EB 8384-3 EN 11-1
Decommissioning
11 Decommissioning
The work described in this section is only to
be performed by personnel appropriately
qualiedtocarryoutsuchtasks.
Risk of fatal injury due to ineffective explo-
sion protection.
The explosion protection becomes ineffective
when the positioner cover is opened.
Î The following regulations apply to instal-
lation in hazardous areas: EN60079-14
(VDE0165, Part1).
The process is disturbed by interrupting
closed-loop control.
Î Do not mount or service the positioner
while the process is running and only af-
ter isolating the plant by closing the shut-
off valves.
To decommission the positioner before re-
moving it, proceed as follows:
Î Put the control valve out of operation.
See associated valve documentation.
Î Shut off and lock the supply air line to
the positioner.
Î Disconnect and lock the electrical power
supply.
DANGER
!
NOTICE
!
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