PR electronics 5437 Manual Del Producto página 35

For installation in a potentialy explosive gas atmosphere, the following
instructions apply:
For "Ex ic" the transmitter must be installed in an enclosure providing a degree of
protection of at least IP20 according to IEC60529.
In type of protection non sparking, Ex nA or Ex ec, the transmitter shall be installed in
an enclosure providing a degree of protection of not less than IP54 in accordance with
IEC 60079-0, which is suitable for the application and correctly installed e.g. in an
enclosure that is in type of protection Exn or Ex e.
Additionally, the area inside the enclosure shall be pollution degree 2 or better as
defined in IEC60664-1.
Cable entry devices and blanking elements shall fulfill the same requirements.
For installation in a potentially explosive dust atmposphere, the following
instructions apply:
If the transmitter is supplied with an intrinsically safe signal "ic" and interfaces an
intrinsically safe signal "ic" (e.g. a passive device) , the transmitter shall be mounted in
a metal enclosure form B according to DIN 43729 or equivalent that provides a degree
of protection of at least IP6X according to IEC60529.
Cable entry devices and blanking elements shall fulfill the same requirements.
If the transmitter is supplied with an non-sparking signal "nA", or interfaces a non
sparking signal, the transmitter shall be mounted in an enclosure, providing a degree of
protection of at least IP6X according to IEC60529, and in conformance with type of
protection Ex tD, or Ex t.
Cable entry devices and blanking elements shall fulfill the same requirements.
5437V101-ES 35