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Fluke 820-2 digital LED stroboscope in grey plastic housing with LCD display and keypad

Fluke

Fluke 820-2 Digital LED Stroboscope 30-300000 fpm

SKU CH-KENT-PTGTQ

Measures rotational speed from 30 to 300,000 fpm with 0.1 fpm resolution and external trigger input/output

  • TypeDigital Multimeters
  • Precise speed checks with 0.1 fpm resolution
  • Freeze motion from 30 to 300,000 fpm
  • Sharp images using flash durations down to 1 µsec
  • Four-hour battery run time for extended sessions
  • External trigger input and output for phase-shift sync

Fluke 820-2 Digital LED Stroboscope

The Fluke 820-2 is a digital LED stroboscope designed for maintenance technicians and engineers who need to inspect rotating or reciprocating machinery without physical contact. It provides a visual freeze-frame of motion for alignment checks, speed verification and vibration analysis in industrial and automotive environments.

Flash rate range and external triggering

The instrument covers a flash range from 30 fpm to 300,000 fpm with a resolution of 0.1 fpm, allowing precise synchronisation across a very wide speed envelope. An external trigger connector supports phase shift and input/output triggering for applications where the flash must follow an external signal rather than the internal oscillator.

Battery runtime and operating limits

Power comes from an internal battery delivering approximately 4 hr of continuous use, so extended sessions will require recharging or a spare unit. The minimum operating temperature is 32 Degrees F, limiting use in unheated outdoor or cold-storage settings. Flash duration can be set as short as 1 usec up to 33,333 usec, which handles most high-speed inspections but may not freeze the very fastest events.

Highlights

  • Precise speed checks with 0.1 fpm resolution
  • Freeze motion from 30 to 300,000 fpm
  • Sharp images using flash durations down to 1 µsec
  • Four-hour battery run time for extended sessions
  • External trigger input and output for phase-shift sync

Specifications

BrandFLUKE
TypeDigital Multimeters

Questions about this item

Should I pick the 30 fpm minimum or the 300,000 fpm maximum range for my application?

The stroboscope covers the full span from 30 to 300,000 fpm in one instrument, so you do not choose between ranges.

What does the 300,000 fpm figure mean when I am inspecting a running machine?

It lets you freeze motion on very high-speed equipment such as turbines or printing presses by matching the flash rate to the shaft speed.

How does the external trigger connector limit what I can synchronise?

The external trigger input and output accept phase-shift signals, allowing the flash to lock to an external sensor or encoder for precise timing.

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