Special Information On Interface Measurement - Endress+Hauser Levelflex M FMP40 Operating Instructions Manual

Levelflex M FMP40 with HART/4...20 mA
!
Endress+Hauser
3.5

Special information on interface measurement

Installation in horizontal cylindrical, upright and underground tanks
• Use coax probes or rod probes in the bypass/stilling well. A segmented probe is available as a
special version for longer measuring ranges.
• Any distance from the wall is possible for coax probes or rod probes in the stilling well. In the case
of rod probes, it must be ensured that the probe does not come into contact with the wall.
Installation in stilling well or bypass
• A rod probe can be used for pipe diameters
bigger than 40 mm.
• Rod probe installation can take place up to a
diameter size of 100 mm. In the event of
larger diameters, a coax probe is
recommended.
• Welded joints that protrude up to approx.
5 mm inwards do not affect the measurement.
• The pipe may not exhibit any steps in
diameter.
• If a rod probe is used, the probe length must
be 100 mm longer than the lower disposal.
• In the case of rod probes, it must be ensured
that the probe does not come into contact
with the wall. If necessary, use a centering
disk at the end of the probe.
!
Note!
A plastic centering disk has to be used for
interface measurement (see Accessories
→ ä 64).
Note!
Rope and rod probes can only be freely installed in the tank under certain circumstances - please
contact your Endress+Hauser office.
Installation
L00-FMP4xIxx-17-00-00-xx-002
L00-FMP4xIxx-17-00-00-xx-003
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