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ATEX units
Certified to EN60079-0 and EN60079-1
DB1
Ex d unit (ATEX certification No. Baseefa02ATEX0207X)
Ex db IIB T6 Gb (Tamb. -20°C to +60°C)
DB1H
Ex d unit (ATEX certification No. Baseefa02ATEX0209X)
Ex db IIB T5 Gb (Tamb. -20°C to +70°C)
The ATEX certificate and product label carry the ATEX group and category marking:
II 2 G
Where:
Signifies compliance with ATEX
II
Signifies suitability for use in surface industries
2
Signifies suitability for use in a zone 1 area
G
Signifies suitability for use in the presence of gases
(DB1H) DNV Type approved (H and 24VDC versions only). Approved according to IEC60945: Maritime
navigation and radio communication equipment and systems.
The equipment is classed as exposed.
Minimum compass safe distance is 5m.
6.0 SPECIAL CONDITIONS FOR SAFE USE (IECEx and ATEX)
1. The enclosure is a potential electrostatic charging hazard, and should only be cleaned with a damp cloth.
7.0 FUNCTIONAL SAFETY - DB1H
Introduction
The DB1H Sounder has been designed for use in potentially explosive atmospheres and harsh
environmental conditions. The marine grade alloy or stainless enclosures are for use offshore or
onshore, where light weight combined with corrosion resistance and strength is required.
The safety function of the Sounder is to provide a pre-determined audible warning sound when
required if the correct voltage is applied to the unit. The DC version of the Sounder is designed to
operate on a supply voltage tolerance of +/- 20%,
Under No fault (Normal) Operating conditions the DB1 Sounder will provide an audible warning
sound when required by the system.
Under fault conditions the failure mode of the Sounder is a failure to provide an audible warning
sound. For the failure rate associated with this failure mode please refer to the table below.
© Eaton MEDC Ltd 2018
01/18
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