Ultrasonic flow transducer BBFM-Q1M-B

volumefor liquidsfor process monitoring

Overview
The BBFM-Q1M-B is a wetted ultrasonic flow measurement transducer for industrial liquid flow meters, pipe velocity measurement and water-treatment flow monitoring. It is suitable for integration into embedded flow measurement modules and inline sensor housings. Documented reference range: 0.05 to 3 m. Operating temperature: -40 to +80°C. Pressure rating: up to 10 kgf / 1 MPa. Protection rating: IP68.

Acoustic, electrical and mechanical data (table)
Parameter — Specification
Model — BBFM-Q1M-B
Center frequency — 1 MHz ±5%
Recommended range — 0.05 to 3 m
Minimum impedance — 40 Ω ±20%
Capacitance — 1,500 pF ±20% at 1 kHz
Operating voltage — Peak voltage <300 Vpp
Operating temperature — -40 to +80°C
Pressure rating — ≤10 kgf / 1 MPa
Beamwidth — 4.5° ±10% half-power angle at -3 dB
Housing material — 304 stainless steel
Protection rating — IP68
Weight — 150 g ±5% (with 1.5 m cable)

Acoustic and electrical characteristics
Documented acoustic characteristics: reference range 0.05–3 m and a 4.5° ±10% half-power angle (-3 dB). Electronics must accommodate minimum impedance 40 Ω ±20%, capacitance 1,500 pF ±20% at 1 kHz and peak voltage below 300 Vpp. Specified weight applies to the version with a 1.5 m cable.

Technical specifications

• Model: BBFM-Q1M-B
• Center frequency: 1 MHz ±5%
• Recommended range: 0.05 to 3 m
• Minimum impedance: 40 Ω ±20%
• Capacitance: 1,500 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <300 Vpp
• Operating temperature: -40 to +80°C
• Pressure rating: ≤10 kgf / 1 MPa
• Beamwidth: 4.5° ±10% half-power angle at -3 dB
• Housing material: 304 stainless steel
• Protection rating: IP68
• Weight: 150 g ±5% (with 1.5 m cable)