Contactless Potentiometer FP 310 L 100 Features • Devoid of friction and abrasion at contact point • No electrical contact noise • Insensitive to contamination, moisture ingression, corrosion and vibration • Low operating torque • Long lifetime Typical applications • Angular encoder • Electric vehicles Dimensions in mm Type Ordering Code FP 310 L 100-30 Q65310-L100-U30 FP 310 L 100-75 Q65310-L100-U75 The contactless potentiometer comprises a GaAs Hall effect sensor actuated by two permanent magnets which are mounted on the end of the potentiometer spindle. The device is complete with supply voltage stabilisation and series connected output amplifier. Two measuring ranges are offered, 0…30° and 0…75°, and the output is given as a current of 0…20 mA linearly proportional to the angle of rotation. Temperature compensation circuitry is also included. Semiconductor Group 1 07.96 FP 310 L 100 Maximum ratings Parameter Symbol Value Unit Operating temperature TA VIN IIN – 25 / + 70 °C 15 V 75 mA Supply voltage Supply current Electrical characteristics (TA = 25 °C) Linear angle of rotation FP 310 L 100-30 FP 310 L 100-75 Φ Output signal for corresponding angle of rotation 0…30 0…75 deg. deg. IOUT 0…20 mA Load resistance RL 0…500 Ω Temperature error in the range – 25 °C…+ 70 °C – ±3 % FS Linearity FP 310 L 100-30 FP 310 L 100-75 FL ≤±1 ≤±2 % FS % FS Hysteresis – ≤±1 % FS Sense of rotation (looking onto shaft) – clockwise – 0.2 typ. Ncm 10 N 3 N Max. perm. radial force Md Fa compr. Fa tens Fr 10 N Max. perm. speed n 3000 min-1 Cycles (life) L 108 – Mechanical ratings Required torque Max. perm. compressive axial force Max. perm. tensile axial force Semiconductor Group 2