series ecs www.vishay.com vishay sfernice revision: 17-sep-12 1 document number: 54008 for technical questions, contact: sferprecisionpot@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 precision rotative transducers, conductive plastic, economic series (ecs) low cost industrial motion tr ansducers, conductive plastic track. features ?size 09: ( 7 / 8 ") 22.2 mm ? long life: 5 million cycles ? bush or servo mount ing types available ? rear comolded terminals ? cost effective solution for any industrial applications ? material categorization: for definitions of compliance please see www.vishay.com/doc?99912 size 09 model 78 rs 78 rb 78 ps 78 pb quick reference data sensor type rotational , conductive plastic output type output by turrets market appliance industrial dimensions 22.2 mm ( 7 / 8 ") dia. electrical specifications theoretical electrical angle (tea) (aea) - 3 independent linearity (over tea) a ? 1 %, on request: b ? 0.5 % c ? 0.35 % a ? 2 % actual electrical angle (aea) 340 5 ohmic values (r t ) 1 k ? - 2 k ? - 5 k ? - 10 k ? (on request other values) 1 k ? - 2 k ? - 5 k ? - 10 k ? ohmic value tolerances at 20 c stan dard: 20 %/special: 10 % 20 % output smoothness 0.1 % maximum power rating at 70 c 0.3 w wiper current recommended: a few a - 1 ma max. (continuous) tap (current or voltage) 1: on request na resistance load on wiper ? 1000 x r t end voltage ? 0.5 % dc insulation resistance ? 1000 m ? , 500 v dc dielectric strength ? 500 v rms , 50 hz mechanical specifications mechanical angle (ma) 360 continuous on request: stops 342 5 mounting type servo bushing servo bushing shaft guiding sleeve bearings shaft stainless steel option: flat or screw driver slot on shaft on request na termination turrets wiper precious metal multi-finger contact starting torque (n.cm) ? 0.5 torque on stops (n.cm) ? 20 weight (g) bushing 17 g 3 g servo 12 g 3 g performance life (10 6 cycles) 5 temperature range - 55 c to + 125 c climatic category 55/125/04 speed rotation (rpm) 150 sine vibration on 3 axes 15 g from 10 hz to 2000 hz mechanical shocks on 3 axes 50 g - 11 ms - half sine
series ecs www.vishay.com vishay sfernice revision: 17-sep-12 2 document number: 54008 for technical questions, contact: sferprecisionpot@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 notes (1) on request: ? 10.3 mm or 12.3 mm (2) on request: withou t antirotation pin dimensions in millimeters, genera l tolerance 0.5 mm rear view dimensions in millimeters, general tolerance 0.5 mm ordering information/description ecs 78 p s m a t 103 e4 series model type fixation mechanical stops linearity tap ohmic value lead finish p s: servo on request a: 1% or 2 % on request 102: 1 k ? r b: bushing m b: 0.5 % t: voltage 202: 2 k ? c: 0.35 % u: current 502: 5 k ? position to 103: 10 k ? be specified sap part numbering guidelines ecs 78rb b 102 series model linearity ohmic value 78 pb 78 rb size 09 8 7.92 0.13 ? 1.6 0.1 (2) 1.6 ? 22.2 0.13 ? 9.52 0.1 (1) ? 9.52 0.79 3 / 8 - 32 nef - 2a ? 6.35 ? 8 max. 7 min. 9.3 0.25 22.2 0.8 8 0.4 2.5 max. 78 ps 78 rs size 09 ? 22.2 0.13 ? 3.175 + 0 - 0.013 ? 19.8 max. 12.7 0.8 12.4 0.4 2.5 max. 1.6 1.6 1.5 min. + 0.1 - 0.1 + 0.1 - 0.1 ? 19.05 + 0 - 0.05 + 0.1 - 0.1 general tolerance 0.5 mm standard 3 turrets size 09 ? 9.6 1 2 3 90 ? 8.6 90 3 1 ? 1.6 3.7 max. special (4 turrets) intermediate tap on request 2 4
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