& have spent & have spent Heat meter Watson Wchangeorganisation is the calculation of heat meter. The working principle of the heat meter: install a temperature sensor respectively under through heat transfer fluid ascending tube and pipe, the flow meter installed in the fluid entrance or return line (flowmeter installation position is different, the final measurement results are also different), flowmeter signal is proportional to the flow of the pulse, a pair of the temperature of the analog signal, temperature sensor are presented and integrating instrument acquisition signals from the sensors in the flow and temperature, calculate the heat exchange system by integrating formula obtained by heat.