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| 品牌：万达 | 型号：YEJ-101 | 类型：膜盒压力表 |
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| YEJ系列矩形膜盒压力表 Pressure Gauges压力表专利证书(http://www.chinawanda.net/default.asp?a_c_id=236&a_id=16489)简 介 YEJ-101型矩形膜盒压力表适用于锅炉通风设备对铜合金不起腐蚀作用的和中性、无爆炸危险的气体的微压和负压进行测量。 YEJ-121型矩形接点膜盒压力表是适用于锅炉通风设备对铜合金不起腐蚀作用的和中性、无爆炸危险的气体的微压和负压进行测量并具有双二位调节（双线发讯）的作用，以实现位式调节或超限报警作用。 Brief Introduction: YEJ-101 model rectangular membrane case pressure meter is applicable to measure micro-pressure and negative pressure of neutral gases without danger of explosion, which cause no erosive attack on copper alloy. It is also applicable to measure micro-pressure and negative pressure of neutral gases without danger of explosion in boiler draft equipments, which cause no erosive attack on copper alloy. In addition, it has a function of dual two-position adjustment (message sent by dual line), so as to realize position主要技术参数精确度等级：2.5级使用环境条件：-20～60℃（YEJ-121为0～50℃），相对湿度不大于85%，且震动和被测介质的急剧脉动应对仪表正常工作无明显影响电气指标：（YEJ-121型） 设定误差：小于全量程的2.5% 位式输出接点容量：交流无感负载3A 220V 工作电源： AC220V 消耗电源：小于5W压力接口：Φ8（配用内径Φ6软管） Principal technical parametersAccuracy: 2.5 gradesEnvironmental condition in use: -20～+60oC, with relativehumidity not greater than 85% and no vibration and pulseof tested medium greater enough to make obvious beimPACted on the instrument from normal working.Electric indicator: (YEJ-121 model)Specification error: less than 2.5% of whole scale Contact rating of digital output: 3A 220V (AC non inductive load) Operational power supply: AC220V power supply: less than 5WCompression interface: Φ8 (with flexible pipe of Φ6 inminor diameter matched)型号表示
 YEJ-121型接线端子图订货须知Orering Information 订货时须注明：型号、名称、精确度等级、测量范围。如特殊要求，订货时请注明技术要求 Ordering instructions: The product computer code ,types, names, accuracy grades, and measuring ranges .must be clearly noted. In case of special requirements, technical requirements shall be clearly noted specifications on the back of the order on ordering goods. | ||||||||||||||||||||||||||||||||||||||||||||||
