LB-50 type BOD Tester, factory direct supply BOD speed measuring instrument

A, LB-50 type BOD Tester Technical Specifications: Measuring range: 1 ~ 4000mg / L Repeatability: 10% of the time measurement sample time: 8 minutes injection mode: constant injections of buffer solution consumption: 4.5ml / min the required sample volume: about 40ml test once every operating temperature range: 5 ℃ ~ 35 ℃. Humidity: ≤70% External dimensions: 560 × 360 × 200mm Weight: 20kg II Introduction: LB-50 type BOD Tester using microbial electrode method, in water samples BOD value can be quickly measured, and easy to operate, measure accurate. Its principle is based on oxygen metabolism of microorganisms of organic matter, the determination of a sample to be completed within eight minutes, greatly reducing the time required for measurement. The method in line with "quality of biochemical oxygen demand (BOD) Rapid Determination of microbial sensors" (HJ / T86-2002) requirements, published in 2002, "Water and Wastewater Analysis Method Detection" (fourth edition) listed as A class methods. Three, LB-50 type BOD Tester Measuring principle: When saturated with dissolved oxygen in contact with the sample into the flow cell microorganism sensor, the solubility of the sample received biodegradation of organic matter in the biofilm microbial species consumed some oxygen to the oxygen electrode surface diffusion of oxygen reduction on quality. When the sample in biodegradation of organic matter to achieve a constant rate of diffusion of the biofilm (quality), then spread to the oxygen electrode surface quality has reached a constant oxygen, resulting in a constant current. Because of the constant current quantitative relationship to reduce the amount of the difference between oxygen in its linear range, proportional to the concentration of dissolved oxygen and organic matter consumes dissolved oxygen electrode to reduce the amount of dissolved oxygen measured to calculate the BOD value. Four, LB-50 type BOD Tester features: advanced principle - using microbial electrode method. Results are accurate - and five days there is a strong comparable method. Simple operation - Microcomputer control, intelligent measurement. Short measurement time --8 minutes to complete a sample measurement. Maintenance is simple - just regular replacement biofilm and infusion tube. Low cost - low consumables prices. High reliability - a simple structure, no wearing components, long life. Print function - with micro-printer, the measurement results printout Contact: Zhang Zhiyong Mobile: 18661892092 Fax: 0532-83615580 Email: 1466531414@qq.com Please pay attention to our website: http: //www.shou-hang.com such. There is a demand, please contact me first thank Qingdao Environmental Protection to provide you with a comprehensive line of technical support and improve after-sales service