Maintenance, Test & Measurement, Calibration


Measure bearing vibration and temperature

June 2020 Maintenance, Test & Measurement, Calibration

Vibration in rotating machinery is merely the back and forth movement, or oscillation, of a machine and components, such as drive motors, driven devices (pumps, compressors, etc.), and the bearings, shafts, gears, belts and other elements that make up mechanical systems.

Vibration itself is not a problem. Excess vibration, however, is a symptom of internal issues, such as bearing failures, imbalance, misalignment and looseness, which shorten equipment lifespan. More than half of unplanned downtime is attributed to mechanical failures. While many things can impact the life of a machine, once the first signs of failure appear, it generally has only a matter of months before failing completely. Vibration testing provides a way to determine where a machine is on the failure curve, allowing maintenance teams to react as needed. The higher the overall vibration of a machine the worse the condition is. Comtest has on offer the Fluke 805 vibration meter that measures overall vibration, bearing vibration and temperature simultaneously.

Bearing condition is assessed automatically with the use of Crest Factor Plus (CF+) and temperature is often used as a second measurement that confirms the bearing assessment based on vibrations. With Fluke Connect for the FC enabled models, or a free Excel template, trend plots on all available parameters are easily created. Overall vibration values are used to create trend plots that help to predict the condition of a machine and to plan maintenance. Machine condition of most common machinery can be determined instantly with alarm levels that are programmed in the product.

Users such as frontline mechanical troubleshooting teams and machine operators of high-end process facilities (petrochemical, pulp and paper, primary metals, utilities, food, product, etc.) are very specific about inconsistencies in results when using vibration screening devices. Fluke 805 promises reliable, repeatable results thanks to the innovative sensor and sensor tip design that minimises measurement variations caused by angle or pressure. This unique sensor design compensates for the pressure applied during measurement and provides reliable results both for overall vibration (10 Hz to 1000 Hz) and bearing measurements (4000 Hz to 20 000 Hz).

The vibration meter provides a four-level severity scale (good, satisfactory, unsatisfactory and unacceptable) for both overall vibration and bearing condition. Rather than seeing unexplained lights or numerical indications, users can easily assess the severity of the situation with the Fluke 805’s text-based alerts.

The instrument can hold up to 3500 measurements, and if long-term trending is required, users can easily export data through a USB connection. No special software is needed because the product is shipped with a disk containing prebuilt Excel templates.

For more information contact Comtest, +27 10 595 1821, sales@comtest.co.za, www.comtest.co.za


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Ore sampling like never before
July 2020 , Maintenance, Test & Measurement, Calibration
With the general decline in ore grades in mining, FLSmidth’s market-leading expertise in mineral sampling and laboratory automation holds increasing value to mines. “The more you understand about ...

Read more...
Closed panel electrical inspection
July 2020, R&C Instrumentation , Maintenance, Test & Measurement, Calibration
When electrical distribution equipment fails, the results can be catastrophic to a company as workplace injuries and fatalities could occur. A company’s profit margin can be negatively impacted by unscheduled ...

Read more...
Speedy valve testing
June 2020, Comtest , Maintenance, Test & Measurement, Calibration
Control valve testing has often meant using complicated testers that require extensive training, the removal of the valve, and often one to two hours of test time on the bench. Comtest now offers Fluke’s ...

Read more...
Visual inspection made easy with SKF stroboscopes
June 2020, SKF South Africa , Maintenance, Test & Measurement, Calibration
A range of handheld, easy-to-use stroboscopes that enable the visual inspection of rotating equipment to be carried out in an economic and timely fashion has been unveiled by SKF. “All rotating equipment ...

Read more...
Essential monitoring solutions
June 2020, Extech Safety Systems , Maintenance, Test & Measurement, Calibration
Meteor Communications’ MCE-MRC-EX is powered by MeteorCloud, a one-stop end user application for complete data visualisation, outstation device control and reporting activities. The remote monitoring ...

Read more...
Taking sampling to new heights
June 2020 , Maintenance, Test & Measurement, Calibration
With the general decline in ore grades in mining, FLSmidth’s market-leading expertise in mineral sampling and laboratory automation holds increasing value to mines. “The more you understand about ...

Read more...
Wireless detection of erosion corrosion
June 2020, Emerson Automation Solutions , Maintenance, Test & Measurement, Calibration
While many forms of corrosion can be anticipated depending on the presence of corrosion causing factors such as H2S, water injection and oxygen in dry pipelines, erosion caused as a result of sand or ...

Read more...
Tektronix and Coherent Solutions partner for integrated optical communications
June 2020, Comtest , News
Comtest has announced that technology companies Tektronix and Coherent Solutions have an exclusive partnership agreement to provide fully integrated optical communications platforms to new and existing ...

Read more...
Bently Nevada’s condition monitoring and protection system
June 2020 , Maintenance, Test & Measurement, Calibration
Why Orbit 60? Why Now? Bently Nevada prides itself on a history of machine protection and condition monitoring solutions. With over 60 years of innovation, over 100 000 rack monitoring systems, and ...

Read more...
Comtest trading for 15 years
May 2020, Comtest , News
Comtest, one of South Africa’s leading providers of test, measurement and communications equipment, is proud to mark its 15-year trading milestone in 2020. CEO Barend Niemand says, “Comtest has representation ...

Read more...