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Surface Scanning Laser Confocal Displacement MeterLT-9000 series

Controller, Not Subject to Export Control, with Camera Function



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Measuring unit compatibility

Measuring units are interchangeable without factory recalibration.


Minimumdisplayable unit

0.1 µm*1

Display range

±9,999.99 µm

Microscope function

Display cycle

10 times/sec.*2

Terminal block

Analogue output

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

Timing input

Non-voltage input

Reset input

Auto-zero input

Monitor dedicated power supply

24 VDC*3

Control I/O

Judgment mode

3-step limits output

For OUT1 and OUT2, and NPN open collector output*4

Binary mode

Binary output

Measured data output (21 bits), OUT1/OUT2/PROFILE selectable
NPN open collector output*4

Strobe output

NPN open collector output*4

Binary selector output

Binary selection input

Non-voltage input*4

Stability output

NPN open collector output

Laser remote input

Non-voltage input

Program switching input

Non-voltage input x 3 inputs

RS-232C interface

Measured data output and control I/O (Selectable up to baud rate 115200 bps.)

Video output

NTSC compliant (PIN connector)

Main functions

Displacement mode

Distance measurement,
Transparent object thickness measurement,
Surface selection, Dark-out, Mask, Trend
graph display,
and Scan width/interval change*5

Profile mode



Light intensity accumulation, Microscope (LT-9501H, LT-9501HSO (5654) only),
Tolerance judgement, 8-program registration, Calibration, Averaging, Hold modes,
Auto-zero, and interface language selection


Power voltage

100 to 240 VAC ±10 %, 50/60 Hz

Power consumption

110VA or less

Environmental resistance

Pollution degree


Overvoltage category


Ambient temperature

0 to +35 °C

Relative humidity

35 to 85 % RH (No condensation)


Approx. 2.4 kg

*1 Display changes every ±0.3 µm.
*2 Varies depending on the setting
*3 Dedicated power supply for the monitor specified by KEYENCE.
*4 Select either the Limits mode or the Binary mode.
*5 Select either the Distance mode or the Profile mode. (Only distance mode is available with the LT-9501HSO (5654) and LT-9001HSO (5655).)
The rating of the NPN open-collector output is 30 mA (30 V or lower) maximum, and residual voltage is 0.5 V.
The rating of the Non-voltage input is ON voltage 1 V or lower, and OFF current 0.6 mA or lower.

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