data sheet 1 1999-04-01 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. type ordering code fp 310 l 100-30 q65310-l100-u30 fp 310 l 100-75 q65310-l100-u75 contactless potentiometer fp 310 l 100 version 2.0 dimensions in mm 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
data sheet 2 1999-04-01 fp 310 l 100 absolute maximum ratings electrical characteristics ( t a = 25 c) mechanical ratings parameter symbol limit values unit operating temperature t a C 25 / + 70 c supply voltage v in 15 v supply current i in 75 ma linear angle of rotation fp 310 l 100-30 fp 310 l 100-75 f 0 ? 30 0 ? 75 deg. deg. output signal for corresponding angle of rotation i out 0 ? 20 ma load resistance r l 0 ? 500 w temperature error in the range C 25 c ? + 70 c C 3 % fs linearity fp 310 l 100-30 fp 310 l 100-75 f l 1 2 % fs % fs hysteresis C 1 % fs sense of rotation (looking onto shaft) C clockwise C required torque m d 0.2 typ. ncm max. perm. compressive axial force f a compr. 10 n max. perm. tensile axial force f a tens 3n max. perm. radial force f r 10 n max. perm. speed n 3000 min -1 cycles (life) l 10 8 C
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