Fluke Vibration Meter
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The reliable, repeatable, 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, severity-scaled readings of overall vibration and bearing condition. External sensor is also available to measure overall vibration but it’s an optional accessory.
What makes the 805 the best choice?
A meter – not a pen – 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.
Features and Benefits
Innovative sensor design helps minimize measurement variations caused by device angle or contact pressure
Consistent data quality at both low and high frequency ranges
Four-level scale indicates severity of problems for overall vibration and bearing condition
Exportable data via USB
Trending in Microsoft® Excel using built-in templates
Overall vibration measurement (10 Hz to 1,000 Hz) for acceleration, velocity and displacement units of measurement for a wide variety of machines
Crest Factor+ provides reliable bearing assessment using direct sensor tip measurements between 4,000 Hz and 20,000 Hz
Colored lighting system (green, red) and on-screen comments indicate how much pressure needs to be applied to take measurements
Temperature measurement with Infrared Temperature Sensor increases diagnostic capabilities
On-board memory holds up to 3,500 measurements
Audio output for listening to bearing tones directly
External accelerometer support for hard to reach locations
Flashlight for viewing measurement locations in dark areas
Large screen with high resolution for easy navigation and viewing
Use the 805 to check the following machine categories: (37 machine categories totally)
Chiller (refrigeration)
Reciprocating (Open motor and compressor separate)
Reciprocating (Hermetic motor and compressor)
Centrifugal (Hermetic or Open Motor
Fans
Belt-driven Fans 1800 to 3600 RPM
Belt-driven fans 600 to 1799 RPM
General direct drive fans (direct coupled)
Vacuum blowers (belt or direct drive)
Large forced draft fans (fluid film brgs.)
Large induced draft fans (fluid film brgs.)
Shaft-mounted intergral fan (extended motor shaft)
Axial flow fans (belt or direct drive)
Cooling tower drives
Long, hollow drive shaft (motor)
Belt drive (motor and fan - all arrangements)
Direct drive (motor and fan - all arrangemetns
Centrifugal Pumps
Note: height is measured from grade to top motor bearing
Vertical pumps (12’ to 20’ height)
Vertical pumps (8’ to 12’ height)
Vertical pumps (5’ to 8’ height)
Vertical pumps (0’ to 5’ height)
Horizontal centrifugal end suction pumps – direct coupled
Horizontal centrifugal double suction pumps – direct coupled
Boiler feed pumps (turbine or motor driven)
Positive Displacement Pumps
Positive displacement horizontal piston pumps (under load)
Positive displacement horizontal gear pumps (under load)
Air compressors
Reciprocating
Rotary screw
Centrifugal with or without external gearbox
Centrifugal – internal gear (axial meas.)
Centrifugal – internal gear (radial meas.)
Blowers
Lobe-type rotary blowers (belt or direct drive)
Multi-stage centrifugal blowers (direct drive)
Generic gearboxes (rolling element bearings)
Single stage gearbox
Machine tools
Motor
Gearbox input
Gearbox output
Spindles – roughing operations
Spindles – machine finishing
Spindles – critical finishing
What is Crest Factor+?
Crest Factor+ is a new proprietary algorithm (or technology) that takes the confusion out of bearing assessment. 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 the original Crest Factor algorithm is that it does not increase linearly as the bearing degrades, making it very difficult to determine the severity of mechanical issues. 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, ensuring the user is easily able to recognize the severity of the problem. To make things even simpler, Fluke has also included a four-level severity scale that identifies the bearing health as Good, Satisfactory, Unsatisfactory or Unacceptable.
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