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23/30466787 DC BS EN 1434-3. Thermal energy meters Part 3. Data exchange and interfaces

23/30466787 DC

BS EN 1434-3. Thermal energy meters Part 3. Data exchange and interfaces

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Standard number:23/30466787 DC
Pages:20
Released:2023-08-17
Status:Draft for Comment
DESCRIPTION

23/30466787 DC


This standard 23/30466787 DC BS EN 1434-3. Thermal energy meters is classified in these ICS categories:
  • 17.200.10 Heat. Calorimetry
This document specifies the general requirements and applies to thermal energy meters. Thermal energy meters are instruments intended for measuring the energy which in a heat-exchange circuit is absorbed (cooling) or given up (heating) by a liquid called the heat-conveying liquid. The meter indicates heat in legal units. Part 3 specifies the data exchange between a meter and a readout device (POINT / POINT communication). For these applications using the optical readout head, the EN 62056-21 protocol is recommended. For networks with up to 250 meters, a master unit with AC mains supply according to EN 13757-2 is necessary to control the M-Bus. For these applications the physical and link layer of EN 13757-2 and the application layer of EN 13757-3 is required. For wireless meter communications, EN 13757-4 describes several alternatives of walk/drive-by readout via a mobile station or by using stationary receivers or a network. Both unidirectionally and bidirectionally transmitting meters are supported by this standard.