To detect problems, the professional “listens” in many ways:
• With eyes and ears, to see and hear conditions that may indicate problems
• With thermometers and thermal imagers, to detect overheating, poor electrical connections or failing bearings
• With digital multimeters and power analyzers, to diagnose electrical problems
• Using techniques like lubricant analysis, to gauge machine condition over time
And now the maintenance professional has a valuable new way not just to listen, but to find mechanical problems and fixes. The Fluke 810 Vibration Tester troubleshooting tool is engineered to detect and evaluate machine vibration immediately and recommend any needed repairs.
The handheld Fluke 810 is designed and programmed to diagnose the most common mechanical problems of unbalance, looseness, misalignment and bearing failures in a wide variety of mechanical equipment, including motors, fans, blowers, belts and chain drives, gearboxes, couplings, pumps, compressors, closed coupled machines and spindles.
Many professionals may think there are only two options for vibration testing; high end vibration analyzers that are expensive and difficult to use, and low-end vibration pens which aren’t particularly accurate. The Fluke 810 fills the middle of the category as it combines the diagnostic capability of a trained vibration analyzer with the speed and convenience of lower-end testers, at a reasonable price, the company says.
The diagnostic technology in the Fluke 810 analyzes machinery condition and identifies faults by comparing vibration data to an extensive set of rules and algorithms developed over years of field experience. The unit determines fault severity using a unique technology to simulate a fault-free condition and establish a baseline for instant comparison to gathered data. This means that every measurement taken is compared to a “like new” machine.
When it detects a fault, the vibration tester identifies the problem, its location and severity on a four-level scale to help the maintenance professional prioritize maintenance tasks. It also recommends repairs. Context-sensitive on-board help provides new users with real-time guidance and tips.
Mechanical diagnosis with the tester begins when the user places the Fluke tri-axial TEDS accelerometer on the machine under test. The accelerometer has a magnetic mount and can also be installed by attaching a mounting pad using adhesive. A quick-disconnect cable connects the accelerometer to the tester. As the machine under test operates, the accelerometer detects its vibration along three planes of movement (vertical, horizontal and axial) and transmits that information to the unit. Using a set of advanced algorithms, the vibration tester then provides a plain-text diagnosis of the machine with a recommended solution.
Mechanical equipment is typically evaluated by comparing its condition over time to an established baseline condition. Vibration analyzers used in condition-based monitoring programs rely upon these baseline conditions to evaluate machine condition and estimate remaining operating life. System operators must have considerable training and experience before they can determine the meaning and significance of the vibration spectra they detect.
But what about the maintenance pro who isn’t trained in vibration analysis? How do you tell the difference between acceptable vibration, and the kind of vibration that demands immediate attention to service or replace troubled equipment?
Extensive experience with mechanical vibration, what it means and how to fix it is built into the advanced algorithms of the Fluke 810. Now the maintenance professional can quickly and reliably determine the cause of the machine vibration, learn the severity and location of the problem and receive recommendations for repair. It’s all done with the intelligence built into the tester, without the extensive training, monitoring and recording required for typical vibration monitoring programs.
The Fluke 810 delivers plain language recommendations about what to do next. For equipment maintenance teams hard pressed and on the go, these precise directions are what they need to take action now, maintain mechanical equipment in top shape, and keep facilities productive.
The article was excerpted from the Fluke white paper, The Fluke Vibration Tester: A new and better way to troubleshoot machine problems. See the full version at http://ow.ly/5670a.
Vibration testing is the better way to troubleshoot machine problemsJune 07, 2011 Written by Fluke
To the savvy maintenance professional, industrial machinery almost “talks” to reveal its condition. The key to success is in understanding what the machine is saying.
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