Omron has added three variants to its E3Z family of photosensors, to
cover the detection of clear PET bottles and transparent films. The E3Z-B
retroreflective series, which is suitable for PET bottle detection, uses
a powerful light source to overcome the problems of beam scattering,
while the E3Z-L diffuse reflection type uses a narrow 2.5mm wide beam to
detect targets as small as 0.1mm diameter. The E3Z-G tuning fork
through-beam model comes with single and dual sensor arrangements for
belt and web tension monitoring, its construction ensuring correct
sensor/light source alignment at all times.
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