Wetted ultrasonic transducer for liquid-flow measurement
The BBFM-Q32K is intended for industrial liquid flow meters, pipe velocity measurement, water-treatment flow monitoring and embedded flow measurement modules. Its specified center frequency is 32 kHz ±20%.
The acoustic specification gives a half-power beam angle of 20° ±10% at -3 dB. This beam characteristic should be considered with the required acoustic path when positioning the transducer.
Electrical and environmental specifications
| Parameter | Specification |
|---|---|
| Model | BBFM-Q32K |
| Center frequency | 32 kHz ±20% |
| Minimum impedance | 30 Ω ±20% |
| Capacitance | 75000 pF ±20% at 1 kHz |
| Operating voltage | Peak voltage <3000 Vpp |
| Operating temperature | -40 to +80°C |
| Pressure rating | ≤10 kgf or 1 MPa |
| Half-power beam angle | 20° ±10% at -3 dB |
| Housing material | 304 + PI |
| Mounting | Refer to product dimensional drawing |
| Protection rating | IP68 |
Specified liquid-flow uses
- Industrial liquid flow meters
- Pipe velocity measurement
- Water-treatment flow monitoring
- Embedded flow measurement modules
Integration points
Match the transmit and receive electronics to the stated minimum impedance of 30 Ω ±20% and capacitance of 75000 pF ±20% at 1 kHz. The peak voltage must remain below 3000 Vpp.
Use the dimensional drawing to verify the mounting interface and available space. The completed installation must operate within -40 to +80°C and no more than 10 kgf or 1 MPa while retaining the stated IP68 protection.