CODcr-6330 COD online V1.0
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Product details
Application
This method is suitable for testing wastewater with COD in the range of (0-2000) mg/L, and can be customized according to the actual requirements of users. COD online automatic analyzer is mainly used for real-time monitoring of municipal domestic sewage, waste (sewage) water discharged by enterprises, surface water and other total nitrogen concentration online automatic monitoring. According to the complex and changeable working conditions on site, it is suggested to select and distribute the water sample collection/distribution system containing suspended solids to meet the needs of different industries and customers. This method is mainly used for on-line automatic monitoring of COD concentration of waste (pollution) water discharge point source, surface water, etc.
General Instruction
CODCr-6330 is an Chemical Oxygen Demand online automatic analyzer which can be applied to the detection of COD in various water bodies such as rivers and lakes, industrial sewage, chemical wastewater, domestic sewage and sewage treatment plants. This is second generation Analyzer based on the requirement of environmental protection new standard, with many good features like low reagent consumption, size miniaturization, reagent less quantitative, remote quality control, remote diagnosis maintenance. Through a large number of operating practices we
adopt stable water sample collection/distribution system to provide a better application solution. Working principle: Sample Water, potassium dichromate digestion solution, silver sulfate solution (join silver sulfate as the catalyst can be more effective in oxidation fat straight-chain compounds), and a mixture of sulfuric acid heated to 165 ℃, dichromate ion oxide
solution changes the color of the organic matter of analyzer to detect the color changes, and converted to COD value output to the change.The amount of dichromate ions consumed is equivalent to the amount of oxidizable organic matter. Reducing inorganic substances in the water sample, such as nitrites, sulfides, and ferrous ions, which could react with potassium dichromate and it will affect the measurement results;the amount of potassium dichromate consumed is recorded in the measurement results, which making the measurement results higher. The interference of chloride ions in water samples can be eliminated by adding mercury sulfate, because chloride ions can form very stable mercury chloride with mercury ions.
Specifications
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Measurement range |
(0~2000)mg/L (CODCr concentration)
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Accuracy |
CODCr concentration≤40mg/L:≤±10%
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40mg/L＜CODCr concentration≤100mg/L:≤±8%
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100mg/L＜CODCr concentration≤160mg/L:≤±5%
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CODCr concentration＞160mg/L:≤±3%
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Measurement Low Limit |
≤15mg/L(±30%)
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Repeatability |
≤5.0%
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Measurement period |
Minimum period:50 minutes / time,According to water
sample,10~45 min can be set
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Sampling period |
hourly mode;
(1~999min)can be set
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Calibration period |
20~720 hours can be adjustable
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Maintainance Period |
Every month, each time 30 min(refer maintenance part)
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Power supply |
AC 100~120V/200~240V,50/60Hz.frequency:150W
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Output |
RS232＆RS485＆4~20mA
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| Environmental requirements |
Suggested under room temperature:(20~28)℃
Relative humidity:≤90%(No condensation)
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Dimension |
Length*Width*Heigh:(400*202*800)mm
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Workshop
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CREATEC will be there where there is water
Focus on the independent research and development of online water quality analysis instruments and water environmental protection analysis instruments
ABOUT US
Hebei Create Instrumentation Technologies Co., Ltd. is a national high-tech technology enterprise which is specialized in the water quality online analysis instruments.The founder Hao shuanju was first awarded the national “Automatic Pure Water Monitor” patent in 1988.And entered into the field of water quality online analysis and research.
CONTACT US
Factory :NO.2 Building ,No.368 North Xinshi Road, Shijiazhuang 050091,Hebei Province,China.
Office Address: Block 23, Keying·Zhichuang Valley, Huai'an West Road, Luquan District, Shijiazhuang City
Tel： 86-311-83831058 / 67368592
E－Mail：meter@createc.cn
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