Endress+Hauser Levelflex FMP51 Technical Information page 67

Levelflex FMP51, FMP52, FMP54
Endress+Hauser
Replacing a displacer system in an existing displacer chamber
FMP51 and FMP54 are a perfect replacement for a conventional displacer system in an existing
displacer chamber. Endress+Hauser offers flanges that suit Fischer and Masoneilan displacer
chamber for this purpose (special product for FMP51; feature 100, options LNJ, LPJ, LQJ for FMP54).
Thanks to menu-guided local operation, commissioning the Levelflex only takes a few minutes.
Replacement is also possible when partially filled, and wet calibration is not required.
Your benefits:
• No moving parts, thus zero-maintenance operation.
• Not sensitive to process influences such as temperature, density, turbulence and vibrations.
• The rod probes can be shortened or replaced easily. In this way, the probe can be easily adjusted on
site.
1 Flange of the displacer chamber
Planning instructions:
• In normal cases, use a rod probe. When installing into a metallic displacer chamber up to 150 mm,
you have all the advantages of a coax probe.
• It must be ensured that the probe does not come into contact with the side wall. Where necessary,
use a center washer or centering star at the lower end of the probe (feature 610 of the product
structure).
• The center washer or centering star must be adapted as accurately as possible to the internal
diameter of the displacer chamber to also ensure perfect operation in the area of the probe end.
Additional information on interface measurement
• In the case of oil and water the centering disk or centering star should be positioned at the lower
edge of the lower disposal (water level).
• The pipe may not exhibit any steps in diameter. Use the coax probe where necessary.
• 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 center washer or centering star at the end of the probe.
• A plastic centering star has to be used for interface measurement (feature 610, options OD and
OE).
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