BS EN 1434-4:2022

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Thermal energy meters – Pattern approval tests

Published By	Publication Date	Number of Pages
BSI	2022	80

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Categories: 17.200.20 - Temperature-measuring instruments, BSI

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Description

This document specifies pattern approval tests for 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 thermal energy meter indicates the quantity of thermal energy in legal units. This document covers meters for closed systems only, where the differential pressure over the thermal load is limited. This document is not applicable to: – electrical safety requirements; – pressure safety requirements; and – surface mounted temperature sensors.

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PDF Pages	PDF Title
2	undefined
8	1 Scope 2 Normative references
9	3 Terms and definitions 4 General 5 Requirements
10	6 Specification of operating conditions 6.1 Rated operating conditions 6.2 Reference conditions 6.3 Reference values for the measurand (RVM) 6.3.1 General 6.3.2 Reference values for the measurand
11	7 Tests and measurements 7.1 General
12	7.2 Test programme
14	7.3 Uncertainty of test equipment and influences of EUT
15	7.4 Performance tests 7.4.1 General 7.4.2 Flow sensor 7.4.2.1 General 7.4.2.2 Flow rates
16	7.4.2.3 Electromagnetic type flow sensors 7.4.2.4 Fast response meters
18	7.4.3 Calculator 7.4.3.1 Heating and cooling applications
19	7.4.3.2 Additional functionalities for smart metering applications
20	7.4.4 Temperature sensors 7.4.4.1 Qualifying immersion depth
21	7.4.4.2 Thermal response time 7.4.4.3 General testing 7.4.4.4 Testing of the influence of pockets
22	7.4.5 Combined sub-assemblies or complete meter 7.5 Dry heat 7.5.1 General 7.5.2 Calculator 7.5.3 Flow sensor
23	7.5.4 Combined sub-assemblies or complete meter 7.6 Cold 7.6.1 General 7.6.2 Calculator 7.6.3 Flow sensor 7.6.4 Combined sub-assemblies or complete meter
24	7.7 Static deviations in supply voltage
25	7.8 Durability test 7.8.1 General 7.8.2 Flow sensor 7.8.2.1 General
26	7.8.2.2 Basic test
27	7.8.2.3 Additional test
28	7.8.2.4 Accelerated Durability test
29	7.8.3 Temperature sensors
30	7.8.4 Combined sub-assemblies or complete meter 7.9 Damp heat 7.9.1 Damp heat cyclic
31	7.9.2 Damp heat steady-state 7.10 Short time mains voltage reduction
32	7.11 Electrical transients 7.11.1 Fast transients (bursts)
33	7.11.2 Surge transients
35	7.12 Electromagnetic fields 7.12.1 Low frequency fields
36	7.12.2 High frequency fields
37	7.13 Electromagnetic field specifically caused by wireless equipment 7.13.1 Electromagnetic field in distant proximity
38	7.13.2 Electromagnetic field in close proximity
39	7.14 Radio frequency amplitude modulated
41	7.15 Electrostatic discharge 7.16 Static magnetic field (fraud protection)
42	7.17 Mains frequency magnetic field 7.18 Internal pressure 7.19 Pressure loss
43	7.20 Electromagnetic emission 7.20.1 General 7.20.2 Conducted emission on power AC lines 7.20.3 Conducted emission on signal and DC power lines
44	7.20.4 Radiated emission 7.21 24 h interruption in the mains power supply voltage 7.22 Flow disturbances
47	7.23 Vibration/mechanical shock 8 Documentation
49	Annex A (informative)Testing procedure for temperature sensor pairs with pockets and without pockets A.1 Test set-up A.1.1 General A.1.2 Requirements of a temperature bath A.1.2.1 General A.1.2.2 Temperature distribution
50	A.1.2.3 Liquid
51	A.1.2.4 Test setup A.2 Test sequence
52	A.3 Calculations
53	Annex B (informative)Checklist for type approvals of thermal energy meters according to EN 1434
72	Annex C (informative)Criteria for a fully developed flow profile
73	Annex D (normative)Asymmetric swirl generator
77	Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 2014/32/EU aimed to be covered

Additional information

Status	Definitive
Pages	80
Publication Date	2022-09-13
ISBN	978 0 539 14500 7
Standard Number	BS EN 1434-4:2022
Title	Thermal energy meters – Pattern approval tests
Identical National Standard Of	EN 1434-4
Replaces	BS EN 1434-4:2015+A1:2018
Descriptors	Electrical testing, Ratings, Electric power systems, Heat pipes, Testing conditions, Electromagnetic radiation, Accuracy, Environment (working), Hydraulic pressure, Crime prevention devices, Interruption tests, Approval testing, Heat exchangers, Pressure testing, Electrical wave measurement, Electrostatics, Magnetic fields, Electromagnetic fields, Flow rates, Heat measurement, Calculators, Test equipment, Heat-measuring instruments, Meters, Probes, Endurance testing, Environmental testing, Thermal-cycling tests, Quality assurance systems, Transient voltages
Publisher	BSI
Committee	CPI/30
ICS Codes	17.200.20 - Temperature-measuring instruments

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BS EN 1434-4:2022

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