Surface Scanning Laser Confocal Displacement Meter

LT-9000 series

This model has been discontinued.
Compliance with the certification standard is ensured as of the time of shipment from our company.

Controller, Not Subject to Export Control, with Camera Function LT-9501HSO(5654)




Measuring unit compatibility

Measuring units are interchangeable without factory recalibration.


Minimumdisplayable unit

0.1 µm *1

Display range

±9999.99 µm



Display cycle

10 times/sec.*2

Terminal block

Analog 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
judgment, 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 32 to 95 °F

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. (Distance mode is only 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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