A level switch is a device used to detect and control the level of liquids, powders, or granular materials in tanks, silos, or pipelines. It plays a crucial role in industrial automation, safety, and efficiency, ensuring that materials do not overflow or drop below required levels.

Types of Level Switches
1. Float Level Switch
Works on the principle of buoyancy.

A floating component moves with the liquid level to activate the switch.

Commonly used in water tanks, fuel systems, and sumps.

2. Conductivity Level Switch
Uses electrical conductivity to detect liquid levels.

Ideal for detecting water-based liquids but not suitable for non-conductive fluids like oil.

Frequently used in chemical processing and water treatment plants.

3. Capacitive Level Switch
Detects material levels based on changes in capacitance.

Suitable for both liquids and solids, including powders and granular substances.

Used in food processing, cement industries, and pharmaceutical sectors.