Electricity + Control September 2018

round up

SENSORS, SWITCHES + TRANSDUCERS

Sensor array bars for detection across conveyors and chutes

Magnetic sensor for machine construction

The new SAB Series Sensor Array Bar is ideal for use on conveyors and chutes in the materials handling industry. Each array conveniently fits multiple QS18 sensors into a robust aluminium housing for use on heavy-duty packaging lines. Standard Sensor Ar- ray Bar models work well for some of the more common conveyor and chute widths. Key benefits include: User-Specified Arrays: SAB Sensor Array Bars can be made to meet specific customer needs. Users follow easy-to-understand design rules to select a sensing mode and the appropriate number of QS18 beams. The length of the aluminium housing can be cus- tomised to fit a wide variety of lengths that may be needed on a conveyor belt or chute. Ease of use and convenient installation: Affixing multiple QS18 sensors inside one aluminium bar makes installation and alignment easier than working on each sensor individually. Using a single device for this task also means effortless wiring with only one M12 connector to power all the sensors and consolidate the individual outputs into a single discrete output.

The SIKO MSC500, available from Instro- tech, is the latest stage of development in ultra-compact magnetic sensors for indus- try, as well as for machine and plant con- struction. Common applications for SIKO’s latest compact sensors include linear actu- ators, stop adjustment for saws, and meas- urement of the tracking of solar plants. The sensor measures paths, angles or rotational speeds – contactless and wear- free – in conjunction with the associated magnetic tapes or rings. It reads the mag- netic code of the magnetic tape or mag- netic ring incrementally. This information is converted into digital square-wave signals and sent to electronics downstream. Enquiries: Instrotech. Tel. +27 (0) 10 595 1831 or email sales@instro- tech.co.za

Heavy duty design and improved stability: The robust aluminium ex- trusion and sturdy mounting ensure long service life in challenging en- vironments and protect the array bars from impact and vibration. This rugged system resists vibration damage and prevents the sensors from shifting out of alignment, which ensures con- sistently reliable results. Enquiries: BrandonTopham. Email brandon.topham@retautomation.com

Pressure sensors for water-based media

Based on tried-and-tested pressure sensors, ifm presents a version for special applications. The new PE2 family of pressure sensors is ideally suited for water-based media because of the materials used for the wetted parts (ceram- ics, EPDM, stainless steel). Further applications

are ammonia circuits in refrigerating technology and monitoring of clean- ing agents and other sec- ondary processes in the food industry. The PE2 family is not suitable for oils and oil-based media owing to its EPDM cell sealing. The ceramic measur- ing cell ensures excellent overload protection even in cases of cavitation, and a high resistance to media. Enquiries:Tel. +27 (0) 12 450 0400 or email info.za@ifm.com