Condition Based Monitoring Techniques
Faults in complex assets cannot be detected with visual monitoring only. They require special predictive maintenance techniques. Condition based monitoring techniques use various methodologies including visual inspections, tests, and different types of data obtained from sensors or equipment. This data indicates when, how and why an equipment might fail. This information is helpful in scheduling the maintenance work before the problem can arise and affect the operations.
Even a simple vibrations sensor can detect and indicate a developing fault. A machine may vibrate during operation but if it starts vibrating more than the standard rate of vibration, then it indicates a problem in it. This excess vibration is picked up by the sensor and relayed to the administrator who can take appropriate steps to solve the problem. Some experts differentiate between predictive and condition based maintenance while others use both terms interchangeably. The conditional diagnostics uses predictable pattern and complex predictive formulas to predict when a device is going to fail.