Water Quality Sensor

Water Residual Chlorine sensor – Residual Chlorine Meter

Water Residual Chlorine sensor – Residual Chlorine Meter

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Residual chlorine sensor is an industrial water quality sensor used to measure residual chlorine content in solution. Chlorine electrodes are made of high-purity platinum, which provides a high level of protection and can work well even in harsh environments. This residual chlorine sensor has two signal outputs, RS485 and analog. It is widely used for determination of chlorine in natural water, surface water, groundwater and aquaculture.

Residual Chlorine sensor

Residual Chlorine Sensor Features:

(1)High-sensitivity electrode, high temperature and high pressure resistance, the probe uses high-performance Residual Chlorine electrode, high temperature and high pressure resistance, strong adaptability, long life, simple maintenance.

(2)Large 2.4-inch LCD screen, the value is clear at a glance, and the value is displayed in real-time high-definition.

(3)High precision and stable signal, allowing you to obtain every data at any time.

(4)There is a password to prevent data leakage.

(5)Multiple adaptation fields, one machine with multiple configurations, intelligent adaptation.

(6)Intelligent temperature compensation design, intelligent temperature compensation, because one-key adjustable, suitable for a variety of measurement occasions.



DC power supply: 12-24V DC

Power consumption: ≤0.15W (12V DC, 25°C)

Measurement accuracy: 5.0%

Range: 0-2/0-8/0-20 mg/L

Response time: 30s

Output signal: RS485/4-20mA/0-10V

Operating temperature: 5~50°C

Medium PH range: 4~9PH

View – Residual Chlorine sensor

This Residual Chlorine sensor is a sensor independently developed by us to measure the chloride ion content in water. The chlorine electrode adopts the advanced non-membrane constant voltage measurement principle, does not need to replace the diaphragm frequently, does not consume reagents, because and has stable working performance.

Residual Chlorine Meter


Why measure chloride ions in water?

Because tap water is often sterilized with CL2, there will be a lot of CL- in the water, and it is harmful to the human body, and CL2 is a toxic substance, so the water we usually drink needs to be stored for a period of time, because so that the CL- in the water is released to the In the air, this is good for the human body.

In what form does residual chlorine exist in water?

There are three forms of residual chlorine in water: total residual chlorine, free residual chlorine and combined residual chlorine.

Combined residual chlorine, also known as combined residual chlorine, refers to the compound of chlorine and ammonia in water.

Free residual chlorine, also known as free residual chlorine, refers to OC1+, HOCl, Cl2, etc. in water, which has fast sterilization speed and strong sterilization power, but disappears quickly.

Total residual chlorine is the sum of combined residual chlorine and free residual chlorine.

How to calibrate residual chlorine meter?

1. Zero calibration:

Place the chlorine probe in the air and perform zero point after the value is stable.

2. Slope calibration:

Place the chlorine probe in the flow cell flowing with the residual chlorine standard solution, and perform slope calibration after the value is stable. because It is recommended to use 1-2 mg/L HClO standard solution. Regarding the preparation and determination of standard solutions, because please refer to the determination of residual chlorine in the national standard.

Note: The chlorine meter has been calibrated before leaving the factory. Because the preparation of the standard solution requires a lot of personnel, non-professionals may not be able to do this work. because Only when the value is determined to be inaccurate, it is recommended that the user calibrates by himself.

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