| Special instructions for use in
explosive atmospheres and
fonctional safety
General comments
OLCT 20 gas detectors comply with the requirements of ATEX 2014/34/UE
European Directive relating to explosive Dust and Gas atmospheres.
The information given in the following sections should be respected and taken
into account by the manager of the site where the equipment is installed. With
respect to requirements for improving the safety and health protection of
workers potentially at risk from explosive atmospheres, please refer to ATEX
1999/92/CE European Directive.
Warnings
Do not open when energized. After de-energizing, delay 2 minutes before
opening. Read instructions notice (cable glands).
Requirements for use in dust explosive atmospheres
For the equipment installed in dust explosive atmosphere, user shall ensure a
sufficient cleaning to prevent dust accumulation on the device. The maximum
permissible thickness of a dust layer must be less than 5 mm.
Cable entries
Cable glands and other wiring accessories (plugs, adaptors, etc.) shall be “db”
certified for use in gas explosive atmospheres and “tb” for use in dust explosive
atmospheres. They must be at least IP66 and of M20x1.5 6g or M25x1.5 6g
types in accordance with ISO965-1 and ISO965-3 standards. Minimum depth of
engagement must be 5 threads and installation must be done in accordance
with current version of EN 60079-14 and eventually with any local or national
additional requirements that may apply in the country of installation.
The cables should be suitable for use at a temperature equal to or greater than
80°C.
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