E2S BExTS110D Instruction Manual page 2

3) Type Approval Standards
The sontel carries an EC Type Examination Certificate and
IECEx Certificate of Conformity, and have been certified to
comply with the following standards:
EN60079-0:2012 + A11 and EN IEC 60079-0 :2018 /
IEC60079-0:2017 (Ed 7): Explosive Atmospheres -
Equipment. General requirements
EN60079-1:2014 / IEC60079-1:2014 (Ed 7): Explosive
Atmospheres - Equipment protection by flameproof
enclosures "d"
EN 60079-31:2014 / IEC60079-31:2013 (Ed 2):
Explosive Atmospheres - Equipment dust ignition protection
by enclosure "t"
4) Installation Requirements
The sontel must only be installed by suitably qualified
personnel in accordance with the latest issues of the relevant
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
The installation of the sontel must also be in accordance with
any local codes that may apply and should only be carried
out by a competent electrical engineer who has the
necessary training.
5) Special Conditions of Use
Repair of the flamepath / flameproof joints is not permitted.
The enclosure is non-conducting and may generate an
ignition-capable level of electrostatic charges under certain
extreme conditions (such as high-pressure steam). 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.
Additionally, cleaning of the equipment should be done only
.
with a damp cloth
6) Location and Mounting
The location of the sontel should be made with due regard to
the area over which the warning signal must be visible. They
should only be fixed to services that can carry the weight of
the unit.
The BEx sontel should be secured to any flat surface using at
least two of 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
sontel in steps of 18°. On completion of the installation then
two large bracket adjustment screws on the side of the unit
must be fully tightened to ensure that the unit cannot move in
service.
_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. D210-00-021-IS Issue 4 20-04-2020
Fig. 1 Fixing Location for Sontel Flare
Fig. 1 Fixing Location for Sontel Radial
7) Access to the Flameproof 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 Ex d chamber, remove the four M6 hexagon
socket head screws and withdraw the flameproof cover taking
extreme care not to damage the flameproof joints in the
process. M6 cover screws are Class A4-80 stainless steel
and only screws of this category can be used for the
enclosure.
(Appropriate cable glands
to be customer supplied)
Fig. 2 Accessing the Explosion proof Enclosure.
On completion of the installation, the flameproof joints should
be inspected to ensure that they are clean and that they have
not been damaged during installation.
Check that the earth bonding wire between the two castings
is secure and the 'O' ring seal is in place. When replacing the
flameproof cover casting ensure that it is square with the
flameproof chamber casting before inserting. Carefully push
the cover in place allowing time for the air to be expelled.
Only after the cover is fully in place should the four M6
Stainless Steel A4-80 cover bolts and their spring washer be
inserted and tightened down. If the cover jams while it is
being inserted, carefully remove it and try again. Never use
the cover bolts to force the cover into position.
sales@e-2-s.com
www.e-2-s.com
Sheet 2 of 5
Flameproof cover
M6 Spring
Washer
M6 Cover
Screws
Tel: +44 (0)208 743 8880
Fax: +44 (0)208 740 4200