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

Precautions for operation of residual chlorine detector

by:BOQU     2023-04-17
The portable residual chlorine detector is designed to be portable, small in size, and has accurate measurement results. And the operation method is also very simple. Only a simple process is required to obtain the water quality residual chlorine data. However, in practical applications, the water quality factors change frequently. In order to ensure the accuracy of the measurement, some operational precautions need to be paid attention to. The following is Let me introduce to you. Precautions for the operation of the residual chlorine detector 1. Before using the residual chlorine detector to measure turbid liquids, it needs to be filtered by a device before detection. 2. The chlorine ion we often say does not belong to the category of residual chlorine measurement. The measurement of residual chlorine includes the measurement of free chlorine and combined chlorine content. 3. After the test is completed, the contrast color dish needs to be cleaned and stored in a dry place. 4. The residual chlorine detector cannot measure colored reagents. 5. When measuring free chlorine, the pH of the water should be within the range of 6.2---6.5. Adding DPD reagent can directly produce a reaction and generate a red compound. If the pH value is not in this range, it needs to be adjusted with buffer reagent or dilute acid or dilute alkali. 6. The principle of the total chlorine determination method: when the pH of the water is in the range of 6.2----6.5, adding excess potassium iodide and DPD can directly react to generate a red compound. If the pH value is not in this range, it needs to be adjusted with buffer reagent or dilute acid or dilute alkali. The method of using the residual chlorine detector is relatively simple, but some operational matters need to be paid attention to to ensure accurate detection data without damaging the instrument. And this is also one of the main factors that can ensure that the residual chlorine detector can reach the service life. No matter when we use any testing instrument, we not only need to adopt the correct method, but also pay attention to the operation precautions in the process.
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