达州Laminated Digital Disinfectant Sensor

The coated digital disinfectant sensor is a self-developed, proprietary three-electrode constant-potential current measurement sensor created by our company. It can be used to measure the concentrations of disinfectants such as residual chlorine, chlorine dioxide, ozone, and total chlorine. This sensor is primarily designed for applications including municipal tap water at the plant outlet, distribution networks, secondary water supply systems, terminal points, and swimming pools. The electrodes feature a built-in ARM processor and a highly efficient filtering algorithm, effectively eliminating noise interference. Additionally, the sensor comes equipped with an RS-485 interface, making it easy to integrate into computer-based and networked monitoring systems.

Category:

达州Sensor (Electrode)

Product Description

User Manual

I. Product Overview
The coated digital disinfectant sensor is a self-developed, proprietary three-electrode constant-potential current measurement sensor created by our company. It can be used to measure the concentrations of disinfectants such as residual chlorine, chlorine dioxide, ozone, and total chlorine. This sensor is primarily designed for applications including tap water from treatment plants, distribution networks, secondary water supply systems, terminal points, and swimming pools. Equipped with a built-in ARM processor and a highly efficient filtering algorithm, the sensor effectively minimizes noise interference. Additionally, it features an RS-485 interface, making it easy to integrate into computer-based and networked monitoring systems.

II. Measurement Principle
The film-coated digital disinfectant sensor features a three-electrode measurement system with a high-purity gold electrode serving as the working electrode. The electrode is equipped with a built-in high-precision potentiostat, ensuring stable control of the working electrode potential. When disinfectant components such as hypochlorous acid come into contact with the working electrode, redox reactions occur, generating a current that follows Faraday's law—thus enabling the accurate determination of the disinfectant concentration.

III. Product Features
1. Electrochemical sensors require no reagent consumption and produce zero pollutant emissions;
2. The laminated design ensures the working electrode is less likely to become contaminated and fail;
3. The three-electrode design offers stable zero point and high sensitivity;
4. The built-in high-precision sampling circuit ensures excellent sensor linearity;
5. The sensor provides accurate comparisons with the DPD measurement method.

4. Technical Specifications

System	Power Supply	DC 9-2 8 V
	Power	0.5W
	Measurement parameters	Residual chlorine, chlorine dioxide, ozone, total chlorine
	Communication Interface	RS485 + 4-20mA
	Electrode Material	Gold
	Water-like flow rate	> 400mL/ min , and the flow rate must remain stable.
	Design Life	> 18 Months
	Operating Temperature	-5 ~ 45℃
	Withstanding pressure	< 0.1 MPa
Disinfectants (residual chlorine/chlorine dioxide/ozone/total chlorine)	Measurement Method	Reagent-free, electrochemical, three-electrode amperometric measurement system
	Measurement range	0-5 / 20mg/ L
	Resolution	0.001mg/ L
	Detection Limit	0.030mg/ L Or lower
	Accuracy	± 3% (DPD) Comparison error ± 10% Or ± 0.05 mg / L Take the larger value )
	Repetitiveness	± 3%
	Response Time (T90)	≤ 90 Second
	Calibration Method	Single-point calibration, two-point calibration
	Sample pH Scope	4 - 9
Temperature	Measurement Method	Thermistor Method
	Measurement range	-5 ~ 60 °C
	Resolution	0.1℃
	Accuracy	± 0.4℃
	Repetitiveness	0.2℃
	Response Time (T90)	≤ 25 Second
	Calibration Method	Single-point calibration