Hydrostatic Level

Hydrostatic Level

Hydrostatic level measurement provides continuous level indication in liquids by measuring the pressure created by the liquid column at a reference point. It can be implemented in tanks, sumps, and wells using submersible probes or externally mounted transmitters, and Endress+Hauser positions Deltapilot and Waterpilot devices as core solutions for these duties.

Sensor selection is driven by moisture exposure, condensate formation, and chemical conditions. The Contite concept protects the measuring element and is hermetically sealed between the process membrane and measuring membrane, making it insensitive to condensation and aggressive gases. Ceramic, oil‑free cells act as dry sensors in which process pressure deflects a robust ceramic diaphragm and a capacitance change is measured.

Benefits center on stability in wet service. Condensate‑proof Contite designs support high plant safety, with reproducibility and long‑term stability maintained even after temperature shocks. Ultra‑pure ceramic sensing elements provide strong chemical compatibility and mechanical stability; robust ceramic membranes can include breakage detection and vacuum capability.

Device configurations cover both process and environmental requirements. Waterpilot transmitters are used in wells, storage tanks, and surface waters and can be certified for drinking water; options may include integrated temperature measurement and density‑compensated level functions with HART output, with variants suited for wastewater, sludges, or saltwater exposure. Deltapilot transmitters are applied in open or closed containers, including paste‑like media, and are noted as being unaffected by foam formation.

Typical applications span municipal and industrial water/wastewater, food and beverage, and general process industries. Installations commonly include water towers and reservoirs, dams and gauging stations, lakes and rivers, and process vessels where reliable inventory indication and stable control inputs are required. Hydrostatic instruments are also used for trend‑based leak detection and for controlled fill/empty operations where repeatability and long‑term drift performance matter.

Field Instruments & Controls, Inc. an exclusive authorized representative of sales and service for Endress+Hauser.