Burkert Type 8690 - Manual (Page 8)

8
Basic safety instructions
3.1. instructions for use in explosion
protected area (EX area)
3.1.1. safety instructions
For use in EX area zone (gas) 1 and 2 applies:
DangEr!
risk of explosion!
to avoid the risk of explosion, follow not only the safety
instructions in the respective operating instructions, but also
observe the following information concerning operation in the
hazardous area:
• Observe the specifications relating to temperature class and
ambient temperature on the type label.
• Do not use the devices with gases or dust which have a lower
ignition temperature than specified on the type label.
• Installation, operation and maintenance may be performed by
qualified technicians only.
• Observe the applicable safety regulations (also national safety
regulations) as well as the general regulations of technology
concerning installation and operation.
• Do not repair the device yourself, but replace it with an equiva-
lent device. Repairs may be performed by the manufacturer only.
• Do not expose the device to mechanical and/or thermal stresses
which exceed the limits described in the operating instructions.
to avoid the risk of explosion, observe the following infor-
mation when performing installation and maintenance in the
hazardous area:
• Do not open the housing of the device when hazardous atmo-
sphere exist.
• Using suitable measures, ensure that no electrostatic charges
can occur in the EX area.
• To avoid an electrostatic charge, wipe the housing surface with
a damp cloth only.
• Use only cable and line entries which are authorized for the
particular application area and
• are screwed together according to the appropriate installation
instructions.
• If the cable gland is pre-assembled, install it according to the
installation instructions supplied by the manufacturer of the
screw connection.
Before start-up, check whether the cable gland was installed in
the hazardous area as described in the appropriate installation
instructions.
• Seal all cable glands which are not required with ex-approved
screw plugs.
• Do not open the housing of the device for operating inside
switches when hazardous atmosphere exist.
While bringing into service no hazardous atmosphere shall exist.
english
Type 8690 Ex