Beswick Engineering Co., Inc.
Beswick Engineering is committed to offering innovative, high performance products backed by prof……...

The ultrasonic ARK75-THD Airducer® Transducer from Airmar brings proven dependability to level, flow and distance measurement applications.The ARK75-THD includes standard internal shielding and 8 mm M3 PCB standoffs. Itoperates at 75 kHz and its sensing range is 20 cm to 10 m. The ARK75-THD's rugged one-piece Kynar PVDF housing makes it suitable for the most chemically aggressive environments.Its threaded design facilitates installation in various applications, and it can accommodate transceiver and signal processing electronics.
Applications
Level measurement
Flow monitoring
Food and beverage processing
Features
Standard internal protection
Rugged one-piece PVDF housing that is U.S. FDA compliant
8 mm M3 PCP standoffs
Threaded design makes it easy for installation in various applications
Options
Complete assembly offered with standard cable lengths
10 KΩ thermistors temperature compensation
Mounting caps offered in M32, BSPor NPT threads
Nut — 1.5" BSP thread
12 mm extension sleeve
Specifications
Peak operating frequency: 75 kHz ± 4%
Weight: 250 g (8.8 oz.)
Acoustic window: Kynar® 720
Housing material: Kynar® 720
Minimum and maximum sensing range*: 20 cm to 10 mm (10" to 33')
Minimum parallel resistance: 150 Ω, ±30%
Minimum receive sensitivity: −165 dB re 1 V/µPa (at best receive frequency)
Minimum transmit sensitivity: 106 dB re, 1 µPa/V at 1 m (at best transmit frequency)
Beamwidth: 14° ± 2° at −3 dB
Free capacitance: 1850 pF ± 20% at 1 kHz
Typical sensing range: 25 cm to 7 m (10" to 23')
Operating temperature: −40 °C to 90 °C (−40 °F to 194 °F)
Maximum driving voltage: 1000 Vpp at 2% duty cycle tone burst
*Pulse-Echo Mode. Maximum and minimum ranges are best-case scenarios. Depending on signal processing and drive circuitry, the actual range may vary.
Acoustical Data

Image Credit: AIRMAR Technology Corporation
Dimensional Drawings

Image Credit: AIRMAR Technology Corporation
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