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The diaphragm pressure switch common failure analysis |
| Author : Xiong Date : 2014/8/8 10:50:05 |
The diaphragm pressure switch common failure analysis
Diaphragm pressure switch is used in corrosive, high viscosity, the high temperature of common pressure switch in bad environment, because the diaphragm pressure switch can be controlled in view of the special medium, its application field is particularly widespread.But if the long-term use of the diaphragm pressure switch, how to find the failure root cause of inaccrate precision
1. The temperature influence
Although the diaphragm pressure switch can be applied in high temperature environment, but if there is no condensing unit in the pressure switch, some extremely high temperature steam or liquid will run into the bourdon tube pressure switch, affected the spring tubes timely action, lead to error, ultimately affect the precision of values.
2. The influence range
Analysis of whether there is a long-term outrange work state, if the diaphragm pressure switch is in a state of overload for a long time, is bound to cause the deformation of the spring, affected the accuracy of measurement.
3. The vibration impact on the environment
Precision instruments and meters, if long-term vibration environment is easy to damage diaphragm pressure switch, too, if not in the vibration environment with fixtures, pressure switch pressure gauge gear will gradually wear and tear, Pointers are also beginning to loose, eventually lead to inaccurate measurements.
The above: Pressure switch control form |
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Pressure switch
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