With the Wheel encoder MA20 from Baumer positions and velocities can be easily and flexibly determine directly on the conveyor belt. For this, a high-resolution optical Incremental Rotary Encoders combined with an accurate measuring wheel and a spring-loaded bracket. Depth line speeds require a high resolution. The encoder supplies with patented "Low Harmonics" technology 25.000 pulses per revolution, allowing even in slow motion high accuracy.
16 resolutions between 100 and 25.000 pulses are predefined and selectable via a HEX switch. The same device can therefore be used for different applications, reducing the number of variants and reduces storage costs. The continuously variable pressure of the measuring wheel with differing application also provides ideal conditions for liability without slippage.
The wear-resistant measuring wheel has a circumference of 200 mm. To match the different conveyor belt materials for maximum adhesion, different rubber hardnesses to choose from. Thanks to the rotating, swivel and height-adjustable mounting arm can be mounted to the wheel encoders quickly and easily. He operates on supply voltages between 4,75 and 30 VDC. For the electrical connection provides an eight-pole connector M12. The MA20 is suitable for ambient temperatures between-20 ° and + 85 ° C and meets the standard requirements of protection IP64.
In many applications it is not practical or even impossible to detect the speed of a conveyor belt through a right on the drive motor mounted encoder. Often makes the slip of the tape measure to be inaccurate or you want to retrofit a belt speed measurement, for example, to synchronize the product transport with subsequent processing steps. Typical application examples are the label imprint in packaging or bottling processes, but also applications where products need to maintain a certain speed, such as by baking or reheating furnaces. Measuring wheel encoders are ideally suited for such tasks. Further applications can be found in parcel and letter sorting and in the textile and printing industries.