LG-916 Optical Detector is discontinued /
Replaced by LG-9200 Optical Detector (Click here)

Photo (LG-916 Optical Detector)LG-916




Photo (LG-930 Optical Detector)LG-930



The LG-900 series detectors are reflection type optical (LG-916) and photoelectric detectors developed for medium distance detection applications. The LG-916 adopts glass fiber at the tip end and can be protective enough against the external turbulent light because of pulse modulation system as the light projection source. The LG-930 also uses a pulse-lighting method, it is practically unaffected by disturbance light, furthermore, featuring a hybrid structure with the all light-projecting, light-receiving, amplifying, and waveform-shaping sections built into the unit to offer a compact design with easy-to-operate functions. By simply attaching the reflection mark to a rotating object, the detectors can detect the rotation of the object without actually touching the object.


  • Designed to compact and easy-to-operate for projector, light receiver and amplifier integrated neatly

  • Non contact detection applied, no load on the object





Detection method Optical reflection Visible ray photoelectric reflection
Detection distance max. 20 mm *1  70 to 200 mm
Response speed*1  20 m/s or more 25 m/s
Light source LED Light-emitting diode
(red visible rays)
Light receiver element Photo-transistor Photo-transistor
Power supply 12±2 VDC, 60 mA or less 12±2 VDC, 85 mA or less
Output waveform

Hi : 5 V±0.5 V
Lo : +0.5 V or less

Output impedance approx. 1kΩ or less
Operating temperature

-10 to +60 °C

Weight approx. 150 g approx. 200 g
 *1: when a reflection mark of 12mm square is used


List of signal cable fot tachometer




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