Interface Level Measurement – Description

Interface Level Measurement is used to measure the level of separation (interface) between two immiscible liquids of different densities, such as oil and water, inside a tank or vessel. The instrument detects the boundary layer where the two liquids meet and continuously monitors its position.

This measurement is essential in applications where accurate separation of liquids is required, including oil-water separators, chemical processing vessels, desalters, and storage tanks. Various technologies such as Guided Wave Radar (GWR), Differential Pressure (DP) Transmitters, Displacers, and Capacitance Level Transmitters are commonly used for interface level measurement.

Key Features

• Accurate detection of liquid-liquid interface
• Continuous real-time measurement
• Suitable for oil-water and other immiscible liquid applications
• Reliable operation in process vessels and separators
• Available with 4-20 mA, HART, Modbus, and Foundation Fieldbus outputs
• Low maintenance and high process reliability

Applications

• Oil & Gas Separators
• Crude Oil Treaters
• Chemical Process Tanks
• Water Treatment Plants
• Storage Tanks
• Petrochemical Industries