Ultrasonic sensors UNAR 18 (Sde = 400 mm) Ultrasonic distance measuring 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 close limit Sdc 60 ... 400 mm scanning range far limit Sde 60 ... 400 mm repeat accuracy < 0,5 mm resolution < 0,3 mm response time ton < 60 ms release time toff < 60 ms temperature drift < 2 % of distance to target So sonic frequency 400 kHz adjustment Teach-in alignment aid target indication flashing light indicator yellow LED / red LED electrical data voltage supply range +Vs 15 ... 30 VDC output current < 20 mA residual ripple < 10 % Vs short circuit protection yes reverse polarity protection yes voltage output current consumption max. (no load) 35 mA output signal 0 ... 10 V / 10 ... 0 V current output current consumption max. (no load) 55 mA output signal 4 ... 20 mA / 20 ... 4 mA load resistance +Vs max. < 1100 Ohm load resistance +Vs min. < 400 Ohm 1 www.baumer.com 2/6/2015 Ultrasonic sensors UNAR 18 (Sde = 400 mm) Ultrasonic distance measuring sensors 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 order reference output circuit UNAR 18I6912/S14G current output UNAR 18U6912/S14G voltage output 2 www.baumer.com 2/6/2015