Product Introduction
High Stability Conductivity Sensor for Wastewater Treatment Environment Conductivity Electrode
1. Working Principle
Based on the ionic conductivity characteristics of solutions, divided into two categories:
- Contact electrode type (two-electrode / four-electrode)
- Two-electrode: suitable for pure water, low conductivity water bodies; high concentration is prone to polarization and pollution.
- Four-electrode (mainstream smart type): eliminates polarization effects, anti-pollution, wide range, suitable for sewage, high-salinity seawater, most commonly used in industrial online applications.
- Electromagnetic induction type (electrodeless): coil induction measurement, suitable for strongly corrosive high-salinity wastewater, cannot measure ultrapure water.
Built-in NTC/PT1000 temperature sensor, automatic temperature compensation, automatic conversion to 25℃ standard conductivity, simultaneously outputs EC, TDS, salinity, temperature multi-parameters.
High Stability Conductivity Sensor for Wastewater Treatment Environment Conductivity Electrode
2. Core features
✅ Built-in calculation in probe, no transmitter needed, plug-and-play, reducing system costs ✅ RS485 Modbus RTUas the mainstream interface; some also carry 4 20mA Analog output ✅ Automatic temperature compensation ATC，25℃conversion; factory pre-calibrated, one-key calibration on site ✅ Protection rating mostly IP68, can be installed submerged for long periods ✅ Strong anti-interference, supports long-distance wiring, suitable for IoT and remote monitoring ✅ Power-off saves calibration parameters, parameters will not be lost
High Stability Conductivity Sensor for Wastewater Treatment Environment Conductivity Electrode
3. Technical parameters (industrial four-electrode type)
Table
| Item |
Typical indicators |
| Measurement range |
0~200 mS/cm (can be segmented: pure water μS level, sewage mS level) |
| Accuracy |
±1%~±2%FS |
| Temperature |
0-50℃, automatic temperature compensation |
| Power supply |
DC 9 24V |
| Output |
RS485 Modbus RTU; optional 4-20mA |
| Protection |
IP68, pressure resistance up to 6-10bar |
| Material |
PEEK electrode sheath, resistant to acid and alkali corrosion |
Key selection points:Electrode constant K value：K=0.01 for ultrapure water; K=1 for tap water and surface water; K=10 for sewage and high-salinity wastewater.
High Stability Conductivity Sensor for Wastewater Treatment Environment Conductivity Electrode
4. Main application scenarios
- Environmental monitoring: surface water, rivers, reservoirs, seawater, municipal wastewater online monitoring
- Water treatment: pure water / Ultrapure water, circulating water, reclaimed water reuse, water treatment plants
- Industry: chemical, pharmaceutical, power plant boiler water process water quality monitoring
- Aquaculture: seawater aquaculture salinity, aquaculture water bodies EC Monitoring
- Smart agriculture: hydroponic nutrient solution EC Detection
Main Application Areas
- Wastewater Treatment — Monitor conductivity and TDS in influent and effluent to ensure treatment efficiency and compliance.
- Environmental Monitoring — Measure conductivity and salinity in rivers, lakes, and groundwater to assess water quality.
- Industrial Process Control — Real-time monitoring of conductivity in cooling water, boiler water, and chemical processes to prevent scaling and corrosion.
- Aquaculture — Monitor salinity and conductivity in aquaculture water to maintain optimal conditions for aquatic life.
Keywords：conductivity sensor, intelligent conductivity sensor, digital conductivity sensor, wastewater conductivity sensor, RS485 conductivity sensor, TDS sensor, salinity sensor, water quality sensor
