Sensors & Transducers


Telco sensors in the transport industry

September 2013 Sensors & Transducers

Telco’s SM 9000 series is a high powered self contained, thru-beam photoelectric sensor line that offers superior optical performance and power with a sensing range of 70 metres with high excess gain. The sensors are housed in a compact M18 threaded cylindrical housing available in plastic or high-grade stainless steel housing material.

The units are fully encapsulated to provide a robust construction and guarantee superior durability, ensuring maximum resistance to severe vibrations, shock and impact. The IP69K rating together with high-power infrared beam of the system, ensures that the sensors operate reliably even in the harshest environments including high-pressure wash, water spray, heavy fog, mist, dust, dirt and industrial contamination. Furthermore, the unique contamination-shedding lens design, a signature Telco Sensors design, reduces build-up of contamination and water on the front lens. The optical design of the SM 9000 guarantees easy alignment of the sensor pairs.

The SM 9000 series features cross-talk elimination which enables up to four individual sensor pairs to operate independently to ensure that optical cross talk interference between the sensor pairs is prevented. This is configurable with the use of a simple 2-wire external channel selection in the transmitter and receiver sensor pair. No electrical synchronisation is required between the transmitter and receiver sensor pairs, as they are configured independently. This makes the system ideal for installations where sensor pairs are installed in close proximity with each other.

The advanced circuitry of the sensors provides the high EMI/RFI noise immunity and the system is also designed with a high light immunity for problem free operation even with direct exposure to extraneous light. Applications in the transport industry include: weighbridges, vehicle detection, positioning, monitoring, verification, contouring and anti-collision.



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