Ultrasonic flow transducer BBFM-Q43K

ultrasonic transit-timegasstationary

Overview
The BBFM-Q43K is an ultrasonic flow transducer designed for flue‑gas measurement at a center frequency of 43 kHz. It is engineered for duct and stack installations requiring high-temperature operation and enhanced environmental protection, such as boiler exhaust monitoring and industrial emission ducts.

Measurement
Transit-time ultrasonic measurement at 43 kHz optimized for hot flue gas applications. Suitable for accurate flow detection in high-temperature gas streams where contactless acoustic measurement is required.

Technical specifications (table)
Parameter — Specification
Model — BBFM-Q43K
Center frequency — 43 kHz ±5%
Minimum impedance — 300 Ω ±20%
Capacitance — 3,000 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 — Stainless steel and LY12
Protection rating — IP68

Applications

• Flue-gas flow measurement
• Boiler exhaust monitoring
• Industrial emission ducts
• High-temperature gas transit-time measurement

Selection and integration
Choose and integrate the BBFM-Q43K based on gas composition and temperature, required acoustic path length, duct geometry and available installation space. Consider operating pressure, ingress protection for duct environments, and compatibility with drive/receive electronics and signal conditioning.

Technical specifications

• Model: BBFM-Q43K
• Center frequency: 43 kHz ±5%
• Minimum impedance: 300 Ω ±20%
• Capacitance: 3,000 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: Stainless steel and LY12
• Protection rating: IP68