Intelligent and durable electromagnetic flowmeters
April 2001
Flow Measurement & Control
Electromagnetic flowmeters use Faraday's principle of electromagnetic induction to measure the flow of conductive fluids. Toshiba has been marketing electromagnetic flowmeters since the late 1960s and as a result of a wealth of experience and considerable engineering expertise, have won accolades in all areas of industry.
A full line-up of products covering diameters from 2,5 mm to 3 m as well as various liner materials to accommodate diverse applications, making possible fluid measurements in almost any imaginable application.
Main applications
* Water and waste.
* Food, beverage and pharmaceutical.
* Liquids containing solid matter: concrete slurries; mortar.
* Steel, nonferrous metals: cooling water; metals processing; fertilisers and inorganic chemicals; aqueous acid/alkaline solutions.
* Pulp and paper: paper-making processes; pulp; polymer chemicals; chemical fibres.
LF400 and LF420 converters are provided with universal power supplies as standard equipment, enabling use anywhere in the world. They can be powered at 100 to 240 V a.c.; 24 V and 110 V d.c. power supplies are also available.
Enhanced resistance to harsh environments
* Ceramic measurement tubes improve resilience. The LF470 and LF410 detectors (2,5 to 100 mm) employ an alumina ceramic measurement tube, for improved resistance to abrasion, pressure and temperature. The ceramic measurement tube is surrounded by metal in a construction impervious to stresses in pipe installation and stresses caused by rapid changes in temperature.
* EPDM lining to improve ozone confinement. The EPDM lining material provides excellent ozone resistance, so that flowmeters can be used without hesitation in high-grade water treatment and other plants where ozone resistance is important.
Further improvements to the functional magnetic field distribution method have made possible accurate measurements of flow rates in partially filled pipes, beyond the capabilities of ordinary electromagnetic flowmeters.
Model LF490 is used for the measurement of flow under sanitary conditions. The flowmeters are designed with quick connect components for clean, easy handling.
TM Automation
(011) 867 2737
[email protected]
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