PC-MAR23-PG31.1_Layout 1 07/03/2023 09:30 Page 31
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SENSORS, TRANSDUCERS & TRANSMITTERS SENSORS SEE AND REACT TO ‘LOTS OF THINGS’
Photoelectric sensors from Baumer offer the ability to perform reliably, even when faced with ‘variable’ conditions
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hen a sensing application demands a high level of performance and reliability in detecting objects and their positioning, the latest photoelectric sensors with IO-Link connectivity is said to be one of the best options. Photoelectric sensors are by design, able to deliver superior performance to size ratio compared to other types of sensors. Photoelectric sensors have the ability to see (and react) to ‘lots of things’ which can occur in the more challenging sensing applications. These ‘variables’ could have a detrimental effect on process system performance, for example, irregularly shaped or reflective objects, poor lighting conditions, variation of mounting angles or the presence of dust or debris . BAUMER’s range of photoelectric sensors are designed to provide a high performance in a compact design, so suit applications where space is really tight. They also have the ability to perform reliably even when faced with challenging object properties, variable mounting positions or inconsistent lighting
conditions. Operators also have the benefit of features such as plug and play integration, resulting in faster design-into systems and therefore quicker integration into production processes.
The range of photoelectric sensors includes a wide choice of models to suit specific application requirements. For example, their OT300/OT500 sensors for longer range measurement of objects up to 2.6m utilise time-of-flight measurement and provide
TRANSMITTER SIMPLIFIES COMMISSIONING, OPERATION & MAINTENANCE
merson has introduced the Rosemount 3408 Level Transmitter, a non-contacting radar device designed to optimise ease-of-use at every touchpoint, leading to increased site and worker safety and enhanced plant performance. The versatile level measurement solution is suitable for use in a range of industries and applications, such as chemical storage, mixing tanks and open air applications.. While the benefits of radar level measurement are widely acknowledged, they are still sometimes perceived as being complex to commission, operate and maintain. Addressing this concern, the device provides a range of functions that reduce complexity throughout its lifecycle, including an intuitive interface, Bluetooth wireless technology remote capabilities, predictive alerts, in-situ verification, data historian and an upgradeable design. The user interface provides clear pictorial instructions, allowing operators to be easily guided through installation, commissioning, proof-testing, operation and maintenance. This ease-of-use gives users the confidence to replace time-consuming manual procedures, thereby helping to increase safety and maximise productivity.
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The new device is based on frequency modulated continuous wave (FMCW) technology, which enables accurate and reliable measurement, even in challenging process environments. It is also suitable for use in critical safety applications such as overfill prevention, as it is Safety Integrity Level (SIL) 2-certified and designed according to the International Electrotechnical Commission’s IEC 61508 standard relating to functional safety. Emerson’s proprietary Smart Meter Verification software provides an easy means of verifying the health of the device, without interrupting the process. Emerson
www.emerson.com/Rosemount3408
reliable object detection of reflective, glossy or irregularly shaped objects. Also, the standardised IO-Link ensures quick and simple integration and fast parameterisation.
For smaller sensing applications their miniature 0200 sensors offer overall sizes from 8mm and therefore provide an outstanding size performance ratio. They offer high immunity to ambient light, operate with a point and line beam shape and are adjustable via qTeach or IO-Link with LED and laser along with qTarget. A through-beam sensor measures objects up to 6m.
Where the requirement is for a ‘standard’ sensor the 0300/0500 option which incorporates a powerful microcontroller is suitable for general process sensing applications. It features 7 sensor principles, 4 light sources along with line or point beam shapes. They are easy to install and operate and incorporate IO-Link, so are Industry 4.0 and IoT-ready.
Baumer
www.baumer.com/gb/en/
MARCH 2023 | PROCESS & CONTROL 31
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