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Distance Sensor BOD 21M - High performance, easy to use

Distance Sensor BOD 21M - High performance, easy to use

15 September 2008

The BOD 21M laser distance sensor from Balluff in the rugged metal housing expands the product family of photoelectric distance sensors for space-critical applications and increases their measuring range to 500 mm. Broad functionality and modern sensor technology with ease of handling make it the ideal choice for applications in robotics and automation, assembly and handling as well as the packaging and wood processing industry.

The BOD 21M is available in three versions with working ranges of from 20 to 45 mm, 20 to 200 mm and 20 to 500 mm. The sensor has a Laser Class 2 rating, allowing it to be used with no special safety precautions.

The BOD 21M provides a continuous voltage or current signal from 0 to 10 V or 4 to 20 mA which is proportional to the object distance and which can be set to the required range within the overall working distance. Two digital switching outputs are also provided. Fast setup and intuitive operation with broad functionality ensure high efficiency. Measuring ranges and switching points are simple to program using a rotary switch, and the material composition or color of the target have no effect on the measurement. The sensors can resolve object distance down to 30 mm depending on the selected measuring range.

Thanks to two independent switching outputs with push-pull final stages, the new BOD 21M can be used as either PNP normally open or NPN normally closed. The use can therefore decide himself how the output is switched without having to keep different models in stock.

The BOD 21M is connected using a 5-pin M12 connector which can be rotated on the sensor over a range of 270°. This means the laser distance sensor can be oriented to any desired position.

Mounting is child’s play. In the simplest case the user can attach the BOD 21M directly to the equipment using two screws. Alternately a mounting bracket is available. Of course Balluff also offers their BMS universal mounting system for even more mounting options. Alignment of the sensor is assisted by the red, highly visible optical measuring point.

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