Alvim A001S3 Biofilm Sensor
Standard biofilm sensor for most industrial applications, with strong corrosion resistance suited to seawater use.
Alvim A001S3 Biofilm Sensor
The Alvim A001S3 is a standard biofilm sensor that provides real-time detection and monitoring of bacterial fouling in industrial pipelines, cooling towers and process water. Its corrosion-resistant titanium and PVC construction makes it particularly well suited to seawater applications. The sensor communicates via 4-20 mA and RS485/MODBUS RTU for integration into existing monitoring systems.
Description
The Alvim A001S3 is Alvim’s standard biofilm sensor, providing real-time detection and monitoring of bacterial fouling in industrial pipelines, cooling towers and process water. Its titanium working electrode, zinc counter electrode and PVC threaded connector give it corrosion-resistant construction that is particularly well suited to seawater applications.
The sensor mounts via a 1″ BSPP threaded connection and measures sensitivity of 1-100% of surface covered by biofilm, detecting the first bacterial layer. It operates across a temperature range of -10 to +60°C, at pressures below 10 bar, and requires water conductivity greater than 10 µS/cm and oxygen levels above 1 ppm at maximum sensitivity. Power is supplied at 12/24V DC ±20%, 500 mA, with data output via 4-20 mA and RS485/MODBUS RTU over a 6-wire cable.
It is suited to cooling tower water treatment, Legionella monitoring, Clean-in-Place processes, and general food safety and process water monitoring.
Why Use This
Corrosion-Resistant Design
Titanium and PVC construction stands up to seawater and other corrosive process water, extending sensor service life.
Real-Time Fouling Detection
Detects the first bacterial layer and measures up to 100% surface coverage, giving early warning before biofilm becomes a larger problem.
Simple Integration
A standard 1″ BSPP threaded connection plus 4-20 mA and RS485/MODBUS RTU outputs allow straightforward installation into existing pipelines and control systems.
Applications
- Cooling tower water treatment — real-time biofilm monitoring in cooling water systems
- Legionella monitoring — detection of bacterial fouling conditions linked to Legionella risk
- Clean-in-Place (CIP) processes — monitoring for biofilm before and after cleaning cycles
- Food safety and process water monitoring — general bacterial fouling detection in process water
- Seawater-fed industrial pipelines — corrosion-resistant construction suited to seawater service
FAQ
What does the A001S3 detect?
It detects and monitors bacterial fouling (biofilm), measuring 1-100% of the surface covered by biofilm and flagging growth from the first bacterial layer.
Is the A001S3 suitable for seawater applications?
Yes, its titanium and PVC construction is corrosion-resistant and particularly well suited to seawater use.
How does the sensor connect to process piping?
It connects via a 1″ BSPP thread.
What data outputs does it provide?
It communicates via 4-20 mA and RS485/MODBUS RTU, wired with a 6-wire cable under 8mm external diameter.
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