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Maintenance of online residual chlorine detector

by:BOQU     2023-04-02
The online residual chlorine detector adopts a VFD plasma display screen superior to that of an LCD screen, high brightness, adjustable and long life, with four types of recorders, data curves, historical measurement data can be saved for 5 years, intelligent single-chip microcomputer, software menu in Chinese. It can be widely used in the continuous monitoring of residual chlorine and pH value of various water quality in electric power, waterworks, hospital and other industries. It can measure free chlorine, pH value and temperature at the same time. The online residual chlorine detector is composed of a sensor and a secondary meter. The residual chlorine sensor contains two measuring electrodes, a hypochlorous acid HOCL electrode and a temperature electrode. The HOCL electrode belongs to the Clark type current sensor, which consists of three small electrochemical electrodes, one working electrode (WE), one counter electrode (CE) and one reference electrode (RE). The method of measuring the concentration of hypochlorous acid (HOCl) in water is based on measuring the current change of the working electrode due to the change of the concentration of hypochlorous acid. The sensor processes this change signal and converts it into a voltage signal for transmission. The temperature electrode is a standard silicon sensor (KTY13-5INFINEON) mounted on the probe adjacent to the integrated HOCL electrode. It also integrates the measured temperature signal into the sensor circuit, and the sensor processes the change signal and converts it into a voltage signal for transmission. Maintenance of online residual chlorine detector: 1. The secondary meter generally does not need daily maintenance. When there is an obvious fault, please do not open it to repair it yourself, and contact us as soon as possible! 2. After turning on the power, the instrument should display. If there is no display or the display is abnormal, turn off the power immediately and check whether the power is normal. 3. The cable connector must be kept clean and free from moisture or water, otherwise the measurement will be inaccurate. 4. The electrode should be cleaned frequently to ensure that it is not contaminated. 5. Calibrate the electrodes at regular intervals. 6. During water stoppage, make sure that the electrode is soaked in the liquid to be tested, otherwise its life will be shortened. 7. The use of the online residual chlorine meter depends largely on the maintenance of the electrode.
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