How we look after machinery is very similar to how we look after ourselves. Just like in the human body, machines give off lots of signs as their condition and performance deteriorates. We all become the subject of condition monitoring when we go to the doctor for a health check. The recording of blood pressure, weight, lung capacity etc are all designed to keep our bodies healthy by spotting any problems early.
Similarly, by using various process parameters (e.g. pressure, temperature, vibration, flow) and material samples (e.g. oil) to monitor conditions in machines, we can measure equipment health, performance, integrity and strength to schedule timely corrective action.