Endress+Hauser Levelflex M FMP40 Operating Instructions Manual page 27

Levelflex M FMP40 with HART/4...20 mA
Endress + Hauser
Installation in underground tanks
• Use coax probe for nozzles with large
diameters in order to avoid reflections at the
nozzle wall.
Measurement in corrosive fluids
For measurement in corrosive liquids use Levelflex M FMP41C. When using plastic tanks it is also
possible to mount the probe on the outside of the tank (see Installation instructions on → ä 30).
Levelflex measures the level through the plastic in both cases.
Installation in stilling well or bypass
• A rod probe can be used for pipe diameters
bigger than 40 mm.
• When installing a rod probe into a metallic
pipe with internal diameter of up to 150 mm,
you have all the advantages of a coax probe.
• Welded joints that protrude up to approx. 5
mm/0.2" inwards do not influence
measurement.
• If a rod probe is used, the probe length must
be 100 mm longer than the lower disposal.
• It must be ensured that the probe does not
come into contact with the side wall. Where
necessary, use a centering disk at the lower
end of the probe (→ ä 10 "Type of Probe:")
Mounting
L00-FMP4xxxx-17-00-00-yy-022
L00-FMP4xxxx-17-00-00-yy-023
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