The Fluke 820-2 is a non-contact measuring instrument that uses optical technology to measure the rotational speed of moving objects. This device is specifically designed for mechanical engineers, maintenance technicians, and industrial operators to accurately measure the speed of rotating parts without the need for physical contact.
The user can measure the speed in units of RPM (revolutions per minute) simply by attaching a reflective tape to the rotating axis or surface and aiming the light beam from a specified distance.
The Fluke 820-2 features a large display, ergonomic design, an optical filter system to prevent errors, and can measure from distances up to 2 meters.
🔹 Key Features of Fluke 820-2
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Non-contact rotational speed measurement using optical technology
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Measurement range up to 99,999 RPM
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High accuracy with a resolution of 0.1 RPM
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Measurement distance up to 2 meters with a strong light beam
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Large display with backlight
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Durable and portable design for industrial environments
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Ability to select measurement units (RPM, Hz, etc.)
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Memory for storing measured values
🔹 Technical Specifications of Fluke 820-2
| Feature | Value |
|---|---|
| Measurement Type | Optical (Non-contact) |
| Speed Range | 30 to 99,999 RPM |
| Measurement Distance | 5 centimeters to 2 meters |
| Accuracy | ±0.02% ±1 digit |
| Resolution | 0.1 RPM |
| Display | LCD with backlight |
| Memory | Stores Min / Max / Last Measurement |
| Power Supply | 2 AA Batteries |
| Weight | 300 grams |
| Safety Rating | CE, EN61010-1 |
❓ Frequently Asked Questions (FAQ)
Does the Fluke 820-2 require direct contact with the axis?
No, this model uses optical technology and only requires attaching a reflective tape for measurement.
Is the device suitable for dark environments?
Yes, the backlight of the display allows operation in low-light environments.
How can data be stored?
The device keeps the minimum, maximum, and last measured values in its memory.
Is it suitable for automotive applications?
Yes, it is also applicable for checking the rotational speed of fans, pumps, and other rotating components in vehicles.
🔚 Conclusion
Fluke 820-2 is an accurate, durable, and professional optical tachometer that allows for safe and quick measurement of rotational speed without physical contact. This tool is ideal for mechanical, automotive, HVAC, and facility maintenance industries.
📎 Official Datasheet Link
👉 Download the datasheet Fluke 820-2 (PDF)
