Radar Level Measurement Using VEGA VEGAPULS Sensors – How Does It Work?

Published 13 Dec 2016

By Chris Dodds : estimated reading time 5 minutes

VEGA – The Level Sensors & Measurement Specialists

VEGA VEGAPULS

Level Sensors

Radar Level Measurement for Liquids & Solids

A radar level measurement instrument uses microwave signals to determine the level of a liquid or solid.

The instrument is placed above the medium and emits a microwave signal which is reflected back to the sensor from the surface of the medium.

The radar level sensor uses this data to determine the distance to the product surface and is thus able to calculate the product level.

The radar level measurement technique is commonly used for measuring liquids and solids in the process industry – applications include process tanks, storage tanks and silos.

This non-contact form of level measurement, utilising VEGA VEGAPULS technology, mean the readings are not influenced by temperature, pressure or product properties.

VEGA VEGAPULS

Radar Level Sensors for Liquids

Two different emission frequencies are available for the level measurement of liquids.

The compact, high-frequency K-band sensors VEGAPULS 61, 62 and 63 are particularly suitable for applications in which very high precision is required.

Excellent signal focusing is achieved even with small antenna sizes.

The low-frequency C-band sensors VEGAPULS 65 and 66, on the other hand, are better able to penetrate foam and strong condensate deposits and are thus suitable for especially difficult process conditions.

vega VEGAPULS

Radar Level Sensors for Solids

The high-frequency K-band sensors VEGAPULS 67 and 68 are applied for level measurement in bulk solids. Due to the excellent signal focussing, internal silo installations or build-up on the walls have no influence on the measurement.

The highly sensitive electronics, especially adapted to the requirements of bulk solids measurement, enables reliable level measurement of widely different products up to 75 metres.

Radar Level Measurement

Radar Level Sensors

The following VEGA selection table provides an overview of the VEGAPULS radar level sensors available – contact T&D Process & Instrumentation to discuss your level, pressure and temperature measurement requirements.

Level Measurement Using Radar	VEGA VEGAPULS Radar Level Sensor	Application	Measuring Distance	Measuring Pressure	Process Temperature	Process Pressure
	VEGAPULS 61	Liquid level measurement	35 metres	–	-40 to 80°C	-1 to 160 bar
	VEGAPULS 62	Liquid level measurement	35 metres	–	-196 to 450°C	-1 to 160 bar
	VEGAPULS 63	Liquid level measurement (aggressive liquids and process conditions – hygienic and chemically stable applications)	35 metres	–	-196 to 200°C	-1 to 16 bar
	VEGAPULS 64	Liquid level measurement for storage tanks, dosing and process vessels with different process conditions or hygienic requirements	30 metres	–	-40 to 200°C	-1 to 20 bar
	VEGAPULS 65	Liquid level measurement of liquids despite foam – recommended for small process fittings	35 metres	–	-40 to 150°C	-1 to 20 bar
	VEGAPULS 66	Liquid level measurement – including strongly agitated media	35 metres	–	-60 to 400°C	-1 to 160 bar
	VEGAPULS 67	Liquid level measurement of bulk solids	15 metres	–	-40 to 80°C	-1 to 2 bar
	VEGAPULS 68	Liquid level measurement of bulk solids	75 metres	–	-196 to 450 °C	-1 to 160 bar

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