400PT120

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 PROWAVE Air Ultrasonic Ceramic Transducers 400PT120 Dimensions: dimensions are in mm Impedance/Phase Angle vs. Frequency Tested under 1Vrms Oscillation Level Center Frequency 40.0±1.0Khz Bandwidth (-6dB) 400PT120 2.0Khz Transmitting Sound Pressure Level at 40.0Khz; 0dB re 0.0002µbar per 10Vrms at 30cm Receiving Sensitivity at 40.0Khz 0dB = 1 volt/µbar Nominal Impedance (Ohm) 115dB min. Max. Driving Voltage (cont.) 10000 1000 100 35 36 37 38 39 40 41 42 43 1000 2400 pF 20Vrms -50 130 -55 125 -60 120 -65 115 -70 110 -75 105 -80 100 -85 95 -90 90 -30 to 80°C Storage Temperature -40 to 85°C 36 37 38 85° typical All specification taken typical at 25°C Closer frequency tolerance, shorter ringing and wider bandwidth models can be supplied upon request. 39 40 41 42 43 Frequency (Khz) Beam Angle: Tested at 40.0Khz frequency 330 300 270 0 0 -6 -12 -18 -24 -30 30 60 90 Model available: 240 Aluminum Housing 44 120 210 180 150 45 SPL (dB) -68dB min. -6dB Total Beam Angle Operation Temperature 400PT120 45 Tested under 10Vrms @30cm 35 1 44 Frequency (Khz) Sensitivity (dB) Capacitance at 1Khz ±20% 90 75 60 45 30 15 0 -15 -30 -45 -60 -75 -90 Sensitivity/Sound Pressure Level 1.2 max. Ringing (ms) Impedance (Ohm) 100000 Transceiver 400PT120 Phase Angle (Degree) Specification