Displacer Level Transmitter – Description

A Displacer Level Transmitter is a continuous level measurement instrument that operates on the buoyancy principle (Archimedes’ Principle). A cylindrical displacer is suspended in the process liquid, and the buoyant force acting on it changes proportionally with the liquid level. This change in force is detected by a torque tube or force-balance mechanism and converted into a standard electrical output signal, typically 4-20 mA, for monitoring and control.

Displacer Level Transmitters are widely used for measuring liquid level, interface level, and density in tanks, vessels, separators, and pressure vessels. They are particularly suitable for applications involving high temperature, high pressure, and varying process conditions where conventional float-based devices may not be suitable.

Key Features

• Continuous level and interface level measurement
• Based on proven buoyancy measurement technology
• Suitable for high-pressure and high-temperature applications
• Accurate and reliable performance
• Available for liquid level, interface level, and density measurement
• 4-20 mA with HART communication options
• Rugged construction for harsh industrial environments
• Suitable for hazardous area installations
• Excellent long-term stability and repeatability
• Low maintenance requirements