CCD Laser Displacement Sensor

LK series

This model has been discontinued.
Compliance with the certification standard is ensured as of the time of shipment from our company.

Recommended Replaceable Products: Confocal Displacement Sensor - CL-3000 series

Sensor Head, Small Spot LK-031

LK-031 - Sensor Head, Small Spot

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

Data Sheet (PDF)

Specifications

Model			LK-031
Type			Sensor head High-precision Sensor head
Reference distance			30 mm
Measuring range			±5 mm
Light source	Type		Visible red semiconductor laser
	Wavelength		670 nm
	Output		0.95 mW
	Laser Class	FDA (CDRH) 21CFR Part 1040.10	Class 2 Laser Product
	Laser Class	IEC 60825-1
Spot diameter (at standard distance)			Approx. 30 µm
Linearity			±0.1% of F.S. ^*1
Repeatability			1 µm^*2
Analogue output	Output voltage		±5 V (1 µm/mV)^*3
	Impedance		100 Ω
	Output current		4 to 20 mA (Applicable load: 350 Ω max.)
Alarm output			NPN: 100 mA max. (40 V max.) (N.C.), Residual voltage: 1 V max.
Sampling cycle			512 µs
Other functions			Auto-zero, analog output holding when an alarm occurs, gain switching, response switching, span and shift adjustment of mirror surface measurement mode, changing the sampling cycle
Temperature characteristics			0.01% of F.S./°C
Rating	Power voltage		24 VDC ±10 %, Ripple (P-P) 10 % or less
	Maximum current consumption		400 mA max.
Environmental resistance	Enclosure rating		IP67
	Ambient light		Incandescent or fl uorescent lamp: 10,000 lux max.
	Ambient temperature		0 to +50 °C (No condensation)
	Relative humidity		35 to 85 % RH (No condensation)
	Vibration resistance		10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
Material			Aluminium die-cast
Weight			Approx. 260 g (including cable)
^1 Linearity was obtained using KEYENCE's standard target (Zirconia block gauge: LK-031/036, LK-081/086, LK-011, White ceramic block gauge: LK-501/503). ^2 Repeatability was obtained using KEYENCE's analogue sensor controller (RD-50) with the number of averaging measurements set to 64. Note: The ripple of the analogue output may be 1 mV or more due to co mmon mode noise when observed with an oscilloscope or a high-speed A/D conversion board. ^*3 When measurement is impossible, 12 V (31.2 mA) is output.

Data Sheet (PDF) Other Models