Burkert Type 8798 User Manual
Page 2
2
english
Type 8791, 8792, 8793,
8798
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 which exceed the limits
described in the operating instructions.
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 device housing.
• To avoid an electrostatic charge, wipe the housing surface with a damp cloth only.
• Secure cable connections which have circular connectors with suitable securing 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 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.
• Type 8791 only: The housing design Remote in IP20 must be installed in a suitable
protective housing or a control cabinet for use in the hazardous area. These must comply
with the category of the following protection class:
Category 3G:
at least protection class IP54
Category 3D, non-conductive dust:
at least protection class IP5X
Category 3D, conductive dust:
at least protection class IP6X
Maintenance: If installation is carried out carefully, maintenance is not required.