Ultrasonic transit-time flow transducer BBFM-Q150K

massOEMgas

Product overview
BBFM-Q150K is an ultrasonic gas flow measurement transducer designed for integration in industrial gas flow meters, gas meters and transit-time gas measurement modules. It has a center frequency of 150 kHz ±5%, a pressure rating up to 3 MPa (≤30 kgf) and an operating temperature range of -40 to +80°C. The housing is made of 304 stainless steel and titanium alloy and the unit is rated IP68 for reliable operation in harsh environments.

Technical specifications (table)
Parameter | Specification
Model | BBFM-Q150K
Center frequency | 150 kHz ±5%
Minimum impedance | 500 Ω ±20%
Capacitance | 900 pF ±20% at 1 kHz
Operating voltage | Peak voltage <800 Vpp
Operating temperature | -40 to +80°C
Pressure rating | ≤30 kgf or 3 MPa
Half-power beam angle | 12° ±10% at -3 dB
Housing material | 304 stainless steel and titanium alloy
Protection rating | IP68

Specified gas flow applications

• Industrial gas flow meters
• Gas meters
• Gas velocity measurement
• Transit-time gas measurement modules

Acoustic and electrical characteristics
The half-power beam angle is 12° ±10% at -3 dB. Drive and receive electronics should be matched to the specified minimum impedance (500 Ω ±20%) and capacitance (900 pF ±20% at 1 kHz). Applied peak voltage must remain below 800 Vpp to avoid damage. Designed for transit-time measurement configurations; correct timing and signal processing are required for optimal accuracy.

Technical characteristics

• Model: BBFM-Q150K
• Center frequency: 150 kHz ±5%
• Minimum impedance: 500 Ω ±20%
• Capacitance: 900 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <800 Vpp
• Operating temperature: -40 to +80°C
• Pressure rating: ≤30 kgf or 3 MPa
• Half-power beam angle: 12° ±10% at -3 dB
• Housing material: 304 stainless steel and titanium alloy
• Protection rating: IP68