Brief introduction

Biochemical oxygen demand: the dissolved oxygen consumed by organic and inorganic substances in water under specified conditions through biological oxidation. The RB-890C microcomputer BOD5 analyzer uses an air pressure sensor instead of mercury pressure difference method to measure biochemical oxygen demand. Combined with a digital display screen, it can display the variation curve of BOD5 values, making the data more intuitive; And the use of mercury free method reduces the harm to experimental personnel; And the stirring system adopts ultra-thin high-performance non mechanical electromagnetic stirring, which is stable and has a long service life,; It can be applied to industries such as laboratory testing, sewage treatment, colleges and universities, environmental monitoring, sewage treatment, and colleges and research institutions.

2、 Product Features

-Simulate the real process of microbial degradation of organic matter in nature, which is closer to the actual situation

-Can display the BOD change curve and real-time BOD values during the measurement process

-Comes with printing function. Automatically print the parameters set before measurement; Set the frequency of printing BOD values during the measurement process by yourself; Print current data at any time

-Can be connected to a computer through RS232 interface and USB interface

-The ultra-thin high-performance non mechanical electromagnetic stirring system has a long service life and can ensure system consistency during the cultivation cycle.

-Real time clock display

-8 measuring bottles, 8 independent measuring channels

-After the measurement cycle is completed, an alarm prompt will be triggered, and then data can be collected and stored, and the device will automatically shut down. If there is no one operating for a long time, the device will automatically shut down

-Mercury free device ensures safe and accurate instrument operation for experimental personnel

-You can set the waiting time for constant temperature measurement by yourself to meet the temperature requirements of the environment

-The cultivation period is set within a wide range (0-30 days) to meet different experimental requirements

-Wide range of range selection (small range 0-40mg/L, range 0-4000mg/L)

-Color LCD display, user-friendly interface, easy to operate and learn

-Power off data protection function ensures measurement continuity and data integrity

-Provide supporting software that can connect to a computer to view, store, and print relevant measurement data and curves

-Infrared remote control can be used to operate the instrument, avoiding inaccurate data measurement caused by repeatedly opening and closing the temperature control box door during the measurement process

-Large capacity storage, capable of storing up to 20 years of historical data

-The instrument can save the BOD5 values and biochemical reaction curves of the eight samples analyzed last time;

-Adopting innovative sensing technology, effectively avoiding the influence of external atmospheric pressure changes on measurement results

3、 Technical indicators

1. Measurement principle: Mercury free pressure difference method, using electronic sensors for negative pressure difference measurement.

2. Display mode: 854 * 480 true color display screen

3. Measurement range: 0-40 mg/L, 0-80 mg/L, 0-200 mg/L, 0-400 mg/L, 0-800 mg/L, 0-2000 mg/L, and 0-4000 mg/L

4. Each measurement item supports 8 * 720 data point records

5. Measure the number of bottles: set from 1 to 8 bottles

6. Measuring bottle volume: 520ml

7. Data storage: 10000 measurement records, data will not be lost after 20 years of power outage

8. Mixing method: Non mechanical electromagnetic stirring

9. Data Query: Supports both curve and table query methods

10. Data output: RS232 \ \ USB, equipped with dedicated BOD data acquisition and analysis software

11. Data printing: Equipped with a thermal printer, it can automatically or manually print measurement results

12. BOD cultivation measurement cycle: set within 1-30 days

13. Test temperature: 20 ℃± 1 ℃

14. Instrument storage temperature: -20 ℃~+60 ℃

15. Result storage: Depending on the measurement cycle, the results can be automatically stored continuously for up to 30 days at a time.

16. Measurement accuracy: ± 5%

17. Resolution: 1mg/L BOD

18. Power supply mode: AC 100V~220V wide voltage input;

19. Dimensions: Length * Width * Height 320mm * 340mm * 90mm

20. Instrument weight: 5kg

4、 Product configuration

1. 1 microcomputer host

2. 8 biochemical culture bottles

3. 8 electromagnetic stirrers

4. 8 sealed cups

5. 1 power cord

6. 1 copy of instruction manual

7. 1 certificate of conformity

8. 1 warranty card