Fluke 805 Vibration Meter
Innovative sensor design minimizes measurement variations caused by device angle or contact pressure
- Part number Fluke-805
- Manufactured by Fluke
- Low frequency range:10 Hz to 1,000 Hz
- High frequency range: 4,000 Hz to 20,000 Hz
- Crest Factor+ technology
- Four-level severity scale
- Exportable data via USB
- Trending in Microsoft® Excel using built-in templates
- saves up to 3,500 measurements
The Fluke 805 Vibration Meter is reliable, repeatable and accurate way to check bearings and overall vibration. Make go or no-go maintenance decisions with confidence. The Fluke 805 Vibration Meter is the most reliable vibration screening device available for frontline mechanical troubleshooting teams that need repeatable, severityscaled readings of overall vibration and bearing condition.
Machine category applications:
- Chiller (refrigeration)
- Cooling tower drives
- Centrifugal pumps
- Positive displacement pumps
- Air compressors
- Generic gearboxes
- Machine tools
The Fluke 805 comes with Crest Factor+ which takes the confusion out of bearing assessments. The original Crest Factor is used by vibration analysts to identify bearing faults. It is defined as the ratio of the peak value/RMS value of a time domain vibration signal.
A key limitation of using Crest Factor to identify bearing faults is that the Crest Factor does not increase linearly as the bearing degrades. In fact, the Crest Factor can actually decrease as a bearing nears catastrophic failure due to large RMS values.
In order to overcome this limitation, Fluke uses a proprietary algorithm known as Crest Factor + (CF+). CF+ values range from 1 to 16. As the bearing condition worsens, the CF+ value increases. To keep things simple, Fluke has also included a four-level severity scale that identifies the bearing health as Good, Satisfactory, Unsatisfactory or Unacceptable.
Import measurements from the 805 Vibration Meter to an Excel template on your PC in order to trend the bearing parameters: overall vibration, CF+, and temperature. Looking at just the number alone for the overall vibration or temperature might not be of much benefit to the operator or technician if they don't know what the number means. The user may not know what is normal or what indicates a problem.
If measurements taken on the operator rounds are easily loaded into Excel, then the trend will show patterns of something that is becoming abnormal. The user can now see a clear picture of the changing bearing condition and deteriorating health of the machine.