Measurement principle
Constant voltage electrodes are used to measure residual chlorine, chlorine dioxide and ozone in water bodies. The constant voltage measurement method maintains a stable potential at the measurement end of the electrode. Different components being measured generate different current intensities at this potential. It consists of two platinum electrodes and one reference electrode to form a microcurrent measurement system. The residual chlorine, chlorine dioxide and ozone in the water sample flowing through the measuring electrode will be consumed. Therefore, during the measurement, it is necessary to keep the water sample continuously flowing through the measuring electrode.
Technical parameters
Range: 0-20mg/l
Electrodes: Two platinum rings
Reference electrode: Gel annular contact
Main material: Glass
Work pressure: <10bar
Water sample flow rate: 10-30 liters per hour
Operating temperature: 0-50℃
Key points for use:

Ensure the cleanliness of the two measuring rings of the electrode. During use, the measuring electrodes of the electrode may accumulate dirt in the water. Clean and maintain them in a timely manner.
2. A reliable quality flow cell is adopted to provide a stable water sample for measurement for the electrode
3. The residual chlorine electrode is made of glass. Please pay attention to safety during use and daily maintenance. Any damage (breakage) caused by human factors is not covered by the warranty and cannot be repaired.
4. If dirt is found adhering to the sensor, the platinum ring at the front end can be rinsed with water or gently wiped with soft fine paper. If the dirt still cannot be removed, you can soak it in 3% dilute hydrochloric acid for a few seconds and then wipe it with a soft fine paper.
5. The ultrasonic self-cleaning function flow cell SC7231 or SC7233 can be optionally equipped to solve the daily cleaning and maintenance problems, truly achieving unattended operation and maintenance-free online residual chlorine detector. As shown in the following figure, the effect of the ultrasonic automatic cleaning function flow cell for up to one year is still as good as new.