Fault diagnosis of pneumatic butterfly valve suspension system:
1. Fault codes can be retrieved;
2. It can also be judged simply by observing the condition of the indicator light of the pneumatic butterfly valve. The light usually has four conditions: off, fast flashing, slow flashing and always on. Off indicates that the system is normal and stops working. Flash twice per second, which means the system is working normally. Air leakage analysis and judgment of pneumatic butterfly valve suspension system.
3. In humid and corrosive gas environment, the junction of conductor is oxidized, and a layer of oxide is easily formed on the conductor. The conductivity of this oxide is very poor. For example, the conductor in the electroplating workshop of a factory has been corroded by acid gas for a long time, and an oxide layer is formed on the surface of the conductor, which leads to the increase of contact resistance, the rise of temperature after power on, and even the appearance of red conductor in serious cases. Fortunately, the discovery was timely, and no accident occurred in the end.
4. Dust pollution at construction sites and other open places will often make soil and dust penetrate into the joints of conductors, affect the contact between conductors, overheat the joints, and burn combustible materials nearby.