Conductivity / TDS / Salinity
IDC Integrated Digital Conductivity Sensor
Conductivity / TDS / Salinity
Integrated digital conductivity sensor with TDS and salinity conversion — digital Modbus output for process and water quality monitoring.
- Conductivity, TDS and salinity in one digital probe
- RS485 Modbus RTU for direct system integration
- Automatic temperature compensation
- Wide range — from pure water to concentrated brines
Overview
A conductivity sensor measures the ability of water to conduct electrical current, which correlates directly with dissolved ion concentration — the basis for TDS, salinity and concentration monitoring.
The IDC Integrated Digital Conductivity Sensor adopts a four-electrode graphite configuration. An AC signal is applied to two electrodes to avoid polarization interference, while the other two electrodes are used for precise conductivity measurement. Compared to traditional two-electrode technology, it offers greater measurement stability and improved resistance to fouling, making it ideal for long-term online monitoring in complex water environments.
Typical Applications
Features
- Multi-frequency measurement and digital filtering ensure high accuracy
- Electrically isolated measurement circuitry eliminates interference with other sensors
- Four-electrode graphite sensor for high stability and long service life
- Automatic range switching for wide measurement coverage
Specifications
| Parameter | Specification |
|---|---|
| Measurement Method | Four-electrode method |
| Measuring Range | 0–200 mS/cm |
| Accuracy | ±1% |
| Resolution | 0.1 µS/cm to 0.1 mS/cm |
| Response Time | ≤ 30 s |
| Temperature Range | 0–50 °C (non-freezing) |
| Protection Rating | IP68 |
| Operating Pressure | 0–4 bar |
| Communication Interface | RS485 interface, Modbus RTU protocol |
| Power Supply | 9–28 VDC |
| Power Consumption | 0.6 W |
| Dimensions | Φ40.5 × 258.5 mm |
| Material | 316L stainless steel |
Frequently Asked Questions
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