FMS ExMGZ100/200.ATEX Mode D'emploi page 21

Manual CSA 80001248
5. Installation
For installation and operation, the rules of
generally accepted engineering practice, the
provisions of NEC, national regulations and
the instructions set out in this manual must
be observed.
5.1 Ambient temperature
To maintain to the maximum permissible surface
temperature, the ambient temperature must not
fall below or exceed the range –20 °C to 50 °C.
Influences from other heat sources or exposure
to sunlight shall also be taken into consideration
when evaluating the temperature conditions.
These must not cause any additional heating of
the apparatus.
The data stated on the type label is binding!
5.2 Erection
A clearance of >50 mm shall be maintained
between intrinsically safe and non-intrinsically
safe circuits (this also applies outside the haz-
ardous area).
According to requirements, the apparatus can be
installed:
a) outside the hazardous area
or
b) inside hazardous areas in Zone 2
5.2.1 Potential equalization conductor
The potential equalization connections of the
DMS interface, type DI05, (terminals 3, 4, 21, 22,
23 and 24) shall be connected to the potential
equalization of the hazardous area by means of
two conductors. If only one terminal point is used
for this purpose, at least one other terminal point
shall be incorporated in the connec-tion using a
bridge link.
Potential equalization shall exist throughout the
intrinsically safe circuits.
Edition February 2020
Copyright
thuba Ltd., CH-4002 Basel
Switzerland
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