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Level sensors monitor the level of liquids, pellets, powders, and other similar products in tanks and process systems. Available sensors include contact, non-contact and submersible sensors, as well as float and rotating paddle level switches. Flowline series controllers add the ability to control alarms, pumps, valves and other industrial equipment.
Level Sensors and Controllers
Category Selection
- Ultrasonic Level Sensors/Switches
- Guided Wave Radar Level Sensors
- Submersible Level Sensors
- Differential Pressure Level Transmitters
- Vibration Fork Level Switches
- Float Level Switches
- Rotating Paddle Level Switches
- Capacitance Level Switches
- Level Controllers - General-purpose and Conductive Level Controllers
- Level Sensors & Controllers Accessories
For part listings and specifications, go to Shop Now
Ultrasonic Level Sensors/Switches
Flowline ultrasonic level sensors/switches use ultrasonic waves to measure the distance between the sensor and the media being measured.
- Non-contact ultrasonic level sensors are suitable for either open or enclosed tanks (not suitable for pressurized tanks). These level sensors can replace float, conductance and pressure sensors that fail due to contact with dirty, sticky, and scaling liquids.
- Contact ultrasonic level sensors measure levels by making contact with the media being sensed. These intrinsically safe level switches provide reliable detection of chemical, solvent, hydrocarbon, and petroleum-based liquids.
- Reflective ultrasonic level sensors (non-contact) feature proprietary technology that delivers reliable level measurement for applications in condensing environments. General purpose and intrinsically safe versions offer single and multifunction capabilities, including continuous level measurement, switching and control.
Guided Wave Radar Level Sensors
Prosense GWR series guided wave radar level sensors are a low-cost solution to measure levels of water- or oil-based media, and soiled, viscous liquids or liquids that are prone to formation of deposits. Rugged 316 stainless steel housings are IP68/IP69K rated.
- Switch and analog outputs for both continuous and point level measurement
- Probe and coaxial tubes available from 240mm to 1600mm lengths that can be cut to adapt to specific level application
- Easy setup using pushbuttons and display on unit
Submersible Level Sensors
ProSense SLT series submersible level sensors provide continuous liquid level measurement by sensing the hydrostatic pressure produced by the height of liquid above the sensor and providing a 4-20 mA output signal compatible with PLCs, panel meters, data loggers, and other electronic equipment. Transmitters, vent filters, bellows, and junction boxes are available.
Differential Pressure Transmitters
The ProSense DPTW series differential pressure transmitter series is precision engineered for accurate differential or gauge pressure measurement of a wide variety of liquids, gases, and steam applied to both pressure sensing ports.
- Wet-wet design ideal for liquid, gas, and steam measurement of differential, positive, or negative pressures, hydrostatic liquid level, and flow
- Integral pressure port manifold with 1/4 inch female process connections and built-in equalizing valve
- Digital filter function to dampen pulsations and provide a more stable output and display
- Bright backlit 6-digit LCD display
- Rugged NEMA 4X (IP65)
Vibration Fork Level Switches
ProSense VFL series liquid level switches use tuning fork technology for point level detection, with a DC output for connection to controller inputs or AC/DC switch for control of valves and pumps.
- Short or extended insertion lengths
- Standard or high process temperature ranges
- Ideal for applications not suitable for other liquid point level technologies due to conductivity, turbulence, buildup, air bubbles, foam, pressure, temperature, and viscosity changes
Float Level Switches
ProSense float level switches provide a low-cost general purpose solution for single point monitoring of liquid level in a variety of applications. These switches are available in several different material constructions for compatibility with many types of liquids, a wide operating temperature range, and various system pressure requirements. Vertical and horizontal mounting styles with several mounting thread variations are available for easy installation.
Rotating Paddle Level Switches
ProSense rotating paddle level switches operate by contact with the medium; if the paddle is stopped by the material, the motor's position change operates switch contacts. Robust and compact, these switches are ideal for detecting the full, empty, refill, or point level status in silos, hoppers, and bins containing bulk solids such as cereals, animal feeds, washing powders, granulates, or wood.
- 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
Flowline capacitance level switches provide reliable high or low liquid level detection of water-based conductive liquids with light coating, crystalizing or scaling characteristics.
- Submersible polypropylene (PP) sensor body and cable for corrosive liquids
- 60VA relay
- Great for wastewater applications
Level Controllers
Flowline level controllers include the Switch-Pro™ and DataPoint™ general purpose level controllers. The Switch-Pro™ series is available in three discrete sensor input configurations. The DataPoint™ series provides single tank level indication.
ProSense 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 are available for Flowline contact and non-contact level sensors, submersible level sensors, and ProSense rotating paddle level switches.
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