180 kHz ultrasonic measurement for gas metering
The BBFM-Q180K is a gas flow measurement transducer for industrial gas flow meters, gas meters, gas velocity measurement and transit-time gas measurement modules. Its specified center frequency is 180 kHz ±5%.
The recommended reference range is 0.10 to 1.5 m. The half-power beam angle is 6° ±10% at -3 dB.
Technical specifications
| Parameter | Specification |
|---|---|
| Model | BBFM-Q180K |
| Center frequency | 180 kHz ±5% |
| Recommended range | 0.10 to 1.5 m |
| Minimum impedance | 1,000 Ω ±20% |
| Capacitance | 700 pF ±20% at 1 kHz |
| Operating voltage | Peak voltage <500 Vpp |
| Operating temperature | -40 to +80°C |
| Pressure rating | ≤16 kgf or 1.6 MPa |
| Half-power beam angle | 6° ±10% at -3 dB |
| Housing material | Stainless steel |
| Protection rating | IP68 |
| Weight | 82 g ±5% with 20 cm cable |
Target gas measurement systems
- Industrial gas flow meters
- Gas meters
- Gas velocity measurement
- Transit-time gas measurement modules
Electrical and environmental specifications
The transmit and receive interface should match the 1,000 Ω ±20% minimum impedance and the 700 pF ±20% capacitance at 1 kHz. Applied peak voltage must stay below 500 Vpp.
Operation is specified from -40 to +80°C and up to 16 kgf or 1.6 MPa. The transducer has an IP68 rating. The stated 82 g ±5% weight applies to the version with a 20 cm cable.