METROLOGICAL MAINTENANCE OF JUNCTIONS FOR METERING HEAT ENERGY AND HOT WATER

A new approach to estimating the error in measuring heat energy and the flow rate of hot water at metering junctions is proposed. The results of the analysis enable one to determine the sources of systematic errors, to formulate the require-ments imposed on the metrological characteristics of the units which form part of the heat meters, and on the conditions and aims of the check, and also enable the idea of “metrological maintenance” to be introduced. The need to develop new standard documents which regulate the approach to error estimates is pointed out.