CEN EN 12405-3 Gas meters - Conversion devices - Part 3: Flow computer
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- BSI BS EN 61582 Radiation protection instrumentation In vivo counters Classification, general requirements and test procedures for portable, transportable and installed equipment
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- 13
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- BSI BS EN 61582 Radiation protection instrumentation In vivo counters Classification, general requirements and test procedures for portable, transportable and installed equipment
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- 13.160
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- BSI BS EN 61582 Radiation protection instrumentation In vivo counters Classification, general requirements and test procedures for portable, transportable and installed equipment
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- 35
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- BSI BS EN 61582 Radiation protection instrumentation In vivo counters Classification, general requirements and test procedures for portable, transportable and installed equipment
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- 35.100
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- BSI BS EN 61582 Radiation protection instrumentation In vivo counters Classification, general requirements and test procedures for portable, transportable and installed equipment
- IEC 60721-3-5 Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities - Section 5: Ground Vehicle Installations - Edition 2.0
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- BSI BS EN 61582 Radiation protection instrumentation In vivo counters Classification, general requirements and test procedures for portable, transportable and installed equipment
- BSI BS IEC 62534 Radiation protection instrumentation - Highly sensitive hand-held instruments for neutron detection of radioactive material
- CENELEC CLC/TR 62685 Industrial communication networks - Profiles - Assessment guideline for safety devices using IEC 61784-3 functional safety communication profiles (FSCPs)
- Картотека зарубежных и международных стандартов
European Committee for Standardization
Gas meters - Conversion devices - Part 3: Flow computer
N EN 12405-3
Annotation
Part 3 of this European Standard specifies the requirements and tests for the construction, performance, safety and conformity of flow computers (FCs) used to meet the metrological and technical requirements of a high accuracy volume conversion device.
They are used to determine volume of fuel gases, including those of the first and second families according to EN 437.
For the purpose of this European Standard, only flow computers that are intended to operate with ultrasonic meters according to ISO 17089-1 or gas turbine meters conforming to EN 12261 are considered.
For the purpose of this European Standard only classification classes E2 and M1 are considered for the flow computer calculator.
FCs are equipped with external separate transducers for pressure and temperature which may be approved separately.
The provisions concerning pressure and temperature transducers are given in Annex B and C.
Requirements and tests are given for energy calculator in EN 12405-2.
Автоматический перевод:
Газовые счетчики - Конверсионные устройства - Часть 3: компьютер Потока
Часть 3 этого европейского стандарта указывает требования и тестирует на конструкцию, производительность, безопасность и соответствие компьютеров потока (FCs) раньше удовлетворяли метрологические и технические требования высокоточного устройства преобразования объема.
