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Measurement of fluid flow in closed conduits—Ultrasonic meters for gas—Part 2: Meters for industrial applications
Measurement of fluid flow in closed conduits—Ultrasonic meters for gas—Part 1: Meters for custody transfer and allocation measurement
本标准规定了气体超声流量计的测量性能要求、流量计本体要求、安装和维护、现场验证测试要求,以及流量计算方法及测量不确定度估算。本标准适用于插入式传播时间差法气体超声流量计(以下简称流量计),一般用于集输装置、输气管线、储存设施、配气系统和用户计量系统中的天然气流量测量。外夹式气体超声流量计的使用可参考
Measurement of natural gas flow by gas ultrasonic flow meters
本标准适用于传播时间差法气体超声流量计,其通径等于或大于l00 mm,压力不低于0.1 Mpa(表压)。一般用于气质符合本标准第5.1条款规定的牛产装置、输气管线、储藏设施、配气系统和用户计量系统中的天然气流量测量。 本标准使用的天然气体积计算标准参比条件是:压力为0.101 325 Mpa
Measurement of natural gas flow by ultrasonic flow meter
本标准规定了用声速检验法对气体超声流量计进行使用中检验的方法。本标准适用于以传播时间差法为原理、具备自诊断功能的插入式气体超声流量计
Ultrasonic gas flow meter performance online audit.Method using speed of sound checking
Measurement of fluid flow in closed conduits - Ultrasonic meters for gas - Part 2: Meters for industrial applications
IMPORTANT — The electronic file of this document contains colours which are considered to be useful for the correct understanding of the document
Measurement of fluid flow in closed conduits - Ultrasonic meters for gas - Part 1: Meters for custody transfer and allocation measurement
Liquid flow measurement in open channels — Ultrasonic (acoustic) velocity meters
This specification covers the requirements for non-intrusive,ultrasonic, liquid flow measuring equipment including the digital readout for use
FLOWMETER, LIQUID, ULTRASONIC, NON-INTRUSIVE
Measurement of fluid flow in closed conduits—Ultrasonic transit-time meters for liquid
Ultrasonic Doppler flowmeter
(1)流速平均值最大允许误差:≤±5%。 (2)24h零点漂移≤±1%F.S.;一周零点漂移≤±2%F.S.。 (3)24h量程漂移≤±1%F.S.;一周量程漂移≤±2%F.S.。 (4)系统响应时间≤5s。 (5)零流量读数≤0.01m/s。 (6)流量计的电源端子与接地端子、输出端子和
Exhaust gas ultrasonic velocity and flow meters
本规程适用于以时间差法为原理的封闭管道用超声流量计(以下简称流量计)的型式评价、首次检定、后续检定和使用中的检验。 本规程不适用于明渠或暗渠超声流量测量仪表的检定
Ultrasonic Flowmeters
Measurement of fluid flow in closed conduits - Ultrasonic transit-time meters for liquid
Measurement of fluid flow in closed conduits—Ultrasonic meters for gas—Part 2: Meters for industrial applications
Measurement of fluid flow in closed conduits—Ultrasonic meters for gas—Part 1: Meters for custody transfer and allocation measurement
本标准规定了气体超声流量计的测量性能要求、流量计本体要求、安装和维护、现场验证测试要求,以及流量计算方法及测量不确定度估算。本标准适用于插入式传播时间差法气体超声流量计(以下简称流量计),一般用于集输装置、输气管线、储存设施、配气系统和用户计量系统中的天然气流量测量。外夹式气体超声流量计的使用可参考
Measurement of natural gas flow by gas ultrasonic flow meters
本标准适用于传播时间差法气体超声流量计,其通径等于或大于l00 mm,压力不低于0.1 Mpa(表压)。一般用于气质符合本标准第5.1条款规定的牛产装置、输气管线、储藏设施、配气系统和用户计量系统中的天然气流量测量。 本标准使用的天然气体积计算标准参比条件是:压力为0.101 325 Mpa
Measurement of natural gas flow by ultrasonic flow meter
本标准规定了用声速检验法对气体超声流量计进行使用中检验的方法。本标准适用于以传播时间差法为原理、具备自诊断功能的插入式气体超声流量计
Ultrasonic gas flow meter performance online audit.Method using speed of sound checking
Measurement of fluid flow in closed conduits - Ultrasonic meters for gas - Part 2: Meters for industrial applications
IMPORTANT — The electronic file of this document contains colours which are considered to be useful for the correct understanding of the document
Measurement of fluid flow in closed conduits - Ultrasonic meters for gas - Part 1: Meters for custody transfer and allocation measurement
Liquid flow measurement in open channels — Ultrasonic (acoustic) velocity meters
This specification covers the requirements for non-intrusive,ultrasonic, liquid flow measuring equipment including the digital readout for use
FLOWMETER, LIQUID, ULTRASONIC, NON-INTRUSIVE
Measurement of fluid flow in closed conduits—Ultrasonic transit-time meters for liquid
Ultrasonic Doppler flowmeter
(1)流速平均值最大允许误差:≤±5%。 (2)24h零点漂移≤±1%F.S.;一周零点漂移≤±2%F.S.。 (3)24h量程漂移≤±1%F.S.;一周量程漂移≤±2%F.S.。 (4)系统响应时间≤5s。 (5)零流量读数≤0.01m/s。 (6)流量计的电源端子与接地端子、输出端子和
Exhaust gas ultrasonic velocity and flow meters
本规程适用于以时间差法为原理的封闭管道用超声流量计(以下简称流量计)的型式评价、首次检定、后续检定和使用中的检验。 本规程不适用于明渠或暗渠超声流量测量仪表的检定
Ultrasonic Flowmeters
Measurement of fluid flow in closed conduits - Ultrasonic transit-time meters for liquid