天津国产压力变送器,差压变送器常见故障分析! |
信息来源: 差压变送器生产 | 2019-05-13 点击量: 5824 |
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;