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Laser Displacement Sensors from KEYENCE

LK-G Series

Laser Displacement Sensor
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Specifications 3

Sensor Head and Controller Specifications



LK-G Series Sensor Head Variations
LK-G Series Sensor Head Variations
LK-G Series Laser Displacement Sensor Head Specifications
Model LK-G10/G15 LK-G32/ G37
Mounting mode - Diffused reflection Specular reflection
Reference distance 0.39" 10 mm 1.18" 30 mm 0.93" 23.5 mm
Measuring range 1. ±0.04" ±1 mm ±0.2" ±5 mm ±0.18" ±4.5 mm
    Red semiconductor laser
Light source Wavelength 650 nm (visible light) 650 nm (visible light)
Laser Class Class II (FDA CDRH 21CFR PART1040.10) Class II (FDA CDRH 21CFR PART1040.10)
Output 0.3 mW 0.95 mW
Spot diameter (at reference distance) Approx. 0.79 x 20 Mil 20 x 500 μm (G15),
Approx. ø0.79 Mil ø20 μm (G10)
Approx. 1.18 x 33.46 Mil 30 x 850 μm (G37),
Approx. ø1.18 Mil ø30 μm (G32)
Linearity 2. ±0.03% of F.S. (F.S.=±0.04" ±1 mm) ±0.05% of F.S. (F.S.= ±0.2" ±5 mm)
Repeatability 3. 0.0008 Mil (0.0004 Mil) 0.02 μm (0.01 μm) 0.002 Mil 0.05 μm
Sampling frequency 20/50/100/200/500/1000 μs (Selectable from 6 levels)
LED display Near the center of the measurement: Green lights
Within the measurement area: Orange lights Outside the measurement area: Orange flashing
Temperature characteristics 0.01% of F.S./ºC (F.S.=±0.04" ±1 mm) 0.01% of F.S./ ºC (F.S.= ±0.2" ±5 mm)
Environmental
resistance
Enclosure rating IP67 (IEC60529)
Ambient luminance Incandescent lamp or fluorescent lamp: 10,000 lux max.
Ambient temperature 0 to +50ºC (32 to 122ºF), No condensation
Relative humidity 35 to 85%, No condensation
Resistance to vibrations 10 to 55 Hz, multiple amplitude 0.06" 1.5 mm; two hours in each direction of X, Y, and Z
Material Aluminum die-cast
Weight (including the cable) Approx. 190 g Approx. 280 g
1. The range is obtained by measuring KEYENCE’s standard target (ceramic).
LK-G10/G15: When the sampling rate is 20 μs, the range becomes +0.37 (FAR side) to -1 mm (NEAR side).
LK-G32/G37: When the sampling rate is 20 μs, the range becomes +1.8 (FAR side) to -5 mm (NEAR side) for diffuse reflection, and +1.6 mm (FAR side) to -4.5 mm (NEAR side) for specular reflection.
2. The range is obtained by measuring KEYENCE’s standard target (ceramic) with the Standard mode.
3. The range is obtained by measuring KEYENCE’s standard (SUS) with 4096 times of averaging at the reference distance. The range in parenthesis is the typical linearity obtained by measuring the target with 16384.

