75 kHz transducer for hot flue-gas measurement
The BBFM-Q75K is an ultrasonic flow transducer for flue-gas flow measurement, boiler exhaust monitoring and industrial emission ducts. It is also intended for transit-time measurement in high-temperature gases.
Technical specifications
| Parameter | Specification |
|---|---|
| Model | BBFM-Q75K |
| Center frequency | 75 kHz ±5% |
| Minimum impedance | 500 Ω ±20% |
| Capacitance | 950 pF ±20% at 1 kHz |
| Operating voltage | Peak voltage <900 Vpp |
| Operating temperature | -40 to +150°C |
| Pressure rating | ≤3 kgf or 0.3 MPa |
| Housing material | Titanium alloy |
| Protection rating | IP68 |
Applications
- Flue-gas flow measurement
- Boiler exhaust monitoring
- Industrial emission ducts
- High-temperature gas transit-time measurement
Selection and integration
Selection should account for the gas composition and temperature, required acoustic path, duct geometry, available installation space, operating pressure, ingress protection, and the drive and receive electronics.