Maintenance Technology September 2016 - 80

19 By using ultrasound technology (along with standard practices such as removing old grease and replacing it with new), technicians can combine standard time-based maintenance with condition-based predictive maintenance, gaining in the process both a clearer picture of what's really going on and improved reliability. How Ultrasound Works Ultrasonic equipment detects airborne and structure-borne ultrasounds normally inaudible to the human ear and electronically "transposes" them into audible signals that a tech can hear through headphones and view on a display panel as various decibel (dB) levels. In some instruments, such as the Ultraprobe® 15,000, the received sound can be viewed on a spectral analysis screen. With this information, a trained technician can interpret the bearing condition in order to determine what, if any, corrective action is needed. Advantages of ultrasound technology include: * It can be used in virtually any environment. * It's relatively easy to learn how to use it. * The technology is relatively inexpensive. * Modern ultrasonic equipment makes it easy to track trends and store historical data. * Ultrasonic technology has proven itself to be extremely reliable in predictive maintenance, saving thousands of dollars and hours of lost productivity. Condition Monitoring & Ultrasound Traditional inspection of electrical components is performed using an infrared camera. Users of this technology rely on images showing temperature changes that may represent electrical anomalies such as tracking and arcing. For mechanical inspection, vibration analysis has been the conventional method of inspection for condition monitoring of rotating equipment. Vibration analysis produces a visual spectrum, or time wave form, that shows any fault harmonics. If the goal is to have a truly world-class predictive maintenance program, the use of multiple technologies is recommended for various inspections. Just as physicians use multiple tools to take vitals and diagnostics to determine aches, pains and abnormalities, maintenance professionals should take the same approach when it comes to assets in facilities. In addition to using infrared and vibration, ultrasound can be used to complement other predictive maintenance (PdM) technologies. Airborne and structure-borne ultrasound imaging give the user an "image" to analyze and aid in diagnosing and confirming mechanical and electrical conditions. Ultrasound technology and instrumentation have evolved into musthave technologies for both condition monitoring and electrical equipment reliability applications. The concept of ultrasound imaging is to record ultrasounds heard via the ultrasound instrument A i r b o r n e a n d st r u c t u re - b o r n e u l t ra s o u n d instruments are an extension of the user's sense of hearing. Similarly: * Vibration feels what you can't feel. * Infrared cameras see what you can't see. * Ultrasound hears what you can't hear. There are sounds taking place in a typical plant and manufacturing environment (machines running, production equipment running, etc.) that cause us to not be able to hear other sounds such as compressed air leaks or electrical discharges, like corona, tracking or arcing. Ultrasound instruments sense and listen for sounds not heard in the audible range. These high frequency sounds are detected by the instrument and translated, through a process called heterodyning, into an audible sound that is heard in the headset by the inspector. WWW.SMRP.ORG 10127-4056 SMRP Solutions SE.indd 19 8/22/16 9:43 AM http://WWW.SMRP.ORG

Table of Contents for the Digital Edition of Maintenance Technology September 2016

Editorial
Uptime
On The Floor
Old-School Approach To New-World Technology
Art Meets Reliability Science
Commit To Safety
Robot-Human Interaction Getting Safer
Sanitary, Stainless Conveyors Not The Same
Reduce Hidden Process-Safety Costs
Pace Your Reliability Program
Win The War With 'Lubrication By Design'
SAP Tips And Tricks
Understand Pump Vibration
Select The Right Relay
Bearing Care
Clear Up HOA Confusion
Potato Waste Becomes Clean Water, Energy
Products
Showcase
Ad Index
Final Thought
Maintenance Technology September 2016 - 1
Maintenance Technology September 2016 - Cover1
Maintenance Technology September 2016 - Cover2
Maintenance Technology September 2016 - 1
Maintenance Technology September 2016 - 2
Maintenance Technology September 2016 - 3
Maintenance Technology September 2016 - Editorial
Maintenance Technology September 2016 - 5
Maintenance Technology September 2016 - Uptime
Maintenance Technology September 2016 - 7
Maintenance Technology September 2016 - On The Floor
Maintenance Technology September 2016 - 9
Maintenance Technology September 2016 - Old-School Approach To New-World Technology
Maintenance Technology September 2016 - 11
Maintenance Technology September 2016 - 12
Maintenance Technology September 2016 - 13
Maintenance Technology September 2016 - 14
Maintenance Technology September 2016 - 15
Maintenance Technology September 2016 - Art Meets Reliability Science
Maintenance Technology September 2016 - 17
Maintenance Technology September 2016 - 18
Maintenance Technology September 2016 - 19
Maintenance Technology September 2016 - Commit To Safety
Maintenance Technology September 2016 - 21
Maintenance Technology September 2016 - 22
Maintenance Technology September 2016 - 23
Maintenance Technology September 2016 - Robot-Human Interaction Getting Safer
Maintenance Technology September 2016 - 25
Maintenance Technology September 2016 - Sanitary, Stainless Conveyors Not The Same
Maintenance Technology September 2016 - 27
Maintenance Technology September 2016 - 28
Maintenance Technology September 2016 - Reduce Hidden Process-Safety Costs
Maintenance Technology September 2016 - 30
Maintenance Technology September 2016 - Pace Your Reliability Program
Maintenance Technology September 2016 - 32
Maintenance Technology September 2016 - 33
Maintenance Technology September 2016 - 34
Maintenance Technology September 2016 - 35
Maintenance Technology September 2016 - Win The War With 'Lubrication By Design'
Maintenance Technology September 2016 - 37
Maintenance Technology September 2016 - 38
Maintenance Technology September 2016 - SAP Tips And Tricks
Maintenance Technology September 2016 - Understand Pump Vibration
Maintenance Technology September 2016 - Select The Right Relay
Maintenance Technology September 2016 - Bearing Care
Maintenance Technology September 2016 - 43
Maintenance Technology September 2016 - Clear Up HOA Confusion
Maintenance Technology September 2016 - Potato Waste Becomes Clean Water, Energy
Maintenance Technology September 2016 - 46
Maintenance Technology September 2016 - 47
Maintenance Technology September 2016 - 48
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Maintenance Technology September 2016 - 50
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Maintenance Technology September 2016 - Showcase
Maintenance Technology September 2016 - Ad Index
Maintenance Technology September 2016 - 55
Maintenance Technology September 2016 - Final Thought
Maintenance Technology September 2016 - Cover3
Maintenance Technology September 2016 - Cover4
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