Rotary Position Sensors

Penny + Giles has further expanded the output options of its SRH501P and SRH502P contactless rotary position sensors with the introduction of a 4 to 20 mA version. Coupled with their IP69K rating and -40 to +115 °C operating temperature range, the sensors are suitable for use in the majority of factory automation and process control applications. Use of Hall effect technology allows them to operate in high dither vibration conditions with no deterioration of the sensing element. Operating from 9-30 Vdc unregulated power supply, the sensors can be factory-programmed with up to 341 different angles from 20 to 360° in 1° increments and clockwise or anticlockwise output direction (including 1xCW and 1xACW). They provide 12 bit resolution (0.025%) over the selected measuring range. Their low output signal noise, <10 μArms, eliminates the need for additional output signal filtering. The sensors are manufactured using marine-grade cast aluminum housings with 87.5 mm diameter flange and 12 mm diameter shaft. They are mechanically interchangeable with the company’s SRS880 and SRH880 rotary sensors, enabling existing users to quickly and simply upgrade to higher sophistication and a greater level of control.