working principle:

BODTrak ® The II biochemical oxygen demand analyzer adopts the principle of pressure difference measurement to simulate the process of microbial degradation of organic matter in nature: the oxygen in the air above the test bottle continuously supplements the dissolved oxygen consumed in the water, and the generated CO2 is absorbed by potassium hydroxide in the sealed lid. The pressure sensor can monitor the changes in oxygen pressure in the sampling test bottle at any time. Therefore, through the relationship between biochemical oxygen demand (BOD) (corresponding to the amount of oxygen consumed in the test bottle) and gas pressure, BOD measurement can be accurately performed, and the test results can be displayed directly on the screen in graphics.

-Application industry:

BOD analyzer is widely used in municipal sewage, industrial sewage, environmental monitoring, university research, domestic sewage, agriculture and other industries.

-Instrument features and advantages:

Adopting the differential pressure method, which complies with the national standard method. Simulating the process of microbial degradation of organic matter in nature, which is closer to the real situation

The BOD analyzer can continuously read and display changes in the measurement process in real-time through graphics

● Has 6 independent measurement channels

● Equipped with automatic shutdown and automatic data collection functions

The BOD analyzer can directly read measurement results from graphics and observe the cultivation and reaction process through curves, making the test results more intuitive

-There are pointers indicating in the graphic

-Graphic display of BOD values and cultivation time

Compared with the dilution inoculation method, the operation is simpler and more convenient