- Water heat-content measurement
SONOTHERM meters measure the absolute values of heat transferred by flowing water. They are typically used as commercial meters for closed-loop heat-supply water systems. SONOTHERM meters measure and store data on heat contained in water where the heat values are calculated by means of a calorimetric counter using the measured water flow rate and the difference in temperatures in the feeding and return water piping as input data. The SONOTHERM heat meter consists of an ultrasonic flow meter, coupled resistance temperature sensors and a control electronic unit.