Burkert Type 8640 - Manual (Page 2)

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PX04
Basic Safety Instructions
Danger!
Risk of explosion!
To avoid the risk of explosion, follow not only the basic safety instructions in the respective
operating instructions, but also observe the following information concerning operation in the
hazardous area:
• 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 equivalent device. Repairs may be
performed by the manufacturer only.
• Do not expose the device to mechanical and/or thermal stresses/influences which exceed
the limits described in the operating instructions.
Observe the specifications relating to temperature class and ambient temperature on
the rating plate.
Do not use the devices with gases or dust which have a lower ignition temperature
than specified on the rating plate
Safety instructions for installation and maintenance
Danger!
Risk of explosion!
To avoid the risk of explosion, observe the following information when performing installation
and maintenance in the hazardous area:
• Do not open the housing of the device when hazardouse atmosphere exist.
• To avoid an electrostatic charge, wipe the housing surface with a damp cloth only.
• Use only device sockets, 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.