Special Conditions For Safe Use - E2S GNExB2X05 Series Instruction Manual

Equipment Category
2G / 2D
Ambient Temperature Range
-50°C to +70°C
IP6X to EN/IEC60079-0
IP66 to EN60529

5) Special Conditions for Safe Use

Repair of the flame path / cemented joints is not permitted.
Figure 1: Flame Path.
The enclosure is non-conducting and 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.
The stainless steel beacon guard is not earthed and may
generate an ignition-capable level of electrostatic charges. It
has a capacitance of 10pF according to EN/IEC60079-0,
clause 7.5.
All entries must be fitted with a suitable seal at the interface
with enclosure.
6) Product Mounting and Access
6.1. Location and Mounting
The location of the beacons 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 beacons should be securely bolted to a suitable surface
using the 9.4mm diameter bolt holes in the base of the unit
(see figure 2).
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. D156-00-201-IS
IP Rating
Issue 4
6.2. Access to the Flameproof Enclosure
In order to connect the electrical supply cables to the beacon
it is necessary to remove the flameproof cover to gain access
to the flameproof chamber. To access the Ex d chamber,
loosen the M4 grub screw on the beacon cover. Open the
enclosure by turning the beacon cover counterclockwise and
remove the cover, taking extreme care not to damage the
flameproof threads in the process (see figure 3).
Figure 3: Accessing the Explosion Proof Enclosure.
On completion of the installation the flameproof threaded joint
should be inspected to ensure that they are clean and that
they have not been damaged during installation.
Flameproof threaded joints are not intended to be repaired.
Ensure that the 'O' ring seal is in place and undamaged.
When fitting the flameproof cover ensure the thread is
engaged correctly. Fully tighten the cover all the way, ensure
no gap is visible between the cover and base of the beacon
enclosure. Tighten the M4 grub screw.
05-10-21
Figure 2: Fixing Location for B2 Beacon.
www.e2s.com Tel: +44 (0)208 743 8880
Sheet 4 of 7