The FDM Mini Float Level Switch is an industrial liquid level detection device engineered for compact installations and reliable process monitoring. Designed using magnetic reed switch technology, this float switch operates based on the principles of buoyancy and magnetism, allowing accurate point-level detection in tanks, vessels, and machine systems.
Its miniature design makes it ideal for applications where installation space is limited but precise liquid level control is essential. Industries such as water treatment, chemical processing, marine systems, food production, and hydraulic equipment rely on compact float switches like the FDM series to maintain safe and efficient operations.
With corrosion-resistant materials and flexible mounting configurations, the FDM switch ensures stable performance even in demanding industrial environments.
Key Features
- Compact design for small tanks and machinery
- Magnetic reed switch for reliable level detection
- Cost-effective liquid level control solution
- Multiple mounting and connection options
- Corrosion-resistant materials available
- Stable switching performance with minimal maintenance
- Suitable for high or low liquid level detection
- Designed for industrial automation and pump protection
Design & Functionality
The FDM mini float switch uses a magnet embedded inside the float combined with a reed switch inside the stationary stem. As the liquid level rises or falls, the float moves accordingly due to buoyancy.
When the magnet inside the float approaches the reed switch, it activates the electrical contact, either opening or closing the circuit. When the liquid level changes again, the float moves away and the contact reverses.
This simple yet reliable switching mechanism allows the sensor to function without complex electronics while maintaining high reliability and long operational life.
Total Crossed Beams
The FDM series is designed to deliver precise point-level switching, ensuring accurate detection when the liquid reaches a predefined level. Its internal reed switch mechanism ensures stable switching with minimal signal delay.
This reliability makes it ideal for automated process systems, pump protection circuits, and safety level alarms.
Beam Pitch Options
Various mounting types and connection configurations allow the switch to be installed in different tank sizes and orientations. The compact body enables integration in small reservoirs, pipelines, machine tanks, and compact processing equipment.
Available material options such as stainless steel and chemical-resistant plastics allow the switch to operate safely with a wide range of industrial liquids.
Intrinsic Synchronism
Because the switching mechanism is activated by a magnetic field rather than mechanical contact, the device provides consistent switching performance. The reed switch operates with minimal wear, enabling long operational life and reliable performance in continuous industrial operation.
Operational Advantages
The FDM Mini Float Level Switch offers several operational benefits for industrial level monitoring systems.
Its compact construction enables installation in restricted spaces without sacrificing measurement reliability. The magnetic switching mechanism ensures stable and repeatable level detection, while the corrosion-resistant materials allow use in aggressive liquids.
Additionally, the switch can be integrated into pump control systems, tank monitoring systems, and automated process equipment, helping operators maintain safe liquid levels and prevent equipment damage.
