r . ny oe en , oe - - pT ro < ~ fice Loo, oe ae Le \ 6 Angular-position sensors Ye sfoUy Potentiometric angular-position sensors Measurement of angles up to 93 @ Potentiometric angular- position sensor with linear characteristic curve @ Automatic return from angu- lar position to basic position @ Sturdy design for exacting demands @ Compact sizes Application . Angular sensor (block diagram) Voltage ratio as a function of angle of The angular-position sensor is in a plastic 1 Pick-off brush, 2 Main brush, 3 Wiper arm, rotation housing. It is used in underhood applica- 4 Potentiometer plate with resistance track, tions where it is exposed to extreme envi- 5 Pick-off track, 6 Measurement track, ronmental stressing. The sensor is resistant | 7 Angie of rotation (throttle angle). 4,00 to fuels, oils, saline fog, and industrial 0,95 + climate. 1 2 3 ; ; 315 Design and function 2 The angular-position sensor is of the poten- . tiometric type. 3 It is used in electronic fuel-injection (EFI) $ engines where it serves to generate a voltage ratio which is proportional to the throttle valve's angle of rotation. 012 It also features a return spring for moving it 0,1 back to the zero position. OR ae a0 This angular-position sensor has a linear 0 30 characteristic curve when used as an un- 45 6 Angular range @ loaded voltage divider. The accuracy is 3% . (of the stroke) at a voltage of 5 V. Technical data / Range Design Part number 0 261 211 004/003 g . . Direction of rotation (definition as per dimension drawings) lll The angle sensor is available for clock- . . : Total resistance 4kQ + 20 % wise rotation (I) and counterclockwise Anale of ; Electrical 5 rotation (Il) ngle of rotation max. lectrica 93 + 2 , Mechanical stop 122+8 Explanation of symbols: Wiper current max. 10 mA Operating voltage Uy 5V U, Output voltage Uy Supply voltage Operating voltage max. Nmax 43 V v Arle ot votavion Temperature range Sensor 40 ... +135 C ? 9 Plug -40 ... +105 C . Vibration loading Frequency 500 Hz 30 g') Accessories Frequency 500 ... 1000 Hz 15 . Functional reliability Available from AMP Deutschland GmbH, Angle range 0... 85 Complete operating cycles 500 000 Amperestr. 7-11, D-63225 Langen, : Angle range 0... 45 Half operating cycles 1 000 000 Tel. 0 61 03/70 90. Angle range 2 Jitter cycles 10 000 000 Socket housing AMP No. 826 886-4 ee Y Max. end-stop loading Contact pins (Direction of rotation | and II) 11.5N-cm p Degree of protection IP 54A Cable cross section 0.5... 1mm? AMP No. 827 396-1 1... 2.5 mm? AMP No. 827 397-1 3 contact pins are required for one housing. 1) g = 9.81 m - s-? (acceleration due to gravity)5 BOSCH Dimension drawings Part number Direction Contact assignment in plug/color A B Cc Q 261 211 004 I 3/black 2/green _1/orange 0 261 211 003 1forange 2/qreen _ 3/black 160 2% TEES oan 05 +0,13 Q 261 211 004, Detail X 0.9 40,25 @8,13025 212,047.25 14,2007 Wiring diagram (R remaining/residual resistance). Note on wiring diagram When connecting, pay attention to correct polarity. False polarity can destroy the potentiometer. Angular-position sensors 4 a 4 ri