Installation Solicap M FTI55, FTI56
24 Endress+Hauser
3.9.4 Preparing to install rope probes FTI56
Correct installation
a. Solicap M FTI55, FTI56 with inactive length in the event of condensation and material
buildup on the silo roof.
b. At the correct distance from the silo wall, the material inlet and the material outlet.
Close to the wall, for reliable switching in the case of a low dielectric constant (not for
pneumatic filling).
For pneumatic filling, the distance from the probe to the wall should not be too short, as the
probe may swing.
Incorrect installation
c. If too close to the material inlet, inflowing bulk solids may damage the sensor.
If close to the center of the material outflow, high tensile forces at this point may cause the
probe to break off or subject the silo roof to excessive strain.
d. The threaded coupling is too long. This may cause condensation and dust to settle inside which
may result in error switching.
e. If too close to the silo wall, the probe may swing slightly against the wall or come in contact
with buildup.This can result in error switching.
Correct installation Incorrect installation
TI418F13
In a silo with metal walls
Distance D between the probe and the wall approx. 10 to 25 % of the silo diameter