April 2002Maintenance, Test & Measurement, Calibration
One of the most efficient ways of measuring the level of water, wastewater and sewerage is by ultrasonic (or time of flight) technology.
There are good, solid reasons for using this technology in these industries. The ultrasonic sensor has a measuring range of up to 60 m and so has no direct contact with the measured product. The product cannot contaminate or inflict mechanical wear on the sensor. Ultrasonics are unaffected by product features such as density, conductivity or dielectric constant.
Vega Instruments, one of the world's leaders in level measurement technology, has developed the Vegason 71-D especially for use in water, wastewater and sewerage applications. This level-measuring sensor is designed for use in weir control in sewerage plants and power stations, as well as for lock gate control. The Vegason-71D is also used extensively in open channel flow systems.
The Vegason 70 series of sensors has discreet transducers, which can be mounted up to 1 km from the control module. The processing electronics, display, power supply unit and all adjustment elements are located in a separate housing. This kind of configuration is mainly used for independent single measurements. The instruments are suitable for average measuring ranges of up to 30 m. The picture shows the Vegason-71D measuring the inlet in a Venturi-flume of a sewerage plant
VEGA handles the pressures of water treatment systems VEGA Controls SA
Pressure Measurement & Control
A water treatment system for a major metropolitan area in the Midwestern United States demands careful monitoring and management of processes across its sprawling network. Choosing VEGA for its process automation needs meant more than just obtaining precise and reliable pressure sensors.
Read more...VEGA takes the pressure out of water pressure measurement VEGA Controls SA
Editor's Choice
Water treatment systems in metropolitan areas require careful monitoring and management processes across widespread networks. However, process plants choosing VEGA for their process automation know that the company offers more than just precise and reliable pressure sensors and instrumentation.
Read more...Collect data three times faster SKF South Africa
Maintenance, Test & Measurement, Calibration
SKF has extended its renowned Microlog Analyzer family of data collection devices with the addition of the Microlog Analyzer dBX. Currently SKF’s most powerful diagnostic tool, this cutting-edge device redefines diagnostic capabilities, enabling users to take measurements three times faster than its predecessor.
Read more...The criticality of maintenance in the water and wastewater segment Schneider Electric South Africa
Maintenance, Test & Measurement, Calibration
In a time of water shedding, climate change and ageing infrastructure, the importance of maintenance and support in the water and wastewater segment cannot be overstated.
Read more...Sensor technology for cartonboard machine for paper and packaging VEGA Controls SA
Pressure Measurement & Control
Paper and packaging specialist, LEIPA undertook a comprehensive modernisation project, combining three stock preparation lines into one, and making investments in new plant components and extensive automation technology. Because of the good experiences the company had already had with VEGA sensors, those responsible for planning and maintenance decided in favour of the VEGABAR 82 pressure transmitter as the standard instrument for level and pressure measurement in the new stock preparation system.
Read more...Quality test tools save costs at pulp and paper mill Comtest
Editor's Choice Maintenance, Test & Measurement, Calibration
A case study on how preventive maintenance and a few good test tools avoided unnecessary motor replacements at a pulp and paper company.
Read more...The logical solution to oil and gas industry corrosion
Maintenance, Test & Measurement, Calibration
The consequences of corrosion in the oil and gas industry can be astronomical. The simple culprit is metal reacting with oxygen and moisture, degrading it back to its natural state.
Read more...Lube tip: foaming is affected by oil level Wearcheck
Maintenance, Test & Measurement, Calibration
In a circulating system, it is crucial to check the oil level before introducing anti-foam agents to address a foaming problem.
Read more...Level measurement under extreme plant processing conditions VEGA Controls SA
Level Measurement & Control
Level measurement in LNG and LPG processes is about answering the simple question: “How much product is in the tank?” However, obtaining an exact value is not easy. The products are often under pressure, cryogenic, and highly explosive. Sensors from Vega have been operating successfully in all stages of the LNG/LPG process for many years.
printer friendly version