Flue-gas flow sensing at temperatures up to 150°C
The BBFM-Q42K is a 42 kHz ultrasonic flow transducer for flue-gas measurement. Applications include boiler exhaust monitoring, industrial emission ducts and transit-time measurement in high-temperature gas.
The specified operating temperature spans -40 to +150°C. Pressure is limited to 3 kgf or 0.3 MPa, and the product is rated IP68.
Electrical and operating specifications
| Parameter | Specification |
|---|---|
| Model | BBFM-Q42K |
| Center frequency | 42 kHz ±5% |
| Minimum impedance | 150 Ω ±20% |
| Capacitance | 2,600 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 | Titanium alloy |
| Protection rating | IP68 |
Applications
- Flue-gas flow measurement
- Boiler exhaust monitoring
- Industrial emission ducts
- High-temperature gas transit-time measurement