Level Measurement & Control


Latest Articles

Custody transfer in tank gauging: a presentation to the Test and Measurement conference held in Kempton Park 2007
February 2008, Endress+Hauser South Africa
There are numerous formats required that are governed by local laws and conventions, and tank peculiarities

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Pressure sensor measures levels
February 2008, VEGA Controls SA
The VEGAWELL 51 represents a new generation of suspension pressure transmitters from Vega. The instruments are used for water and waste water applications, eg, for hydrostatic level measurement in vessels ...

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Safety in the cargo tank
February 2008, VEGA Controls SA
The plics line of sensors, developed by Vega, offers a standardised housing, indicating and adjustment concept. The compact plics sensors enable a central installation of level, pressure and switching ...

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The measure of all things radar
February 2008, KROHNE
The new radar level measuring devices OPTIWAVE and OPTIFLEX, from Krohne, are not only cutting-edge in terms of application reliability, but have also proved their worth in the field. Both devices have ...

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Radar level transmitters support Profibus
February 2008, Siemens South Africa
Siemens Automation and Drives (A&D) adds Profibus PA interfaces to the Sitrans LR250 and Sitrans LR460 radar level transmitters. This allows for a more flexible approach to diagnostic management. It provides ...

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Level sensor for difficult applications
February 2008, Siemens South Africa
Sitrans LR460 is the new continuous radar level measurement transmitter from Siemens Automation and Drives (A&D). The unit operates at 24 GHz utilising frequency-modulated continuous wave radar technology ...

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Boilerwater level control
December 2007, Spirax Sarco South Africa
The Spirax Sarco LC2500/LP20 provides on or off feed-water pump control with high and low level alarm indication. Level is measured using via the LP20 capacitance probe and appropriate pump switching ...

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Level switch prevents spillages
November 2007, Endress+Hauser South Africa
Pollution caused by the inadequate storage of oil in above ground tank installations can result in expensive consequences, with the cost of spillage clean-ups ranging between R100 000 and R2,5 million. ...

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Radiometric level gauges for up to 8 m
November 2007, Mecosa
The Tower-Sens LB 490 from Berthold Technologies is a rod detector for continuous level measurements. It allows measurement of level over a range of up to 8 m with only one model of electronics and one ...

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Radar level suits viscous media
November 2007, NIC Instruments
Magnetrol's Enhanced Eclipse Model 705 liquid level transmitter is now available with a coaxial GWR (guided wave radar) probe suitable for measuring liquids of up to 1500 cP viscosity. This enlarged coaxial ...

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Measurement of lime levels in drinking water and wastewater
October 2007, KROHNE
As lime is a product derived from the Earth, it is fitting that many of its uses also benefit the Earth. In fact, the second leading use of lime is in environmental applications, including drinking water ...

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Level control in cement production
August 2007, VEGA Controls SA
Vega sensors have been installed at several points in the plant and are proving more than capable of performing under these arduous conditions

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A technical insight into some factors impacting radar level measurement
August 2007, KROHNE
A decisive factor for measuring accuracy, and in particular stability of measured values, is the generation of a highly stable crystal-controlled transmit frequency

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Level gauge has mechanical and electronic displays
August 2007
The Afriso-Euro-Index Unimes E tank contents gauge is designed for continuous level indication in tanks (tank height or diameter from 0,9 to up to 2,0 m) containing light heating oil EL, diesel ...

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Level sensor control for conductive media
August 2007
Level control of extremely conductive media can be a problem as products that may appear to be non-adhesive can often leave an almost invisible but highly conductive film on the sensor body. The result ...

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Single rod limit switch for bulk solids
August 2007, Endress+Hauser South Africa
The Endress+Hauser Soliphant T FTM20/21 is a reliable and robust single rod vibration limit switch. The tilted piezo drive safeguards the sensor's performance. The design decouples the process connection ...

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Echotel's cool level sensor
August 2007, NIC Instruments
The new Echotel 961 liquid level switch extends its sensor offering with a new stainless steel sensor that handles process temperatures down to -80°C. The new sensor is made of 316/316L stainless steel ...

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Baumer has sound approach to aggressive media
August 2007, Temperature Controls
Baumer Electric has created an ultrasonic sensor that has the ability to securely and reliably detect media and objects regardless of their surface characteristics and colour. Because of this ability, ...

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Tank level system is plain sailing
August 2007, VEGA Controls SA
Level instrumentation company, Vega, has developed a tank measuring system for logging tank contents on ships. The system, which comprises a switching cabinet with sensor supply and signal processing ...

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Capacitance level measurement is cost-effective
August 2007, Endress+Hauser South Africa
Capacitance level measurement has established a firm position in process instrumentation during recent decades and still offers decisive advantages today. The Liquicap T FMI21 from Endress+Hauser is ...

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