Model	LG-81
Reference distance	80 mm
Measurement range	±20 mm
Light source	Type	Red semiconductor laser
Wavelength	670 nm (visible light), Class 2
Control output	1.4 mW maximum (0.24 mW average)
Spot diameter	1 × 2 mm*1
Indication system	±0.1 mm or less (with white mat paper)
Display resolution	0.1 mm*2
Display range	-99.9 to +99.9
Display speed	40 times/ms, 80 times/ms, 160 times/ms, 640 times/ms*3
Display power	2-Colour, 7-segment LED (character height: 10 mm)
Control input	Timing input	NPN open-collector or non-voltage contact signal
Auto-zero input
Tolerance selector input
Control output	Controloutput	100 mA max. (40 V max.) Residual voltage: 1 V max.
Alarm output	Maximum NPN open-collector output: 100 mA (40 V or less), residual voltage: 1 V or less (N.C.)
Response time	10 ms minimum (switchable between 4 levels)
Temperature characteristics	0.03% of F.S./°C
Main functions	Auto zero, scaling, tolerance memory
Rating	Power voltage	12 VDC ±10 %, Ripple (P-P) 10 % or less
Current consumption	200 mA or less
Environmental resistance	Ambient light	Incandescent lamp or Fluorescent lamp: 2,500 lux or less
Ambient temperature	0 to +40 °C
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
Case material	Glass reinforced plastic
Weight	Approx. 300 g (including 2-m cable)
1 At the reference distance 2 With white mat paper at the reference distance *3 This varies according to the set number of averaging measurements.

Keyence LG-81

Laser gauge LG series

Main Unit

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Model	LG-81
Reference distance	80 mm
Measurement range	±20 mm
Light source	Type	Red semiconductor laser
Wavelength	670 nm (visible light), Class 2
Control output	1.4 mW maximum (0.24 mW average)
Spot diameter	1 × 2 mm*1
Indication system	±0.1 mm or less (with white mat paper)
Display resolution	0.1 mm*2
Display range	-99.9 to +99.9
Display speed	40 times/ms, 80 times/ms, 160 times/ms, 640 times/ms*3
Display power	2-Colour, 7-segment LED (character height: 10 mm)
Control input	Timing input	NPN open-collector or non-voltage contact signal
Auto-zero input
Tolerance selector input
Control output	Controloutput	100 mA max. (40 V max.) Residual voltage: 1 V max.
Alarm output	Maximum NPN open-collector output: 100 mA (40 V or less), residual voltage: 1 V or less (N.C.)
Response time	10 ms minimum (switchable between 4 levels)
Temperature characteristics	0.03% of F.S./°C
Main functions	Auto zero, scaling, tolerance memory
Rating	Power voltage	12 VDC ±10 %, Ripple (P-P) 10 % or less
Current consumption	200 mA or less
Environmental resistance	Ambient light	Incandescent lamp or Fluorescent lamp: 2,500 lux or less
Ambient temperature	0 to +40 °C
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
Case material	Glass reinforced plastic
Weight	Approx. 300 g (including 2-m cable)
1 At the reference distance 2 With white mat paper at the reference distance *3 This varies according to the set number of averaging measurements.