CODcr analyzer

CODcr analyzer

Product model: SS-COD-02

Application environment:

Used for COD detection at pollution source sewage discharge outlets, municipal sewage inlet and outlet outlets, and industrial wastewater discharge outlets.

Testing method:

Under certain conditions, a mixture of potassium dichromate and sulfuric acid is added to the water sample and reacted in a digestion tank to oxidize the organic reducing substances in the water sample. During the reaction, Cr6+is reduced to Cr3+, causing a change in the color of the mixture. The consumption of potassium dichromate is calculated by detecting the color change of the mixture using a photoelectric colorimeter, and finally converted into the oxygen required for the oxidation-reduction reaction.

CODcr analyzerTechnical Specifications:

Range: 10-200mg/L (customizable range up to 10000mg/L)

Accuracy: Within the range of 10-200mg/L, 20% * ≤± 10%; 50%* ≤±8%； 80%* ≤±5%；

Repeatability: ≤ 2%

Measurement time: Periodic measurement (adjustable from 1h to 30s), hourly measurement mode, external trigger mode optional

Working environment: 0-55 ℃ (65 ± 20)% RH without condensation

Sample temperature: 0-55 ℃

Digital communication: MODEBUS/RS485

Power supply: 100-240VAC (50 Hz)

Product Features:

Modular design, easy replacement and maintenance, multiple parameters can be combined for measurement; Adopting plunger pump and multi-directional valve technology, pressure resistance, corrosion resistance, and more accurate measurement; Integrated data collection and analysis system;

Sealed digestion component: High temperature and high pressure digestion system accelerates the reaction process and overcomes the corrosion of equipment caused by the volatilization of corrosive gases in open systems.

Automatic cleaning function;

Multi channel measurement and alarm output with automatic calibration and quality control functions; Real time monitoring, capable of remote transmission;

7-inch industrial grade color touch screen, user-friendly operation, real-time display of the entire system operation process. By default, data is saved for 2 years, and the storage time and interval can be customized according to customer requirements.