天津國產壓力變送器,差壓變送器常見故障分析!
信息來源: 華恒 | [ 2019-05-13 ] 點擊量: 281

   壓力變送器常見故障分析!西安華恒儀表制造有限公司為您介紹:

 
  Pressure transmitter common fault analysis!Xi'an Huaheng Instrument Manufacturing Co.,Ltd.
 
  一:無輸出
  One:No Output
 
  1、導壓管開關沒有打開;
  2、導壓管路堵塞;
  3、供電電源過低;
  4、供電電源接錯;
  5、儀表輸出回路故障;
  6、安全柵故障;
  7、表頭故障、無法顯示;
  8、內部插件接觸不良;
  9、電路板故障
 
  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、輸出過大
  Excessive Output
 
  1、導壓管中有殘存液體、氣體;
  2、電路板故障;
  3、負導壓管一次閥沒開或者是沒開全;
  4、負壓管泄露;
  5、安全柵故障;
  6、DCS量程設置過大;
 
  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、輸出過小
  Third,too small output
 
  1、正導壓管堵;
  2、平衡閥漏或者沒關死;
  3、電路板故障;
  4、正導壓管一次閥沒開或者是沒開全;
  5、正壓管泄露;
  6、安全柵故障;
  7、DCS量程設置過小;
 
  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、輸出不穩定
  IV.Output instability
 
  1、導壓管中有殘存液體、氣體;
  2、被測介質有波動;
  3、輸出回路中有接觸不良或斷續短路;
  4、接線松動;
  5、內部接插件接觸不良;
  6、壓力傳感器損壞;
  7、電路中有多處接地;
 
  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;
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