Uson-21 Ex Ultrasonic Level Transmitter

Uson-21 works on the same principle as Uson-11. Transducer (probe) sends out high frequency ultrasonic pulses. When a pulse hits liquid surface, it is reflected back. The reflected wave is received by transducer and converted into an electronic signal. The ultrasonic pulse travels at velocity of sound wave, and the time interval between transmitted ultrasonic pulse and received ultrasonic pulse is directly proportional to the distance between transducer and liquid surface. The relationship between distance S, sound speed C and time interval T can be expressed by a formula: S=C×T/2.

●　Certified for high level of Flameproof Enclosure explosion protection: Ex d II C T6 Gb.

●　With three measurement for selection, including 5 meters, 10 meters and 15 meters.

●　With temperature compensation function, offers high accuracy and strong adaptability.

●　With RS-485 communication interface.

●　Special echo signal processing algorism is used, effectively avoids false echo signal.

●　With IP66/IP67 Ingress protection rating.

●　Probe made of corrosion-resistant PVDF, suitable for corrosive liquid or applications under corrosive environment.

●　High cost-effective ratio and low maintenance cost.

●　EMC design of the product complies with IEC61000-4 (GB/T 17626.2) standard in EFT (LT: A), ESD (LT: A) and surge.

●　Ideal solution for open tank/pool where the atmosphere contains explosive gas.

●　For applications under corrosive environment where the atmosphere contains explosive gas as well, such as urban drainage pumping station, sump pit/collecting well, biochemical reaction pool and sedimentation tank, etc.

For more information, please Contact：sales@jiweimeter.com