Burkert Type 8793 - Manual (Page 9)

9
General Information
Safety Instructions
The Type 8792/8793 were developed with due consideration given to the accepted safety rules and are
state-of-the-art. Nevertheless, dangerous situations may occur.
Failure to observe this operating manual and its operating instructions as well as unauthorized tampering with
the device release us from any liability and also invalidate the warranty covering the devices and accessories!
4. USE IN THE EX AREA
4.1. Basic safety instructions for use in the Ex area
DANGER!
Risk.of.explosion!
To prevent the risk of explosion, observe not only the basic safety instructions in the respective operating
instructions for operation in the Ex area, but also the following:
• 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 rules of
technology for construction and operation.
• Do not repair the device yourself, but replace it with an equivalent device. Repairs may be performed by the
manufacturer only.
• Do not expose the device to any mechanical and/or thermal loads which will exceed the limits described in the
operating instructions.
4.2. Safety instructions for the installation and
maintenance of Ex devices
DANGER!
Risk.of.explosion!
To prevent the risk of explosion, observe the following during installation and maintenance in the Ex area:
• Do not open the device housing.
• To avoid electrostatic charges, clean the housing surface with a damp cloth only.
• Secure cable connections, which use circular connectors, with suitable locking clips.
(For example: EXCLIP, FA. Phoenix Contact, Type SAC-M12-EXCLIP-M, Art. no. 1558988 or
Type SAC-M12-EXCLIP-F, Art. no. 1558991.
• Use only cable and line entry points which have been approved for the respective application area and which
have been screwed into place according to the associated installation instructions.
• Install pre-assembled cable glands according to the installation instructions supplied by the gland manufacturer.
Before start-up in the Ex area, check whether the cable gland, as described in the associated installation
instructions, has been installed.
• Close all unnecessary cable glands with lock screws approved for the explosions area.
Maintenance: If installation is performed carefully, maintenance will not be required.
english
Type 8792, 8793 Type 8792, 8793