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The ultrasonic ATK120 Airducer® Transducer from Airmar reliably delivers non-contact level, flow, distance, proximity and object detection measurement. It operates at 125 kHz and its sensing range is 15 cm to 5 m.The ATK120'srugged one-piece Kynar PVDF housing makes it suitable for the most chemically aggressive environments.
Applications
Automation control
Obstacle avoidance
Food and beverage processing
Level measurement
Proximity sensing
Features
The cylindrical design allows for installation in various applications
Rugged one-piece PVDF housing is US FDA compliant
Options
10 KΩ thermistor available for temperature compensation
Specifications
Peak operating frequency: 125 kHz ± 4%
Minimum and maximum sensing range*: 15 cm to 5 m
Minimum receive sensitivity: −172 dB re 1 V/µPa at best receive frequency
Minimum transmit sensitivity: 102 dB re, 1 µPa/V at 1 m at best transmit frequency
Minimum parallel resistance: 500 Ω, ±30%
Maximum driving voltage: 800 Vpp at 2% duty cycle tone burst
Weight: 30 g (1.1 oz.)
Typical sensing range: 20 cm to 3 m (8″ to 10′)
Free capacitance: 1000 pF ± 20% at 1 kHz
Operating temperature: −40 °C to 90 °C (−40 °F to 194 °F)
Beamwidth: 10° ± 2° at −3 dB
Acoustic window: Kynar® 720
Housing material: Kynar® 720
*Pulse-Echo Mode: The best-case situations are the minimum and maximum ranges. Depending on the driving circuitry and signal processing, the actual range may vary.
Acoustical Data

Image Credit: AIRMAR Technology Corporation
Dimensional Drawings

Image Credit: AIRMAR Technology Corporation
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