Product Introduction

The ESN3000 multi-parameter water quality on-line analyzer is a device used for real-time monitoring of multiple key parameters in water bodies, providing continuous and accurate data, helping users to promptly understand the water quality situation and take corresponding measures. It is applied in fields such as environmental monitoring, water resources management, and health supervision.

Measured Parameters

It can measure one or multiple parameters, and up to 8 parameters can be measured simultaneously.

Temperature Chlorine Dioxide/Residual Chlorine/Ozone pH Turbidity TDS Conductivity Oxidation-Reduction Potential Dissolved Oxygen Color COD
Instrument Features
  • Integrated design, easy to install, plug and play;
  • It can monitor and display 8 parameters simultaneously, and support the access of external sensors;
  • Fast response time, capable of quickly and accurately monitoring the changes of water samples;
  • For residual chlorine measurement, the three-electrode constant potential method is used, and 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;
  • No reagents are required, and there is no secondary pollution;
  • Closed pressure flow path, not easy to scale, with automatic sewage discharge, requiring little maintenance for a long time;
  • Built-in flow compensation, not affected by flow rate and pressure, providing more accurate measurement;
  • Built-in Internet of Things module (optional), and the data can be accessed to the user platform;
  • Support for real-time viewing of instrument monitoring data through the mobile APP;
  • Design in a modular way, and the protocol can be customized according to user requirements;
  • Intelligent water-saving design, which can greatly reduce water resource waste while ensuring the performance of the instrument, achieving green operation;
  • Built-in water shortage detection system, which can feedback the operation status in real time, improving the reliability of monitoring data;
  • Users can remotely control the instrument through the platform and mobile APP, reducing the cost of manual operation and maintenance;
  • Support for chemical dosing control, realizing intelligent dosing.

Water quality monitoring for rural drinking water, urban waterworks, the end of water supply pipelines, secondary water supply pump houses; water quality monitoring for swimming pool water, industrial process water, etc.

Typical Applications

Water quality monitoring for rural drinking water, urban waterworks, the end of water supply pipelines, secondary water supply pump houses; water quality monitoring for swimming pool water, industrial process water, etc.

Sewage Treatment
Waterworks
Surface Water Monitoring
Direct Drinking Water
Aquaculture Scenery
Swimming Pool
Industrial Process
Industrial Process
Technical Specifications
Parameter Index 1 Parameter Index 2
Display Screen 7-inch screen (resolution 1024*600) Power Supply and Power Consumption 220VAC < 10W, 24VDC <300mA
Signal Output RS485*1, 4-20mA output*5 (optional) Wireless Module 2G/3G/4G/5G full network communication
Relay 1 channel, 5 channels (optional) Body Material ABS
Operating Temperature 0 - 45°C Protection Level IP65 (for indoor use only)
Body Size 300*300*170mm (length*width*depth) Weight 3kg
Measurement Method - Temperature Thermal Dissipation Resistance Method Range/Resolution - Temperature 0 ~ 100°C; 0.01°C
Measurement Method - Residual Chlorine/Chlorine Dioxide/Ozone Three-Electrode Constant Potential Method Range/Resolution - Residual Chlorine/Chlorine Dioxide/Ozone 0 ~ 20mg/L; 0.001mg
Measurement Method - pH Glass Electrode Method Range/Resolution - pH 0 ~ 14pH; 0.01pH
Measurement Method - Turbidity 90° Light Scattering Method Range/Resolution - Turbidity 0 ~ 100NTU; 0.0001NTU
Measurement Method - Conductivity Graphite Electrode Method Range/Resolution - Conductivity 0 ~ 20000us/cm; 0.01us/cm
Measurement Method - ORP Electrochemical Method Range/Resolution - ORP -2000 ~ +2000mV; 1mV
Measurement Method - Dissolved Oxygen Fluorescence Method Range/Resolution - Dissolved Oxygen 0 ~ 20mg/L; 0.01mg/L
Measurement Method - Color Transmitted Light Method Range/Resolution - Color 0 ~ 100 degrees; 0.1 degree
Comparison Error (Measurement Accuracy) - Temperature ±0.3°C Repeatability - Temperature ±0.2°C
Comparison Error (Measurement Accuracy) - 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) Repeatability - Residual Chlorine/Chlorine Dioxide/Ozone ± 5%
Comparison Error (Measurement Accuracy) - pH ±0.1pH Repeatability - pH ±0.1pH
Comparison Error (Measurement Accuracy) - Turbidity < ±5% or ±0.1NTU, take the larger value Repeatability - Turbidity ±3% or ±0.1NTU, take the larger value
Comparison Error (Measurement Accuracy) - Conductivity ±1% Repeatability - Conductivity ±1%
Comparison Error (Measurement Accuracy) - ORP ±20mV Repeatability - ORP ±10mV
Comparison Error (Measurement Accuracy) - Dissolved Oxygen ±0.3mg/L Repeatability - Dissolved Oxygen ±0.3mg/L
Comparison Error (Measurement Accuracy) - Color ±5% Repeatability - Color ±5%
Lower Limit of Measurement - Residual Chlorine/Chlorine Dioxide/Ozone 0.02mg/L Lower Limit of Measurement - Conductivity 0.1us/cm
Lower Limit of Measurement - pH 0.05pH