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ATEX AUDIBLE
Safety has no limits Flame proof enclosure ‘d’
There is a danger of explosion wherever In the case of pressure-resistant encapsulation,
combustible gases, vapours, fluids or dusts the actual operating equipment is built into a
occur and can mix with air, oxygen or another pressure-resistant housing. In the event of an
reactive gas. The danger can arise in very diverse explosion inside, the housing prevents an ignition
locations, e.g. in the petrochemical and chemical breakthrough into the surrounding area. The
industry or at filling stations and oil/gas rigs. explosion is therefore restricted to the interior
of the device. On account of the necessary wall
However, facilities such as corn silos and coating thickness, devices in this protection system
plants are also potentially at risk of an explosion. are of a very sturdy construction and thus also
Explosions endanger man and the environment. often very well suited for adverse environmental
For this reason, international measures have conditions.
been developed that are intended to prevent
explosions or to minimise their effects. Enhanced safety ‘e’
This type of enhanced protection is usable with
Our Ex signaling devices meet the toughest only a few types of equipment/components
requirements and are subjected to the most (e.g. terminals). This type of protection is
stringent checks. Their quality and safety are conveniently often combined with pressure
checked by responsible bodies for compliance resistant encapsulation. In alarm products, this
with the highest quality standards. means that all essential components are housed
in the pressure-resistant housing and only
the connection terminals are accessible in the
increased safety housing.
For this reason we also offers most devices with
an ‘e connection box’ in order to enable simple
and safe electrical connections to be made.
The sensitive electronic components are
therefore protected against accidental damage
during mounting.
Intrinsically safety ‘i’
In the ignition protection type ‘i‘, the current and
voltage of allenergy storage devices as well as the
complete device are limited to the extent that no
ignition sparks and no excessively hot surfaces
can be generated. An explosive atmosphere can
develop, but it will not be ignited.
