JUMO exTHERM-DR, Operating Manual, Page: 45 / 100

8 IECEx 45
Special conditions for use of the de-
vice 1. Intrinsically safe electrical circuits may
only be connected when the JUMO exTHERM-DR
is de-energized, including all supply lines.
2. Before the JUMO exTHERM-DR, includ-
ing all supply lines, is switched on, the protective
cap for the intrinsically safe electrical circuits must
be put back on correctly again.
3. The JUMO temperature probes specified
in the technical data from the data sheets 901006
and 902006, do not have any safe isolation to the
fitting. For the safety evaluation, the connections
are considered as grounded. This means that the
plant operator must ensure that, during connection
of the intrinsically safe electrical circuits, the local
ground potential (e.g. potential equalization or FB)
is present and the intrinsic safety of the JUMO
exTHERM-DR is not negated by this.
v
Chapter 10.14 "Fühler für Betriebsmedium
Luft"
4. The temperature probe terminal heads do
not meet the material composition requirements of
IEC 60079-0:2011 which are required for category
1 applications. The device must be installed so that
the danger of sparks from outside or through fric-
tion can be excluded.
v
Chapter 4.2 "Abnehmen
der Schutzkappe" and Chapter
4.3 "Anschlussplan"
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