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Compact rectangular sensor head with matte grey finish and front laser aperture

Keyence

Keyence LJ-G030 2D laser displacement sensor

SKU CH-FM3F-7MRKC MPN LJ-G030

Measures height profiles with ±0.1% linearity, 3.8 ms sampling, and 655 nm wavelength for 0–50 °C operation

  • TypeSensors
  • ±0.1% F.S. linearity ensures precise height measurement
  • 8 ms sampling cycle enables fast inline inspection
  • 655 nm laser wavelength suits visible-light applications
  • Operates 0 to 50 °C for industrial environments
  • 35 to 85 % RH tolerance handles humid conditions

Application fit

The Keyence LJ-G030 is a 2D laser displacement sensor head designed for non-contact height and profile measurement on production lines. It suits quality-control engineers who need micron-level linearity across a defined field of view. Buyers who require an integrated controller or multi-sensor networking should look elsewhere.

Installation notes

Mount the head at the specified working distance and align the 655 nm laser spot to the target surface. Supply power within the 0 to 50 °C ambient range and keep humidity between 35 and 85 % RH with no condensation. Misalignment or vibration beyond the mechanical tolerance will degrade the ±0.1 % F.S. linearity figure.

Deciding specification

The sampling cycle is fixed at 3.8 ms per trigger interval. This timing sets the maximum inspection speed for in-line gauging. If your process demands a faster cycle the LJ-G030 will not meet the requirement.

Highlights

  • ±0.1% F.S. linearity ensures precise height measurement
  • 8 ms sampling cycle enables fast inline inspection
  • 655 nm laser wavelength suits visible-light applications
  • Operates 0 to 50 °C for industrial environments
  • 35 to 85 % RH tolerance handles humid conditions

Specifications

TypeSensors

Questions about this item

How do I verify the LJ-G030 is measuring correctly after installation?

Confirm the sensor head reports height values within ±0.1% of full scale linearity and triggers new readings every 3.8 ms while the ambient temperature stays between 0 and 50 °C and humidity remains 35 to 85 % RH.

What comes with the LJ-G030 sensor head and what must I source separately?

The box contains the LJ-G030 2D sensor head only; a compatible Keyence controller, mounting bracket, power supply and cabling are sold separately.

Which LJ-G030 version should I choose for my application?

The LJ-G030 is a single 2D laser displacement model with a 655 nm wavelength and 3.8 ms sampling cycle; select it when those specifications match your measurement requirements.

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