Air Ultrasonic Ceramic Transducers |
328ET/R250 |
|
Features |
One piece solid metal case
High sensitivity and sound pressure level
Complete seal meet IP67
Low cost |
Applications |
Remote control devices
Solid and liquid level measurements
Intrusion Alarms
Energy management systems |
Specification |
328ET250 |
Transmitter |
328ER250 |
Receiver |
Center Frequency (Fc) |
32.8±1.0KHz |
Bandwidth(-6dB) |
1.0KHz (Tx), 1.0KHz(Rx) |
Transmitting Sound Pressure Level
at Fc; 0dB re 0.0002µbar per 10Vrms at 30cm |
113dB min. |
Receiving Sensitivity at Fc, 0dB=1 volt/µbar |
-67dB min. |
Capacitance at 1KHz ± 20% |
2400pF |
Max.Driving Voltage(cont.) |
20Vrms |
Total Beam Angle -6dB |
33° typical |
Operation Temperature |
-30 to 70° C |
Storage Temperature |
-40 to 80° C |
All specification taken typical at 25°C; closer frequency tolerance can be supplied upon request.
Models available |
1. 328ET/R250 |
Aluminum Housing |
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