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Fluke | 820-2

LED Stroboscope, 50 to 300 000 FPM

Fluke
Reference : FLU820-2
Serie : Fluke 8xx
Purchase Order Reference : FLUKE-820-2 (4550041)
Brand : Fluke
Le stroboscope à LED Fluke 820-2 simplifie les diagnostics d'arrêt de mouvement sans réellement arrêter ou entrer en contact avec la machine sur laquelle vous travaillez. 

- 50 à 300 000 flash par minute.
- durée des flashs réglables.
- déclenchement externe possible.
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Details

  • 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 – 30-300.000 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)
  • 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 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

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. In order to use the stroboscope. the component under measure must be visible. and have an identifying mark that can be used as a point of reference. A strobe tachometer is a useful tool because you can't always get access to the machine shaft to stick a piece of reflective tape to use a laser tachometer or make contact with the moving shaft to use a contact tachometer - 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. but do not change frequently
  • Find belt rotation speed and look for belt slippage
  • Find machine element components – fan blades. pump vanes. compressor screws. and gear teeth
  • RPM measurement and frequency investigation
  • Slip measurement

Technical specifications:

  • Mechanical Specifications
    Size (HxWxL)5.71 cm x 6.09 cm x 19.05 cm
    2.25 in x 2.4 in x 7.5 in
    Weight0.24 kg
    Environmental Specifications
    Operating temperature0 °C to +45 °C
    Storage temperature-10 °C to +50 °C
    Operating humidity (without ondensation)Non-condensing (<10 c="" td="">
    90 % RH (10 °C to 30 °C)
    75 % RH (30 °C to 40 °C)
    45 % RH (40 °C to 50 °C)
    Absorption/corrosion30 °C. 95 % RH. 5 day
    Product functions normally
    Operating altitude2.000 m
    Storage altitude12.000 m
    VibrationMIL-PRF-28800F Class 2
    Impact resistance1 m drop
    EMI. RFI. EMCEN61326-1:2006
    Safety Compliance
    Agency approvalsCE
    Class III (SELV) Pollution Degree 2
    Miscellaneous Specifications
    Flash Frequency
    Range30 to 300.000 FPM
    0.5 to 5000 Hz
    Accuracy0.02 %
    Resolution30 to 999 FPM = 0.1
    1000 to 300.000 = 1
    0.5 Hz to 999 Hz = 0.1
    1000 Hz to 5000 Hz = 1
    Frequency settingFPM or Hz
    Flash Pulse
    DurationAdjustable in μs or degrees
    DelayAdjustable in μs or degrees
    Light
    ColorApproximately 6500 K
    Emission output4.800 lx @ 6000 FPM at 30 cm
    External Trigger
    MethodConnector to externally control trigger
    High level3 V to 32 V
    Low level<1 v="" td="">
    Minimum pulse width50 μs connection
Product Details
41-Standard Manufacturer Warranty 2 YEARS
226-Speed range max (tr/mn) 300,000 RPM
228-measure unit tr/min
227-automobile or industrial industrial
24-Accuracy (%) 0.02 %
36-Additional Characteristics - adjustable flash duration.- Connector to externally control trigger.
132-Package includes Protective case, External trigger connector
13-Net Weight 240g
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