AX03S3

ATEX Certified Biofilm Sensor, 1″ BSPP process connection

ALVIM's AX03S3 sensor represents an innovative and effective solution to one of the most common challenges in industrial water systems: biofilm formation in explosive environments. Thanks to its patented technology and high sensitivity, this sensor is capable of detecting bacterial growth from its earliest stages, long before visible effects or operational problems occur.

Designed to operate in demanding conditions, the AX03S3 combines durable materials such as titanium and zinc, ideal even for environments with seawater or corrosive media. Installation is simple thanks to its standard 1″ BSPP connection, and its compact design allows for easy integration into a variety of installations.

What truly sets this sensor apart is its ability to offer continuous, real-time monitoring, allowing companies to act quickly and accurately. There's no longer a need to blindly apply chemical treatments or rely on guesswork: with the AX03S3, interventions are made only when necessary, resulting in a significant reduction in operating costs, chemical usage, and production downtime.

In addition, the sensor easily communicates with existing automation systems via analog (4-20 mA) and digital (RS485/MODBUS RTU) outputs, making it compatible with most modern industrial infrastructures.

With proven technology in sectors such as food, energy, pharmaceuticals, desalination and water treatment, the ALVIM AX03S3 not only helps maintain process efficiency, but also contributes to extending the life of equipment and ensuring higher quality and hygiene standards.

AX03S3 is more than a sensor: it is an early warning system, a guarantee of control and an investment in efficiency.

Properties

Technical Characteristics Ranges / Specifications
Sensor type Electrochemical sensor for biofilm detection
Application Industrial (seawater, drinking water, process water, etc.)
Working electrode material Titanium
Reference electrode material Zinc
Threaded connector material PVC
Connection to the process 1” BSPP male thread
Biofilm detection range From 1% to 100% of surface coverage
Operating temperature -10°C to +50°C (optimum: +2°C to +40°C)
Maximum pressure supported Up to 10 bar
Minimum required conductivity > 10 µS/cm
Recommended minimum dissolved oxygen > 1 ppm for maximum sensitivity
Power supply 12 or 24 V DC ±20%, 500 mA
Communication outputs 4–20 mA analog, RS485/MODBUS RTU digital
Cabling 6 wires (2 power, 2 RS485, 2 4–20 mA signal)
Software / PC Requirements Windows XP at 10.1 GHz, 512 MB RAM, RS485 or USB port
AX03S3 Biofilm Sensor
Biofilm Sensor AX03S3

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