2
Remarks for safe use in hazardous areas
Functions and features
• Use in hazardous areas according to the classification
II 3D
(group II, category 3D, apparatus for dust atmosphere).
Complies with the requirements of the standards EN 60079-0 and EN 60079-31.
• Use in hazardous areas according to the classification
II 3G
(group II, category 3G, apparatus for gas atmosphere).
The requirements of the standard EN 60079-15 are met.
• Certificat d‘examen de type:
BVS 20 ATEX E 057 X
• Certificat d‘examen IECEx de type:
IECEx BVS 20.0044X
• Marking
II 3D Ex tc IIIC T95°C Dc X
II 3G Ex nA IIC T4 Gc X
• Permissible operating temperature of the application (proper usage):
Ta: -20°C...+60°C
Installation / Set-up
The units must only be installed, connected and set up by qualified staff. The qualified staff
must have knowledge of protection classes, regulations and provisions for apparatus in
hazardous areas.
Check whether the classification (see “Marking” above and marking on the unit) is suitable
for the application.
Installation remarks / Installation
• Adhere to the relevant national regulations and provisions.
• The relevant installation regulations must be adhered to. In particular, take into account the
requirements relating to the temperature limitation as regards the expected dust deposits.
• Avoid electrostatic charging on housings and cables.
• To avoid electrostatic charging steps must be taken to ensure the equalisation of potential
of metal parts (plug housing, fixing elements, etc.).
• Protect the units and the cables efficiently against damage.
• To avoid soiling, do not remove the dust caps from the cable glands or the plugs until
introducing the cables or attaching the socket.
• If the sensing direction is altered, ensure that the locking screw is securely tightened.