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Home/Product Center/Control/Air Bubble Detectors/ABD
ABD Air Bubble Detector for Transparent Tubing

FOREACH ABD Air Bubble Detection Module for identifying bubbles, droplets and gas/liquid states in transparent tubing, available in configurations for transparent flexible tubing with outer diameters of 1.6–6.4 mm

The FOREACH ABD Air Bubble Detection Module uses non-contact infrared detection to identify bubbles, droplets and gas/liquid states in transparent tubing without contacting the fluid. Its signals can support reagent-line monitoring, liquid-supply checks and abnormal-state alarms.

Configurations cover tubing ODs of 1.6–6.4 mm. The specified detectable bubble or liquid width is >0.8 mm, with a response time of 6 ms. Confirm detection with the actual tubing wall, flow conditions, fluid optical properties and mounting position.

Transparent PU, PVC, PTFE, PFA and FEP tubing can be evaluated for the applicable configuration. Match TTL/UART connections, the Modbus RTU protocol and model-specific IO outputs to the equipment controls. Validate detection thresholds and alarm handling in the assembled system.

Typical Applications:

Air-bubble alarms, Droplet detection, Transparent-tubing status monitoring, Reagent-line status monitoring, Fluidic anomaly protection, Tubing-path monitoring in automated instruments

Model:This product is custom-made
Product TypeAir Bubble Detection Module
Detection MethodNon-contact infrared detection
Detection TargetAir bubbles / droplets / gas-liquid state
Compatible Tube OD1.6 / 2.0 / 2.5 / 3.2 / 4.0 / 4.8 / 6.0 / 6.4 mm
Compatible TubingPU / PVC / PTFE / PFA / FEP
Detected MediumLiquid / Gas
Detectable SizeWidth > 0.8 mm
Communication InterfaceTTL
Communication ProtocolModbus RTU
Output MethodUART/TTL digital signal, 0–5 V IO analog voltage, and IO digital alarm signal
Operating Voltage5V DC ±5%
Operating Current< 20 mA
Response TimeAir-bubble detection: 6 ms; liquid detection: 6 ms
Operating Temperature15 °C–45 °C
Storage Temperature-25 °C–65 °C
Overall Dimensions35.4 × 19.6 × 29.4 mm
Weight6.9 g

2D Drawing Not Available Yet

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Datasheet not yet available

The datasheet for this product has not been uploaded yet.

Frequently Asked Questions

It does not contact the fluid directly. The module clamps the transparent tubing for detection, helping reduce contamination risk and additional flow resistance in the fluidic path.

Standard configurations cover transparent tubing ODs of 1.6, 2.0, 2.5, 3.2, 4.0, 4.8, 6.0, and 6.4 mm.

supports. communication interface TTL, supports Modbus RTU.

Detection depends on the actual bubble size. The detector can identify bubbles or liquid columns wider than 0.8 mm; smaller bubbles or liquid columns may not be detected reliably.