Online Chlorine Dioxide Analyzer

ERUN-SZ4-A-K4

Widely applicable to continuous real-time monitoring of water chlorine dioxide in fields such as water treatment, hydrological monitoring, wastewater treatment, swimming pools, industrial control, and biology.

Introduction Parameters Features

Introduction

Brand: ERUN

Name: Water Quality Chlorine Dioxide Online Analyzer

Model: ERUN-SZ4-A-K4

Parameter: Chlorine Dioxide

The ERUN-SZ4-A-K4 online chlorine dioxide analyzer, independently developed by ERUN Environmental Protection, utilizes a coated digital disinfectant sensor with a three-electrode measurement architecture using a high-purity gold electrode as the working electrode. A built-in high-precision potentiostat ensures stable potential. Through redox reactions occurring on the electrode surface, it accurately measures the concentration of disinfectants such as hypochlorous acid – the generated current strictly follows Faraday's law, achieving high-precision online monitoring without reagents and zero pollution.

Parameters

ERUN-SZ4-A-K4 Online Chlorine Dioxide Water Quality Analyzer Technical Specifications:

Measurement parameters	Chlorine dioxide
Electrode	Film-coated gold electrode
Measurement range	0-5/20mg/L
Resolution	0.001mg/L
Accuracy	±3% (DPD comparison error ±10% or ±0.05 mg/L, whichever is greater)
Repeatability	±3%
Detection limit	0.030 mg/L or lower
Response time	T90≤90s
Measurement method	Reagent-free, electrochemical, three-electrode amperometric detection system
Calibration Method	Single-point calibration, two-point calibration
Temperature measurement range	-5-60℃
Temperature resolution	0.1℃
Temperature accuracy	±0.4℃
Pressure range	<0.1MPa
Work pressure	DC9-28V
Peak power	0.5W
Digital output	RS485 MODBUS
Analog output	4-20mA (optional)
Operating temperature	-5℃ to 45℃ (non-freezing)
Signal line length	Direct output 5-meter signal cable
Electrical connection	Pin-type
Installation method	Circulating type
Protection level	IP68

Features

Water Quality Chlorine Dioxide Online Analyzer ERUN-SZ4-A-K4 Sensor Features:

Reagent-free electrochemical sensing: The entire process requires zero chemical reagents and produces no byproducts, enabling green monitoring.

Innovative coating process: A physical barrier layer prevents contamination, ensuring long-term stability of the working electrode and eliminating the risk of failure.

Three-electrode precision architecture: near-zero zero-point drift, 30%+ increase in sensitivity, and industry-leading measurement accuracy.

High-precision sampling system: Optimized signal processing algorithms ensure excellent linearity across the entire range, resulting in reliable and unbiased data.