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At the forefront of laser sensors
After more than four decades in the design and manufacture of photoelectric sensors, Banner Engineering is at the forefront of laser sensor production which is highlighted in its very latest Q3X and Q4X ranges.
Featuring high-speed part detection as fast as 250µs, the Q3X laser contrast sensor can capture up to 2,000 events per second and detect small changes in contrast up to 300mm away. There are also background suppression models available in 50 and 100mm ranges with 60 and 100mm background suppression respectively. These features make the Q3X ideal for solving applications with small contrast changes where a background needs to be ignored.
Out of the box, the Q3X LD50 operates like a fixed-field laser sensor and detects targets within its 50mm sensing range. However, the sensor can be programmed for low contrast sensing within this range, while ignoring objects at least 60mm distant. This allows the sensor to accurately detect its target without background objects affecting its performance.
This fixed background suppression is key in overcoming the main problem of standard diffuse-mode sensors where objects in the background affect the application. A typical application is label detection on a bottle where contrast differences between the label and bottle provide reliable detection but the sensor must ignore the shiny metal rail in the background. The shiny metal background could cause a false trigger for standard diffuse-mode sensors.
Featuring superior and versatile sensing performance, the Q4X reliably detects distance changes as small as 1mm and covers a 25 to 300mm range across multiple target colours, materials and surfaces. With the ability to detect the presence/absence of a target or an object’s orientation, the Q4X solves a variety of sensing applications.
The Q4X is ideal for difficult distance-based sensing applications as it easily detects objects regardless of target surface reflectivity, including black foam on black plastic, black rubber in front of metal, multi-colour packaging and targets of all colours. Additionally, the sensor provides superior resistance to ambient light interference. Analogue versions with 4-20Ma and 0-10V output options are also available offering a wide variety of application solutions, including fill-level indication, part positioning, roll diameter, loop control and thickness/height verification.
Offering a simplified user experience, the Q4X provides a clear readout from the angled four-digit display, easily viewed from multiple positions. The series is further enhanced with the inclusion of a dual teach mode option. Featuring new firmware, the dual teach mode version combines window thresholds on both target distance and target reflected intensity, allowing it to reliably solve difficult applications with ease. The Q4X can now detect clear objects without requiring a retro-reflector. Dual mode can be used to error-proof applications by ensuring the correct colour part is located at the correct position.
The Q4X is constructed with robust housings rated to IP67, IP68 or IP69K, allowing use in wet and high-pressure wash-down environments, while durable FDA-grade stainless steel resists mechanical impact, over tightening, extreme vibration and aggressive cleaning procedures.
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