Product Description

The Keyence LK-2100 is a high-precision amplifier unit designed for use with Keyence's laser displacement sensor heads. It utilizes a red semiconductor laser with a wavelength of 655 nm, emitting a 0.95 mW output, and offers a measuring range of ±15 mm with a reference distance of 80 mm. The LK-2100 provides analog outputs, including a 4 to 20 mA current output and a voltage output with a 100 Ω impedance, facilitating integration into various measurement systems. It also features alarm outputs, sampling cycles of 1,024 µs, and functions such as auto-zero, analog output holding during alarms, and gain and response switching. Designed for industrial environments, the LK-2100 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-2100
• Type: Amplifier Unit
• Measurement Mode: Not specified
• Reference Distance: 80 mm (fine target measurement), 76.7 mm (transparent/mirror target measurement)
• Measuring Range: ±15 mm
• Light Source: Red semiconductor laser
• Wavelength: 655 nm (visible light), Class 2 laser product (JIS C 6802)
• Output: 0.95 mW
• Spot Diameter (at Standard Distance): Not specified
• Linearity: ±0.1% of full scale
• Repeatability: Not specified
• Analog Output:
• Voltage Output: Not specified
• Current Output: 4 to 20 mA (350 Ω maximum)
• Alarm Output: NPN open collector (N.C.), maximum 100 mA (40 V or less), residual voltage 1 V or less
• Sampling Cycle: 1,024 µs
• Additional Functions: Auto-zero, analog output holding during alarm, gain switching, response switching, span and shift adjustment
• 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:
• 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)