Mounting Levelflex FMP55 HART
20 Endress+Hauser
• Within the measuring range, the probe must not get into contact with the pipe wall. If
necessary, use a center washer or centering star (see feature 610 of the product structure).
• Within the measuring range, the probe must not get into contact with the pipe wall. If
necessary, use a PFA centering star (see feature 610 of the product structure).
• Coax probes can always be applied if there is enough mounting space.
For bypasses with condensate formation (water) and a medium with low dielectric
constant (e.g. hydrocarbons):
In the course of time the bypass is filled with condensate up to the lower disposal and for
low levels the the level echo is superimposed by the condensate echo. Thus in this range
the condensate level is measured instead of the correct level. Only higher levels are
measured correctly. To prevent this, position the lower disposal 100 mm (4 in) below the
lowest level to be measured and apply a metallic centering disk at the height of the lower
edge of the lower disposal.
With heat insulated tanks the bypass should also be insulated in order to prevent
condensate formation.
For information on bypass solutions from Endress+Hauser please contact your Endress
+Hauser sales representative.
Non-metallic vessels
When mounting Levelflex in a non-metallic vessel, use a coax probe.
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