Advantage

Flowline ultrasonic level sensors feature our patented digital signal processing technology that delivers the Flowline advantage, accurate and reliable, non-contact measurement of chemical, water and wastewater from 0.25m-10m. This adaptive technology creates a living map of your tank process and continuously optimizes sensor power, obstacle recognition and rejection, signal output filtering, environmental noise rejection and fail-safe diagnostics. Packaged in advanced thermoplastics for corrosive applications, Flowline ultrasonic sensors require little or no maintenance, and provide better performance than contact devices which generally suffer from prolonged liquid contact. The Flowline DSP advantage delivers the following application benefits:

• Robust non-contact level measurement from 0.25m-10m
• 0.2% accuracy with little or no degradation over the range
• Auto-adaptive signal output filtering smooths liquid agitation
• Narrow 2" beam width for installation near walls or obstacles
• Tight 2" dead band optimizes the filling capacity of small tanks

Function

Flowline ultrasonic level sensors emit four high-frequency sound pulses a second from the base of the transducer. Each pulse travels through air, reflects off the liquid surface and returns back to the transducer where its received. The temperature compensated sensor measures the time interval from pulse transmission to receipt, and translates this into distance or liquid level based upon the speed of sound. A proportional measurement signal and/or relay contacts are output consistent with the user configuration.