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