Membrane Chlorine Sensor
HydroMetric membrane chlorine sensor is a digital amperometric sensor for residual chlorine, total residual chlorine or chlorine dioxide monitoring. Its permeable-membrane design reduces pH dependence and helps resist interference from surfactants, supporting stable operation across drinking-water, pool, medical wastewater, industrial wastewater and process-water applications.
Technical Specifications
| Measurement principle | Membrane amperometric digital electrode |
|---|---|
| Available measuring ranges | 0–2 mg/L, 0–20 mg/L, or 0.5–200 mg/L depending on configuration |
| pH operating range | 4–9 |
| Conductivity range | 10 µS/cm to 50 mS/cm, including seawater applications |
| Recommended flow in flow cell | 250–500 mL/min |
| Slope drift | Approximately -1% per month |
| Response time | T90 approximately 2 minutes |
| Zero-point calibration | Not required |
| Slope calibration | DPD-1 reference method at the measurement system |
| Temperature compensation | Integrated automatic compensation |
| Materials | PVC-U, stainless steel and microporous hydrophilic membrane |
| Power supply | 85–500 VAC or 9–36 VDC via compatible transmitter/controller configuration |
| Outputs | 3 × 4–20 mA |
| Relays | 3 configurable relays |
| Communication | Modbus RS485 |
| Sensor dimensions | Ø25 × 205 mm |
| Transmitter dimensions | 145 × 125 × 162 mm |
| Cable length | 5 m |
Applications
Suitable for drinking water, municipal tap water, swimming pools, aquaculture, seawater, medical wastewater, dosing systems, circulating water, cooling water and industrial wastewater treatment.
Selection & Integration
Confirm the target disinfectant species, required range, sample pH, conductivity, expected flow rate, water chemistry, mounting arrangement and control-system interfaces before quotation. Flow-cell operation is recommended where controlled sample flow is required.
Request a Quote
Send the target chlorine species, range, pH, conductivity, flow conditions and integration requirements to sales@waterqualityanalyzer.com for configuration support and quotation.
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