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Laser Displacement Sensors

Compact Type- LM-S Series

Sensor Head

Model LM-S020 LM-S050 LM-S155
Type Reflective
Short-range type Medium-range type Long-range type
Reference distance 15 mm 35 mm 100 mm
Measuring distance 10-20 mm 20-50 mm 45-155 mm
Light sensor Linear image sensor CMOS
Spot size Approx. 550 × 750 μm Approx. 500 × 780 μm Approx. 650 × 750 μm
Light source 655 nm red laser, 390 μW
Laser class class1 class 
Linear accuracy ±0,1 % F.S.*1
Repeatability 1 μm*2 6 μm*2 20 μm*2
Sampling period Up to 500 μs
Temperature drift ±0,02 % F.S./°C ±0,05 % F.S./°C
Current consumption 55 mA max. (24 VDC)
Protection class IP67
Ambient light Sunlight: max. 20,000 lux; Incandescent lamp: max. 3,000 lux (surface illumination)
Ambient temperature -10 to +50 °C (no freezing)
Storage temperature -20 to +60 °C (no freezing)
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
Shock resistance 50 G (500 m/s²), 3 times in each of the X, Y, and Z directions
Cable length 30 cm
Material Sensor head: Aluminum; Transmitter and receiver lenses: Glass
Weight Approx. 240 g (including cable)
*Note:
1. Data from SENPUM measurements of standardized targets (white diffuse objects).
2. Based on test data at an average sampling number of 512 times.

Controller, NPN output

Model LM-S1000N LM-S1050N

Main module/

Expansion module

Main module Expansion module
Mounting method DIN rail mounting
Type Amplifier module
Power consumption At 12 V: max. 1440 mW (120 mA); At 24 V: max. 1680 mW (70 mA)
Measurement value display OLED
Display range LM-S155 / LM-S050: -999.99 to 999.99; LM-S020: -99.999 to 99.999
Minimum display unit LM-S155 / LM-S050: 10 um; LM-S020: 1 um
Control input No voltage input
Control output HI/GO/LOW NPN/PNP open collector; 100 mA 30 V max; Residual voltage 1 V max; N.O./N.C. switchable
Response time 200 μs
Communication method RS-232 (can convert to RS-485 or USB output) None*1
Main function Current measured value display, original value display, upper limit/lower limit threshold manual setting, tolerance manual setting, upper limit/lower limit threshold automatic teach-in, tolerance automatic teach-in, display inversion, measurement plus or minus direction, zero drift value, peak hold, valley hold, peak-to-peak hold, initialization, key lock.
Calculation function Maximum value, Minimum value, Peak-to-peak value, Average value, Reference deviation, Distortion value, Thickness, Warpage None*2
Indicator Output indicators: HIGH (red), GO (green), LOW (orange)
Rated supply voltage 12 to 24 VDC, ripple (P-P) 10 % or less
Ambient temperature -10 to +55 °C (no freezing)
Relative humidity 35 to 85 % RH (no condensation)
Shock resistance 10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
Connection method Wire lead type (standard wire length 2 m)
Material Main unit enclosure: Alloy aluminum; Membrane key switch: PET plastic; Cable: PVC
*1. When the expansion module is used in cascade with the main module, it has communication function.
*2. When the expansion module is used in cascade with the main module, the main module can read the values of multiple expansion modules for calculation, and directly output the maximum value, minimum value, peak-to-peak value, average value, reference deviation, distortion value, thickness and warpage.

Controller, PNP output

Model LM-S1000P LM-S1050P

Main module/

Expansion module

Main module Expansion module
Mounting method DIN rail mounting
Type Amplifier module
Power consumption At 12 V: max. 1440 mW (120 mA); At 24 V: max. 1680 mW (70 mA)
Measurement value display OLED
Display range LM-S155 / LM-S050: -999.99 to 999.99; LM-S020: -99.999 to 99.999
Minimum display unit LM-S155 / LM-S050: 10 um; LM-S020: 1 um
Control input No voltage input
Control output HI/GO/LOW NPN/PNP open collector; 100 mA 30 V max; Residual voltage 1 V max; N.O./N.C. switchable
Response time 200 μs
Communication method RS-232 (can convert to RS-485 or USB output) None*1
Main function Current measured value display, original value display, upper limit/lower limit threshold manual setting, tolerance manual setting, upper limit/lower limit threshold automatic teach-in, tolerance automatic teach-in, display inversion, measurement plus or minus direction, zero drift value, peak hold, valley hold, peak-to-peak hold, initialization, key lock.
Calculation function Maximum value, Minimum value, Peak-to-peak value, Average value, Reference deviation, Distortion value, Thickness, Warpage None*2
Indicator Output indicators: HIGH (red), GO (green), LOW (orange)
Rated supply voltage 12 to 24 VDC, ripple (P-P) 10 % or less
Ambient temperature -10 to +55 °C (no freezing)
Relative humidity 35 to 85 % RH (no condensation)
Shock resistance 10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
Connection method Wire lead type (standard wire length 2 m)
Material Main unit enclosure: Alloy aluminum; Membrane key switch: PET plastic; Cable: PVC
*1. When the expansion module is used in cascade with the main module, it has communication function.
*2. When the expansion module is used in cascade with the main module, the main module can read the values of multiple expansion modules for calculation, and directly output the maximum value, minimum value, peak-to-peak value, average value, reference deviation, distortion value, thickness and warpage.

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