Long Range Fiber Amplifier Now Available with Analog Output for Diverse Sensing Applications

The DF-G3 long range fiber optic amplifier is now available with analog output to solve more of your applications.  The advanced sensor featuring dual digital displays is designed for use with plastic and glass fiber optic assemblies, and offers increased detection reliability for:

• contrast matching
• intensity monitoring
• web guiding
• process monitoring of signal intensity
• dense sensing point environments

With its world-class long range sensing capability, the Banner DF-G3 is capable of:

  • sensing more than 3 meters (10 ft.) with opposed mode fibers
  • sensing more than 1 meter (3 ft.) with diffuse mode fibers

The unmatched sensing power, convenient combination of both digital and analog outputs in one amplifier, and an easy-to-use interface, make the DF-G3 is optimal for difficult detection challenges in:

  • assembly error-proofing
  • consumer packaging
  • electronic assembly markets around the world


Banner Engineering's DF-G3LIR sensor (featured in the video above) uses a 1450nm infrared wavelength that is able to burn through clear and opaque containers, but is blocked by water and water-based liquids including sauces, lotions, shampoos, alcohol, and soda. This sensor is ideal for applications where liquids need to be sensed such as fill height, low fill and over fill.

The DF-G3 offers a simple interface to ensure easy setup and programming via displays and switches. The easy-to-read dual digital displays show both signal level and threshold simultaneously. Users can also setup the sensor remotely via a multi-function input wire which can be configured to control the LED, gate the amplifier’s output, remote teach the amplifier, or setup a robust cross-talk avoidance ring with up to seven amplifiers to solve dense sensing point applications.

With expert TEACH and SET functions, the DF-G3 ensures optimal gain and threshold for all applications, but especially for low-contrast applications at long detection range. Users also have full control over all operating parameters, including:

  • threshold
  • light or dark operate
  • output timing functions
  • gain level and response speed

Models with IO-Link enable a point-to-point communication link between a master device and a sensor, facilitating remote monitoring, teaching, and configuration.

Featuring energy-efficient light resistance and cross-talk avoidance, the DF-G3 provides stable detection in industrial lighting environments and dense sensing point applications. The sensor’s level action fiber clamp ensures stable, reliable and trouble-free fiber clamping.

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