Level

Level

Level measurement encompasses continuous level, point level, and (where required) interface and density-related measurements in vessels, tanks, silos, and movable containers. It is commonly applied to liquids, pastes, bulk solids, and liquefied gases where constant product quality, plant safety, and economic efficiency are key outcomes. Endress+Hauser frames level measurement around these operating priorities and the wide range of real-world vessel geometries and process conditions.

Because no single principle covers every combination of medium, vessel, and constraints, level portfolios are typically organized by measurement physics. Endress+Hauser’s level category includes radar (non-contact), guided radar, ultrasonic, capacitance, hydrostatic, conductive, float switch, radiometric, paddle switch, servo, electromechanical, microwave barrier, and vibronic point level detection—supporting both continuous measurement and discrete alarms.

Primary benefits include inventory visibility, overfill prevention, dry-run protection, improved batch consistency, and reduced risk from misrouting or unintended transfers. Non-contact radar and ultrasonic solutions can mitigate wear and contamination in aggressive or coating services, while guided-wave, vibronic, conductive, or capacitance approaches can provide robust point detection in challenging applications. Compact, hygienic-oriented solutions are also highlighted within the Endress+Hauser portfolio for space-constrained and sanitary installations.

Typical applications span raw-material storage, day tanks, reactors, separators, neutralization basins, clarifiers, sumps, and bulk solids silos. Level measurement is integral to logistics optimization for stored liquids and powders, to safeguards for high-level shutdown and spill prevention, and to stable upstream/downstream control in blending, filtration, and packaging operations.

Selection and performance depend on medium properties (dielectric, conductivity, bulk density), mechanical effects (agitation, turbulence, foam), and vessel details (nozzles, obstructions, cone bottoms, internal structures). Environmental conditions such as vapor space composition, dust, temperature gradients, and pressure cycles should be considered alongside proof-test and functional-safety needs for alarms. Installation best practices and diagnostics strategy typically determine whether the measurement remains reliable as conditions drift over time.

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