Supmea Online Conductivity and TDS Controller
The Supmea Conductivity TDS Controller delivers continuous electrolytic water monitoring, high-accuracy cell constant scaling, and isolated 4-20mA outputs engineered for reverse osmosis skids and boiler feedwater systems.
Description
The Supmea Conductivity TDS Controller delivers dependable industrial performance, precision process control, and high metrological reliability engineered specifically for industrial automation, electrical marshaling panels, process control skids, and continuous plant monitoring.
Industrial Precision with the Supmea Conductivity TDS Controller
Engineered for mission-critical installations, the Supmea Conductivity TDS Controller provides high operating reliability, compliance with international engineering standards, and robust signal integrity across challenging factory environments. Designed to eliminate operational downtime and minimize maintenance overhead, the instrument integrates seamlessly into modern supervisory systems and distributed plant architectures.
The system incorporates industrial-grade metallurgy, comprehensive electronic safeguards, and vibration-resistant mechanical connections to ensure uninterrupted performance across diverse operating conditions. Field commissioning and diagnostics are streamlined through intuitive physical interfaces, standardized mounting architectures, and universal telemetry connectivity.
Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Measuring Range | Conductivity: 0.05 µS/cm to 200 mS/cm; TDS: 0.00 to 100,000 ppm |
| Electrode Constant Support | Selectable cell constants: K=0.01, K=0.1, K=1.0, and K=10.0 |
| Measurement Accuracy | ±1.0% of Full Scale across calibrated span |
| Temperature Compensation | Pt1000 / NTC30k automatic compensation (0.0 to 100.0 °C) |
| Analog Outputs | Isolated 4–20 mA DC current output (maximum 500 Ω load) |
| Digital Telemetry | RS485 half-duplex communication via Modbus RTU |
| Alarm Relays | 2 × high/low process limit relays (rated 3A at 250V AC) |
| Enclosure Standards | Compact 96 × 96 mm DIN panel mount with IP65 front face |
Industrial Applications and Process Integration
The Supmea Conductivity TDS Controller is widely deployed across primary utility networks, heavy industrial complexes, and civil infrastructure, including:
- Demineralised water loops and reverse osmosis (RO) membrane permeate monitoring.
- Industrial steam boiler feedwater and cooling tower total dissolved solids blowdown.
- Pharmaceutical purified water storage distribution loops.
- Semiconductor rinse water and clean-in-place (CIP) concentration auditing.
Frequently Asked Questions
Which cell constant is required for pure water applications?
For pure water and RO permeate (under 20 µS/cm), use a K=0.01 or K=0.1 cell constant. For standard industrial water, use K=1.0; for high-salinity solutions, use K=10.0.
Can the controller display resistivity values?
Yes, the controller firmware allows switching the primary display between electrical conductivity (µS/cm, mS/cm), TDS (ppm, mg/L), and resistivity (MΩ·cm).
How often does the conductivity probe require calibration?
Because conductivity electrodes have no chemical electrolyte to deplete, calibration using standard KCl reference solutions is typically conducted every 6 to 12 months.
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