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Water Quality Analysis Instrument

COD-K1

COD Analyzer

0-300mg/L,0-1000mg/L

application
Widely used for detecting the content of polluted water bodies such as polluted rivers
domestic sewage and industrial wastewater.
Functional characteristics
Dual high impedance preamplifier: high input impedance anti noise
strong anti-interference ability;Multiple calibration methods;
Human machine dialogue: The menu operation is simple and users can operate it according to the prompts on the screen; ulti parameter display on the same screen: simultaneously displaying acid and alkali  oncentration values temperature values and working status;
Software setting output method: 4-20mA output parameter type;
Free setting of measurement range and alarm upper and lower limits; Upper and lower limit exceeding alarm prompt;
Three sets of relay control switches with adjustable hysteresis control range;
Self cleaning switch setting  setting cleaning time and interval;Data storage operation logs and printing functions;
After sales service: providing technical support and contact information for after-sales service to users Maintenance is very simple it is recommended to calibrate once a month; Adopting multiple calibration methods to ensure measurement accuracy;
Optional Chinese and English menus
describe

The COD online analyzer uses potassium dichromate open reflux colorimetric method to oxidize the sample. Under the control of a microcomputer, the water sample is mixed with potassium dichromate solution and concentrated sulfuric acid, and silver sulfate is added as a catalyst to chelate chloride ions in the mercury sulfate solution. The mixed liquid undergoes a certain period of reflux at 165 ℃, and the reducing substances in the water react with the oxidant. The Cr6+in the oxidant is reduced to Cr3+, and the color of the mixture will change. Convert the increase in Cr3+into voltage change through photoelectric colorimetry. By measuring the changed voltage and calculating the COD value through curve lookup.

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Contact Information

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LUDWIG China Representative Office

Production address of the Chinese factory:
LUDWIG Industrial Park, No. 88 Chunfen Road, Guangzhou Economic and Technological Development Zone
Fax: 020-82879806
Customer service hotline: 400-860-9760
Sales consultation email: lw@ludwig-schneider.com.cn

China Sales Center

Production address of the Chinese factory:
LUDWIG Industrial Park, No. 88 Chunfen Road, Guangzhou Economic and Technological Development Zone
Tel.: 021-5582-7706
Fax: 021-5582-7725
Technical support email: support@ludwig-schneider.com.cn