Working principle

When the water through the heat meter which installed in the heat exchange system, then meter’s calculator calculates and display the release or absorption of heat energy according to flow quantity from the flow sensor and the temp. signal of Inlet and Return flow from matching temp. sensors, and the water flow through time，the formula is like this：

In the formula：Q——the release heat quantity from the medium kJ；

q_m——the reheat liquid instantaneous mass flow quantity through the heat

meter kg/s；

∆h——the specific enthalpy difference of heat carrying liquid from inlet

 temperature and outlet temperature in the heat transfer loop kJ/kg；

t——Time s

The key components of ultrasonic heat meter

◇ Flow transducers

Installed in the heat exchange system, this part collects water flow quantity and send the

signal。

◇ Temperature sensor pair（PT1000）

One pair of metrological characteristics consistent or similar temperature sensor respectively measure the inlet and outlet temperature in the heat exchanging system on the same heat meter。

◇ Counter

Receiving the signals from the flow transducers and matching temperature sensors, then calculating, storage and display the heat (cold) value in the heat exchanging system