天津压力变送器标准,涡街流量计流量显示不准确故障解决!-西安华恒仪表制造有限公司
天津压力变送器标准,涡街流量计流量显示不准确故障解决!
信息来源: 华恒 | [ 2019-05-14 ] 点击量: 144

   天津压力变送器标准,涡街流量计流量显示不准确故障解决!西安华恒仪表在线解答:在我们使用涡街流量计时,会出现涡街流量计在管道中有介质流动而无信号输出或瞬时流量无显示的现象出现,在这种情况下,我们要怎么去应对呢?

 
  Tianjin Pressure Transmitter Standard,Vortex Street Flowmeter Flow Display Accurate Trouble Solution!Xi'an Huaheng Instrument Online Answer:When we use Vortex Street Flow Timing,there will be a phenomenon that Vortex Street Flow Meter has medium flow in the pipeline without signal output or instantaneous flow without display.In this case,how should we deal with it?
 
  首先检查电路接线及电源电压是否正确;
 
  First,check whether the circuit connection and power supply voltage are correct.
 
  确认管道中确实有流量,且大于可测流量下限;
 
  It is confirmed that there is flow in the pipeline,and it is larger than the lower limit of measurable flow.
 
  检查小流量切除值的设定是否过大;
 
  Check whether the setting of small flow resection value is too large.
 
  如果电路接线及电源电压正确,将灵敏度电位器及放大倍数电位器顺时针调到底。
 
  If the circuit connection and power supply voltage are correct,adjust the sensitivity potentiometer and amplification multiple potentiometer clockwise to the end.
 
  如果流量仍无显示,累积量又无变化,说明电路板有问题,则需更换放大板;
 
  If the flow rate is still not shown and the cumulative amount remains unchanged,indicating that there is a problem with the circuit board,the amplifier board needs to be replaced.
 
  如果有信号输出,则应检查管道中介质流量是否超出涡街流量传感器的可测流量范围;
 
  If there is a signal output,it should check whether the medium flow in the pipeline is beyond the measurable flow range of the vortex flow sensor.
 
  如果介质流量在可测范围内,说明传感器的传感头灵敏度已偏低,需重新调整灵敏度;
 
  If the medium flow rate is within the measurable range,the sensitivity of the sensor head is on the low side and needs to be readjusted.
 
  检查传感器好坏。将传感头两引线从放大板上拆下,用万用表测量传感头两引线之间的阻值和传感头两引线分别对外壳的阻值,都应大于2MΩ,否则需更换传感头;
 
  Check the sensor.Remove the two lead wires of the sensing head from the amplifier board,and measure the resistance between the two lead wires of the sensing head and the resistance of the two lead wires of the sensing head to the shell respectively with a multimeter.The resistance values of the two lead wires of the sensing head should be greater than 2M,otherwise the sensor head should be replaced.
 
  如果传感器没有问题,则检查压力变送器和铂热电阻是否损坏,如果都没有问题,则可判断智能流量积算仪损坏。
 
  If there is no problem with the sensor,check whether the pressure transmitter and platinum resistance are damaged or not.If there is no problem,the damage of the intelligent flow accumulator can be judged.