The BODTrak II biochemical oxygen demand analyzer is designed based on the principle of differential pressure measurement. The BODTrakII biochemical oxygen demand/BOD analyzer simulates the biodegradation process 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 CO2 generated during the degradation of organic matter is absorbed by lithium hydroxide in the sealed lid. The pressure sensor monitors the changes in oxygen pressure in the test bottle over time. Establish a correlation between biochemical oxygen demand (BOD) (corresponding to the amount of oxygen consumed in the test bottle) and gas pressure, and directly display the BOD value on the screen. The traditional dilution inoculation method is cumbersome and time-consuming, requiring dedicated personnel to supervise during the five-day cultivation process. Compared to this, the BODTrak analyzer is simple to operate, easy to test, and does not require dilution for water samples with BOD values less than 700mg/L. Put the tested water sample into the test bottle, connect the pressure sensor to the microprocessor control device, and the instrument can automatically complete the subsequent testing without supervision during operation. When the set cultivation time is reached, the testing system automatically shuts down and the experimental data is stored in the instrument for easy access.

Characteristics of BODTrak II Biochemical Oxygen Demand Analyzer:

The BODTrak analyzer can choose cultivation times of 5 days, 7 days, and 10 days, and can simultaneously produce six water samples.

Differential pressure method, in compliance with national standards. 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

6 independent measurement channels

● Automatic shutdown and automatic data collection

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

BODTrak II Biochemical Oxygen Demand Analyzer Parameters: