БПК анализатора

Model 890 Microcomputerized BOD Analyzer------serial products of environmental protection analysis instrument Model 890 Microcomputerized BOD5 (Biochemical Oxygen Demand for 5 Days) Analyzer is designed by the principle of pressure difference. When the water sample is put into incubator, keep the culture temperature at 20±1 oC for 5 days, because of the biochemical oxidization, the organism in the sample will be converted to the oxides of nitrogen, carbon and sulfur, etc, and the gas of carbon dioxide will overflow from the water then be absorbed by the potassium hydroxide (or sodium hydroxide) in the culture bottle, so the air pressure in the sealed culture bottle will reduce. Measure the pressure difference and give a data processing by microcomputer, the measuring result can be displayed and printed. This instrument is widely used by teaching or science research academy, petrochemical industry, water quality monitoring department and environmental protection department, etc.Specifications: Measuring range: 0 to 1000 mg/L Accuracy: accord with GB7488-87 Display: 6-digit LED Print: PP40 Sample number measured at one time: 8 Culture temperature: 20±1 oC Weight of main unit: 8 kg Power: <70 W Characteristics: Controlled by microcomputer Digital display, direct-reading Print biochemical reaction curve Simple to use Stable and reliable performance Easy to maintain