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A thermal energy meter is a device designed to measure thermal energy that is transferred in a heat exchanger to a fluid known as the heat transfer fluid.
A thermal energy meter is either a compact meter or a combined meter consisting of subassemblies, which means a flow sensor, a pair of temperature sensors, and a calorimetric counter, or a combination of a compact and combined meter.
| Heat and Cold Meters and Their Components | Period |
|---|---|
| a) compact heat and cold meters | 5 years |
| b) meters of the volume of the carrier medium | 5 years |
| c) temperature sensors | 5 years |
| d) temperature sensors with built-in transmitter | 2 years |
| e) pressure and differential pressure sensors | 2 years |
| f) evaluation units of combined heat and cold meters | 5 years |
| Meters of Water Volume | Period |
|---|---|
| a) for cold and hot water - mechanical | 5 years |
| b) for cold and hot water - static | 8 years |
| e) water meters for cold and hot water except for meters mentioned in points a) and b) | 5 years |
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