RS20/RS30...U
Release
01
06/2012
9
ATEX Directive 94/9 EC – Special conditions for safe use
Relevant for RS20/RS30-...U family devices when operating in explosive
gas atmospheres according to ATEX Directive 94/9 EC, the following
applies:
List of Standards:
EN 60079-0:2009
EN 60079-15:2010
Certificate No.: DEKRA 11ATEX0139 X.
Make sure that the device has the following label:
II 3G Ex nA IIC T4 Gc DEKRA 11ATEX0139 X
Ambient rating:
Ta: 0 °C ... +60 °C for “U” types (item 17 of nomenclature
breakdown).
The modules shall be installed in a suitable enclosure in accordance
with EN 60079-15 providing a degree of protection of at least IP54
according to EN 60529, taking into account the environmental
conditions under which the equipment will be used.
When the temperature under rated conditions exceeds 70 °C at the
cable or conduit entry point, or 80 °C at the branching point of the
conductors, the temperature specification of the selected cable and
cable entries shall be in compliance with the actual measured
temperature values.
Provisions shall be made to prevent the rated voltage from being
exceeded by transient disturbances of more than 40 %.
Connectors shall be connected or disconnected exclusively in dead-
voltage state.
DIP switches shall be switched exclusively in dead-voltage state.
The USB port (not mounted to RS20/RS30-...U devices) shall
remain disconnected.
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