Model LK-G82/G87 LK-G152/G157
Mounting mode Diffused reflection Specular reflection Diffused reflection Specular reflection
Reference distance 3.15" 80 mm 2.96" 75.2 mm 5.91" 150 mm 5.81" 147.5 mm
Measuring range 1. ±0.59" ±15 mm ±0.55" ±14 mm ±1.57" ±40 mm ±1.54" ±39 mm
    Red semiconductor laser
Light source Wavelength 650 nm (visible light)
Laser Class Class II (FDA CDRH 21CFR PART1040.10)
Output 0.95 mW
Spot diameter (at reference distance) Approx. 2.76 x 43.3 Mil 70 x 1100 μm (G87),
Approx. ø2.76 Mil ø70 μm (G82)
Approx. 4.72 x 66.9 Mil 120 x 1700 μm (G157),
Approx. ø4.72 Mil ø120 μm (G152)
Linearity 2. ±0.05% of F.S. (F.S.= ±0.59" ±15 mm) ±0.05% of F.S. (F.S.= ±1.57" ±40 mm)
Repeatability 3. 0.008 Mil 0.2 μm 0.02 Mil 0.5 μm
Sampling frequency 20/50/100/200/500/1000 μs (Selectable from 6 levels)
LED display Near the center of the measurement: Green lights
Within the measurement area: Orange lights Outside the measurement area: Orange flashing
Temperature characteristics 0.01% of F.S./ºC (F.S.= ±0.59" ±15 mm) 0.01% of F.S./ºC (F.S.= ±1.57" ±40 mm)
Environmental
resistance
Enclosure rating IP67 (IEC60529)
Ambient luminance Incandescent lamp or fluorescent lamp: 10,000 lux max. Incandescent lamp or fluorescent lamp: 5000 lux max.
Ambient temperature 0 to +50ºC (32 to 122ºF), No condensation
Relative humidity 35 to 85%, No condensation
Resistance to vibrations 10 to 55 Hz, multiple amplitude 0.06" 1.5 mm; two hours in each direction of X, Y, and Z
Material Aluminum die-cast
Weight (including the cable) Approx. 380 g Approx. 290 g
1. The range is obtained by measuring KEYENCE’s standard target (ceramic).
LK-G82/G87: When the sampling rate is 20 μs, the range becomes -9 (NEAR side) to -15 mm(NEAR side) for diffuse reflection, and -8.7 (NEAR side) to -14 mm (NEAR side) for specular reflection.
LK-G152/G157: When the sampling rate is 20 μs, the range becomes -22 (NEAR side) to -40 mm(NEAR side) for diffuse reflection, and -22 (NEAR side) to -39 mm (NEAR side) for specular reflection.
2. The range is obtained by measuring KEYENCE’s standard target (ceramic) with the Standard mode.
3. The range is obtained by measuring KEYENCE’s standard (SUS) with 4096 times of averaging at the reference distance. The range in parenthesis is the typical linearity obtained by measuring the target with 16384.

LK-G400/G500 Series Sensor Head Specifications
Model LK-G407/LK-G402 LK-G507/LK-G502
Mounting mode Diffused reflection Specular reflection Diffused reflection Specular reflection
Reference distance 15.75" 400 mm 15.67" 398 mm 19.69" 500 mm 19.59" 497.5 mm
Measuring range1. 3.94" ±100 mm 3.90" ±99 mm -9.84" to 19.69"
-250 to +500 mm
-9.80" to 19.61"
-249 to +498 mm
    Red semiconductor laser
Light source Wavelength 650 nm (visible light)
Laser Class Class II (FDA CDRH 21CFR PART1040.10)
Output 0.95 mW
Spot diameter (at reference distance) Approx. 11.42 x 326.8 Mil
290 x 8300 μm (G407)
Approx. ø11.42 Mil ø290 μm (G402)
Approx. 11.81 x 374 Mil
300 x 9500 μm (G507)
Approx. ø11.8 Mil ø300 μm (G502)
Linearity 2. ±0.05% of F.S.(F.S.= ±3.94" ±100 mm) ±0.05% of F.S. (±9.84 Mil ±250 μm) 4. 5.
-9.84" to +9.84" -250 mm to +250 mm
<high-accuracy range>
±0.02% of F.S. (±3.9 Mil ±100 μm)
-9.84" to -1.97"-250 mm to -50 mm
<long range>
±0.1% of F.S. (±19.5 Mil ±500 μm)
-9.84" to -19.69"-250 mm to +500 mm
(F.S. = ±9.84"±250 mm)
Repeatability 3. 0.08 Mil 2 μm
Sampling frequency 20/50/100/200/500/1000 μs (Selectable from 6 levels)
LED display Near the center of the measurement: Green lights
Within the measurement area: Orange lights
Outside the measurement area: Orange flashing
Temperature characteristics 0.01% of F.S./ºC (F.S.= ±3.94" ±100 mm) 0.01% of F.S./ºC (F.S.= ±9.84" ±250 mm)
Enclosure rating IP67 (IEC60529)
Ambient light Incandescent lamp or fluorescent lamp: 5000 lux max.
Ambient temperature
Relative humidity
Incandescent lamp or fluorescent lamp: 5000 lux max.
0 to +50ºC (32 to 122ºF), No condensation
35 to 85%, No condensation
Vibrations 10 to 55 Hz, multiple amplitude 0.06" 1.5 mm; two hours in each direction of X, Y, and Z
Material Aluminum die-cast
Weight (including the cable) Approx. 380 g
1.The range is obtained by measuring KEYENCE's standard target (ceramic).
(LK-G407/LK-G402)
When the sampling rate is 20 μs, the range becomes -2.76" (-70 mm) (NEAR side) to -3.94" (-100 mm) (NEAR side) for diffuse reflection.
When the sampling rate is 20 μs, the range becomes -2.76" (-70 mm) (NEAR side) to -3.90" (-99 mm) (NEAR side) for specular reflection.
(LK-G507/LK-G502)
When the sampling rate is 20 μs, the range becomes -9.06" (-230 mm) (NEAR side) to -9.84" (-250 mm) (NEAR side) for diffuse reflection.
When the sampling rate is 20 μs, the range becomes -9.06" (-230 mm) (NEAR side) to -9.80" (-249 mm) (NEAR side) for specular reflection.
When the sampling rate is 50 μs, the range becomes -4.92" (-125 mm) (NEAR side) to -9.84" (-250 mm) (NEAR side) for diffuse reflection.
When the sampling rate is 50 μs, the range becomes -4.92" (-125 mm) (NEAR side) to -9.80" (-249 mm) (NEAR side) for specular reflection.
2. The range is obtained by measuring KEYENCE’s standard target (ceramic) with the Standard mode.
3. The range is obtained by measuring KEYENCE’s standard (SUS) with 4096 times of averaging at the reference distance.
4. All are calculated at F.S. = ±9.84" (±250 mm).
5. “High accuracy range” and “long range” refer to the linearity when those ranges are used.

