Condition monitoring is a process of using a technology to detect changes in machine health over time. The frequency with which one takes measurements will depend on the machine, its current condition, and how quickly it degrades. Typically, one will test a machine more frequently (perhaps monthly) in the early stages of the monitoring program in order to develop a baseline and verify that the machine's health condition is stable. If the machine seems to be stable and healthy, then the test frequency might be reduced to one test per quarter for a typical piece of rotating machinery.

At some point the machine will begin to experience wear. Perhaps one will see bearing tones beginning to appear in the vibration spectrum. At this point one will want to increase the test frequency in order to better monitor changes in the machine's condition. If the machine was being tested once per quarter, perhaps one will begin testing it every two months. As the condition of the machine continues to worsen, the test frequency should be increased in order to detect any additional changes and avoid catastrophic failure. If one really wants to push the machine to its limits one might even test it daily up until the point of overhaul. After overhaul, the machine should be tested immediately for quality assurance purposes. It may be wise to test the machine a few times just after installation or overhaul to make sure the machine has been installed correctly. The important point here is that the test frequency should vary depending on the machine's condition. This variability needs to be written into your PM tasks appropriately.

Tip submitted by, Alan Friedman, Senior Instructor, Mobius Institute

Upcoming Events

August 9 - August 11 2022

MaximoWorld 2022

View all Events
80% of newsletter subscribers report finding something used to improve their jobs on a regular basis.
Subscribers get exclusive content. Just released...MRO Best Practices Special Report - a $399 value!
“Steel-ing” Reliability in Alabama

A joint venture between two of the world’s largest steel companies inspired innovative approaches to maintenance reliability that incorporate the tools, technology and techniques of today. This article takes you on their journey.

Three Things You Need to Know About Capital Project Prioritization

“Why do you think these two projects rank so much higher in this method than the first method?” the facilitator asked the director of reliability.

What Is Industrial Maintenance as a Service?

Industrial maintenance as a service (#imaas) transfers the digital and/or manual management of maintenance and industrial operations from machine users to machine manufacturers (OEMs), while improving it considerably.

Three Things You Need to Know About Criticality Analysis

When it comes to criticality analysis, there are three key factors must be emphasized.

Turning the Oil Tanker

This article highlights the hidden trap of performance management systems.

Optimizing Value From Physical Assets

There are ever-increasing opportunities to create new and sustainable value in asset-intensive organizations through enhanced use of technology.

Conducting Asset Criticality Assessment for Better Maintenance Strategy and Techniques

Conducting an asset criticality assessment (ACA) is the first step in maintaining the assets properly. This article addresses the best maintenance strategy for assets by using ACA techniques.

Harmonizing PMs

Maintenance reliability is, of course, an essential part of any successful business that wants to remain successful. It includes the three PMs: predictive, preventive and proactive maintenance.

How an Edge IoT Platform Increases Efficiency, Availability and Productivity

Within four years, more than 30 per cent of businesses and organizations will include edge computing in their cloud deployments to address bandwidth bottlenecks, reduce latency, and process data for decision support in real-time.

MaximoWorld 2022

The world's largest conference for IBM Maximo users, IBM Executives, IBM Maximo Partners and Services with Uptime Elements Reliability Framework and Asset Management System is being held Aug 8-11, 2022