High-speed, High-accuracy CCD Laser Displacement SensorLK-G3000 series


Controller, PNP Type


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Separate type*1

Head compatibility

All LK-G sensor heads are compatible

Connectable number of heads

Maximum of 2 units


Minimum display unit

0.01 μm

Display range

±9999.99 mm to ±9999.99 μm (Selectable from six levels)

Display cycle

10 times/sec

Terminal block

Analogue voltage output

±10 V x 2 outputs, output impedance: 100 Ω*2

Analogue current output

4 to 20 mA x 2 outputs, maximum load resistance:350 Ω*2

Timing input

Voltage input for OUT1*2

Reset input

Auto-zero input

Laser remote interlock input

Non-voltage or voltage input*3*2

Comparator output

PNP open-collector output for OUT1*2

Alarm output

PNP open-collector output (N.C.) for OUT1*2

Expansion connector

Timing input

Voltage input for OUT2

Reset input

Auto-zero input

Program switching input

Voltage input × 3

Laser-Off input

For Head A/Head B, Voltage input

Comparator output

For OUT2, PNP open-collector output

Alarm output

For OUT2, PNP open-collector output(N.C.)


Binary output

Measured data output (21 bits), OUT1/OUT2 selectable, PNP open-collector output

Strobe output

PNP open-collector output

Binary selector output

Binary selector input

Voltage input

RS-232C interface

Measured data output and control input/output (Maximum baud rate: 115200 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,Statistics processing, Connection of setting support software, Selectable head-mounting, etc.


Power voltage

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

Maximum current consumption

500 mA or less with 1 head/600 mA or less with 2 heads

Environmental resistance

Operating ambient temperature

0 to +50°C

Operating ambient humidity

35 to 85% RH (No condensation)


Approx 370 g (including the cable)

*1 The LK-G3000/LK-G3000P can be used in a standalone fashion. The display panel (LK-GD500) or the setting support software (LK-H1W) can be used to display measured values and change settings.
*2 NPN open-collector output maximum rating: 50 mA (40 V or lower), residual voltage: 1.0 V or lower
PNP open-collector output maximum rating: 50 mA (30 V or lower), residual voltage: 1.0 V or lower
non-voltage input rating ON voltage: 1 V or lower, OFF current: 0.6 mA or lower
voltage input rating input maximum rating: 26.4 V, ON voltage: 10.2 V, OFF current: 0.6 mA
Some are internally common between each I/O circuit for the main unit. Be careful that no potential difference is generated between the internally common terminals due to the potential difference between the cable external devices. For details, refer to "Notes on Wiring" (pg. 4)..
*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 OFFcurrent.

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