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Vibration Testers - Basic Guide

Fluke redefines mechanical troubleshooting with a revolutionary product: Fluke 810 Vibration Tester, the most advanced troubleshooting tool for mechanical maintenance teams who need an answer NOW…

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Vibration Testers - Basic Guide

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  1. VIBRATION TESTER – BASIC GUIDE

  2. What is a Vibration Tester? The Vibration Meter is a screening tool for bearings and overall vibration measurements on machines. The Meter includes these features: • Overall vibration measurement • Bearing health measurement with Crest Factor+ • On-screen severity scales • Acceleration, Velocity, and Displacement units of measure • Belt Holster • External accelerometer support http://www.fluke.com/fluke/inen/products/categoryvibration

  3. Measurements using Vibration Tester The Meter measures bearing health and the overall vibration condition of a machine. Three types of measurements are available: bearing vibration, overall vibration, and temperature. Vibration measurement units are user-selectable. For the best measurements, use these guidelines: • Push N and position the Meter perpendicular to the test surface. • Push the sensor tip onto the test surface, on solid metal, and as close to the bearing as possible until the green LED turns on. • Hold Meter in position with a consistent force until the green LED turns off. The test results show on the display. http://www.fluke.com/fluke/inen/products/categoryvibration

  4. Crest Factor+ (High Frequency Measurement) Crest Factor is the ratio of the peak value / RMS value of a time domain vibration signal. The Crest Factor increases during initial bearing Degradation when the peak value increases. It then decreases as the bearing damage worsens and the RMS value increases. A low Crest Factor value could show a healthy bearing or a significantly degraded bearing. The problem is to know the difference between the two. The Meter operates with a proprietary algorithm, Crest Factor+ (CF+), to overcome this limitation. To make interpretation easy for the user, the CF+ value shows in a range from 1 to 12. The higher the CF+ value is, the more the bearing damage. CF+ Severity 1 to 3 Good 4 to 6 Satisfactory 7 to 9 Unsatisfactory 10 to 12 Unacceptable http://www.fluke.com/fluke/inen/products/categoryvibration

  5. Overall Vibration (Low Frequency)Measurement with Severity Scale An overall vibration, or low frequency, measurement includes a severity scale. The severity scale is an onscreen tool that interprets the vibration wear as good, satisfactory, unsatisfactory, or unacceptable. For this measurement, you must set the Meter to recognize the type of machine, or Machine Category, for the test. A list of the most common categories is programmed into the Meter. Keep in mind when you use the severity scales: • The severity scales are only applicable to machines at speeds from 600 RPM to 10,000 RPM. • Make measurements with the accelerometer as close as possible to the bearing housing. • The severity scales are not applicable if the machine is installed on spring or pad isolators. • Severity scales for motors match the machine that they operate. For example, when you do a test on a motor that operates a centrifugal pump, select the applicable centrifugal pump Machine Category for all test points on the motor and pump. http://www.fluke.com/fluke/inen/products/categoryvibration

  6. Vibration Testers by FLUKE Fluke 805 Vibration Meter http://www.fluke.com/fluke/inen/products/categoryvibration

  7. Why Choose Fluke? • A meter – that measures overall vibration as well as specific variables like bearing condition and temperature, to provide a more complete picture. • A combination vibration and force sensor tip that compensates for user variance (force or angle) yielding accurate, repeatable readings. • A four-level severity scale and onboard processor calculate bearing condition and overall vibration using easy-to-understand textual alerts (Good, Satisfactory, Unsatisfactory, Unacceptable). • Sensor sensitivity can read a wide range of frequencies (10 to 1,000 Hz and 4,000 to 20,000 Hz) covering most machine and component types. • Straight-forward user interface that minimizes the user inputs to RPM range and equipment type. http://www.fluke.com/fluke/inen/products/categoryvibration

  8. Company Name : Fluke Corporation - India • Website: http://www.fluke.com/fluke/inen/home/default.htm • Address: Division of DHR Holding India Pvt. Ltd. 10th Floor, SigmaHiranandani Business Park, Powai Mumbai, Maharashtra 400076 • ContactNumber: 1 800 209 9110

  9. Thank You

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