Endress+Hauser Levelflex FMP56 Operating Instructions Manual page 19

Levelflex FMP56, FMP57 FOUNDATION Fieldbus
Endress+Hauser
Additional conditions
• When mounting outdoors, a weather protection cover (1) can be used to protect the
device against extreme weather conditions.
• In metallic vessels, preferably do not mount the probe in the center of the vessel (2), as
this would lead to increased interference echoes.
If a central mounting position cannot be avoided, it is essential to perform interference
echo suppression (mapping) after commissioning the device.
• Do not mount the probe in the filling curtain (3).
• Avoid buckling the rope probe during installation or operation (e.g. as a result of product
movement against silo wall) by selecting a suitable mounting location.
• The probe must be checked regularly for damage during operation.
In the case of freely suspended rope probes (probe end not fixed at the bottom), the
distance between the probe rope and internal fittings, which can change due to the
movement of the product, must never be less than 300 mm (12 in). Occasional
contact between the probe end weight and the cone of the vessel, however, does not
influence the measurement provided that the dielectric constant is at least DC = 1.8.
When the housing is mounted in a recess (e.g. in a concrete ceiling), observe a
minimum distance of 100 mm (4 in) between the cover of the connection
compartment/electronics compartment and the wall. Otherwise the connection
compartment/electronics compartment will not be accessible after installation.
Mounting
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