Ultrasonic sensors UNDK 20N7914/S35A Ultrasonic proximity sensors dimension drawing 20 15 LED M8 x 1 14 42 6,5 3,2 29,5 9,5 Teach- in 5,7 11,8 general data photo scanning range sd 10 ... 200 mm scanning range far limit Sde 30 ... 200 mm hysteresis typ. 4 % Sde repeat accuracy < 0,5 mm temperature drift < 0,18 % Sde/K response time ton < 10 ms release time toff < 10 ms sonic frequency 380 kHz adjustment Teach-in alignment aid target indication flashing output indicator LED green electrical data connection diagram voltage supply range +Vs 12 ... 30 VDC current consumption max. (no load) 35 mA output circuit NPN break function (NC) BN (1) output current < 200 mA BK (4) voltage drop Vd < 2 VDC residual ripple < 10 % Vs short circuit protection yes reverse polarity protection yes NPN BU (3) WH (2) +VS Z output 0V control/Teach-in mechanical data type rectangular housing material polyester width / diameter 20 mm internal and external Teach-in height / length 42 mm compact housing depth 15 mm connection types connector M8 ambient conditions operating temperature -10 ... +60 C protection class IP 67 www.baumer.com 4/10/2013