E-mail: michael@shboqu.com   |   Expert in Water Quality Measurement and Water Treatment Project

How to choose an online residual chlorine detector

by:BOQU     2023-03-13
Online residual chlorine detector swimming pool water disinfection generally uses chlorine-containing disinfectants (disinfection powder, tablets) to carry out sterilization and disinfection. Now swimming pools are basically dosing by hand. Chlorine, but the concentration of residual chlorine is recommended not to exceed 1.0mg/L. Too high residual chlorine will make swimmers feel uncomfortable, and severe cases will cause poisoning. Therefore, residual chlorine in pool water must be controlled within a certain range. According to the national health supervision department, the residual chlorine in swimming pool water is between 0.3-1.0mg/L (this standard refers to GB37488-2019) is qualified, and if it exceeds this range, it is unqualified. However, the water quality in the swimming season will vary depending on the number of people, weather and other factors. Changes and changes, of course residual chlorine will also change! When the chlorine concentration is too low, it will be adaptable to bacteria and viruses. If the dosage is not increased in time, bacteria and algae will have an opportunity. When the chlorine concentration is too high, it will be useless to swimmers and swimming pools. The online residual chlorine detector is an online intelligent residual chlorine detector produced by our company by introducing foreign technology. It adopts imported components and permeable membrane heads, based on polarographic analysis technology and advanced production technology and surface mount technology. Using this series of advanced analytical techniques ensures the stability, reliability and accuracy of the long-term work of the instrument. It has functions such as Chinese/English menu operation, notepad storage of measurement data, 485 communication, etc. It is widely used in automatic control dosing of circulating water, chlorination control of swimming pools, drinking water treatment plants, drinking water distribution networks, swimming pools, hospital wastewater, water quality treatment projects, etc. to continuously monitor and control the residual chlorine content in aqueous solutions. Main features: ◇New waterproof, dustproof and moistureproof high-quality shell (IP65) technology, surface painting technology, the appearance of the instrument is generous. ◇The product has high precision, high stability, and strong anti-interference ability. ◇Large-screen dot-matrix liquid crystal display, Chinese menu operation. ◇ Simultaneous display of multiple parameters: residual chlorine value, hypochlorous acid value, PH value, temperature, output current, etc. are displayed simultaneously, intuitive and easy to read, and there is a reminder of range overrun. ◇It has the function of restoring factory settings, slope correction function, and automatically recognizes PH standard solution. Technical indicators ◇Measurement range: hypochlorous acid (HOCL): 0-10.00mg/L, residual chlorine: 0-20.00mg/L, PH value: 0-14pH, temperature: 0-60℃ ◇Resolution: 0.001mg/L L, 0.01mg/L, 0.01pH, 0.1°C ◇Accuracy: ±1%FS, ±0.02pH, ±0.3°C ◇Manual/automatic pH compensation function (0-14) and temperature compensation function (0-60°C). ◇Control interface: Two groups of ON/OFF relay contacts, divided into high point and low point alarm signal photoelectric isolation output. ◇4-20mA current output: Two current outputs, photoelectric isolation protection, improve anti-interference ability. ◇485 interface: Optically isolated output, supporting the Internet of Things (partially compatible with the MODBUS protocol). ◇Relay: The hysteresis of the relay can be set arbitrarily, and the load of the relay is 3A220VAC
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