Samson 4763, Mounting And Operating Instruction

Page: 47 / 78

EB 8359-2 EN 10-1
Decommissioning
10 Decommissioning
The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
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: EN 60079-14
(VDE 0165, Part 1).
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
!