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. It operates 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, BSP or 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