What is BS EN 1434‑5‒ Thermal energy meters about?
BS EN 1434‑5 is the fifth part of a multi-series standard that deals with the thermal energy meters.
BS EN 1434‑5 specifies initial verification tests for thermal energy meters for measuring the energy in a heat-exchange circuit.
BS EN 1434‑5 also provides information about the uncertainty of test equipment, test methods for flow sensors, temperature sensor pair, the calculator, the calculator, and temperature sensor pair, combined thermal energy meter, verification of complete meter, and documentation to be supplied.
Note 1: BS EN 1434‑5 covers meters for closed systems only, where the differential pressure over the thermal load is limited.
Note 2: BS EN 1434‑5 does not cover electrical safety requirements, pressure safety requirements and surface mounted temperature sensors.
Who is BS EN 1434‑5 ‒ Thermal energy meters for?
BS EN 1434‑5 on thermal energy meters is useful for:
- Manufacturers and suppliers of thermal energy meters
- Dealers and distributors of thermal energy meters
- Test and certification providers for thermal energy meters
- Service providers for thermal energy meters
Why should you use BS EN 1434‑5‒ Thermal energy meters?
Thermal energy meters are instruments intended for measuring the energy in a heat-exchange circuit, that is absorbed (cooling) or given up (heating) by a liquid called the heat-conveying liquid. The thermal energy meter indicates the quantity of heat in legal units.
BS EN 1434‑5 tells you about the initial verification of a thermal energy meter that includes a series of tests and visual examinations. These test methods are carried out to help you determine whether an energy meter, manufactured to replicate a given pattern, conforms to the pattern and to its regulations.
If the energy meter passes all tests and examinations given in BS EN 1434‑5, it can be given legal character by its acceptance as evidenced by stamping and/or issuance of a certificate of verification.
You can also consider the provisions of BS EN 1434‑5 for the re-verification of thermal energy meters, proving it to be more beneficial for the manufacturers and suppliers.
What’s changed since the last update?
BS EN 1434‑5:2015+A1:2019 supersedes BS EN 1434‑5:2015, which is withdrawn. BS EN 1434‑5:2015+A1:2019 includes the following technical changes:
- Metrological requirements for smart metering applications are added
- Additional functionalities for smart metering applications are added
- Bath constructions are added
- Tests for cooling applications are added
- Single temperature sensor for smart metering added
- Test for bi-functional meters for change-over between heating and cooling added