Resedual Chlorine
Liquid chlorine sensors, often used for measuring chlorine levels in water, primarily utilize amperometric sensors to detect and quantify chlorine. These sensors work by measuring the electrical current produced when chlorine reacts with a sensing electrode, and this current is directly proportional to the chlorine concentration in the liquid.
AIUA2496 Controller is specially designed for water treatment and industrial process control. Used with AILHF24900 & Flow Cell, it can measure the concentration of residual chlorine in water. Its adoption of membrane free constant voltage sensor eliminates the need for membrane and reagent replacement. Furthermore, it is highly sensitive and stable, only requiring simple Cleaning maintenance.
Type of Chlorine Sensor
- Chlorine sensors, especially for residual chlorine monitoring, typically employ an amperometric measurement principle.
- This involves a chemical reaction between chlorine and the sensor’s working electrode, generating a current.
- The sensor’s design includes a working electrode (often made of gold), a reference electrode, and a counter electrode.
- The working electrode is coated with a chlorine-sensitive layer, and the reference electrode provides a stable voltage for the measurement.
- The measured current, which is directly proportional to the chlorine concentration, is then converted to a usable reading.
- Many liquid chlorine sensors utilize a membrane to separate the measured liquid from the sensor’s internal components.
- This membrane is typically gas-permeable, allowing chlorine to diffuse through it and reach the electrode surface.
- This diffusion process is a key aspect of how these sensors work, ensuring the chlorine comes into contact with the electrode for measurement.
- In the case of residual chlorine sensors, dissolved chlorine in the water diffuses through the membrane and reaches the working electrode.
- A voltage is applied, and this causes a reduction reaction where chlorine is reduced to chloride.
- The resulting electrical current is directly proportional to the chlorine concentration in the water.
- Accuracy and Reliability
- Front Key Calibration and Low Maintenance
- Fast Response Time
| Power Supply | 100 ~260 VAC @ 50Hz OR 24VDC | |
| Measuring Range | 0.00 ~20.00 mg/l | |
| Accuracy | +/- 3% F.S | |
| Display | OLED LCD | |
| Output | 2 nos. Relay 3A 1CO | |
| Communication | RS485 Modbus RTU | |
| Analogue output | 4-20mA | |
| Resolution | 0.01 mg/l | |
| IP Rating | IP55 | |
| Enclosure | ABS | |
| Operating Temperature | -10 ~55’C | |
| Size | 96x96x85mm | |
| Panel Cut out | 92×92 mm | |
CE Approved
ISO 9001 : 2025
Drinking Water: Ensuring adequate disinfection and preventing overdosing
Wastewater: Monitoring effluent discharge to ensure compliance with regulations and enable water reuse.
Process Water: Maintaining chlorine levels in industrial processes like cooling towers to prevent damage and optimize treatment.
Food and Beverage: Ensuring hygiene in washing water, protecting membranes in reverse osmosis systems, and monitoring disinfection.
Paper and Pulp: Monitoring chlorine levels in bleaching processes.
Chemical Manufacturing: Controlling chlorination processes.