DWEX DIGITAL LOUD-SPEAKING EXPLOSION PROOF CALL STATION
User Manual
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info@armtel.com © Armtel
INTRODUCTION
This User Manual is intended for introducing «DWEx Digital Loud-Speaking Explosion
Proof Call Station» ARMT.665230.006 manufactured by Armtel LLC, Russia to the User.
DWEx is the subscriber equipment to use at industrial and transportation enterprises
within digital Intercom and Public Address /General Alarm (PA/GA) communication systems
DCN and IPN manufactured by Armtel, Russia.
Short name of product – DWEx.
DWEx is designed for employment in explosion proof zones of the premisses and
external installations in accordance with certain explosion proof marking, requirements
ТR ТS 012/2011, GOST IEC 60079-14-2013, chapter 7.3 «Regulations for Electrical
Installation» (PUE), ATEX 2014/34/EU and other normative documents, regulating usage of
electrical equipment in highly explosive zone.
DWEx has explosion-proof categories: «explosion-proof equipment», provides
protection type of «flameproof enclosure» («d») according GOST IEC 60079-1-2011 (EN
60079-1:2014), provides protection «increased safety «е» according ГОСТ Р МЭК 60079-7-
2012 (EN 60079-7:2015), provides protection «intrinsically-safe circuit «i» type «ib»
according GOST 31610.11-2014 (EN 60079-11:2012), provides protection type of «dust
ignition protection type «tD» according ГОСТ Р МЭК 60079-31-2010 (EN 60079-31:2014)
and designed according GOST 31610.0-2014 (EN 60079-0:2012).
Explosion-proof marking as per GOST 31610.0-2014 – «1Ex d e ib IIC T6 Gb Х» and
«Ex tb ib IIIC T85 °C IP66 Db».
Explosion-proof marking as per EN 60079-0:2012 – «II 2 G Ex db eb ib IIC T6 Gb» and
«II 2 D Ex tb IIIC T85 °C IP66 Db».
Maintenance personnel for DWEx shall be appointed by the management at the
installation site.
The maintenance personnel shall be required to know the operating procedure of
DWEx to the extent provided for by the User Manual.
Duties of the maintenance personnel shall include maintenance of DWEx in accordance
with this User Manual.
ATTENTION! In connection with systematic work to improve the design and
manufacturing technology, it is possible some discrepancy between the description and the
supplied product, which does not affect its operation or maintenance.
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