Predictive maintenance (PdM) means determining what is wrong with a machine before it fails, and taking pre-emptive steps to prevent such a failure. Effective condition monitoring, a very important component of PdM, allows maintenance to be scheduled on a machine before it fails, saving time and money. Predictive maintenance should be looked at as the ideal operating goal for a facility as opposed to reactive maintenance, which as the name implies puts maintenance crews on the wrong side of machine failure. The four primary benefits of predictive maintenance are:
Route-based vibration analysis is the practice of following a planned route through a facility, taking prescribed vibration measurements from machines along the route at regular intervals (often weekly, monthly, quarterly, or bi-annually). Route-based vibration analysis, a component of predictive maintenance, helps members of the reliability department establish patterns and trends among the measured machines, which in turn help highlight defects or irregularities.
Dynamic data means spectral and time wave data is represented, instead of just overall vibration values.
A tool that is intrinsically safe can be operated in hazardous areas without fear of ignition or combustion. Electrical equipment that is NOT intrinsically safe creates tiny electric arcs in switches, motor brushes, etc. that can potentially ignite in hazardous areas. In intrinsically safe devices these arcs are minimized or completely absent, rendering them safe from ignition.
In North America, intrinsically safe devices are rated based on the level of hazardous environment in which they can safely operate. The strictest intrinsically safe classification is Class 1, Division 1, meaning the device could operate in an area where an explosive mixture is continuously present or present for long periods.