31
Assembly
7 ASSEMBLY
7.1 Safety instructions
DANGER!
Danger of explosion in a potentially explosive atmosphere (only in the event of a fault as zone 2)!
` Opening the hood or the housing in a potentially explosive atmosphere is only allowed in a not ener-
gised state!
` Whenusedinapotentiallyexplosiveatmosphere(zone2),thedevicesmustbeinstalledinaprotected
mounting position in accordance with IEC/EN 60079-0.
WARNING!
Risk of injury due to electric shock!
` Beforereachingintothesystem(exceptfortheTeachprocedureinanon-explosiveatmosphere)switch
othepowersupplyandsecureittopreventrestarting!
` Observeapplicableaccidentpreventionandsafetyregulationsforelectricalequipment!
Risk of injury from high pressure in the system!
` Beforelooseninglinesandvalves,turnothepressureandventthelines.
Risk of injury from improper assembly!
` Assembly may only be carried out by trained technicians and with the appropriate tools!
Risk of injury from unintentional activation of the system and uncontrolled restart!
` Securesystemagainstunintentionalactivation;followingassembly,ensureacontrolledrestart.
NOTE!
Risk of damage to property in case of improper installation!
Non-observance can damage the device or the plant.
` Do not improperly stress the control head.
` Donotapplyanyleverageeectontheheadanddonotclimbonit.
` Whensealingtheangefromtheoutsidetotheinside,makesurethattheinowofcleaningagentis
considered and that the actuator space of the process valve towards the control head is sealed.
7.2 Assembly of the control head
The control head can be installed in any installation position, preferably with the hood face up.
Thecontrolheadshouldbeinstalledsuchthatlayersofdustthickerthan5mmcannotform;meaningthat
such should be ensured through correspondingly regular cleaning.
english
Control Head Type 8681