Endress Hauser FMB50 Stainless Steel Level Sensor Hydrostatic Level Measurement Pressure Sensor

What is it

• The Deltapilot FMB50 is a hydrostatic (pressure-based) level transmitter sensor, part of the Deltapilot M line.
• It is used to measure level (or pressure) of liquids or paste‐like media by detecting the hydrostatic pressure at a point (usually near the bottom of a tank).

Key Features

Applications

• Used in both open and closed containers / tanks.
• Works with liquid and paste-like media. So even slurries or viscous fluids, as long as pressure transmission is possible.
• Not significantly affected by foam formation (which can cause issues for some other level sensors).
• Process and hygienic applications (e.g. food, pharma) where cleaning, material compatibility, and possibly certifications are important.
• It is compatible with safety-instrumented systems (SIL2).

Communication / Integration

• The device can output 4-20 mA with HART protocol.
• Also available with PROFIBUS PA and FOUNDATION Fieldbus interfaces, depending on configuration.
• Local display and menu-guided commissioning (for setting up zero, span, offsets etc.).

Advantages / What Makes It Good

• The sealed Contite cell means it handles condensate well; in cold or humid conditions, or where condensation inside sensor housings is an issue, this helps prevent measurement errors.
• Good accuracy, stability and minimal temperature effects.
• Versatile mounting options (threads, flush hygienic, flanges etc.) so it can be used in many tank types.
• Overpressure safety helps with process upsets. SIL2 capability helps in safety-critical environments.

Limitations / Considerations

• Because it measures hydrostatic pressure, fluid density matters: for a given pressure reading, the height (level) depends on density. If the density changes, you may need correction or use of dual sensors / differential setups.
• Installation must ensure that the sensor's zero point is well defined; avoid mounting in locations that cause turbulence, pressure shocks, or where foaming or sludge may accumulate on the membrane.
• For very high temperature, or extreme chemical compatibility, check material options and coatings.

Endress Hauser FMB50 level sensor

stainless steel hydrostatic level sensor

pressure sensor for level measurement

Endress Hauser FMB50 Stainless Steel Level Sensor Hydrostatic Level Measurement Pressure Sensor Images