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All >> Level measurement >> Ultrasonic measurement Time-of-Flight Prosonic
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Product name:
Ultrasonic measurement Time-of-Flight Prosonic
Product series:

FMU44

Product brand:
E+H/Endress+Hauser
Product feature:
• Reliable non-contact measurement • Quick and easy commissioning via menu-guided on-site operation with a four-line plain-text display and seven selectable languages • Envelope curves on the on-site display for easy diagnosis • Hermetically sealed and potted sensor • Chemically resistant PVDF sensor • Calibration without filling or draining the vessel • Integrated temperature sensor for automatic correction of temperature-dependent sound velocity
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Measuring principle:
Ultrasonic measurement is based on the time-of-flight (ToF) principle, measuring the distance between the reference point and the medium surface. The sensor emits ultrasonic pulses toward the material surface. The pulses are reflected from the material surface and received by the sensor, while the transmitter measures the time difference (t) between pulse transmission and reception. Based on the time difference (t) and sound velocity (c), the distance is calculated as D = c × t / 2. Based on the distance (D), the level (L), volume (V), and flow rate (Q) in weirs or open channels can also be calculated.
Product positioning:
Standard
Using scenario:
The Prosonic FMU44 is ideal for continuous, non-contact level measurement in a wide range of liquid and bulk solid applications. It is commonly used in storage tanks, process vessels, and silos where reliable level monitoring is required without direct contact with the medium. Typical applications include water and wastewater treatment, chemical processing, bulk material handling, and general industrial processes. Its non-contact ultrasonic technology makes it particularly suitable for applications involving corrosive, aggressive, or contaminated media where direct-contact measurement is not preferred.
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