Mineralab
Mineralab's origin dates back to the 1960's when its original founder developed the pro……...

The ultrasonic ARK120-THD Airducer® Transducer from Airmar reliably delivers non-contact level, flow, distance and proximity measurement. The ARK120-THD operates at 125 kHz, has a sensing range from 15 cm to 5 m and it includes standard internal shielding and 8 mm M3 PCB standoffs.The ARK120-THD's rugged one-piece Kynar PVDF housing makes it suitable for chemically aggressive environments, and its threaded design facilitates installation in various applications.
Applications
Level measurement
Processing of food and beverages
Features
Installation in various applications is enabled by threaded design
US FDA compliant rugged one-piece PVDF housing
M3 PCB standoffs of 8 mm
Standard internal shielding
Options
Standard cable lengths offer complete assembly
Nut — 1.5" BSP thread
Extension sleeve of 12 mm
10 KΩ thermistors offer temperature compensation
Specifications
Peak operating frequency: 125 kHz ± 4%
Weight: 250 g (8.8 oz.)
Minimum transmit sensitivity: 102 dB re, 1 µPa/V at 1 m (at best transmit frequency)
Minimum receive sensitivity: −172 dB re 1 V/µPa (at best receive frequency)
Minimum and maximum sensing range*: from 15 cm to 5 m
Typical sensing range: from 20 cm to 3 m (8" to 10')
Minimum parallel resistance: 500 Ω, ±30%
Free capacitance: 1000 pF ± 20% at 1 kHz
Maximum driving voltage: 800 Vpp at 2% duty cycle tone burst
Housing material: Kynar® 720
Operating temperature: −40 °C to 90 °C (−40 °F to 194 °F)
Acoustic window: Kynar® 720
Beamwidth: 12° ± 2° at −3 dB
*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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