Walker Industrial: Home > Manufacturers > A - D > Banner Engineering > Sensors > Laser Sensors > L-GAGE LT3 Series

L-GAGE LT3 Series
Theory of Operation

A short electrical pulse drives a semicondutor laser diode to emit a pulse of light. The emitted light is collimated through a lens, which produces a very narrow laser beam. The laser beam bounces off the target, scattering some of its light through the sensor's receiving lens to photodiode, which creates an electrical pulse. The time interval between the two electrical pulses (transmitting and receiving the beam) is used to calculate the distance to the target, using the speed of light as a constant.

Multiple pulses are evaluated by the sensor's microprocessor, which calculates the appropriate position value. The discrete (switched) output energizes whenever the target is located between the user-programme discrete window limits. Window limits for both discrete outputs may be the same, or they may be programmed independently.

Features

  • Extremely long range: 5 m with white targets, or 3 m with gray targets for diffuse mode sensors, up to 50 m for retroreflective models
  • Two discrete (switched) outputs in each sensor, with independent windows limits
  • Discrete outputs can be used for precision background suppression
  • Output select wire is used to choose either NPN or PNP outputs (see hookups)
  • Fast, easy-to-use integrated push-button TEACH-mode programming; no potentiometer adjustments
  • Remote TEACH function for security and convenience
  • Output response is programmable for three speeds
  • High-grade retroreflective target included with each retroreflective-mode sensor
  • Choose 2m or 9m unterminated cable, or 8-pin Euro-style swivel QD connector
  • Rugged construction withstands demanding sensing environemtns; rated IEC IP67, NEMA 6

    pdfDownload the Banner Engineering LT3 Long Range Distance Laser Sensor Quick Start Guide in *.pdf format.

    LT3PUQ79783