Product Introduction

The ESN3000 Low-range Turbidity Online Analyzer adopts an integrated design, uses 90° light scattering technology, and is equipped with a closed pressurized flow cell. It features high sensitivity and high-precision measurement.

Instrument Features
  • Integrated design, easy to install, plug and play;
  • Fast response time, capable of quickly and accurately monitoring changes in water samples;
  • Good reproducibility, unaffected by flow rate and pressure
  • High sensitivity, low lower detection limit, able to accurately measure turbidity below 0.1NTU
  • Closed pressurized flow path, not prone to scaling, good defoaming effect, with automatic sewage discharge, requiring little maintenance for a long time
  • Intelligent water-saving design. While ensuring performance, the instrument greatly reduces water resource waste and enables green operation
Typical Applications


Turbidity monitoring of direct drinking water systems;

Turbidity monitoring of water before filtration, after filtration, sedimentation and effluent water in waterworks;

Water quality monitoring in industrial processes, circulating cooling water, effluent of activated carbon filters, membrane filtered water, etc.


Application Scenario in Waterworks
Turbidity Monitoring Application in Waterworks
Application Scenario in Municipal Pipeline Network
Water Quality Monitoring in Municipal Pipeline Network
Application Scenario of Industrial Equipment
Monitoring of Industrial Circulating Water
Application Scenario of Industrial Equipment
Monitoring of Membrane Filtration System


Technical Specifications
Display 7-inch screen (resolution 1024×600) Power Supply & Consumption 220VAC<10W; 24VDC<300mA
Signal Output RS485*1; 4 - 20mA output*1 Relay Slightly
Construction Material & Protection Class ABS; IP65  Dimensions & Weight 300*300*170mm (L*W*D); 2kg
Operating Temperature 0 - 45°C, water sample temperature 0 - 50°C Measurement Method 90° light scattering method
Range/Resolution 0 - 10NTU; 0.001NTU Comparison Error (Measurement Accuracy) < ±5% or ±0.1NTU, whichever is larger
Repeatability ±3% or ±0.1NTU, whichever is larger Lower Detection Limit 0.02NTU