Air bubble detector BG series

ultrasonicfor indoor useindustrial

Product overview
The BG series ultrasonic bubble detectors are non‑invasive sensors designed to detect air bubbles and distinguish gas/liquid states in fluid‑filled flexible tubing. The sensors use dry coupling (no grease) and provide configurable response time and output modes to suit medical, bioprocessing and industrial automation environments.

The BG series bubble sensor can detect bubbles >1/3 of the tubing ID(inner-diameter)

Applications

• Medical devices: hemodialysis machines, organ transplantation systems, heart‑lung machines, blood pumps, microwave ablation devices.
• Biopharmaceutical and laboratory equipment: single‑use systems, fermenters, cell culture systems, vaccine production, tangential flow filtration, liquid chromatography devices.

Product features

• Easy installation: dry coupling with adjustable response time for precise detection points.
• Non‑invasive detection: clamps onto tubing without reopening the fluid path, maintaining hygienic conditions.
• Unaffected by color: detection accuracy is independent of tubing and liquid color.
• Multiple tubing sizes: available for a range of outer diameters; supports OEM integration and custom variants.
• Multi‑output modes: selectable outputs for direct integration with automation and control systems.
• Sensor calibration: parameter tuning for application‑specific sensitivity and response.

Product selection

• BG013N — 1/8 (3.2 mm)
• BG016N — 5/32 (4.0 mm)
• BG019N — 3/16 (4.8 mm)
• BG025N — 1/4 (6.4 mm)
• BG032N — 5/16 (7.9 mm)
• BG038N — 3/8 (9.5 mm)

Technical specifications

• Compatible liquids: water, blood, saline, beverages, gasoline, paint, etc.
• Tubing materials: PVC, silicone, PE, PUR and similar smooth‑walled tubing (no fiber/metal braid). Recommended wall thickness: 10–20% of OD. Tubing must be pressed to the bottom of the sensor slot for close contact.
• Housing material: ABS plastic
• Supply voltage: 5–30 VDC
• Current consumption: < 50 mA
• Operating temperature: 0 °C to 60 °C
• Storage temperature: -20 °C to 70 °C
• Relative humidity: 30%–90% (no condensation)
• Atmospheric conditions: avoid corrosive gases
• Self‑test: optional. External 0 V input to Self Test pin forces gas‑detected status and LED red to verify sensor operation without tubing.