500MB120

Telephone +44 (0)1493 602602 Fax +44 (0)1493 665111 Email:sales@midassensors.com www.midassensors.com Electra House, 32 Southtown Road Great Yarmouth, Norfolk NR31 0DU, England Air Ultrasonic Ceramic Transducers 500MB120 Dimensions: dimensions are in mm Impedance/Phase Angle vs. Frequency Specification Dual Transducer Center Frequency 90 75 60 45 30 15 0 -15 -30 -45 -60 -75 -90 10000 1000 50.0±1.0Khz 100 45 Bandwidth (-6dB) 3Khz Transmitting Sound Pressure Level at 50.0Khz; 0dB re 0.0002µbar per 10Vrms at 30cm Receiving Sensitivity at 50.0Khz 0dB = 1 volt/µbar Sensitivity/Cross Talk Ratio 113dB min. 46 47 48 49 50 51 52 53 54 55 Frequency (Khz) Sensitivity/Sound Pressure Level Tested under 10Vrms @30cm -50 130 -55 125 -60 120 -65 115 -70 110 -75 105 1000 Ohm -80 100 -85 95 Capacitance at 1Khz ±20% 2400 pF -90 Max. Driving Voltage (cont.) 20Vrms Nominal Impedance (Trans.) Total Beam Angle -6dB 15 dB 30° Sensitivity (dB) -67dB min. 90 45 46 47 48 -20 to 70°C Storage Temperature -40 to 80°C 50 51 52 53 54 55 Beam Angle: Tested at 50.0Khz frequency 300 270 All specification taken typical at 25°C Closer frequency tolerance can be supplied upon request. 49 Frequency (Khz) 330 Operation Temperature SPL (dB) 500MB120 Impedance (Ohm) 100000 Phase Angle (Degree) Tested under 1Vrms Oscillation Level Transmitter Impedance Transmitter Phase Receiver Impedance Receiver Phase 0 0 -6 -12 -18 -24 -30 30 60 90 240 120 210 180 150 Supplied by Midas Components Ltd - 01493 602602 - www.midascomponents.co.uk