Condition Based Monitoring - CBM
“Minimise risk through early fault detection”
Condition Based Monitoring is the process of monitoring parameters of conditions in machinery such as current, vibration & temperature in order to identify changes which is indicative of a developing fault. It is a major component of predictive maintenance.
CBM allows maintenance to be scheduled based on equipment condition and not time so actions can be taken to prevent failure and avoid its consequences.
CBM has a unique benefit in that conditions that would shorten normal lifespan can be addressed before they develop into a major failure.
CBM techniques are normally used on rotating equipment and other machinery (pumps, electric motors, internal combustion engines, presses)
- Water Pumps
- Water Chillers
- Vacuum Pumps
- Refrigeration Systems
- Air Conditioning Systems
- Boilers and Heating Systems
To avoid large penalties due to unscheduled down time
Customer requirements and system
Equipment maintenance and Avoid downtime
- Ability to retrofit onto already deployed equipment
- Continuously monitor equipment
- Use analytics to not only detect failures but also to predict failures before they occur
- Quick access to data and alert notification; access to data where ever you may be
Items to monitor on industrial equipment;
- Temperature – bearing wear
- Vibration – bearing or pulley wear
- Current – load missing, brown out
- Levels – low/missing lubricant
- Water Flow – Pump performance
- Air Flow – Filter performance
CBM in action
We are looking for early fault detection – not when there is a Catastrophic failure — through sensor information.
We can use that information to improve our maintenance planning.
We can avoid secondary damage or collateral damage – if the bearing fails the shaft or seals may be damaged….. we get to avoid this
We can reduce our inventory of spares because we have more confidence , we will detect faults early enough that we will have ordered the spare that we need……. we know we have enough time to get that into our stores so rather than having it on our shelves which is costing us money and there is the potential for that part to degrade over time …there is large cost saving here
and there are fewer safety incidents as well …both in terms of the equipment failing which can have a ripple effect for safety and environmental point of view … we can plan our maintenance better …we will have more time to plan the maintenance and have a better idea of what’s wrong with the machine so there is less time spent at the machine and that reflects improved safety