online CODcr automatic analysis detector is a detection instrument currently used in sewage treatment. it can undergo oxidation-reduction reaction inside the mixed solution formed by water sample, potassium dichromate, silver sulfate (as a catalyst to oxidize linear aliphatic compounds more fully) and concentrated sulfuric acid under high temperature and high pressure environment, during which Cr(VI) in the solution is reduced to Cr(III), thus, the color of the mixed solution is changed, and the degree of change of the color of the solution corresponds to the chemical oxygen demand (COD) of the water sample, and the instrument can directly determine the COD value of the water sample through the light signal. Chloride ions in water samples are the main interfering substances, and the interference of chlorine can be eliminated by adding mercury content to complex chloride ions in water samples. Then you know online What are the performance characteristics of CODcr Automatic Analysis Tester ? The following is a brief introduction by yi yun Tian:

performance characteristics of online CODcr automatic analysis detector:

1. select valve components: select reagent sampling timing, flexible and diverse channels, changeable functions, easy maintenance and long life.

2, with printing function, you can connect the printer (optional), print the measured data in time.

3, 7-inch touch screen and simple operation interface can be used to make users easy to learn, operate and maintain.

4. the large data storage capacity realizes the preservation of historical data of not less than 5 years (the measurement interval is 1 time/1h), which greatly meets the needs of customers.

5. automatic liquid leakage alarm function. when reagent leakage occurs, the instrument will automatically alarm and prompt the user to carry out maintenance.

6. The light signal recognition function is used for quantification to ensure high accuracy of quantification.

7, chemical reagent maintenance is simplified and convenient, and the reagent is replaced once a month, which greatly reduces the maintenance workload of users.

8, can achieve accurate measurement of COD containing chloride ions 35000mg/L.

9, U disk one-click upgrade, software update easier.

In summary, it is some of the performance characteristics of the online CODcr automatic analysis detector.It is precisely because of its various advantages that the online CODcr automatic analysis detector can be widely used in sewage treatment plants, washing plants, chemical sewage discharge outlets, industrial production process water, industrial and municipal sewage treatment and other fields.