Heat meters

Heat meters consist of a flow meter and a pair of thermo meters (for inlet and return pipes). When measuring for internal purposes (such as control measurements or total measurements), there is no need for a certified (determined) gauge.

However, if the meter is to be used for billing of consumed energy or protected medium, a gauge certified by ČMI (Czech Metrology Institute) must be used for billing according to valid legislation, or the parties have to agree on billing according to a non-specified gauge.

Inductive heat meter

Billing measurement means that it is certified by the CMI and has type approval, which can serve as a basis for billing the supplier for consumed energy to the customer. Such a meter has 2 thermometers, a flow meter and an evaluation unit that calculates the energy consumed according to the temperature and flow difference. Temperature sensors are the most commonly used PT500 resistance thermometers in a 4-wire design.


Benefits and usage

In this case, the flow meter is an induction sensor. Its advantage is, among other things, the possibility of using it at higher temperatures, or for higher flow rates or pressures. These sensors are highly durable and adapted for industrial use. This is advantageously used for instance at the base of the house, in heat exchangers, directly in heat sources, but also in the measurement of cold.