ДСТУ EN 1434-1:2019 Теплосчетчики. Часть 1. Общие требования (EN 1434-1:2015 + A1:2018, IDT)
ПІДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ
Державне підприємство
«Український науково-дослідний і навчальний центр
проблем стандартизації, сертифікації та якості»
(
(ДП «УкрНДНЦ»))
Наказ від 18.07.2019 № 217
EN 1434-1:2015 + A1:2018
Thermal energy meters —
Part 1: General requirements
прийнято як національний стандарт
методом «підтвердження» за позначенням
ДСТУ EN 1434-1:2019
(EN 1434-1:2015 + A1:2018, IDT)
Теплолічильники.
Частина 1. Загальні вимоги
З наданням чинності від 2019–08–01
Contents
European foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Types of instruments
4.1 General
4.2 Complete instrument
4.3 Combined instrument
4.4 Hybrid instrument
4.5 Sub-assemblies of a thermal energy meter, which is a combined instrument
4.6 Equipment under test (EUT)
5 Rated operating conditions
5.1 Limits of temperature range
5.2 Limits of temperature differences
5.3 Limits of flow rate
5.4 Limit of thermal power
5.5 Limits of working pressure (PS and Pmin)
5.6 Nominal pressure (PN)
5.7 Limits in ambient temperature
5.8 Limits in deviations in supply voltage
5.9 Maximum pressure loss
5.10 Specific requirements on registration devices
6 Technical characteristics
6.1 Materials and construction
6.2 Requirements outside the limiting values of the flow rate
6.3 Display
6.4 Protection against fraud
6.5 Supply voltage
6.6 Qualifying immersion depth of a temperature sensor
6.7 The influence on a temperature sensor pair caused by mounting in pockets
6.8 Reproducibility
6.9 Repeatability
6.10 Software
7 Specified working range
7.1 General
7.2 Temperature difference
7.3 Flow rate
8 Heat transmission formula
9 Metrological characteristics (Maximum Permissible Error, MPE)
9.1 General
9.2 Values of maximum permissible errors
9.3 Application of maximum permissible errors
10 Environmental classification
10.1 General
10.2 Environmental class A (Domestic use, indoor installations)
10.3 Environmental class B (Domestic use, outdoor installations)
10.4 Environmental class C (Industrial installations)
10.5 Mechanical classes M1 to M3
11 Thermal energy meter specification
11.1 General
11.2 Flow sensor
11.3 Temperature sensor pair
11.4 Calculator
11.5 Complete meters
12 Information to be made available by the manufacturer or supplier
12.1 Installation instructions
12.2 Parameter setting instructions
12.3 Adjustment instructions
12.4 Maintenance instructions
12.5 Hints for disposal instructions
Annex A (normative) Heat coefficient equations
Annex B (normative) Flow conditioner package
Annex C (normative) Fast response meters
Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2014/32/EU aimed to be covered
Bibliography
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