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产品介绍：
YEJ系列矩形膜盒压力表
Pressure Gauges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 parameters- Accuracy: 2.5 grades
- Environmental condition in use: -20～+60oC, with relative
- humidity not greater than 85% and no vibration and pulse
- of tested medium greater enough to make obvious be
- impacted 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 5W - Compression interface: Φ8 (with flexible pipe of Φ6 in
- minor diameter matched)
型号表示
标记示例：YEJ-101B 产品电脑编码0070093400不锈钢矩形膜盒压力表，不带设定，产品电脑编码详见《矩型膜盒压力表选型指南》。Mark example: the product computer code for YEJ-101B is 0070093400.For more information of stainless steel rectangular theca box pressure meter without setting, The product computer codeplease see the “Guide for type selection of rectangular theca box series instruments and meters”测量范围 Meaduring range （Pa）压力Pressure真空Vacuum压力真空（联程）Pressure vacuum (linkage)0～160-160～0-80～+800～250-250～0-120～+1200～400-400～0-200～+2000～600-600～0-300～+3000～1000-1000～0-500～+5000～1600-1600～0-800～+8000～2500-2500～0-1200～+12000～4000-4000～0-2000～+20000～6000-6000～0-3000～+30000～10000-10000～0-5000～+50000～16000-16000～0-8000～+80000～25000-25000～0-12000～+120000～40000-40000～0-20000～+200000～60000-60000～0-30000～+30000外形尺寸
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.
