ДСТУ EN 1434-1:2019 Теплолічильники. Частина 1. Загальні вимоги (EN 1434-1:2015 + A1:2018, IDT)

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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 P_min)

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