LK-H027 | Keyence | Sensor Head

Description

The LK-H027 is a sensor head from Keyence's LK-G5000 series, designed for precise measurements in industrial settings. It operates in the diffuse reflection mounting mode with a reference distance of 20 mm and a measurement range of ± 3 mm.

Equipped with a red semiconductor laser emitting light at a wavelength of 690 nm, the LK-H027 is classified as Class 2 according to IEC60825-1 and Class II according to FDA(CDRH) standards, with an output of 0.95 mW. The beam spot diameter at the reference distance is 25 μm x 1400 μm.

For range settings of 2.55 μs, 5 μs, and 10 μs, the center and far ranges vary accordingly: ± 0.3 mm to -3.0 mm, ± 1.2 mm to -3.0 mm, and ± 2.5 mm to -3.0 mm, respectively. Linearity is within ± 0.02 of F.S. (full scale), which is 6 mm, and repeatability is 0.02 μm.

Technical Specifications 

Information About LK-H027

The LK-H027 sensor head, part of the Keyence LK-G5000 series, represents a wide-type sensor designed for diffuse reflection mounting mode. Operating at a reference distance of 20 mm, it provides a measurement range of ±3 mm. The light source employed is a red semiconductor laser with a wavelength of 690 nm. In terms of laser safety classifications, the LK-H027 adheres to IEC60825-1 Class 2 and FDA(CDRH) Class II standards, ensuring compliance with industry safety protocols. The sensor outputs at 0.95 mW.

At the reference distance, the beam spot diameter measures 25 μm x 1400 μm. The sensor incorporates an LED indicator that turns green within approximately ±0.15 mm of the reference position when the laser emission occurs. The device offers flexibility in range settings with three options: 2.55 μs, 5 μs, and 10 μs. Each setting provides a specific center position and far range values, contributing to versatile measurement capabilities.

The LK-H027 demonstrates commendable linearity, maintaining accuracy within ±0.02 of Full Scale (F.S.), where F.S. corresponds to 6 mm. Repeatability is specified at 0.02 μm, showcasing consistent and precise performance. The sampling cycle offers nine selectable steps, ranging from 2.55 μs to 1000 μs, accommodating various application requirements.

Temperature fluctuations are managed effectively, with a deviation of 0.01% of F.S./°C, considering a Full Scale of 6 mm. The enclosure is rated at IP67, signifying robust protection against dust and water ingress. Constructed from aluminum die-cast material, the sensor head strikes a balance between durability and weight, tipping the scales at approximately 230 grams.

Manufacturer information

Keyence Corporation, founded in 1974, is a global leader in automation and inspection technology. Specializing in sensors, vision systems, lasers, and more, Keyence provides innovative solutions for manufacturing and research across various industries worldwide.

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