Endress+Hauser Levelflex M FMP 40 Operating Instructions Manual page 21

Levelflex M FMP 40 with PROFIBUS-PA
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, it is possible to install a rod probe in a closed
plastic pipe with a diameter of up to approx. 50 mm. When using plastic tanks it is also
possible to mount the probe on the outside of the tank (see Installation instructions on
Page 24). 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 up to 150 mm, for diameters
above that the flange with horn adapter
recommended.
• 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.
3 Mounting
21