Burkert 8681 - Technical Data; Operating Conditions

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Technical Data
6 TECHNICAL DATA
6.1 Operating conditions
DANGER!
Danger of explosion in a potentially explosive atmosphere (only in the event of a fault as zone 2)!
` In the potentially explosive atmosphere, only use devices that are approved for this purpose.
ThesedevicesareidentiedbyaseparateExtypelabel.Beforeuse,notetheinformationonthesepa-
rate Ex type label and in the Ex additional instructions.
` Observe the instructions on operating the device in a potentially explosive atmosphere in chapter „3
BasicSafetyInstructions“onpage12
WARNING!
Risk of injury from overheating of the control head.
Heating above the permitted temperature range can endanger people, the device and the environment.
` Do not expose the device to any mechanical or thermal loads that will exceed the limits described in the
operating instructions.
Ambient temperature:
Standard version: -10 ... +55 °C
inapotentiallyexplosiveatmosphere(zone2): +5...+55°C
Degree of protection: Standard version:
IP65 / IP67 according to EN 60529
(onlyifcables,plugsandsocketshavebeenconnectedcorrectly,thehood
has been sealed correctly and the adaptation to the process valve was
donecorrectly)
IP69K according to IEC 40050-9
(Housingsealwithconnectedexhaustairlineinsteadofsilencerandideally
closedcableglandsconrmedthroughIP69KStandardtesting)
Version for use in a potentially explosive atmosphere (Zone 2):
IP64 according to EN 60529 and requirements EN 60079-0: 2009
(onlyifcables,plugsandsocketshavebeenconnectedcorrectly,thehood
has been sealed correctly and the adaptation to the process valve was
donecorrectly)
6.2 Conformity / standards
The control head conforms to the EU Directives according to the EU Declaration of Conformity.
The applied standards, which are used to demonstrate compliance with the EU Directives, are listed in the
ECDeclarationofConformityand/ortheECtypetestcerticate.TheseareavailablefromBürkert.
english
Control Head Type 8681