Dräger Polytron SE Ex PR M1 DD Gebrauchsanweisung Seite 33

Safety relevant remarks for the Enclosure
(Junction Box, Type Range 2000)
Technical Data:
Type: Range 2000 (with silicone-gasket)
Threads: M 20 x 1.5 (left side),
M 25 x 1.5 (bottom)
Material: grey cast iron, galvanised
Terminals: 4 pieces SAKK 4 Ceramic,
(numbered)
Protection: IP 66
Manufacturer: FEEL, Flameproof Electrical
Enclosures
Ltd., Tat Bank Road,
Oldbury, B69 4NP, U.K.
Approval:
Operating tempe-
rature range: -50 °C to +150 °C
The following manufacturer's safety relevant hints con-
cerning the junction box with the above given specifica-
tion have to be considered:
1 This enclosure has been designed as an electrical
enclosure suitable for installation within an explosive
atmosphere as described in EN 60079-0. Installation
must be in accordance with EN 60079 and current
wiring regulations of the country where the enclosure
will be installed.
2 Installation
The enclosure must be fixed into position using the
external fixing lugs provided for this purpose. Under
no circumstances must the enclosure be supported
by way of any cable entry device. The silicone gasket
must be secured between the body and the cover. It
is important that the cover is securely fitted to the
body of the enclosure. All cover fixing screws must
be tightened down to 3.5 Nm.
3 Cable entry devices
These must be selected in accordance with the
marking on the certification label on the cover of the
enclosure.
4 "T" Ratings
The enclosure may be approved for installation in
various ambient temperatures. The marking on the
label on the cover must comply with the ambient
temperature into which the enclosure is being in-
stalled.
5 Conductor Installation
All conductors must be fully tightened down within
the terminals. Conductor tightening screws may be
below the surface of the terminal, it is important that
the correct sized screwdriver is used. An oversized
screwdriver will break the insulation around the ter-
minal.
II 2G Ex e IIC T3 Gb
II 2D Ex tb IIIC T200°C Db
IP 66 Max. power 9 Watts
CML 14 ATEX 3040
6 Earthing
The enclosure is fitted with a brass M6 hexagon
headed internal and external earth connection; a
suitable ring type terminal lug must be used to se-
cure the earth conductor
7 Maintenance
Periodic inspection of this enclosure is necessary,
refer to EN 60079-17 Clause 4.3 for guidance. Par-
ticular attention should be paid to; tightening of termi-
nal screws, gaskets, cover fixing screws and earth
assemblies, if any are lost or require replacement,
contact FEEL for the appropriate part. Failure to use
approved replacement parts will very likely invalidate
certification.
8 Surrounding Area Conditions
The junction box has been manufactured from cast
iron and is fitted with stainless steel cover fixing
screws, neoprene or silicone gasket and brass earth
screws. The performance of these materials should
be considered with respect to contact with aggres-
sive substances with which the enclosure may come
into contact.
The enclosure is intended for use under normal in-
dustrial conditions and must not be installed in an
area where extreme vibration may occur.
9 Ingress Protection
The enclosure has been tested to IP 66 and with the
cover fully tightened down and the use of suitable ca-
ble entry devices will maintain this protection under
normal working conditions, however a minimum pro-
tection of IP 65 must be achieved.
10 Misuse
This enclosure must be used as an electrical enclo-
sure only. It is not intended for any other function.
11 Tools
Box spanner 10mm across flats, for cover fixing
screws, internal and external earth.
The installation of this product must be carried out by
suitably trained and qualified personnel only. Flame-
proof Electrical Enclosures Ltd. (FEEL) will not accept
any responsibility for any damage, injury or any form of
loss due to products not being installed or used in strict
accordance with these instructions. If in doubt, please
contact us.
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