Cover article
Point level measurement in the energy sector: Reliable switching for critical applications
FEATURES: Control systems + automation Energy management + energy efficiency Safety of plant, equipment + people
I n the energy sector, point level measurement plays a critical role in plant safety and equipment protection. While continuous measurement provides process visibility, point level detection delivers decisive action, preventing overfills, protecting pumps from dry running and ensuring reliable operation under demanding conditions. Across Sub-Saharan Africa’s energy landscape, from coal-fired power plants to renewable and emerging energy technologies, vibrating point level switches have proven to be a robust and dependable solution. Their product-independent operation, millimetre-precise switching accuracy and minimal maintenance requirements make them well suited to harsh industrial environments. Liquid applications: safety and process reliability The VEGASWING 63 vibrating level switch provides reliable point level detection for liquids with densities between 0.5 and 2.5 g/cm³. A key advantage is its tube extension, which allows the switching point to be positioned up to six metres from the installation location, offering flexibility in tanks and vessels where the ideal switching point cannot be achieved with a compact sensor. The instrument delivers consistent switching performance regardless of mounting position or medium properties, making it suitable for overfill protection in fuel and oil storage tanks, providing dry-run protection for pumps and empty/full vessel detection in auxiliary systems. The product-independent switching point eliminates the need for calibration with the process medium, reducing commissioning time and maintenance effort. For high-temperature and high-pressure applications, the VEGASWING 66 offers dependable point level detection in demanding process environments. Designed for use with liquids with densities from 0.42 to 2.5 g/cm³, it is available in a compact version or with a tube extension of up to three metres. Typical applications include
six metres enables precise switching point placement in silos, bunkers and transfer points. Its smooth, seamless rod design prevents
Point-level measurement: Proven technology for energy applications
material build-up, ensuring reliable operation in coal handling and biomass-related applications. Medium-independent setup and low maintenance requirements make this switch well suited for use in harsh, dust-laden environments. Powdered and fine-grained solids For powdered and fine-grained bulk solids such as fly ash and fine coal dust, the VEGAWAVE 63 vibrating fork level switch delivers reliable detection for materials with densities as low as 8 g/l. The robust tuning fork ensures stable switching performance, even with adhesive or abrasive products. With tube extensions up to six metres, the switching point can be positioned precisely to suit process requirements. Proven technology for energy applications Vibrating point level switches are widely used in the energy sector due to their reliability, simplicity and durability. Key benefits include millimetre-accurate switching, independence from product properties, fast commissioning and low maintenance. As the energy sector across Sub-Saharan Africa continues to evolve, dependable point level detection remains essential for operational safety and continuity. VEGA’s VEGASWING, VEGAVIB and VEGAWAVE instruments provide robust, application-driven solutions for both liquid and bulk solid processes throughout the energy value chain.
For more information contact VEGA Controls (Pty) Ltd. Tel: +27 (0)11 795 3249
Email: info.za@vega.com Website: www.vega.com
steam generators, condensate tanks and auxiliary vessels in thermal power plants. Continuous sensor self-monitoring and robust construction ensure reliable operation and enhanced safety, even under extreme conditions. Bulk solids: coal and ash handling applications The VEGAVIB 63 vibrating rod level switch is designed for use with granular and coarse-grained bulk solids with densities as low as 20 g/l. A tube extension of up to
VEGA’s vibrating point level switches have proven to be robust and dependable in coal-fired power plants as well as in new renewables applications.
APRIL 2026 Electricity + Control
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