An important requirement in the operation of sewerage, wastewater and water treatment works is to find the interface or location of the high solids region of a settlement tank and the lower solids region above.
Detecting the presence of the sludge at a fixed level is one of the simplest ways of carrying out this control measurement. The sensors are installed, thru-beam mode with the transmitter and receiver aligned opposite of each other (for accurate detection), at a certain height and when the sludge reaches it, an alarm is raised. The alarm can be used to stop a pump, change the position of the bell mouth, divert the flow or call an operator to the site to investigate the problem.
The Telco Sensors series MPA 21 is a 2-channel, multiplexed photoelectric amplifier, which is to be used in conjunction with two sets of remote transmitters (LT) and receivers (LR). The series offers a choice between two individual relays or two individual NPN/PNP transistor outputs, with or without an adjustable 0-3 sec on/off time delay.
Use of a dual channel system allows the user to have a two stage control process, which can for example control a pump at the first level and an alarm/stop at a higher level avoiding overflow.
The two channels operate independently of each other with their own set of remote transmitter and receiver. The multiplexing function ensures that cross talk between channels is prevented. Telco’s infrared remote sensors LT and LR are unaffected by alignment, contamination and build up on the face of the sensor and are IP67 making for easy installation for a hassle free 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.
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