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Level limit switch
Series VN 4000
Technical Information / Instruction manual
page G
Mounting
Additional Safety Instructions for Hazardous Locations
Installation regulations
For devices to use in hazardous locations the respectively valid installation regulations must be
observed.
Sparks
The installation has to be done in a way mechanical friction or impact can not cause sparks between
the aluminium enclosure and steel.
Mounting instructions
Oscillating rods
Do not bend, shorten or extend the oscillating rods since this will destroy the device.
Rotatable housing and
orientation marking of
oscillating rods
The housing can be rotated against the
threaded connection after mounting.
Direction of the cable
glands
When the unit is mounted from the side, ensure, that the cable glands faces downwards and are closed
to avoid water penetration into the housing.
Sealing
Seal the process thread with Teflon tape in case of process pressure
Switching point
Heavy bulk material -> the signal output switches when the oscillating rods are covered a few mm
Light bulk material -> the signal output switches, when the oscillating rods are covered a few cm
Threaded connection
Orientation marking of oscillating
rods shows the orientation of the
oscillating rods after mounting.
Housing
Vibranivo
®
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VN 4000 a
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