Ultrasonic anemometer BBFM-V225K

IP68

Compact transducer for ultrasonic wind measurement
The BBFM-V225K is specified for 2D and 3D ultrasonic anemometers, meteorological monitoring, ventilation airflow measurement and industrial duct monitoring. Center frequency: 225 kHz ±5%; reference range: 0.05 to 1.0 m. Half-power beam angle: 9.2° ±10% at -3 dB. Housing material: rubber. Protection rating: IP68. Weight: 3.7 g ±5%.

Technical specifications

• Model: BBFM-V225K
• Center frequency: 225 kHz ±5%
• Recommended range: 0.05 to 1.0 m
• Minimum impedance: 1600 Ω ±20%
• Capacitance: 1200 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <500 Vpp
• Operating temperature: -40 to +80°C
• Pressure rating: ≤3 kgf (0.3 MPa)
• Half-power beam angle: 9.2° ±10% at -3 dB
• Housing material: Rubber
• Mounting: Refer to product dimensional drawing
• Protection rating: IP68
• Weight: 3.7 g ±5%

Specified applications

• 2D and 3D ultrasonic anemometers
• Meteorological monitoring
• Ventilation airflow measurement
• Industrial duct monitoring

Integration requirements
The transmit and receive electronics must be matched to a minimum impedance of 1600 Ω ±20% and a capacitance of 1200 pF ±20% at 1 kHz. Peak driving voltage must remain below 500 Vpp. Verify mounting position and alignment using the product dimensional drawing. Ensure operation within -40 to +80°C and below 3 kgf (0.3 MPa) to maintain performance and IP68 protection.

Mounting and protection

• Use the dimensional drawing to confirm mounting holes and alignment
• Seal interfaces according to IP68 requirements after installation
• Avoid exposure above specified pressure and temperature limits
• Check mechanical fixation to prevent shift that affects beam geometry