ST3214.4 Toroidal Conductivity Sensor

Conductivity range from 0 to 20 mS/cm. Output 4/20mA

Manufacturer: B&C Electronics
Category: Water quality, SENSORS, Conductivity Sensors

The ST3214.4 toroidal conductivity sensor from B&C Electronics uses the principle of inductive conductivity, where two toroidal coils measure the conductivity of the solution without the need for electrodes in direct contact with the liquid, which reduces contamination and polarization problems.

These conductivity meters incorporate a temperature sensor for automatic compensation, ensuring accurate measurements under adverse conditions.

They are designed to measure EC in applications such as river and canal measurements, water treatment, cooling towers, water quality monitoring, nutrient analysis in slurry, to estimate nitrogen and potassium levels with high reliability.

The sensor body is made of PVC-C, resistant to temperatures up to 50 °C and pressures up to 10 bar at 25 °C.

Installation can be in-line or submersible, facilitated by a 1 1/2” MNPT thread on both ends. The sensor is powered through the signal loop and provides a 4-20 mA current output proportional to the measured conductivity.

Properties

Principle of operation: Measures conductivity using the inductive principle, without direct contact with the liquid and with unbeatable precision thanks to integrated temperature compensation.
Available models and ranges:
- ST 3214.4: 0 to 20 mS/cm.
- ST 3214.5: 0 to 200 mS/cm.
- ST 3214.6: 0 to 2000 mS/cm.
- ST 3254.1: 0 to 10 mS/cm.
- ST 3254.2: 0 to 100 mS/cm.
- ST 3254.3: 0 to 1000 mS/cm.
- Special model on request: 0 to 300 mS/cm.
Body material: PVC-C, corrosion resistant.
Temperature range: Up to 50 °C.
Pressure range: Up to 10 bar at 25 °C.
Temperature compensation: Integrated temperature sensor for automatic compensation.
Exit: 4-20 mA analog signal proportional to the measured conductivity.
Feeding: 11 to 30 V DC.
Connections: 1 1/2” MNPT thread on both ends for in-line or submersible installation.
Main applications:
- Water treatment.
- Measurement in rivers and canals.
- Cooling towers.
- Water quality monitoring.
- Measurement of nutrients in slurry.
Key Benefits:
- Resistant to contamination and polarization.
- Easy installation and maintenance.

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