What are the advantages of COD rapid tester?
The advantages of cod rapid tester are as follows:
The standard method of fast cod analyzer is reflux digestion titration. This method has the advantages of long digestion time (2 hours), high energy consumption, high reagent cost, low efficiency, etc., which often troubles actual operators. Cod rapid tester can use open tube heating digestion method or sealed digestion method. The cod rapid tester uses special catalysts and oxidants, with small reagent dosage, low secondary pollution and easy disposal of waste liquid. After adding special oxidants and catalysts, the water sample can be digested within 10 minutes, which saves time and effort, as well as electricity and brings more benefits.
There are two methods for the determination of chemical oxygen demand, the manganese method and the chromium method. The degree of oxidation varies depending on the oxidant used. For the same water sample, the results of the two methods will be different. The difference between these two methods is that the manganese method is used to measure the water quality of lakes and reservoirs, and the chromium method is used to measure the water quality of rivers. The chromium method is mainly used to determine contaminated water with COD greater than 10. The manganese method is mostly used in the evaluation of clean water, natural water, and drinking water. Compared with the chromium method, there are about a dozen or even a few water bodies.
The COD tester is sufficient to meet the routine measurement requirements of the laboratory. The principle adopted by the cod tester is that the glass burr return pipe replaces the spherical return pipe, and the air cooling technology replaces the tap water cooling method, which can save water and standardize the instrument. Improve the safety of the cod meter.
The COD analyzer is also equipped with an air pressure sampling device and an automatic zero calibration burette, which simplifies the later titration operation procedures and improves the reliability of the method.
The COD meter uses the eighth generation product developed by the latest electronic and mechanical technology. The cold light source display technology is applied, the life of the light source lamp is as long as 100,000 hours, and the switching of the measurement parameter optical path is changed from manual to automatic switching, eliminating the error factor of artificial rotation. Quickly and accurately measure the chemical oxygen demand of sewage in the laboratory and in the field.
COD tester is the necessary experimental equipment for environmental monitoring stations, environmental engineering and technical personnel, and enterprise laboratories.
The core of the COD tester is a microcomputer chip, the operation is controlled by the keyboard, the LCD display with backlight displays the measurement results, and a micro printer can print the measurement results with time each time. The measurement conditions of 255 different water samples can be stored for recall.
The COD tester is a portable structure, suitable for 100v, 110v, 220v, 240v power supply, and can also be powered by car power.
The cod tester is a photometric COD rapid tester specially developed according to the water quality, usage habits and legal requirements of Chinese users. It meets the daily measurement requirements of the laboratory and supports on-site measurement. The COD analyzer meets the requirements of the environmental protection system rapid digestion spectrophotometric COD determination specification. Built-in standard COD test curve and support user-built curve.