The KATflow clamp-on ultrasonic flow meters work on the transit-time method. This is based on the principle that sound waves travelling with the flow will move faster than those travelling against it. The resulting difference in transit-time is directly proportional to the flow velocity of the liquid and consequently to the volumetric flow rate.
The ultrasonic transducers (sensors) of the flow meter are mounted on the external surface of the pipe and are used to generate and receive pulses. The flowing liquid within causes time differences in the ultrasonic signals, which are evaluated by the flow meter to produce an accurate flow measurement. The advanced electronics of the flow meter compensate for and adapt to changes in the flow profile and medium temperature to deliver reliable measurements.
The KATflow 230 is a portable dual-channel ultrasonic flow meter for non-invasive and nonintrusive flow measurement of liquids and liquefied gases in fully filled pipes. It is supplied with an internal datalogger and software for the recording and download of measured values. Additionally, it can be equipped with an integrated wall thickness gauge. Thanks to its intuitive instrument menu, Setup Wizard and Audible Sensor Positioning Assistant TM, the flow meter can be set up and its sensors correctly installed in a matter of minutes. Its two flow channels enable the KATflow 230 to monitor the flow on two pipes simultaneously or alternatively on one single pipe in a multi-path sensor mounting configuration. Equipped with the optional Heat Quantity Measurement function and PT100 sensors, the instrument can further be employed as a portable heat meter. Measured values can also be transferred by optional process outputs.