Fluke 805 Digital Vibration Meter

The Fluke 805 Digital Vibration Meter is designed for easy vibration measurement with high accuracy, making it ideal for use on the shop floor and in mobile applications. It is a highly reliable tool for monitoring the condition of machines and identifying potential mechanical problems by evaluating their vibration levels.

Key Features:

Innovative Sensor Design: Minimizes measurement variations caused by device angle or contact pressure.
Consistent Data Quality: Provides consistent data at both high and low frequency intervals.
Severity Indicator: Vibration severity and bearing condition are displayed through a four-level scale.
USB Data Export: Allows exporting measurement data for further analysis.
Trend Determination in Microsoft® Excel: Built-in models for easy trend tracking and analysis.
Comprehensive Vibration Measurement: Measures total vibrations (10 Hz to 1,000 Hz) and other parameters (acceleration, velocity, and misalignment) for a wide range of machinery.
Crest Factor+: Provides a reliable bearing assessment through sensor tip measurements (4,000 Hz to 20,000 Hz).
Color Display & On-Screen Comments: Indicates the pressure to apply for accurate measurements.
Infrared Temperature Measurement: Adds diagnostic capabilities for temperature readings.
Memory Storage: Integrated memory can record up to 3,500 measurements.
Audio Output: Directly listen to bearing sounds for more insight into machine condition.
External Accelerometer Support: For measuring hard-to-reach points.
Flashlight: Illuminates measurement points in dark areas.
High-Resolution Display: Simplifies navigation and view of data.

Applicable Machines:

Chillers (refrigeration)
Fans
Cooling tower units
Centrifugal pumps
Volumetric pumps
Air compressors
Blowers
Gearboxes (roller bearings)
Machine tools (motors, gearboxes, spindles, etc.)

What is the Crest Factor+?

Crest Factor+ is a proprietary algorithm developed by Fluke to avoid confusion when evaluating bearings. Traditionally, the original Crest Factor is used by vibration analysts to identify bearing failures, but it can sometimes misrepresent the severity of mechanical issues due to its nonlinear increase as bearings degrade. Fluke’s Crest Factor+ (CF+) algorithm provides more accurate readings by increasing values as bearing conditions worsen. The CF+ scale ranges from 1 to 16, with higher values indicating more severe issues. Additionally, a four-level severity scale is used to classify the bearing condition as good, satisfactory, unsatisfactory, or unacceptable.

Exporting and Trend Determination with the 805 Device:

Trend determination is crucial for monitoring machine condition over time. With the Fluke 805, users can:

Export vibration data to Excel via USB connection.
Track vibration trends using built-in models and charts in Microsoft® Excel.
Compare total vibration readings against ISO standards (10816-1, 10816-3, 10816-7).

Technical Specifications:

Low-Frequency Range (Total Measurement): 10 Hz to 1,000 Hz
High-Frequency Range (CF+ Measurement): 4,000 Hz to 20,000 Hz
Severity Levels: Good, Satisfactory, Unsatisfactory, Unacceptable
Vibration Limit Value: 50 g peak (100 g peak-to-peak)
A/D Converter: 16-bit
Signal-to-Noise Ratio: 80 dB
Sampling Rate: Low Frequency – 20,000 Hz, High Frequency – 80,000 Hz
Real-Time Clock Backup: Button-cell battery
Sensor Sensitivity: 100 mV/g ± 10%
Measurement Range: 0.01 g to 50 g
Temperature Range (IR Thermometer): -20°C to 200°C (-4°F to 392°F), Accuracy: ±2°C
External Sensors Supported: Yes (but not provided by Fluke)
USB 2.0 Communication Interface: For data export
Memory: Up to 3,500 measurements
Operating Temperature: -20°C to +50°C (-4°F to 122°F)
Storage Temperature: -30°C to +80°C (-22°F to 176°F)
Humidity Range: 10% to 95% relative humidity, non-condensing
Drop Test: 1-meter drop-resistant
Dimensions (L x W x H): 24.1 x 7.1 x 5.8 cm
Weight: 0.40 kg

Conclusion:

The Fluke 805 Digital Vibration Meter is the ideal tool for professionals looking for precise and reliable vibration analysis, with easy data export, trending capabilities, and the ability to diagnose machine conditions efficiently. Whether used in mobile applications or on the shop floor, the Fluke 805 provides fast, consistent results for better maintenance and machine performance monitoring.