CCD Laser Displacement Sensor

LK series

[Discontinued product]

This product has been discontinued.

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Model

Sensor head

LK-011

LK-031

LK-036

LK-081

LK-086

LK-503

Controller

LK-3101

LK-2001

LK-2011

LK-2101

LK-2111

LK-2503

Type

Sensor head Compact high-accuracy Sensor head

Sensor head High-precision Sensor head

Sensor head Standard Sensor head

Sensor head Long-distance *4 Sensor head

Measurement mode

Normal,mirror surface

High-precision mode,Long-range mode

Reference distance

10 mm0.39" (Normal),7.0 mm0.28" (mirror surface)

30 mm 1.18"

80 mm 3.15"

350 mm 13.78" (High-precision mode), 500 mm 19.69" (Long-range mode)

Measuring range

±1 mm±0.04" (Normal),±0.9 mm±0.04" (mirror surface)

±5 mm ±0.20"

±15 mm ±0.59"

±100 mm ±3.94" (High-precision mode), ±250 mm ±9.84" (Long-range mode)

Light source

Type

Visible red semiconductor laser

Wavelength

670nm (Visible light), Class 2 laser product (JIS C6802)

670 nm

690 nm

Output

0.95 mW maximum

0.95 mW

Laser
Class

FDA (CDRH) 21CFR Part 1040.10

Class 2 Laser Product

IEC 60825-1

Spot diameter (at standard distance)

Approx. 20 µm
0.000787"

Approx. 30 µm
0.001181"

Approx. 30 x
850 µm
0.001181 x 0.0335"

Approx. 70 µm
0.002756"

Approx. 70 x
1100 µm
0.02756 x 0.0433"

Approx. 0.7 mm 0.03" (High-precision mode), Approx. 0.3 mm 0.01" (Long-range mode)

Linearity

±0.25% of F.S. *1

±0.1% of F.S. *1

Repeatability

0.1 µm *2 0.000004"

1 µm *2 0.000040"

3 µm *2 0.000119"

10 μm (high-precision mode), 50 μm (long mode)

Analog output

Voltage output

±10 V (±9 V)
(0.1 µm 0.000004"/mV) *3

±5 V
(1 µm 0.000040"/mV) *3

±5 V
(3 µm 0.000119"/mV) *3

±10 V (10 µm 0.000394"/mV) *3 (High-precision mode),
±5 V (50 µm 0.001969"/mV) *3 (Long-range mode)

Impedance

100 Ω

Current output

4 to 20 mA (Applicable load: 350 Ωmax.)

Alarm output

NPN: 100 mA max. (40 V max.) (N.C.), Residual voltage: 1 V max.

Sampling cycle

128, 256, 512, 2,048 μs (selectable)

512 μs

1024 μs

Other functions

Auto-zero, analog output holding when an alarm occurs, gain switching, response switching, span and shift adjustment of mirror surface measurement mode, changing the sampling cycle

Temperaturefluctuation

Sensor head

0.04% of F.S./°C

0.01% of F.S./°C

0.02% of F.S./°C

Controller

0.005% of F.S./°C

0.01% of F.S./°C

Rating

Power voltage

24 VDC ±10%, Ripple: 10% (P to P) or less

Maximum current consumption

400 mA max.

Environmental resistance

Enclosure rating

IP64

IP67

Operating ambientluminance

Incandescent or fl uorescent lamp: 10000 lux max.

Operating temperature range

0 to 50°C 32 to 122°F (No condensation)

Operating ambient humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz, double amplitude 1.5 mm 0.06"; two hours in each direction of X, Y, and Z

Material

Aluminum die-cast

Weight (including cable)

Sensor head

Approx 80 g (including cable)

Approx 260 g (including cable)

Approx 385 g (including cable)

Approx 700 g (including cable)

Weight
(including
cable)

Controller

Approx 515 g (including cable)

*1 Linearity was obtained using KEYENCE's standard target (Zirconia block gauge: LK-031/036, LK-081/086, LK-011, White ceramic block gauge: LK-503).
*2 Repeatability was obtained using KEYENCE's analog sensor controller (RD-50) with the number of averaging measurements set to 64.
Note: The ripple of the analog output may be 1 mV or more due to common mode noise when observed with an oscilloscope or a high-speed A/D conversion board.
*3 When measurement is impossible, 12 V (31.2 mA) is output.
*4 The LK-503 can both be used in High-precision mode or Long-range mode.

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