Immersible ultrasonic transducer BBFM-Q25K

high-frequencymeasurement

Overview
The BBFM-Q25K is specified for industrial liquid flow meters, pipe velocity measurement, water-treatment flow monitoring and embedded flow measurement modules. It operates at a center frequency of 25 kHz ±5% and has a stated reference range of 500 m. Its acoustic field is horizontally omnidirectional. This directional characteristic and the required acoustic path should be considered together when arranging the transducer in a measurement system.

Technical specifications
Model: BBFM-Q25K
Center frequency: 25 kHz ±5%
Recommended range: 500 m
Minimum impedance: 150 Ω ±20%
Capacitance: 16000 pF ±20% at 1 kHz
Operating voltage: Peak voltage <500 Vpp
Operating temperature: -10 to +40°C
Pressure rating: ≤3 kgf or 0.3 MPa
Acoustic field: Horizontally omnidirectional
Mounting: Refer to product dimensional drawing
Protection rating: IP68
Weight: 390 g ±5% with 2 m cable

Specified applications

• Industrial liquid flow meters
• Pipe velocity measurement
• Water-treatment flow monitoring
• Embedded flow measurement modules

Electrical and mechanical integration
The transmit and receive electronics should be matched to the stated minimum impedance of 150 Ω ±20% and capacitance of 16000 pF ±20% at 1 kHz. Peak voltage must remain below 500 Vpp. Confirm the dimensional drawing against the available installation space. The operating conditions must remain within -10 to +40°C and no more than 3 kgf or 0.3 MPa, while preserving the specified IP68 protection.

Technical characteristics / specifications

• Model: BBFM-Q25K
• Center frequency: 25 kHz ±5%
• Recommended range: 500 m
• Minimum impedance: 150 Ω ±20%
• Capacitance: 16000 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <500 Vpp
• Operating temperature: -10 to +40°C
• Pressure rating: ≤3 kgf or 0.3 MPa
• Acoustic field: Horizontally omnidirectional
• Mounting: Refer to product dimensional drawing
• Protection rating: IP68
• Weight: 390 g ±5% with 2 m cable