Level Sensors and Controllers

Vibration Fork Level Switches

Vibration fork level switches use tuning fork technology to provide reliable liquid point level detection. They are ideal for monitoring, alarming, and control applications, even when conductivity, turbulence, air bubbles, foam, pressure, temperature, or viscosity changes may be a factor.

• Short or extended insertion lengths
• Standard or high process temperature ranges

Float Level Switches

Float level switches use magnets and reed switches to determine the level of liquid using the buoyancy of the float. Top-mount float level switches have a permanent magnet inside a hollow float and side-mount float switches have a magnet fixed to the pivot arm of a hollow float. As the liquid rises/falls, the distance between the magnet and the reed switch is varied causing the circuit to open or close. Float switches provide a low-cost solution for liquid-level monitoring applications and offer a variety of constructions compatible with many liquids, temperature ranges, and system pressures.

• Vertical and horizontal mounting styles
• A variety of process connections for easy installation
• Specialized switches for 55-gallon drums and HVAC condensate lines

Rotating Paddle Level Switches

Rotating paddle level switches provide point level measurement of solid materials using a motor-driven rotating paddle. The switches are actuated when the monitored material covers the blade, impeding its rotation. AC and DC powered versions are available, as well as hazardous location models.

• Available with a selection of shaft lengths, and a rope version that can be field shortened
• Models with Factory Mutual (FM) certification for Dust Ignition Proof, Class II, III, Division 1, Groups EFG applications

Capacitance Level Switches

Capacitance level switches are contact sensors that provide point-level detection of powders, fine-grained bulk solids, or water-based conductive liquids. Many models have hazardous location ratings or are FDA-compliant for food and beverage industry applications when installed with appropriate hygienic fittings.

• Solid state or relay outputs
• IO-Link capability on select models

Level Controllers

Level controllers provide fail-safe control of pumps or valves and are available with discrete I/O for alarms, pump and valve control, or with analog I/O for more accurate level monitoring and control.

• Switch-Pro™ series is available in three discrete sensor input configurations
• DataPoint™ series provides single tank level indication
• Conductive liquid level controllers detect and control levels of conductive liquids (tap water, seawater, sewage, chemical solutions, etc.).

Level Sensors & Controllers Accessories

Level sensor and controller accessories include a general-purpose digital indicator, free downloadable configuration software, and a USB adapter fob (for programmable level sensors), as well as probes, junction boxes, and other parts and fittings needed for installation and integration.