Endress+Hauser Levelflex FMP51 Modbus Technical Information page 25

Levelflex FMP51 Modbus
Endress+Hauser
Additional conditions
• When mounting in the open, a weather protection cover (1) may be installed 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 can not be avoided, it is crucial to perform an interference echo
suppresion(mapping) after the commissioning of the device.
• Do not mount the probe in the filling curtain (3).
• Avoid buckling the rope probe during installation or operation (e.g. through product movement
against silo wall) by selecting a suitable mounting location.
With suspended rope probes (probe end not fixed at the bottom) the distance between the
probe rope and internal fittings in the tank must not fall below 300 mm (12") during the entire
process. A sporadic contact between the probe weight and the cone of the vessel, however, does
not influence the measurement as long as the dielectric constant of the medium is at least DC =
1.8.
When mounting the electronics housing into a recess (e.g. in a concrete ceiling), observe a
minimum distance of 100 mm (4 inch) between the cover of the terminal compartment /
electronics compartment and the wall. Otherwise the connection compartment / electronics
compartment is not accessible after installation.
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