UE开关的故障处理H100-171带截止阀（Troubleshooting of UE switch H100-171 with stop valve ）

Troubleshooting of UE switch H100-171 with shut-off valve Practice has proved that having a shut-off valve in the switch can effectively help the trouble-shooting of the pressure switch for daily maintenance. , Operator safety. Troubleshooting 1. Fault phenomenon:  The pressure switch has no output signal Reason analysis: (1) The micro switch is damaged (2) The switch setting value is adjusted too high (3) The wire contact connected to the micro switch is not connected properly (4) The pressure-sensitive part is poorly assembled and stuck (5) The pressure sensitive element is damaged Solution: (1) Replace the micro switch (2) Adjust to the appropriate setting value (3) Reconnect to make good contact (4) Reassembled to make the action sensitive (5) Replace the pressure sensitive element 2. Fault phenomenon:  poor sensitivity of pressure switch Cause Analysis (1) Poor assembly / excessive friction of transmission mechanism (rod or plunger, etc.) (2) The contact stroke of the micro switch is too long (3) Improper adjustment of adjustment screws, ejector rods, etc. (4) Improper installation, such as uneven and inclined Install workaround: (1) Reassembled to make the action sensitive (2) Reasonably adjust the contact stroke of the micro switch (3) Reasonably adjust the position of the nail and ejector rod (4) Changed to vertical or horizontal installation 3. Fault phenomenon: Pressure switch signaling too fast Cause Analysis (1) The oil inlet damping hole is large (2) The isolation diaphragm is broken (3) The impact pressure of the system is too large (4) The design of the electrical system is wrong Solution (1) The damping hole should be appropriately reduced, or a damping tube should be added to the control pipeline (2) Replace the isolation diaphragm (3) Add a damper tube to the control pipeline to reduce the impact pressure (4) Design the electrical system according to the process requirements 

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