集中供暖冷热两用热量表是一个由流量计传感器、配对温度传感器、计算器组成的组合式仪表。流量传感器将叶轮转动信号转换成电脉信号，计算机通过记录脉冲数实现对流过的高温水进行累计测量；通过积分仪系统配对的温度传感器测量进水、回水的温度，经A/D转换后传送给计算器。计算器根据系统入口和出口处的温度计算热焓差、水的质量流量及水流经的时间，可计算出采暖系统实际消耗的流量。

    The center supply cool-heat meter is made of flow censor,the tempera-trure sensor,calculator.The flow sensor made the leaf wheel change the pulse signal,the computer use the pulse number to record the heat water quantity.Use Intergraph system made the temperature sensor to test forth-back temperature,pass A/D transfer to send calculator according system in-ner and exit difference in temperature.So can be get the total quantity of heat to use.