43 kHz ultrasonic measurement for hot flue-gas duties
The BBFM-Q43K is an ultrasonic flow transducer for flue-gas measurement at a center frequency of 43 kHz. Its applications include boiler exhaust monitoring, industrial emission ducts and transit-time measurement in high-temperature gas.
Technical specifications
| Parameter | Specification |
|---|---|
| Model | BBFM-Q43K |
| Center frequency | 43 kHz ±5% |
| Minimum impedance | 300 Ω ±20% |
| Capacitance | 3,000 pF ±20% at 1 kHz |
| Operating voltage | Peak voltage <1,500 Vpp |
| Operating temperature | -40 to +150°C |
| Pressure rating | ≤3 kgf or 0.3 MPa |
| Housing material | Stainless steel and LY12 |
| 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.