Endress+Hauser Levelflex FMP56 Operating Instructions Manual page 17

Levelflex FMP56, FMP57 HART
Endress+Hauser
Additional mounting requirements
• 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 weight and the cone of the vessel, however, does not
influence the measurement provided that the relative permittivity is at least ε
When mounting the housing 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.
6.1.2 Mounting under confined conditions
Mounting with remote probe
The device version with a remote probe is suitable for applications with restricted
mounting space. In this case, the electronics housing is mounted at a separate position
from the probe.
A
C
r = 100 (4)
min
A Angled plug at the probe
B Angled plug at the electronics housing
C Length of the remote cable as ordered
B
6 Nm
(4.42 lbf ft)
r = 100 (4)
min
6 Nm
(4.42 lbf ft)
Installation
= 1.8.
r
6 Nm
(4.42 lbf ft)
C
6 Nm
(4.42 lbf ft)
A0014794
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