The use and function of COD analyzer in the laboratory

The standard method of COD analyzer is the reflux digestion titration method, which has a long digestion time, high energy consumption, high reagent cost, low efficiency, and often troubles the actual operator. The instrument uses a special catalyst and oxidant. After adding the special oxidant and catalyst, the water sample is heated and digested. The Cr6+ in the oxidant is partially reduced to Cr3+. The reduced Cr3+ content is determined by colorimetry. Regression calculation is used to convert the COD( cr) to the actual concentration. The eighth-generation is a COD measuring instrument with both high and low ranges specially developed according to the water quality of our country and the requirements of national laws and regulations.

The use of COD analyzer: in the laboratory, in the field, quickly and accurately measure the chemical oxygen demand of the sewage. It is the necessary experimental equipment for environmental monitoring stations, environmental engineering and technical personnel, and enterprise laboratories.

COD measuring instrument function:

1. Accurate determination of COD, ammonia nitrogen, total phosphorus, total nitrogen, turbidity, etc.

2. The instrument comes with 20 standard curves, which can be modified and saved by yourself

3. The instrument can automatically calculate and store 10 regression fitting curves

4. Can store 4000 measurement results

5. Print current data and all stored historical data

6. Transfer current data and all stored historical data to the computer

7. The digestion temperature is automatically adjusted to control the constant temperature with the number of loads to achieve true constant temperature control

8. Automatic constant temperature reminder, automatic reminder, timing time can be adjusted and saved at will

9.3 sets of independent timing systems, which can be operated by 3 people at the same time

10. It can be extended to an intelligent spectrophotometer, which can measure more than 30 parameters by photometry

11. Automatic correction function

12. Large-screen LCD display, Chinese interface, Chinese key operation

13. Appearance design certificate.