Level

Continuous Level Measurement & Point Level Detection in Liquids & Bulk Solids

Endress+Hauser’s level portfolio spans continuous measurement and point level detection for liquids and bulk solids. Technologies include radar (Micropilot, Levelflex), ultrasonic (Prosonic), hydrostatic/DP (Deltapilot, Deltabar), servo (Proservo), radiometric (Gammapilot), and electromechanical (Silopilot). FLEX tiers map capability to risk.

Free‑space radar offers non‑contact, long‑range measurement for storage tanks, process vessels, and silos. Micropilot handles vapor, agitation, and changing conditions in liquids and solids. Connectivity—Bluetooth®, HART, PROFIBUS/FOUNDATION Fieldbus, and PROFINET over Ethernet‑APL—eases integration and device management.

Guided wave radar applies radar accuracy in tight or turbulent applications. Levelflex rod, cable, and coax probes measure reliably in tall or narrow vessels, bypasses, and stilling wells. Interface algorithms track phase boundaries in separators without density compensation; long cable probes reach deep sumps.

Ultrasonic (Prosonic) is a cost‑effective non‑contact choice for open basins, headworks, lift stations, and clarifiers. Hydrostatic transmitters (Deltapilot) provide robust submerged measurement for clean/dirty liquids, digesters, and inventory tanks with piezoresistive cells tolerant of fouling.

Differential pressure level (Deltabar) suits closed, pressurized, or boiling services such as steam drums and high‑temperature vessels. Electronic DP options eliminate impulse lines, cut maintenance, and improve low‑span performance while preserving familiar 4–20 mA/fieldbus behavior for brownfield upgrades.

For extremes where access is limited or media are hot, viscous, abrasive, or under vacuum, radiometric (Gammapilot) measures through vessel walls in liquids and solids. High‑accuracy servo gauges (Proservo) serve custody transfer and inventory control. Electromechanical Silopilot delivers continuous level in tall, dusty silos.

Point-level devices complement transmitters for alarms, overfill, and pump protection. Vibronic forks (Liquiphant) offer SIL2/3 safety, guided proof‑testing, and Heartbeat™ diagnostics. Also available: capacitive & conductive probes (Liquipoint), floats (Liquifloat), rotary paddles (Soliswitch), and microwave barriers (Soliwave).

Together these families help designers minimize risk and lifecycle cost while giving operators clear, stable signals. Multi‑protocol connectivity and Bluetooth commissioning accelerate integration; FLEX tiers match performance to need. Typical uses include storage tanks, reactors, separators, sumps, silos, and tank farms.

TriNova, your trusted Endress+Hauser Representative since 2002.