Reflex light barrier functions without a reflector
October 2017
Sensors & Transducers
Wenglor has introduced its latest optical reflex light barrier which functions without a reflector. By simply pressing a key, the barrier detects any object located between itself and any defined background.
The new device allows for reliable detection of objects at distances of up to 500 mm without a reflector. The unique functional principle is based on an evaluation of signal strength and angle measurement and requires nothing more than a background as reference. By doing away with reflectors, the reflex light barriers require less space and can be more flexibly integrated into the system layout. Other benefits include reduced costs and faster initial startup because fewer components have to be installed and serviced.
In addition, the device offers an intelligent function for dynamic readjustment of the switching threshold and offsets external influences such as contamination and temperature fluctuation, ensuring lasting precise switching performance and less idle time.
Visible red light makes the sensors easy to align and they can be set up for the respective application by simply pressing the teach-in key.
The high precision measuring process of the reflex light barrier even provides for detection of transparent objects made of glass, PET and sheet materials. For example, it can check for the presence of transparent sheet materials and trays in packaging processes and reliably detects all types of objects on conveyor belts. In the beverage industry the device monitors the presence of bottles uninterrupted throughout the lifecycle from manufacture of the bottle and filling, through to the machines for the return of bottles for the refundable deposit.
The reflex light barrier can be used in harsh environments and has IP67 protection. Temperature range operation is from -40 to +60ºC.
For more information contact Anastas Schnippenkotter, ASSTech Process Electronics & Instrumentation, +27 (0)11 708 9200, [email protected], www.asstech.co.za
Further reading:
Distance sensor for confined spaces
ifm - South Africa
Sensors & Transducers
The O6D100 from ifm has been designed as a powerful all-rounder for typical applications in object detection, distance measurement and positioning.
Read more...
Long-range laser distance measuring sensor
Vepac Electronics
Sensors & Transducers
The MS-100A is a long-range laser distance measuring sensor with a range of 150 to 1000 mm. This sensor excels in applications requiring extended measurement capabilities, such as quality control and logistics.
Read more...
Listening for damage to wind turbines
Sensors & Transducers
The Fraunhofer Institute for Integrated Circuits, working in concert with the Fraunhofer Institute for Wind Energy Systems, has developed a solution that can be used to identify cracks and breakage inside wind turbine blades remotely at an early stage.
Read more...
Verification using Heartbeat Technology is a breeze
Endress+Hauser South Africa
Sensors & Transducers
Heartbeat Technology reflects Endress+Hauser’s long-term commitment to enhancing measurement reliability and efficiency across a growing product portfolio.
Read more...
Enhancing efficiency and reliability in the energy sector
VEGA Controls SA
Sensors & Transducers
VEGA offers practical, reliable solutions through specialised measuring instruments and deep industry know-how, all tailored to help energy companies keep costs under control while meeting strict regulatory standards.
Read more...
Condition monitoring for hydroelectric plants
ifm - South Africa
Sensors & Transducers
The energy company Compagnia Valdostana delle Acque generates electricity in the region’s 32 hydroelectric power plants with a total capacity of over 900 MW. Vibration sensors from ifm monitor the maintenance requirements of the turbines and power generators at all times.
Read more...
Precision sensing for water treatment
ifm - South Africa
Sensors & Transducers
ifm electronic has introduced two next-generation sensors designed for South Africa’s bulk and wastewater sector, engineered to withstand harsh environments and deliver long-term reliability.
Read more...
The next generation of inductive scanning encoder solutions
ATI Systems
Editor's Choice Sensors & Transducers
With the launch of the ECI 1122 and EQI 1134 rotary encoders, positioning specialist, HEIDENHAIN has introduced a new benchmark in inductive scanning technology that raises the bar for motion control and precision automation.
Read more...
Next-generation condition monitoring
Sensors & Transducers
The next generation Sitrans MS200 multisensor from Siemens is setting new standards in condition monitoring.
Read more...
Telco sensors for blocked/empty chute detection
Sensors & Transducers
Telco sensors overcome the problems of contaminated environments through powerful high-performance infrared sensors that ensure penetration of harsh pollution and guarantee reliable detectio
Read more...
printer friendly version