Ultrasonic sensors UNAR 18 (Sde = 400 mm) Ultrasonic proximity sensors sample drawing M18 x 1 91,5 71,6 81,5 SW 24 Teach- in LED M12 x 1 general data sample picture special type chemically resistant scanning range sd 60 ... 400 mm scanning range far limit Sde 60 ... 400 mm hysteresis typ. 4 % Sde repeat accuracy < 0,5 mm temperature drift < 0,18 % Sde/K response time ton < 25 ms release time toff < 25 ms sonic frequency 400 kHz adjustment Teach-in alignment aid target indication flashing output indicator LED green electrical data voltage supply range +Vs 12 ... 30 VDC current consumption max. (no load) 35 mA output current < 200 mA voltage drop Vd < 2 VDC residual ripple < 10 % Vs short circuit protection yes reverse polarity protection yes mechanical data type cylindrical threaded housing material stainless steel 1.4435 (V4A) coating active face Parylene material O-ring FFKM front of sensor durable against pressure 6 bar, 20’000 cycle width / diameter 18 mm height / length 91,5 mm connection types connector M12 ambient conditions operating temperature 0 ... +60 °C protection class IP 67 1 www.baumer.com 2/6/2015 Ultrasonic sensors UNAR 18 (Sde = 400 mm) Ultrasonic proximity sensors order reference output circuit UNAR 18N6912/S14G NPN make function (NO) UNAR 18N7912/S14G NPN break function (NC) UNAR 18P6912/S14G PNP make function (NO) UNAR 18P7912/S14G PNP break function (NC) 2 www.baumer.com 2/6/2015