Samson 611, Mounting And Operating Instructions

Page: 37 / 64

EB 6116 EN 37
Maintenance
7 Maintenance
Risk of fatal injury due to the ignition of an
explosive atmosphere.
Incorrect installation, operation or mainte -
nance of the i/p converter in potentially ex -
plosive atmospheres may lead to ignition of
the atmosphere and cause death.
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The following regulations apply to instal -
lation in hazardous areas: EN 60079-14
(VDE 0165, Part 1).
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Installation, operation or maintenance of
the i/p converter must only performed by
personnel who has undergone special
training or instructions or who is autho
-
rized to work on explosion-protected de -
vices in hazardous areas.
The i/p converter requires no maintenance.
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See section 8 for troubleshooting.
7.1 Cleaning the restrictor
The restrictor (see Fig. 18) is located inside
the enclosure. It can be accessed from the
back of the device.
1. Unscrew the screw plug (Ø10).
2. Remove the restrictor.
3.
To remove blockages, take the filter out
of the restrictor and clean or replace it.
Component Order no.
Filter 0550-0193
Restriction including
filter
1390-0186
7.2 Cleaning pneumatic con-
nections
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Unscrew plastic-rimmed filters. Clean or
renew them (order no. 0550-0213).
DANGER !
Restrictor
EXHAUST (venting)
IP 54
OUTPUT
Fig. 18: Restrictor at the back