SICK LFV 310 Sicherheitshinweise Seite 21

atmosphere is present.
When wiring the connection line to the "Ex-d" terminal compartment, it must be sufficiently secured
against damage and in conformity with EN 60079-14.
The connection cables, the cable entries and the closing screws or the pipeline sealing facilities
must be suitable for the lowest ambient temperature.
The cover of the "Ex-d" connection compartment must be screwed in completely before commis-
sioning and secured by screwing out the lid locking screw all the way to the stop.
Unused openings must be sealed according to EN 60079-1 paragraph 11.9.
The cover of the "Ex-d" connection compartment is provided with the warning label "Do not open
when an explosive gas atmosphere is present".
Single chamber housing with "Ex-d" connection compartment
1 Thread protection
2 Locking screw of the lid
3 Screw plug
4 Marking of the thread
5 "Ex-d" connection compartment with electronics module
6 External ground terminal
12 Removing and replacing the red threaded/dust cover
The red thread or/dust covers screwed in when the instrument is shipped (depending on the ver-
sion) must be removed before setup. The openings must be closed before setup by a way approved
for the flame proofing. Approved and suitable cable glands or blind plugs must be installed accord-
ing to the supplied documents.
Before setting up LFV 310.D*********, LFV 330.D********* you have to check if all other openings are
closed in a way appoved for the ignition protection.
LFV 310, 330
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