electrostatic charges under certain extreme conditions. The user
should ensure that the equipment is not installed in a location where it
may be subjected to external conditions that might cause a build-up of
electrostatic charges on non-conducting surfaces.
Only the explosionproof cover is to be used for access to the
enclosure for installation, service and maintenance.
6)
Specific Conditions for Safe Use
Flameproof threaded joints and cemented joints are not permitted to
be repaired.
7)
Product Mounting and Access
7.1. Mounting
The D1x Alarm Horn may be secured to any flat surface using at
least two of the three or four 7mm fixing holes. The enclosure
provides IP66 protection and is suitable for installation in exterior
locations providing it is positioned so that water cannot collect in
the horn, and the cable entry is sealed.
14
5
5
.7
1
in
.
30
1
.1
8
in
.
30
1
.1
8
in
.
236.9 9.33 in.
21
9.
6
8
.6
4
in
.
335.9 13.23 in.
314.5 12.38 in.
40
3.
2
1
5.
87
in
.
465.9 18.34 in.
55 2.17 in.
59
2
.3
2
in
.
59
2
.3
2
in
.
21
5
8
.4
6
in
.
Fig 1: Mounting Locations
The Equipment must not be installed with the horn facing upwards
of horizontal.
7.2. Installation procedure
a.
Secure the D1x unit to a flat surface via the three 7mm
fixing holes in the mounting bracket.
b.
Remove the explosionproof cover of the alarm horn by
unscrewing it, taking care not to damage the
explosionproof threads in the process (Refer to section
7.4).
c.
Fit an M20/NPT suitably rated cable gland or conduit entry
into the hole in the enclosure and connect the field wiring
to the appropriate alarm horn terminals as shown in D190-
06-651. The power supply terminals are duplicated so that
units may be connected in parallel. An end of line
monitoring resistor may be fitted to DC units only (see
section 10). If the second and third M20/NPT entries are
not used, suitably rated stopping plugs must always be
fitted.
d.
Replace the explosionproof cover of the loudspeaker,
taking care not to damage the explosionproof threads.
Tighten fully.
7.3. Hornless Variants
The D1x Sounder is also available as a variant with no horn fitted
in the factory. The Horn threaded nose portion has a fitment
thread of 1-3/8” – 18 UNF (to BS1580 or ANSI B1.1). The
customer is responsible for sourcing and correctly fitting a suitable
horn that meets all of the relevant safety requirements.
Minimum Ratings of Cables & Cable Glands
Max Ambient Temp (°C)
55
60
65
70
75
D1xS2FDC024-S/D1xS2HDC024-S
Min. Rating (°C)
70
75
80
85
90
Table 2: Min. Ratings of Cables & Cable Glands.
D1xS2F
D1xS2H
