400EP18A

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 400EP18A Dimensions: dimensions are in mm 18.0 10.0 40 Silicone Rubber 10.0 12.0 + Dot 8.0 REF. 6.0 REF. + Green 14.8 ø0.5 5.00 Impedance/Phase Angle vs. Frequency 90 75 60 45 30 15 0 -15 -30 -45 -60 -75 -90 Transceiver Center Frequency 40.0±1.0Khz Bandwidth (-6dB) 400EP18A 1.5Khz Capacitance at 1Khz ±20% 35 38 39 40 41 42 43 44 45 Sensitivity/Sound Pressure Level -75dB min. 500 1900 pF Max. Driving Voltage (cont.) 20Vrms -6dB Total Beam Angle Operation Temperature 85° Storage Temperature -40 to 80°C Tested under 10Vrms @30cm -55 125 -60 120 -65 115 -70 110 -75 105 -80 100 -85 95 -90 90 -95 85 36 37 38 39 40 41 42 43 Black Al. Housing 44 Frequency (Khz) Beam Angle: Tested at 40.0Khz frequency -20 to 70°C All specification is typical at 25°C Closer frequency tolerance, shorter ringing and wider bandwidth models can be supplied upon request. Model available: 400EP18A 37 Frequency (Khz) 35 1 36 108dB min. 1.2 max. Ringing (ms) 1000 330 300 270 0 0 -6 -12 -18 -24 -30 30 60 90 240 120 210 180 150 45 SPL (dB) Transmitting Sound Pressure Level at resonant frequency; 0dB re 0.0002µbar per 10Vrms at 30cm Receiving Sensitivity at resonant frequency 0dB = 1 volt/µbar Nominal Impedance (Ohm) 10000 100 Sensitivity (dB) 400EP18A Impedance (Ohm) 100000 Phase (Degree) Tested under 1Vrms Oscillation Level Specification