ARK50-THD Airducer® Ultrasonic Air Transducer for Chemically Harsh Environments

Airmar’s ARK50-THD Airducer^® Transducer reliably delivers unparalleled ultrasonic sensing performance with level, flow and distance measurement applications.Its rugged one-piece Kynar PVDF housing makes it suitable for chemically aggressive environments. The ARK50-THD operates at 50 kHz and its sensing range is 30 cm to 15 m. Itincludes standard internal shielding and 8 mm M3 PCB standoffs.The ARK50-THD'sthreaded design facilitates installation in various applications, and it can accommodate transceiver and signal processing electronics.

Applications

Level measurement

Food and beverage processing

Flow monitoring

AIRMAR ARK50-THD Ultrasonic TransducerPlay

Video Credit: AIRMAR Technology Corporation

Features

Rugged one-piece PVDF housing is US FDA compliant

Threaded design allows for installation in various applications

Standard internal shielding

8 mm M3 PCB standoffs

Options

Nut — 2" BSP thread

Complete assembly available with standard cable lengths

10 KΩ thermistors for temperature compensation

12 mm extension sleeve

Mounting cap available in BSP, NPTor M32 threads

Specifications

Weight: 250 g (8.8 oz.)

Peak operating frequency: 50 kHz ± 4%

Minimum transmit sensitivity: 105 dB re, 1 µPa/V at 1 m at best transmit frequency

Minimum parallel resistance: 350 Ω, ± 30%

Minimum receive sensitivity: −170 dB re 1 V/µPa at best receive frequency

Beamwidth: 10° ± 2° at −3 dB

Minimum and maximum sensing range^*: 30 cm to 15 m

Typical sensing range: 35 cm to 10 m (14″ to 33')

Maximum driving voltage: 1000 V_pp at 2% duty cycle tone burst

Housing material: Kynar^® 720

Free capacitance: 5000 pF ± 20% at 1 kHz

Acoustic window: Kynar^®720

Operating temperature: −40 to 90 °C (−40 to 194 °F)

^*Pulse-Echo Mode. Minimum and maximum ranges are known to be the best-case scenarios. Actual range might differ based on drive circuitry and signal processing.

Acoustical Data

Image Credit: AIRMAR Technology Corporation

Dimensional Drawings

Image Credit: AIRMAR Technology Corporation