The EASZ-11 is an Ultrasonic Open Channel Flowmeter capable of measuring flow rates in all types of Open Channel Flow applications up to a range of 10 m. The Transmitter has standard outputs of 4-20 mA and 2 relays, which can be configured as a High, Low or Totaliser output. A EESIFLO 10 transducer is normally used in conjunction with the EASZ-11.

The transducer is mounted perpendicularly above the flow that is to be measured. The microprocessor in the Transmitter fires an electronic pulse, which the Transducer converts to an acoustic pulse. This pulse travels towards the and is reflected back from the flow. The Transducer then converts this energy back into a signal and stops a countely in the microprocessor which then, knowing the speed of sound through air, can accuratey determine the distance and furthermore the flow from the flume or weir settings which must be programmed into the Transmitter by the user. The powerful software removes false echoes and the electronic filter removes ambient noises.

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