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Ultrasonic Air Transducer Technical Data Sheet 41 kHz AIRDUCER® Ultrasonic Transducer Applications • Level measurement in chemically aggressive environments • Food and beverage processing • Flow monitoring • Rugged one-piece PVDF housing is U.S. FDA compliant • Housing design will accommodate transceiver and signal processing electronics Best Operating Frequency: 41 kHz, ±4% Minimum Transmit Sensitivity at Best Transmit Frequency: 108 dB re 1μPa/V at 1 m Minimum Receive Sensitivity at Best Receive Frequency: -175 dB re 1V/μPa Minimum Parallel Resistance: 200 Ω, ±30% Minimum and Maximum Sensing Range*: 30 cm to 20 m Typical Sensing Range: 35 cm to 15 m Free (1 kHz) Capacitance: 5,000 pF, ±20% pF Beamwidth (@ -3 dB Full Angle): 14°, ±2° Maximum Driving Voltage (2% Duty Cycle Tone Burst): 1,800 Vpp Operating Temperature: -40°C to 90°C Weight: 560 g Housing Material: Kynar® 720 Acoustic Window: Kynar® 720 • Standard internal shielding Options • Cable length can be customized • 10 KΩ thermistor available for temperature compensation • Mounting caps available in BSP, NPT, or M32 threads • Available in alternate housing material (AR41) *Pulse-Echo Mode: Minimum and maximum ranges are best case scenarios. Actual range may vary, depending on drive circuitry and signal processing. Note: Optimally, performance measurements should be taken when the t ransducer reaches a steady state. ransducer reaches a steady state. t Directivity Pattern May be shown with optional equipment. Transmit & Receive Voltage Response Thread Choices: 1" tapered BSP x 0.75" long 1" NPT x 0.94" long (ref.) M32-1.5 x 0.75" long Additional Resources Theory of Operations Applying Ultrasonic Technology Impedance Magnitude & Phase Airmar’s T1 Developer’s Transceiver Module can be used for evaluation of AIRDUCER® Transducers. Frequency in kHz Magnitude Phase ©Airmar Technology Corporation ARK41_rU 04/11/24 As Airmar constantly improves its products, all specifications are subject to change without notice. All specifications typical at 22°C. Factory Mutual approved models suitable for: Class I, Division 1, Hazardous Locations. AIRDUCER® is a registered trademark of Airmar Technology Corporation. AMPHENOL is a registered trademark of Amphenol Corporation. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affiliated

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