
Magnetic Float Level Switches of M&I (Mastering & Innovation for Electromechanical solutions)
A magnetic float level switch is an essential device used in various industries to monitor and control the liquid levels within tanks, reservoirs, or other containment vessels. The fundamental principle behind this device is straightforward yet effective: it utilizes a float containing a magnet that moves in response to the liquid level. This movement triggers a reed switch or similar mechanism, opening or closing an electrical circuit that can be used to activate alarms, pumps, valves, or other control systems.
These switches are integral to maintaining operational efficiency and safety in processes where precise liquid level control is critical. From preventing overflows and dry running of pumps to ensuring the right levels in beverage production or chemical processing, magnetic float level switches are invaluable.
Key Benefits of AWAM Magnetic Float Level Switches
Magnetic float level switches offer several advantages that make them a popular choice in diverse applications:
High Reliability: Unlike some electronic sensors that may suffer from calibration drift or require frequent maintenance, magnetic float level switches are highly reliable due to their simple mechanical operation. Their performance is not affected by factors such as temperature, pressure, or the chemical composition of the liquid. Also, does not affect by EM-interferences
Wide Range of Applications: These switches can be used with a variety of liquids, including but not limited to water, oils, chemicals, beverages, and even sewage. This versatility makes them suitable for use in industries ranging from water treatment and chemical manufacturing to food and beverage production.
Minimal Maintenance: The robust design of magnetic float level switches ensures long-lasting performance with minimal upkeep. The lack of moving parts that come into contact with the liquid (aside from the float itself) reduces wear and tear, leading to fewer maintenance requirements.
Safety in Hazardous Environments: Because they operate without needing external power to the sensor, magnetic float switches are inherently safe for use in hazardous or explosive environments. The absence of electrical components in contact with the liquid reduces the risk of sparks and other safety hazards.
AWAM Magnetic Float Level Switches are innovative devices designed for effective level detection, level switching, and multipoint control tasks across various applications. Their robust design and reliable operation make them a preferred choice for monitoring liquid levels in different environments, from industrial factories to residential settings.
Operating Principle
The AWAM Magnetic Float Level Switch operates based on the principle of detecting changes in liquid levels. As the liquid level rises or falls, a float, equipped with built-in magnets, moves vertically along a guide probe. This movement triggers (magnetically not mechanically) the reed switches integrated within the probe, providing a precise and reliable indication of the liquid level.
Main Components
1. White PVC Connection Housing: This housing contains the connection terminals and serves as reliable suspension technique for the device in various tank types. Connection cable exits within the housing and connected through a UL3/4" watertight steel gland.
2. uPVC Probe Tube: This tube houses the reed switches, which are wired to the connection end. The opposite end of the tube is hermetically sealed to prevent any liquid ingress. In case of wastewater or chemical applications, probe tube turns to be SS304 or SS316 rather than uPVC.
3. Polystyrene Float Cylinder: The float cylinder is coated with WF-AC-600 elastomeric acrylic, ensuring its integrity. It features a centre axis with engraved PVC incorporating four permanent magnets for dependable operation. In case of wastewater or chemical applications, float cylinder turns to be SS304 or SS316 rather than polystyrene.
Design Features
The AWAM magnetic float level switch boasts several notable design features:
Rugged Construction: Its durable design ensures long-term reliability in harsh operating conditions. Thanks to big-size float comparing to prevailing floats within international markets.
Versatile Mounting Options: Suitable for tanks of all kinds, the switch can control and monitor almost any liquid.
Industrial and Residential Suitability: It can be designed for heavy-duty industrial applications or for more delicate environments such as homes and commercial complexes.
Ease of Assembly: The flexible design allows for quick dismantling and reassembly, facilitating maintenance.
Harsh Condition Resistance: The switch is engineered to withstand extreme operating conditions, making it a robust choice for various applications.
How it Works
The operation of the AWAM magnetic float level switch is straightforward yet highly effective:
• The polystyrene float, with its permanent magnets, moves up and down with the liquid level governed bythe uPVC guide tube.
• As the float rises or falls, the magnets approach the reed contacts inside the guide tube, energizing them without physical contact.
• This non-contact switching method ensures wear-free operation, eliminating the vulnerabilities associated with traditional mechanical float switches. The system is designed to respond to rising liquid levels, ensuring accurate monitoring. 
Installation Guidelines
Installing the AWAM magnetic float level switch is a straightforward process:
• It can be installed in various settings, including domestic water tanks, septic tanks, and fire-fighting system tanks.
• The switch is designed to accommodate multiple switching points.
• Various installation methods are available to ensure professional and reliable level monitoring, even at invert level of concrete water tank / reservoirs.
Applications
The AWAM magnetic float level switch is versatile and suitable for numerous applications, including:
• On-Off Liquid Level Control: Ideal for simple liquid level management.
• Level Detection: Works effectively for almost all types of liquid media.
• Multipoint Level Switching: Controls pumps and valves at different filling levels.
• Water Treatment: Suitable for process water and drinking water applications.
• Leak Detection: LD1 is a mini version of the AWAM and can be used for detecting water leakage, (point leak detector).
• Direct PLC Connection: Offers compatibility with PLCs, BMS, SCADA, DCS connections, and other signal processing systems.
Special Features
The AWAM magnetic float level switch is characterized by several exceptional features:
• Durability: Designed for harsh conditions with a long service life.
• Maintenance-Free Operation: Reduces the need for regular upkeep.
• Cost-Effective: Offers reliable performance at a low cost.
• Safety: Complies with GCC regulations and ensures safe termination of field wiring.
• Wide Range of Applications: Versatile enough to serve in various industries.
• Materials: Constructed with stainless steel and plastics that exhibit zero permeability, preventing water pollution and dust ingress.
• Explosion Protection: Ensures safe operation in potentially hazardous environments.
Conclusion
AWAM magnetic float level switch epitomizes Mastering & Innovation (M&I Est.) - who is specialized in providing electromechanical solutions - representing the highest standards of reliability, durability, and versatility in liquid level management. With its rugged design, customizable features, and easy installation, AWAM float switch is the ideal choice for a wide range of applications, from industrial tanks to residential setups.
By choosing AWAM, you are not only investing in a product but also in a comprehensive solution that embodies mastery and innovation. This ensures that your liquid level management systems are efficient, reliable, and backed by a company dedicated to excellence. With AWAM, you can achieve peace of mind, knowing that you are supported by a product that stands at the forefront of Mastering & Innovation for electromechanical solutions.
Recent News

AWAM Magnetic Float Level Switch: A Benchmark in Excellence
August 17, 2024
