High-speed optical micrometer

LS-9000 series

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Head: Large-diameter model LS-9120M

LS-9120M - Head: Large-diameter model

  • CE Marking





Head: Large-diameter model

Measurement range

0.8 mm to 120 mm 0.03" to 4.72"

Smallest detectable object

0.8 mm 0.03"

Transmitter/receiver distance

400 ±100 mm 15.75" ±3.94"


±0.3 µm 0.000012"*1

Measurement accuracy

±8 µm 0.000315"*2

Sampling cycle

16,000 samples/sec.

Light source

InGaN green LED

Monitor camera


Environmental resistance

Enclosure rating

IP67 (including connector)

Ambient light

Incandescent lamp/Fluorescent lamp: 3,000 lux or lower

Ambient temperature

0 to +50 °C 32 to 122 °F

Relative humidity

20 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions

Shock resistance

15 G/6 ms




Transmitter: Approx. 1,800 g, Receiver: Approx. 2,800 g, Base: Approx. 1,600 g

*1 A ±2σ margin of error when measuring a ø40 mm ø1.57" rod in the center of the measurement area using outer diameter mode with the average measurement number set as 2,048 times.
*2 Margin of error when a moving ø40 mm ø1.57" rod is measured in the 40 mm x 120 mm 1.57" x 4.72" measurement area using outer diameter mode.

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