Fluke 805 FC Vibration Meter for Machine Condition Monitoring

The Fluke 805 FC Vibration Meter is designed for frontline mechanical maintenance teams that need a fast and repeatable way to evaluate machine health and bearing condition. Rather than relying only on subjective vibration checks, the instrument provides severity-scaled measurements that help technicians determine whether equipment conditions are good, satisfactory, unsatisfactory or unacceptable.

The 805 FC is particularly suited to routine predictive maintenance programs where vibration measurements need to be collected consistently and compared over time.

Reliable and Repeatable Vibration Measurement

The 805 FC uses a combination vibration and force sensor design that helps reduce measurement variation caused by differences in probe angle and contact pressure. This allows technicians to obtain more consistent readings during repeated inspections.

The overall vibration measurement range covers 10 Hz to 1,000 Hz, while CF+ high-frequency measurement covers 4,000 Hz to 20,000 Hz for additional bearing-condition information.

Key Specifications

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  Overall vibration frequency range: 10 Hz to 1,000 Hz
  
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  CF+ high-frequency range: 4,000 Hz to 20,000 Hz
  
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  Vibration measurement range: 0.01 g to 50 g
  
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  Vibration resolution: 0.01 g
  
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  Accuracy: ±5% of measured value at 100 Hz
  
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  Severity levels: Good, Satisfactory, Unsatisfactory, Unacceptable
  
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  Infrared temperature range: -20 °C to 200 °C
  
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  IR temperature accuracy: ±2 °C
  
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  Measurement memory: Up to 3,500 measurements
  
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  Protection rating: IP54
  
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  Operating temperature: -20 °C to 50 °C
  
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  Drop resistance: 1 m
  
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  Battery: 2 AA lithium iron disulfide batteries
  
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  Battery life: Approximately 250 measurements
  
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  Weight: Approximately 0.40 kg
  

Overall Vibration and Bearing Condition

The Fluke 805 FC measures overall vibration and provides a four-level severity scale to help maintenance personnel quickly assess machine condition.

Its CF+ measurement extends into the 4 kHz to 20 kHz range, providing additional information about bearing condition that may not be visible from overall vibration measurements alone.

This makes the instrument useful for screening rotating equipment such as:

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  Motors
  
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  Pumps
  
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  Fans
  
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  Gearboxes
  
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  Compressors
  
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  Blowers
  
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  Conveyors
  
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  Other rotating machinery
  

Integrated Infrared Temperature Measurement

The built-in infrared temperature sensor extends the diagnostic capability of the 805 FC beyond vibration measurement.

The infrared thermometer measures from -20 °C to 200 °C with an accuracy of ±2 °C, allowing technicians to compare vibration condition with temperature information during equipment inspections.

Combining vibration and temperature readings can provide a broader view of machine condition and help identify equipment requiring further investigation.

Fluke Connect Wireless Data Access

The 805 FC adds wireless connectivity for use with the Fluke Connect system. Measurement results can be stored and accessed digitally, allowing maintenance teams to share machine condition information and monitor trends remotely.

The instrument also stores up to 3,500 measurements in internal memory, providing sufficient capacity for routine inspection routes and equipment condition databases.

External Sensor Support

For measurement locations that are difficult to access with the standard sensor, the 805 FC supports an external accelerometer. Fluke notes that external sensors are supported but are not supplied with the instrument.

This provides additional flexibility when inspecting equipment installed in confined or difficult-to-reach locations.

Predictive Maintenance Applications

The Fluke 805 FC is designed for machine condition screening and predictive maintenance applications where early identification of abnormal vibration can help maintenance teams plan corrective action.

Typical applications include:

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  Motor condition monitoring
  
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  Pump vibration inspection
  
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  Fan and blower monitoring
  
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  Bearing condition screening
  
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  Gearbox inspection
  
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  Compressor maintenance
  
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  Conveyor equipment inspection
  
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  Preventive maintenance programs
  
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  Predictive maintenance routes
  
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  Mechanical troubleshooting
  
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  Machine health trending
  

Built for Field Maintenance

The 805 FC has an IP54-rated enclosure and is designed to withstand a 1 m drop, making it suitable for routine industrial maintenance work.

Its compact 24.1 × 7.1 × 5.8 cm form factor and approximately 0.40 kg weight make it practical for carrying between multiple inspection points during maintenance rounds.

FAQ

What does the Fluke 805 FC measure?

The Fluke 805 FC measures overall machine vibration, high-frequency CF+ vibration and infrared temperature, while also providing bearing-condition information and machine severity assessment.

What is the vibration frequency range of the Fluke 805 FC?

The overall vibration measurement range is 10 Hz to 1,000 Hz, while CF+ high-frequency measurement covers 4,000 Hz to 20,000 Hz.

Can the Fluke 805 FC measure temperature?

Yes. The built-in infrared thermometer measures temperatures from -20 °C to 200 °C with an accuracy of ±2 °C.

How many measurements can the 805 FC store?

The Fluke 805 FC can store up to 3,500 measurements in its internal memory.

Does the Fluke 805 FC support wireless connectivity?

Yes. The 805 FC supports wireless data access through Fluke Connect, allowing measurement results to be stored and shared digitally.

What is the difference between Fluke 805 and Fluke 805 FC?

The Fluke 805 FC provides the core vibration and machine-condition measurement capabilities of the 805 while adding wireless connectivity and Fluke Connect functionality for digital data management and remote sharing.