Product Introduction

The ESN3000 Disinfectant On-line Analyzer operates based on the electrochemical method and measures the disinfectant concentration through the constant potential method. It has advantages such as high precision, fast response, and easy maintenance, and is widely applied in fields such as water treatment, drinking water monitoring, and swimming pool management.

Instrument Features
  • Integrated design, easy to install, simple to maintain, plug and play;
  • Fast response time, capable of quickly and accurately monitoring the changes of water samples;
  • No reagents are required, and there is no secondary pollution;
  • Using the three-electrode constant potential method, only the reference electrode needs to be replaced, reducing the cost of consumables;
  • It can measure residual chlorine/chlorine dioxide/ozone and can be directly switched through the menu;
  • Closed pressure flow path, and the electrodes are not easy to scale;
  • Built-in flow compensation, not affected by flow rate and pressure, providing more accurate measurement;
  • Intelligent water-saving design. While ensuring the performance of the instrument, it greatly reduces water resource waste and achieves green operation;
  • Built-in water shortage detection system, which can feedback the operation status in real time, improving the reliability of monitoring data;
  • Support for chemical dosing control to achieve intelligent dosing.
Typical Applications


On-line monitoring of disinfection processes for tap water, swimming pools, industrial process water, and membrane treatment processes such as reverse osmosis.

On-line monitoring of ozone in the sewage and pure water industries.


Application in Waterworks
Waterworks
Swimming Pool
Swimming Pool
Industrial Process
Industrial Process
Sewage Treatment
Sewage Treatment


Technical Specifications
Display Screen 7-inch screen (resolution 1024*600) Power Supply and Power Consumption 220VAC <10W; 24VDC<300mA
Signal Output RS485*1; 4～20mA output*3 (optional) Relay 1 channel, 5 channels (optional)
Material and Protection Level ABS ; IP65  Body Size and Weight 300*300*170mm (length*width*depth) ; 2kg
Operating Temperature 0~45°C, water sample temperature 0~50°C Measurement Method Temperature: Thermistor method; Residual chlorine/Chlorine dioxide/Ozone: Three-electrode constant potential method ; pH: Glass electrode method
Range/Resolution Temperature: 0~100°C; 0.01°C Comparison Error (Measurement Accuracy) Temperature: ±0.3°C
Residual chlorine/Chlorine dioxide/Ozone: 0~20mg/L; 0.001mg/L Residual chlorine/Chlorine dioxide/Ozone: ±0.02mg/L (when the actual water sample ≤0.1mg/L); < 10% or ±0.05mg/L, take the larger value (when the actual water sample >0.1mg/L).
pH: 0~14pH; 0.01pH pH: ±0.1pH
Repeatability Temperature: ±0.2°C Lower Limit of Measurement Residual chlorine/Chlorine dioxide/Ozone: 0.02mg/L
Residual chlorine/Chlorine dioxide/Ozone: ±5% pH: 0.05pH
pH: ±0.1pH *******