BOD220A Microbial BOD Rapid Analyzer

This instrument does not require 5 days of cultivation and can directly measure BOD values, with fast and accurate measurement. It has been recognized and approved by the State Environmental Protection Administration, meets the environmental protection industry standards (HJ/T86-2002), and is listed in the fourth edition. The instrument adopts microbial electrode method (standard method).

The microbial membrane is fastened onto the membrane oxygen electrode to form a microbial electrode. The instrument adopts a flow measurement method, and the microbial membrane is fixed by the flow measurement cell component. Due to the proportional relationship between the output current of the oxygen electrode and the content of dissolved oxygen, when a liquid (buffer solution) without any organic matter passes through the flow cell, the assimilation effect of microorganisms is minimal, resulting in almost no reduction in dissolved oxygen flowing through the microbial membrane. When a solution containing organic matter passes through a flow cell, the assimilation of microorganisms becomes abnormally active, consuming more dissolved oxygen, resulting in a decrease in the amount of dissolved oxygen flowing through the microbial membrane. This change in dissolved oxygen content directly causes a year-on-year change in the output of the oxygen electrode, that is, the relationship between the change in output current and the content of organic matter in the sample is proportional. Therefore, it is calculated thatBODValue.

Outstanding usage characteristics
*Method standard:HJ-T86-2002
*Wide applicability
*Large measurement range (measurable)2-4000mg/L）

*HIGH SENSITIVITY,Can directly detect low concentration surface water
*Sample volume exceeds20mlStrong representativeness
*measurement accuracy:0.1mg/l
*Water samples do not require pre-treatment and have strong anti-interference ability
*Having a national electrode design
*Short measurement time (measuring a sample's cycle only requires20About minutes)
*Using dry microbial film, it has a long storage time and is easy to replace
*High safety, the strains used are harmless to the human body
*The liquid circulation pipeline design is simple and easy to replace
*large screenLCDDisplay panel, directly displaying various working states and measurement results of the instrument
*Self provided micro printer

executive summary
Function:BODRapid determination of values
Measurement principle: Microbial electrode method
Injection method: Flow continuous injection driven by peristaltic pump

Sample types: various types of surface water, domestic sewage, industrial wastewater
Measurement range:2-4000mg/l
Response time:≤8 min
Relative standard deviation:≤5%
Electrode lifespan:2Years and above
Microbial membrane: dry microbial membrane,Can be stored for a long time and easily replaced

The sensor flow pool and measurement pool are combined into one,The sample solution is quantitatively injected into the flow cell by a peristaltic pump and completed simultaneouslyBODDetermination of,Simultaneously complete the cleaning of sensors and measuring cells while injecting buffer solution into the flow cell,Convenient and fast.

Electrical Parameters
Output: Microbial electrode0-20μA
power waste:50W
Test function: The constant temperature device can keep the temperature of the tested sample constant, achieving constant temperature measurement
Power indicator:LED
mechanical parameters
Environmental temperature:5-40℃
Shell: Carbon steel plate
Appearance dimensions:540*370*225mm（L.W.H）
Weight: Approximately18kilogram