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Masoneilan 12400 DLT ATEX Instruction Manual | 13
10. SPECIAL CONDITIONS OF USE
10.1. For Intrinsic Safety and Flameproof
▪
It is under the user responsibility to check once a year the gasket and in the event of
damage to replace the defective parts with manufacturer's replacement parts only.
▪
The user will have to check the temperature increase on the 12400 head coming from the
mechanical part in contact with the 12400 housing or through the process thermal
radiation be less or equal than the temperature classification allowed. This must be done
in conformance with
EN/IEC 60079-14
and / or national and local regulations applicable
for explosive atmospheres.
▪
For use in dusty hazardous areas (zones 20, 21 & 22), the user will have to clean
regularly the different sides of the enclosure to avoid the deposits of dusts; the maximum
thickness must be <5 mm. This cleaning will be done with respect to the next requirement.
It is recommended for safe operation, the local conditions around the device are
free of potentially explosive atmosphere.
▪
To avoid the risk of ignition from electrostatic discharge it shall be necessary to follow the
guidance of
IEC/TS 60079-32-1
for example to clean the device with a wet rag.
It is recommended for safe operation, the local conditions around the device are
free of potentially explosive atmosphere.
▪
The final user during the 12400 installation on site must indicate the protection mode used
on the serial plate by removing the tear-off tabs or putting a cross in the dedicated area as
per
EN/IEC 60079-0
requirements.