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Nivocompact FTC 731
Silo Material
Installation Point
Installation in the Open
Fig. 6
General information for installing the
capacitive level limit switch Nivocompact
FTC 731.
Correct Installation
Incorrect Installation
Minimum Distances
8
Installation
Project Planning
The Nivocompact FTC 731 can be installed in silos made of various
materials (e.g. metal, plastic, concrete).
Note the angle of material flow or the outlet funnel when determining the
measuring point.
The Nivocompact switches (also with bulk solids with very small dielectric
constants) when the probe end is covered by a few centimetres of material
or when the material descends a few centimetres below the probe end.
The filling stream should not be directed onto the probe.
When installing in the open, the protective sun cover as an accessory
protects the Nivocompact with the aluminium housing from excessive
temperatures and from condensation which may form in the housing due to
large temperature variations.
Correct Installation
a) Protective sun cover for mounting in the open.
b) Heat insulation on the silo wall with high temperatures in the silo.
c) Incoming material can damage the probe.
The filling curtain can cause error switching.
Cable gland pointed upwards can allow moisture to enter.
A minimum distance of 200 mm between the probe ends of two
Nivocompact FTC 731 instruments must be maintained to ensure
that there is no mutual interference.
The distance between the probe end of a Nivocompact FTC 731 and the
probe end a Nivocompact FTC 831 must be at least 500 mm.
To ensure that this distance is maintained when the rope probe of the
FTC 831 is swinging, a greater distance than this is recommended
especially with pneumatic systems.
The distance between the probe end of a Nivocompact FTC 731 and a
metal wall must be at least 120 mm.
Installation
Incorrect Installation
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