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1.0 Introduction
The Moflash Intrinsically Safe Sounder-Beacon Range of products (IS-SB-02-
xxxx) are ATEX and IECEx certified. This range is approved to be installed in
Groups I (Mining) and Group II (above ground), Zones 0, 1 or 2 with gas groups
IIA, IIB, IIC and Zones 20, 21 and 22 for dust groups IIIC and carries a tem-
perature classification of T5. The Sounder-Beacon Range has a total of 32 alarm
tones selectable via a DIP switch which is set upon installation. This switch also
gives the option to change the 1Hz flash signal (Automatically Synchronised
to the Sounder Tone) to a static (constantly on) signal. When powered via a
suitable Galvanic Isolator or Zener Barrier, the Sounder will draw a constant
33mA. The Sounder has diode reverse polatiry protection and is also End of
Line resistor compatible.
2.0 Intrinsically Safe Labelling
The product will have an individual serial number printed onto the head base
plate. An example of the sounder label is shown below:
These products have been tested by notified body
Element Materials Technol-
ogy Rotterdam
who are UKAS accredited to BS EN ISO/IEC 17025:2005 and
ISO/IEC 17065:2012. It is also a Notified Body for the ATEX Directive, an
IECEx Certification Body and an IECEx Testing Laboratory.
The suffix X at the end of the certificate numbers indicates that there are special
clauses added for safe use of these units.
3.0 Types of Approval and Standards Applied
The Moflash IS Sounder product has been approved to the following standards:
IEC 60079-0:2011 / EN 60079-0:2012 + A11:2013
IEC 60079-11:2011 / EN 60079-11:2012
EN 54-3:2001+A1:2002+A2:2006
