Product Overview

The VSAN Capacitance Level Switch is a highly reliable point level detection instrument designed to detect the presence or absence of liquids, slurries, powders, granules, pellets, and bulk solids in tanks, silos, hoppers, pipelines, and process vessels. Based on advanced Capacitance Sensing Technology, the switch provides accurate and dependable high-level, low-level, or intermediate-level detection for process control, overflow prevention, dry-run protection, and automated material handling systems.

Unlike mechanical float switches, the VSAN Capacitance Level Switch contains no moving mechanical parts, making it highly suitable for applications involving viscous liquids, sticky materials, corrosive chemicals, powders, and abrasive bulk solids. Its robust construction and solid-state electronics ensure long service life with virtually maintenance-free operation, even under harsh industrial conditions.

The operating principle is based on the variation in electrical capacitance between the sensing probe and the vessel wall (or reference electrode). When the process material comes into contact with the sensing probe, the dielectric constant changes, causing a measurable change in capacitance. The transmitter continuously monitors this change and activates the output relay when the preset switching point is reached.

The VSAN Capacitance Level Switch is suitable for a wide range of media including water, wastewater, chemicals, acids, alkalis, diesel, lubricating oil, edible oil, solvents, pharmaceutical liquids, milk, beverages, cement, fly ash, coal dust, plastic granules, grains, sugar, flour, powders, pellets, and other conductive or non-conductive materials.

Manufactured using premium-quality materials such as SS316L Stainless Steel, PTFE, PFA, PVDF, Ceramic Insulation, and corrosion-resistant engineering plastics, the switch offers excellent resistance to corrosion, abrasion, high temperatures, and aggressive chemicals. It is available with Rigid Rod, Flexible Cable, Fully Insulated Probe, Bare Probe, Rope Type, and High Temperature Probe configurations to suit different applications.

The VSAN Capacitance Level Switch provides Relay Output (SPDT), PNP/NPN Transistor Output, and optional NAMUR Output, allowing seamless integration with PLC, DCS, SCADA Systems, Alarm Panels, Pump Controllers, Solenoid Valves, Industrial Automation Systems, and Process Control Equipment.

Advanced electronic circuitry incorporates automatic sensitivity adjustment, digital signal processing, temperature compensation, false signal rejection, LED status indication, self-diagnostic functions, and EMI/RFI protection, ensuring reliable switching performance under varying process conditions.

Designed for demanding industrial environments, the switch features a rugged IP66/IP67/IP68-rated enclosure with optional Explosion-Proof (Ex-proof) versions for hazardous area installations. Its compact design, easy installation, and minimal maintenance requirements make it an ideal choice for continuous industrial operation.

The VSAN Capacitance Level Switch is widely used in Oil & Gas Industries, Chemical Processing Plants, Petrochemical Industries, Water & Wastewater Treatment Plants, Cement Plants, Steel Plants, Mining Industries, Food & Beverage Processing, Pharmaceutical Manufacturing, Power Plants, Paper & Pulp Industries, Plastic Industries, Marine Applications, Storage Silos, OEM Equipment, and Industrial Automation Systems, where dependable point level detection is essential.

With its advanced capacitance sensing technology, rugged construction, and reliable switching performance, the VSAN Capacitance Level Switch provides a cost-effective and efficient solution for industrial level control applications.