Fluke 805 FC Vibration Meter (vibration and bearing condition tester)

Portable vibration tester for evaluating rotating machinery and bearing condition using a four-level fault severity scale ranging from good to unacceptable. It measures overall vibration as acceleration, velocity and displacement, and assesses bearing condition with its proprietary Crest Factor+ algorithm in the high-frequency band.

Unlike basic vibration meters, its sensor design reduces the effects of measurement angle and contact force, indicates correct probe pressure and incorporates an infrared thermometer for simultaneous temperature measurement. Readings can be transferred to an Excel template or Fluke Connect to create trend histories for each machine.

In rolling-stock undercarriages and onboard equipment, the tester is used for traction and auxiliary motors, compressors, converter cooling fans and pumps. An optional external sensor reaches points inaccessible to the measuring tip. Comparison with ISO 20816 requires selecting the appropriate machine group in the template.

Specifications (Fluke 805 FC, from the datasheet):

• Overall vibration frequency range - 10 Hz to 1000 Hz; bearing condition (CF+) band - 4000 Hz to 20,000 Hz
• Sensor measurement range - 0.01 g to 50 g, 0.01 g resolution, accuracy ±5% at 100 Hz
• Units - g, m/s²; mm/s, in/s; mm, mil
• Infrared thermometer - –20 °C to +200 °C, accuracy ±2 °C
• External sensor (optional Fluke-805ES) - 10–1000 Hz
• Memory - up to 3,500 measurements; USB 2.0 interface
• Standards-based comparison - ISO 20816-1, 20816-3, 20816-7 (Excel template)
• Operating temperature - –20 °C to +50 °C; IP54 rating; 1 m drop
• Power - 2 lithium AA batteries; weight 1.16 kg