Q-CL501 Portable Colorimeter For Free Chlorine, Chlorine Dioxide ( 5-Para)

Q-CL501 Portable Colorimeter For Free Chlorine, Chlorine Dioxide ( 5-Para),
Residual Chlorine，Portable Chlorine Meter，Drinking Water Measurement，Drinking Water Analyzer，Colorimeter Spectrophotometer，Portable Colorimeter，Chlorine Test Kit，Free Chlorine Tester，Chlorine Analyser,

Application:

Designed for the testing of free chlorine, total chlorine, combined chlorine, chlorine dioxide and chlorite in drinking water and waste water. It can be used for fast test and laboratory standard test of water quality in many fields such as city water supply, food industry, pharmacy and so on.

Features:

※Time-saving and convenient testing

First of all, It can quickly and accurately detect residual chlorine, compound chlorine, total chlorine, free chlorine dioxide and chlorite in about 10 minutes and it is the only analyzer that can quickly detect chlorite in the market.

Secondly, the three-step operation of zeroing the sample, adding appropriate reagents and testing makes water analysis a technology intensive.

※Easy and fast configuration

Quantitative packaging-specific reagents, the combination of well-chosen accessories, outdoor detection is no longer a tedious work.

※Simple and light design

150g net weight and simple keypad with five buttons help relieve your working burden during testing.

※Efficient automatic calculation

With the help of default programmed module and rigorous standard formula, the time needed for data transformation reduces to 1-2s.

※Stable and accurate testing result

EPA based automation technique and calibrated standard curve improve the stability and repeatability.Chlorine is one of the indicators that water quality testing often needs to determine.

Recently, the editor received feedback from users: When using the DPD method to measure Chlorine, it clearly smelled a heavier smell, but the test did not show color. What is the situation? (Note: The user's disinfectant margin requirements are relatively high)

Regarding this phenomenon, let’s analyze with you today!

First of all, the most widely used method for detecting chlorine is DPD spectrophotometry. According to EPA: The residual chlorine range of the DPD method is generally 0.01-5.00 mg/L.

Secondly, hypochlorous acid, the main component of free chlorine in water, has oxidizing and bleaching properties.Use the DPD method to measure residual chlorine in water: When the chlorine content in the water sample is too high, after DPD is completely oxidized and developed, more chlorine will show the bleaching property, and the color will be bleached, so it will appear This phenomenon of the problem at the beginning of the article.

In view of this situation, the following two solutions are recommended.

1. When using the DPD method to detect chlorine, you can dilute the water sample with pure water so that the chlorine is within the range of 0.01-5.00 mg/L, and then perform the detection.

2. You can directly select equipment that detects high concentration of residual chlorine for detection.