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TracWater Water Quality Sensors

Water Quality Sensors

Specifications 

  • Name: TracWater Residual Chlorine Sensor

  • Model: TW-4749A

  • Measuring principle: Constant Voltage Method

  • Range: 0-20mg/L

  • Accuracy: ±0.02mg/L

  • Size: Φ13mm*120mm 

Note: Please contact TracWater to get a copy of the full sensor specifications.

TracWater Free Chlorine Sensor

Model number:

TW-4749A

Product description:

TracWater TW-4749A Free Chlorine Sensor adopts a negative pulse of specific voltage amplitude applied between the polarised electrode and the reference electrode to selectively select free chlorine to participate in the reaction, so that it can undergo an electrochemical reaction at the cathode of the electrode, thus forming a current signal proportional to the concentration of free chlorine.

Overview

TracWater’s TW-4749A Free Chlorine Sensor employs a specific negative pulse voltage applied between the polarised and reference electrodes to selectively target free chlorine for reaction. This enables an electrochemical reaction at the electrode's cathode, generating a current signal that is directly proportional to the concentration of free chlorine. By collecting and analysing this current signal, the sensor accurately determines free chlorine levels. It offers strong selectivity, minimal maintenance requirements, a long electrode lifespan, and ensures high reliability without the need for part replacements.

Features

  • RS-485 transmission interface with MODBUS-RTU communication protocol, supporting dual-channel communication.

  • Power supply and output isolation design to ensure electrical safety.

  • Built-in protection circuit to enhance anti-interference capability and adapt to complex environments.

  • The communication protocol is simple and user-friendly, providing additional electrode diagnostic information for enhanced intelligence.

  • Includes built-in calibration parameters for simplified on-site use and secondary calibration processes.

Applications

  • Drinking Water Treatment Plant: Continuously monitor the residual chlorine content in treated water and throughout the distribution network to ensure water quality safety.  

  • Swimming Pools: Precisely control the residual chlorine concentration in pool water to maintain optimal water quality and hygiene standards.  

  • Food Processing Industry: Rigorously monitor the residual chlorine levels in process water and cleaning water to safeguard food safety and compliance with health regulations.  

  • Industrial Water: Regularly measure the residual chlorine content in cooling water and boiler feedwater to ensure efficient operation and prevent system corrosion.

Disclaimer: Images of sensors on this website are for illustration purposes only and do not represent the actual product. Please contact us for a copy of the specifications for the sensor you require.

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