EC-120 High Conductivity Digital Probe
Digital four-graphite electrode conductivity sensor for high conductivity water applications. Features K=0.45 cell constant for measuring highly conductive solutions.
Product Highlights
View all in Specifications tabOverview
The EC-120 is a specialized digital conductivity electrode featuring four-graphite sensor technology designed for measuring electrical conductivity (EC) in high conductivity water applications. With its K=0.45 cell constant, this probe accurately measures extremely conductive solutions ranging from 10 μS/cm to 500 mS/cm, making it ideal for industrial processes involving highly mineralized or saline waters.
Key Features
- Digital Technology: Superior accuracy and stability with built-in digital processing
- Four-Graphite Electrode: Enhanced electrode design for high conductivity measurements
- Extended High Range: 10 μS/cm to 500 mS/cm for highly conductive solutions
- Optimized Cell Constant: K=0.45 specifically designed for high EC waters
- Dual Output Options: Supports both RS485 Modbus RTU and 4-20mA current output
- Automatic Temperature Compensation: Integrated PT1000 sensor ensures accurate readings
- Direct Connection: Connect directly to computer or PLC without additional instrumentation
- High Protection: IP68 waterproof rating ensures reliable operation
Applications
- High salinity water monitoring
- Seawater desalination processes
- Brine concentration monitoring
- Industrial wastewater with high TDS
- Chemical process streams
- Salt production facilities
- High-strength industrial effluents
- Mining industry water treatment
- Oil and gas produced water
Technical Specifications
The EC-120 delivers precise conductivity measurements from 10 μS/cm to 500 mS/cm with automatic temperature compensation via the integrated PT1000 sensor. The four-graphite electrode design with K=0.45 cell constant provides optimal sensitivity for high conductivity measurements while maintaining excellent long-term stability.
Digital signal processing eliminates noise and interference, providing stable and reliable measurements even in electrically noisy industrial environments with high ionic concentrations.
Connectivity and Integration
With its RS485 Modbus RTU interface, the EC-120 seamlessly integrates into modern SCADA systems, IoT networks, and industrial automation platforms. The 4-20mA current output option ensures backward compatibility with traditional industrial controllers, PLCs, and data acquisition systems.
The probe operates on 9-24V DC power supply, making it compatible with standard industrial power systems.
Understanding Cell Constant
The K=0.45 cell constant makes this probe specifically suitable for high conductivity applications:
- Seawater (typically 50 mS/cm)
- Brine solutions (50-500 mS/cm)
- High-strength industrial effluents
- Concentrated chemical solutions
- Mining and mineral processing waters
Installation Notes
The robust design allows for easy installation in tanks, pipes, and process equipment handling high conductivity fluids. The 5-wire/BNC or terminal connection ensures secure signal transmission and reliable operation. The four-graphite electrode configuration provides excellent chemical resistance and extended service life in demanding applications.
Advantages of Digital Technology
- Superior noise immunity in electrically harsh environments
- Enhanced long-term stability and minimal calibration drift
- More accurate temperature compensation for high conductivity solutions
- Simplified installation with reduced wiring complexity
- Real-time diagnostics and status reporting
- Better repeatability and precision at high EC levels
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