天津国产压力变送器,差压变送器常见故障分析!-西安华恒变送器厂家
天津国产压力变送器,差压变送器常见故障分析!
信息来源: 华恒 | [ 2019-05-13 ] 点击量: 270

   压力变送器常见故障分析!西安华恒仪表制造有限公司为您介绍:

 
  Pressure transmitter common fault analysis!Xi'an Huaheng Instrument Manufacturing Co.,Ltd.
 
  一:无输出
  One:No Output
 
  1、导压管开关没有打开;
  2、导压管路堵塞;
  3、供电电源过低;
  4、供电电源接错;
  5、仪表输出回路故障;
  6、安全栅故障;
  7、表头故障、无法显示;
  8、内部插件接触不良;
  9、电路板故障
 
  1.The switch of the guide pipe is not opened;
  2.The guide pipe is blocked;
  3.The power supply is too low.
  4.Connection fault of power supply;
  5.Output circuit fault of instrument;
  6.Safety grid fault;
  7.Head failure,unable to display;
  8.Poor contact of internal plug-ins;
  9.Circuit Board Faults
 
  二、输出过大
  Excessive Output
 
  1、导压管中有残存液体、气体;
  2、电路板故障;
  3、负导压管一次阀没开或者是没开全;
  4、负压管泄露;
  5、安全栅故障;
  6、DCS量程设置过大;
 
  1.There are residual liquids and gases in the guide pipe;
  2.circuit board fault;
  3.negative guide pipe primary valve is not opened or not fully opened;
  4.negative pressure pipe leakage;
  5.safety grid fault;
  6.DCS range setting is too large;
 
  三、输出过小
  Third,too small output
 
  1、正导压管堵;
  2、平衡阀漏或者没关死;
  3、电路板故障;
  4、正导压管一次阀没开或者是没开全;
  5、正压管泄露;
  6、安全栅故障;
  7、DCS量程设置过小;
 
  1.Plugging of positive pressure guide pipe;
  2.Leakage or not closing of balance valve;
  3.Circuit board fault;
  4.Primary valve of positive pressure guide pipe is not opened or not fully opened;
  5.Leakage of positive pressure pipe;
  6.Safety grid fault;
  7.DCS range setting is too small;
 
  四、输出不稳定
  IV.Output instability
 
  1、导压管中有残存液体、气体;
  2、被测介质有波动;
  3、输出回路中有接触不良或断续短路;
  4、接线松动;
  5、内部接插件接触不良;
  6、压力传感器损坏;
  7、电路中有多处接地;
 
  1.There are residual liquids and gases in the guide pipe;
  2.There are fluctuations in the measured medium;
  3.There are bad contacts or intermittent short circuit in the output circuit;
  4.loose wiring;
  5.bad contacts of internal connectors;
  6.damage of pressure sensors;
  7.there are many grounding points in the circuit;