One such product is the World-Beam QS30H2O series of opposed-mode water sensors. These sensors are designed to detect the presence or level of water-based liquids, inside a glass or plastic container. The sensors use a powerful 1450 nm LED sensing beam to burn through many types of thin-walled glass and plastic containers. This wavelength is however attenuated by water-based liquids, resulting in an enhanced contrast for reliable liquid detection.
The QS30H2O has a powerful beam that can burn through both clear and translucent containers such as IV bags, HDPE milk containers, clear glass test tubes, coloured or clear PET bottles, etched or frosted containers and thin walled PFA/FEP tubes. The unique electrical design and the 1450 nm sensing beam allow these sensors to detect low contrast applications involving any type of water based product. Examples include beer, shampoos, conditioners, lotions and sauces. The sensors are also able to penetrate many different labels, dependent on the material thickness and type.
Figure 1 depicts the typical low contrast application. Clear PET bottles that have been filled with a clear liquid (water) and transported down a conveyor system. The customer needs to confirm that the level of the product is above a set point. Here the sensors have been fitted with horizontal apertures to shape the beam into a pattern more suitable for the application. What would normally be a difficult, low contrast application for standard photoelectric sensors is a simple, reliable application for the H2O series.
Figure 1
Figure 2 shows an application for a customer who needs to ensure the correct level of milk in a two litre, translucent plastic container. Again this application poses no problem for the H2O sensors from Banner. The application worked even though the sensors had to be positioned in an area where the container handle was present.
Figure 2
Brown glass bottles, such as those typically used for beer, or plastic coloured containers as seen in Figure 3, create a demanding situation for standard photo-electrics. The 1450 nm wavelength beam used with Banner’s H2O series has sufficient power to burn through the containers and yet be attenuated enough by the liquid to make reliable liquid detection possible.
Figure 3
For applications that demand smaller profile sensors, or where the product to be inspected is very small, Banner offers the R55FH2O sensor. This sensor is used in conjunction with glass fibre optic leads. Glass fibre units can be manufactured to any shape required, and the sensing end can be manufactured to suit the application. These are ideal for the pharmaceutical industry, where detecting the product level in small vials and bottles is often a challenging application.
The car of the future listens
Sensors & Transducers
The perception of external sounds in cars has been lacking, even in automated driving. That is why Fraunhofer IDMT-HSA is researching the integration of acoustic sensor technology in its KI4BoardNet project with the Hearing Car.
Read more...Telco Sensors for blocked or empty chute detection
Sensors & Transducers
In most industries there is a problem with photoelectric sensors as highly contaminated environments make it difficult to operate and sense reliably. Telco Sensors overcomes this through its powerful high-performance infrared sensors that ensure penetration of harsh pollution to guarantee reliable detection.
Read more...High-performance LineScan camera
Sensors & Transducers
Lynred, a global leader in infrared imaging technologies, has launched its next-generation SWIR LineScan camera and sensor, specifically designed for the inspection of silicon wafers, solar panels and waste management.
Read more...Online monitoring solution optimises asset performance across SKF South Africa
Sensors & Transducers
SKF’s sales, service and management teams has joined forces to deliver an advanced, integrated online monitoring solution for a key customer in Tunisia, operating nine mines, five plants and eleven production lines.
Read more...OMRON launches new non-contact
Sensors & Transducers
OMRON has unveiled its latest innovation in non-contact safety door switches, the D40A-2, which is designed to enhance workplace safety and streamline machinery operations.
Read more...Vibration monitoring in three axes ifm - South Africa
Sensors & Transducers
Machine vibrations are important indicators when it comes to assessing the current condition of a machine. ifm’s new and smart IO-Link vibration sensor helps to implement a simple and scalable condition monitoring approach using but a single device.
Read more...Smart solutions for weighing in hazardous milling zones
Sensors & Transducers
Minebea Intec supplies highly accurate weighing and inspection solutions that enable milling companies to organise their processes safely, efficiently and compliantly - even in hazardous areas.
Read more...Optimise sludge treatment and reduce operational costs
Sensors & Transducers
The Endress+Hauser inline measuring devices, the Proline Teqwave MW 300 and the Proline Teqwave MW 500, determine the total solids content of wastewater directly through microwave transmission. This is considerably less time consuming than the process of determining total solids content in a laboratory.
Read more...Family of analysers for smart and efficient chlorine measurement ABB South Africa
Sensors & Transducers
ABB has launched ChloroStar, a family of sensors, transmitters and accessories for accurate and reliable chlorine measurement and analysis that enable users in the water, wastewater and other industries to control chlorine more efficiently, enhancing treatment and increasing process uptime.
Read more...Leading the way with Level 9 PDS implementation
Sensors & Transducers
Applying a Level 9 Proximity Detection System (PDS) to a mining operation is as much about changes in behaviour as it is about technical solutions, according to Pieter Wolfaardt from Apex, Booyco Electronics’ training partner of choice.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version