Fluke 820-2 LED Stroboscope
 
Investigate and observe potential mechanism failure with confidence. Identifying the running speed of rotating equipment can be difficult, but the Fluke 820-2 LED Stroboscope simplifies the process, allowing you to perform stop-motion diagnostics without actually stopping, or making contact with, the machine you are working on. Whether you are trying to diagnose parasitic oscillations, slippage, or unwanted distortions, the 820-2 LED Stroboscope is the ideal frontline troubleshooting, process, or product research and development tool.
 
Key Features:
 
 
High-intensity 7-LED array — 4,800 Lux @ 6,000 FPM/30cm
 
High-efficiency LED solid-state light source with uniform flash characteristics allows for higher flash rates — 30 to 300,000 FPM (flashes per minute)
 
Digital pulse width modulation for exceptionally sharp images at high speeds
 
Rugged, durable design utilizes solid-state LEDs with no filaments, gases, hollow cavities, or glass (1-meter drop tested)
 
Quartz-accuracy control system provides high accuracy — 0.02% (+/- 1 digit)
 
Multi-line LCD display
 
Check the rotating speed of machinery without physical contact or the need for reflective tape
 
Advance or retard flash timing for viewing gear teeth, cutting surfaces, repeats, or drifting equipment
 
Simple push-button operation with 2x and ÷2 buttons for easy adjustment
 
Adjustable flash duration
 
 
Adjustable Flash Duration
 
For most applications, the standard flash duration will work well without adjustment. In other applications with higher RPM or larger rotating objects with high surface speeds, an adjustable flash duration is needed. In high-speed applications, objects may move during the brief period of a single flash, resulting in a blurred image. By decreasing flash duration, objects have less time to move and the image will appear sharper.
 
Common Applications for the 820-2
 
The Fluke 820-2 LED Stroboscope is more than just a tool to measure rotational speed of machinery without physical contact. It is also an excellent diagnostic tool for a wide variety of applications:
 
 
Belt-driven machines - HVAC fans, pumps
 
Roller bearings, shafts, gear teeth, or other machine components
 
Clutches and cogwheels
 
Foundations - resonance vibrations
 
Cable or piping wear or damage
 
Mixing and dosage processes
 
 
In addition, the LED stroboscope can be used as a strobe tachometer to measure speed instead of using a laser tachometer. A strobe tachometer is a useful tool because you cannot always access the machine shaft to apply reflective tape or make physical contact — using a stroboscope, you can "stop" the shaft down to 30 RPM (FPM).
 
Use the 820-2 for:
 
 
Turbines that vary in speed and change speed frequently
 
Variable Frequency Drive motors that vary in speed
 
Finding belt rotation speed and looking for belt slippage
 
Examining machine element components — fan blades, pump vanes, compressor screws, and gear teeth
 
RPM measurement and frequency investigation
 
Slip measurement
 
 
820-2 LED Stroboscope Includes:
 
 
Protective case
 
External trigger connector