1Product Introduction

DS-805H digital BOD₅The measuring instrument is a new type of instrument that uses the principle of air pressure difference method to determine biochemical oxygen demand. It can be applied to environmental monitoring, petrochemical industry, medical and health care, teaching and research departments to monitor water quality. This series of products follows the basic principle of GB7488-87 five-day biochemical oxygen demand for water quality. The five-day cultivation method is also known as the standard dilution method or dilution inoculation method. The principle is: after diluting the water sample, cultivate it at 20 ℃± 1 ℃ for 5 days, and calculate the dissolved oxygen content in the water sample before and after cultivation. The difference between the two is BOD5. Biochemical oxygen demand or biochemical oxygen consumption (generally referring to five-day chemical oxygen demand) is a comprehensive indicator of the content of aerobic pollutants such as organic matter in water. The total amount of dissolved oxygen consumed in water when organic matter is oxidized and decomposed by microorganisms, resulting in its inorganic or gaseous transformation. The higher its value, the more organic pollutants there are in the water, and the more severe the pollution.

IIProduct parameters

1. Measurement range: 0-1000mg/L (dilution is required when BOD value exceeds the measurement range)
2. Temperature: 0-40 degrees Celsius
3. Measurement method: Differential pressure method
4. Accuracy: Complies with the national standard GB7488-87
5. Batch processing capacity: 6 water samples
6. Display:LEDDisplay and update the results and status of BOD testing in real-time
7. Cultivation temperature: 20 ℃± 1 ℃
8. Transmission method: RS-232 interface input/output
9. Host weight: 5kg
10. Host power consumption: ≤ 30W

3、 Product Features

1Intuitiveness: Display BOD initial value directly with numbers

2stabilityUsing imported pressure sensors,Stable performance, minimal drift, and low maintenance rate

3safetyNot using mercury, safe and free from secondary pollution

4Not dilutedSample BOD values within the range of 0-1000mg/L do not require dilution

5Fully sealedFull system sealing, differential pressure testing, not affected by atmospheric pressure changes, accurate and reliable measurement

6intelligenceIntelligent instrument, capable of automatic power on/off, full button operation, and can be directly connected to a computer to upload data