- Phone
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Address
No. 10 Jinye Street, Xihongmen Town, Daxing District, Beijing
Beijing Huakeyi Technology Co., Ltd
No. 10 Jinye Street, Xihongmen Town, Daxing District, Beijing
Chemical Oxygen Demand(COD)It refers to the corresponding mass concentration of oxidant consumed when using strong oxidants to oxidize organic and inorganic reducing substances in water samples under certain conditions.CODIt reflects the degree of pollution of water bodies by organic and inorganic reducing substances.
The instrument adopts automatic control of water sample collection, digestion and oxidation, reaction measurement, data processing and transmission, and quickly and continuously completes the automatic process of wastewater treatmentCODThe entire process of analysis.
The instrument is designed according to the oxidation principle of potassium dichromate method. In the experiment, a known amount of potassium dichromate solution is added, and in a strong sulfuric acid medium, silver sulfate is used as a catalyst. After high-temperature digestion, the chemical oxygen demand is determined by spectrophotometry(COD)Value.
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Measurement method: |
Potassium dichromate method |
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Measurement range: |
0-3000mg/L,Scalable range |
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resolving power: |
0.1mg/L |
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Indication error: |
±3mg/L(0-60mg/L); ±5%(60-3000mg/L) |
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Zero value error: |
±5mg/L |
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Stability: |
±10% |
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Measurement interval: |
1-24Hour optional |
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Measurement method: |
Loop measurement, fixed-point measurement, trigger measurement |
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Environmental temperature: |
5-45℃ |
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ambient humidity: |
<95% |
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Display: |
7Inch LCD touch screen |
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Language: |
Chinese/English |
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Output method: |
4-20mA |
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Communication method: |
RS485,MODBUS |
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Power Supply: |
AC(220±22)V;50HZ |
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Power: |
<100W |
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Appearance dimensions: |
500mm*395mm*1450mm(Long)*wide*High) |
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Total weight of the instrument: |
about80Kg |
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Other functions: |
Automatic calibration, automatic cleaning, data storage, trend curve, etc |