热量表出口欧洲如何做CE认证? 热量表/热能表属于计量器具,做CE认证要符合计量指令MID的相关要求,是MID的附录MI-004。 热量表/热能表MID认证的模式是:B+D模式,基本B是型式试验,D是审厂(可以选择国内审厂,省钱又方便) 测试标准: EN 1434-1:2015+A1:2018 Heat meters - Part 1: General requirements 一般要求 EN 1434-2:2015+A1:2018 Heat meters - Part 2: Constructional requirements 结构要求 EN 1434-4:2015+A1:2018Heat meters - Part 4: Pattern approval tests 模式批准试验 EN 1434-5:2015+A1:2018 Heat meters - Part 5: Initial verification tests 初步验证试验 测试项目: 7.4 Performance test 性能测试 7.5 Dry heat 干热 7.6 Cold 寒冷 7.7 Static deviations in supply voltage 电源电压的静态偏差 7.8 Durability 耐久性 7.9.1 Damp heat, cyclic 湿热交变 7.9.2 Damp heat, steady-state 湿热,潮态 7.10 Short time reduction in supply voltage 电源电压的短时降低 7.11 Electrical transients 电瞬变 7.12 Electromagnetic field 7.13 Electromagnetic field – digital radio equipment 7.14 Radio frequency, amplitude modulated 电磁场 7.15 Electrostatic discharge 静电放电 7.16 Static magnetic field 静态磁场 7.17 Main frequency magnetic field 主频磁场 7.18 Internal pressure 内部压力 7.19 Pressure loss 压力损失 7.20 Electromagnetic emission 电磁发射 7.21 24 hrs interruption 24小时中断 7.22 Flow disturbances 流量干扰 7.23 Vibration/ mechanical shock 振动/机械震动 WELMEC 7.2:2020 - Software Guide Software- / Firmware testing 软件评估/固件测试 那EN 1434-2关于结构的要求具体是什么呢?我们一起先来看一下标准的目录: 今天重点发一下流量传感器的要求: 再看一下第8条,关于标志的相关要求: 热量表/热能表MID认证测试项目: 7.4 Performance test 性能测试 7.5 Dry heat 干热 7.6 Cold 寒冷 7.7 Static deviations in supply voltage 电源电压的静态偏差 7.8 Durability 耐久性 7.9.1 Damp heat, cyclic 湿热交变 7.9.2 Damp heat, steady-state 湿热,潮态 7.10 Short time reduction in supply voltage 电源电压的短时降低 7.11 Electrical transients 电瞬变 7.12 Electromagnetic field 7.13 Electromagnetic field – digital radio equipment 7.14 Radio frequency, amplitude modulated 电磁场 7.15 Electrostatic discharge 静电放电 7.16 Static magnetic field 静态磁场 7.17 Main frequency magnetic field 主频磁场 7.18 Internal pressure 内部压力 7.19 Pressure loss 压力损失 7.20 Electromagnetic emission 电磁发射 7.21 24 hrs interruption 24小时中断 7.22 Flow disturbances 流量干扰 7.23 Vibration/ mechanical shock 振动/机械震动 WELMEC 7.2:2020 - Software Guide Software- / Firmware testing 软件评估/固件测试 环境等级: Class A (Domestic use, indoor installations) 家用,室内安装 Ambient temperature +5 C to +55 C Low level humidity conditions Normal electrical and electromagnetic conditions Low level mechanical conditions Class B (Domestic use, outdoor installations) 家用,室外安装 Ambient temperature -25 C to +55 C Normal level humidity conditions Normal electrical and electromagnetic conditions Low level mechanical conditions Class C (Industrial installations) 工业安装 Ambient temperature +5 C to +55 C Normal level humidity conditions High electrical and electromagnetic conditions Low level mechanical conditions 证书样本: 注意事项: 1、热量表/热能表MID认证在欧盟标准EN 1434中对产品结构和测试项目有明确的要求。 2、一定要选国内可以审厂的机构。 3、一定要找专业的经验丰富的工程师做指导。 4、超声波表软件部分要参考WELMEC,可以请相关人员做指导。 5、建议MID认证和OIML认证一起做。 |