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Raising the alarm in extreme conditions and hazardous areas

Published: 17 February 2015 - Marianne Evans

R. STAHL’s new "Yodalex Super Series" comprises a suite of signalling de­vices designed for use in hazardous areas and harsh environments. The units are equipped with a lightweight GRP "Ex d" flameproof enclosure which provides a strong, robust, and safe housing designed to withstand the environmental demands of extreme temperatures and  is sealed against water and dust ingress according to IP66 and IP67. The Super Series is AT­EX and IECEx-approved for use in zones 1, 2, 21, and 22 for gas and dust atmospheres. Global onshore and maritime approvals, such as GL, CUTR, Inmetro, and Peso will follow shortly, enabling operation across many in­dustries throughout the world.

The omnidirectional horn featured on the YL6S and YA6S units has a maximum sound output of 110 dB at one meter and its patented product de­sign, unique to the Yodalex range, disperses sound radially outwards, which ensures maximum safety within the designated area. A further feature of the sounder is that the user can control the release of a sound tone over three individual stages, allowing a system for managing test and real time emergency procedures where the user can individually select the tone for each alarm stage from 32 internation­ally recognised frequencies.

The FL6S beacon is fitted with a 5 Joule Xe­non strobe when used in conjunction with the new lens designed specifi­cally for the Super Series, it produces a 49 effective candela flash at a rate of 1 Hz. Whether used individually or as part of the combination unit, the beacon is available with a choice of seven different lens colours including magenta. The YL6S combines all of the features present in both the YA6S and FL6S, housed within a single enclosure. This light-weight and cost-effective design reduces the amount of field cables and installation time compared to individual devices with units that are suitable for an extremely wide operational temperature range of -55…+70 °C and voltage options starting at 24 V DC, R. STAHL also provides variants suitable for 48 V DC and 115 or 230 V AC power supplies. All mechanical fixings including the lens guard are manufactured from 316/V4A stainless steel, ensuring opti­mal resistance to salt water in coastal, offshore or marine applications.

The release of the Super Series completes the new line of GRP signalling equip­ment offered by R. STAHL that also includes the YA90 directional sounder, the MCP manual interface, and the FX15 beacon. Together, these robust products provide customers with the complete range of audible and visual signalling as well as manual interface equipment for ATEX and IECEx haz­ardous zones 1, 2, 21, and 22 in extreme and aggressive environments.

Industry Connections: R Stahl


 
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