Warning
The LK-G Series coforms to FDA and IEC standards as follows:
LK-G Series Laser Displacement Sensor Controller Specifications
Type All-in-one model Separate monitor model 1.
Model NPN LK-G3001V LK-G3001/LK-GD500
PNP LK-G3001PV LK-G3001P/LK-GD500
Display Head compatibility All LK-G sensor heads are compatible
Number of connectable sensors Maximum of 2 units
Minimum display unit 0.01 μm 0.0004 Mil
Display range ±9,999.99 mm to ±9,999.99 μm (Selectable from six levels)
Refresh rate 10 times/sec
Terminal block Analog voltage output ±10 V x 2 outputs, output impedance: 100 Ω
Analog current output 4 to 20 mA x 2 outputs, maximum load resistance: 350 Ω
Timing/Reset/Auto-zero input For OUT1, non-voltage or voltage input 3.
Laser remote interlock input Non-voltage input 3.
Comparator output For OUT1, NPN or PNP open-collector output 2.
Alarm output For OUT1, NPN or PNP open-collector output 2. (N.C.)
Expansion connector Timing/Reset/Auto-zero input For OUT2, non-voltage or voltage input 3.
Program switching input Non-voltage or voltage input 3. x 3 inputs
Laser-Off input For Head A/Head B, non-voltage or voltage input 3.
Comparator output For OUT2, NPN or PNP open-collector output 2.
Alarm output For OUT2, NPN or PNP open-collector output 2.(N.C.)
Binary Binary output Measured data output (21 bits), OUT1/OUT2 selectable, NPN or PNP open-collector output 2.
Strobe output NPN or PNP open-collector output 2.
Binary selector output NPN or PNP open-collector output 2.
Binary selector input Non-voltage or voltage input 3.
RS-232C interface Measured data output and control input/output (Maximum baud rate: 115,200 bps, selectable)
USB interface In conformity with USB Revision 2.0 Full speed (USB1.1 compatible)
Major functions 2 OUT simultaneous measurement, Operation, Averaging, Filter, Calibration, Measurement, AUTO ZERO,
Sampling frequency setting, Mutual interference prevention, Data storage, 8-program memory, ECO mode,
ABLE setting, Target setting, ABLE tuning, Selection of measurement surface of transparent target,
Connection of setting support software, Selectable head-mounting, etc.
Power supply voltage 24 VDC±10%, Ripple: 10% (P to P) or less
Current consumption 500 mA or less with 1 head/600 mA or less with 2 heads
Ambient temperature 0 to 50ºC, No condensation
Relative humidity 35 to 85%, No condensation
Weight Approx. 480 g (LK-G3001V/G3001PV), Approx. 370 g (LK-G3001/G3001P), Approx. 60 g (LK-GD500)
1. LK-G3001(P) can be operated singly. The measured value display and setting modifications can be performed on the display panel (LK-GD500) or via the setting support software (LK-H1W).
2. The rating of the NPN open-collector: 50 mA max. (40 V max.), residual voltage of 0.5 V max. The rating of the PNP open collector: 50 mA max. (30 V max.), residual voltage of 0.5 V max.
3. (NPN model) The rating of non-voltage input: 1 V or less ON voltage, 0.6 mA or less OFF current. (PNP model) The rating of voltage input: 10.2 V or more ON voltage (26.4 V max.) 0.6 mA or less OFF current.


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