Protection systems in an industrial plant serve one important function. They protect your assets (and nearby machinery, the environment, and personal safety) from catastrophic failure. If any service has to be done to the monitoring system, however, this work could in itself trigger a machine shutdown.
What is MOS?
This is where the MOS comes into play, also referred to as a maintenance bypass switch. Located inside the same cabinet as your machinery protection system, its function is not as complicated as it sounds. It bypasses the alarms or trip alerts from your vibration protection system.
Why do we actually need such a switch? Oftentimes, the protection system can run for many years without any opportunity to do maintenance work on it. However, a MOS allows you to create a bypass to pull the machinery protection system out of the trip logic for a machine. For example, if you want to replace a monitor module. With the MOS, this service can be done without an unplanned machine trip.
A machine trip can be costly
When a unit trips it can be very costly and time-consuming. You can experience downtime in production or thousands of people could end up without power or water. It does not only create unnecessary expenses for maintenance and lost production, but it can also take a long time to restart a unit. You have probably experienced before how long it can take to get some machines to start up again and the lengthy process that comes with it. A MOS could save you from all these headaches.
Sometimes, simple, inexpensive solutions can save you valuable time and make your plant more safe and reliable, so you can continue what you love to do with peace of mind.
Listen to the full interview here Reliability Radio |EP 241: Callis Ogles and Jeremy Morton
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