I. Fault phenomenon: no output signal of pressure switch
1. Reason analysis:
(1) The micro switch is damaged (2) The switch setting value is too high (3) The wire contact that is connected to the micro switch is not connected well. (4) The pressure sensitive part is poorly assembled, and there is a stuck phenomenon (5) Damaged pressure element
2. Solution:
(1) Replace the micro switch (2) Adjust to the appropriate setting value (3) Reconnect to make the contact good (4) Reassemble to make the action sensitive (5) Replace the pressure sensitive component 2. Fault phenomenon: Poor sensitivity of the pressure switch
1. Cause analysis (1) Poor assembly/transmission mechanism (jack or plunger, etc.) excessive friction (2) Micro-switch contact stroke is too long (3) Adjustment screw, ejector pin adjustment, etc. (4) Improper installation , such as uneven installation and tilting
2. Solution:
(1) Re-assembly to make the action sensitive (2) Reasonably adjust the contact stroke of the micro-switch (3) Reasonably adjust the position of the nail and the ram (4) Change to vertical or horizontal installation III. Fault phenomenon: The pressure switch signals too fast
1. Reason analysis:
(1) The inlet orifice is large (2) The diaphragm is broken (3) The system impact pressure is too high (4) The electrical system is designed incorrectly
2. Solution (1) The damping hole is appropriately reduced, or a damping tube is added to the control line. (2) Replace the isolation diaphragm. (3) Add a damping tube to the control line to reduce the impact pressure. (4) Design according to the process requirements. Electrical System