E2S introduces SIL 2 certified BEx alarm horn sounders and Xenon strobe beacons

E2S Warning Signals, the leading independent
audible and visual warning signals manufacturer, has introduced a SIL 2 version
of its flagship BEx range of explosion proof alarm horn sounders and Xenon
strobe beacons. 

The new IECEx and ATEX certified BEx horns and strobes
are the perfect solution for designers and integrators of SIL 2 systems; they
are designed and tested to ensure a 99.9% reliability rate, bringing plant
safety to new levels. To meet the requirements of SIL 2, a combination of
software and hardware in the new units accurately monitors and interprets the
sound output of the horn or the light output from the Xenon strobe to check it
is functioning correctly. The fault monitoring reports back to the control
panel utilising either separate fault contacts or by the introduction to the
monitoring circuit of a series resistor. Using the series resistor facility
eliminates the need for any additional cables and can be used in a standard
two-wire arrangement.

The key benefits are:

• The correct functioning of the signalling device function is checked
and communicated to the control panel

• Time consuming physical inspections are eliminated, reducing running
cost

• Plant safety is increased because all devices are confirmed to be
operating.

• The BEx units are designed to integrate seamlessly into the SIL 2
environment

A detailed technical and installation manual,
downloadable from www.e2s.com/SIL2, been
published to assist system designers and engineers. 

In high risk industries such oil, gas and petrochemicals, adopting SIL 2 (Safety Integrity Level) systems is becoming the
norm, in particular for the safety-critical fire and gas detection systems. While the fire and gas control panel will normally initiate
automatic process shutdown procedures in the event of an alarm, the audible and
visual warning devices are critical components in ensuring that personnel are
warned in an emergency.



Download the full press release in different languages: