Product Description

The Keyence LK-2001 is a high-precision amplifier unit designed for use with Keyence's laser displacement sensor heads. It utilizes a visible red semiconductor laser with a wavelength of 670 nm, emitting a 0.95 mW output. The sensor offers a measuring range of ±5 mm with a reference distance of 30 mm, providing exceptional linearity of ±0.1% of full scale and repeatability of 1 µm. The LK-2001 provides analog outputs, including a 4 to 20 mA current output and a ±5 V voltage output with a 100 Ω impedance, facilitating integration into various measurement systems. It also features alarm outputs, sampling cycles of 512 µs, and functions such as auto-zero, analog output holding during alarms, gain switching, response switching, and span and shift adjustment. Designed for industrial environments, the LK-2001 operates within an ambient temperature range of 0 to +50°C and relative humidity of 35% to 85% RH (non-condensing), with an enclosure rating of IP67. Housed in a polycarbonate casing, it weighs approximately 515 g, including the cable.​

Technical Specifications

• Model: LK-2001
• Type: Amplifier Unit
• Measurement Mode: Not specified
• Reference Distance: 30 mm
• Measuring Range: ±5 mm
• Light Source: Visible red semiconductor laser
• Wavelength: 670 nm
• Laser Class: Class 2 (FDA CDRH 21CFR Part 1040.10), Class 2 (IEC 60825-1)
• Output: 0.95 mW
• Spot Diameter (at Standard Distance): Approx. 30 µm
• Linearity: ±0.1% of full scale
• Repeatability: 1 µm
• Analog Output:
• Voltage Output: ±5 V (1 µm/mV)
• Impedance: 100 Ω
• Current Output: 4 to 20 mA (Applicable load: 350 Ω max.)
• Alarm Output: NPN open collector (N.C.), maximum 100 mA (40 V max.), residual voltage 1 V max.
• Sampling Cycle: 512 µs
• Other Functions: Auto-zero, analog output holding during alarm, gain switching, response switching, span and shift adjustment of mirror surface measurement mode, changing the sampling cycle
• Temperature Characteristics: 0.01% of full scale per °C
• Power Supply:
• Voltage: 24 VDC ±10%
• Ripple (P-P): 10% or less
• Maximum Current Consumption: 400 mA
• Environmental Resistance:
• Enclosure Rating: IP67
• Ambient Light: Incandescent or fluorescent 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: Polycarbonate
• Weight: Approximately 515 g (including cable)