MDS-EC90B 4-Electrode Conductivity Digital Sensor

MDS-EC90B 4-Electrode Conductivity & Salinity Digital Sensor

The MDS-EC90B Four-Electrode Conductivity-Salinity Digital Sensor utilizes an advanced 4-electrode measurement principle, separating the excitation electrodes from the sampling electrodes. This cutting-edge design eliminates the electrode polarization effects common in traditional two-electrode sensors, ensuring highly accurate, stable, and repeatable water quality data.

Equipped with a standard RS485 interface and MODBUS-RTU protocol, this digital conductivity sensor seamlessly integrates into smart water industrial control systems and IoT-based water quality monitoring networks. It is the ideal, reliable tool for aquaculture, wastewater treatment, industrial process control, and scientific research.

Technical Highlights & Features

● Anti-Polarization 4-Electrode Design: 

By separating the excitation and sampling channels, it delivers precise measurements even in high-concentration or heavily polluted environments where traditional sensors fail.

● Smart Wide-Range Auto-Adaptation: 

Continuously monitors solution concentrations across different water qualities (from freshwater to seawater) with auto-ranging capabilities—no manual range switching required.

● Isolated Power & Strong Anti-Interference: 

Built-in isolated power supply design significantly minimizes on-site electrical interference, ensuring stable, long-term remote data transmission.

● Anti-Fouling Planar Structure: 

Constructed with premium corrosion-resistant materials, the flat-surface electrode design prevents contaminant adhesion and biofouling, dramatically reducing maintenance frequency and simplifying manual cleaning.

● Automatic Temperature Compensation (ATC): 

Integrated temperature sensor automatically corrects readings based on real-time water temperature fluctuations, guaranteeing accuracy under varying thermal conditions.

● Seamless Industrial IoT Integration: 

Featuring a digital electrode architecture, standard RS485 connection, and MODBUS-RTU protocol, it supports remote parameter configuration, quick calibration, and plug-and-play system deployment.

Key Applications & Industries

The versatile and rugged design of the MDS-EC90B sensor makes it highly sought after for:

● Aquaculture & Marine Farming: Continuous salinity and conductivity monitoring for both freshwater and marine fish/shrimp ponds.

● Environmental Water Testing: Surface water assessment, river monitoring, and wastewater treatment plant effluent control.

● Industrial Process Control: Chemical dosing verification, cooling tower water management, and equipment integration.

● Smart Water IoT Solutions: Easily couples with wireless RTUs and cloud platforms for remote, unmanned environmental monitoring.

Technical Specifications  

MDS-EC90B  4-Electrode EC Salinity Digital Sensor.pdf