Special Hazards - WIKA T53.10 Mode D'emploi

2. Safety
If the transmitter is installed in an explosive atmosphere requiring
the use of equipment of category 1 G and if the enclosure is made
of aluminium, it must be installed such, that, even in the event of
rare incidents, ignition sources due to impact and friction sparks are
excluded; if the enclosure is made of non-metallic materials, electro-
static charging shall be avoided.
For installation in a potentially explosive dust atmosphere, the
following instructions apply:
The transmitter shall be mounted in a metal enclosure form B
according to DIN 43 729 that is providing a degree of protection of at
least IP 6X according to EN 60 529, that is suitable for the applica-
tion and is correctly installed.
Cable entries and blanking elements shall be used that are suitable
for the application and correctly installed.
For an ambient temperature ≥ 60 °C, heat resistant cables shall be
used with a rating of at least 20 K above the ambient temperature.
The surface temperature of the enclosure is equal to the ambient
temperature plus 20 K, for a dust layer with a thickness up to 5 mm.

2.4 Special hazards

WARNING!
Observe the information given in the applicable type
examination certificate and the relevant country-specific
regulations for installation and use in potentially explo-
sive atmospheres (e.g. IEC 60 079-14, NEC, CEC).
Non-observance can result in serious injury and/or
damage to equipment.
For additional important safety instructions for instur-
ments with ATEX approval see chapter "2.3 Additional
safety instructions for instruments with ATEX approval".
WIKA Operating Instructions Temperature Transmitter T53
GB
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