CODcr water quality online automatic monitor cabinet type

• Customization: Available
• After-sales Service: 1 year warranty lifelong free technical support
• Warranty: 1 year warranty lifelong free technical support
• Model NO.: T9000
• Display: Colour LCD
• Portable: Non Portable
• Certification: ISO9001, ISO14001, SGS
• Type: Concentration Meter
• Measurement range: 10~5000mg/L (segmented measurement, expandable)
• Accuracy: 5%-10%
• Repeatability: less than 5%
• Transport Package: Wooden Box
• Specification: 1470*500*400(mm)
• Trademark: CHUNYE
• Origin: Shanghai, China
• HS Code: 9027
• Production Capacity: 1000PCS/Month

Product Description

CODcr water quality online automatic monitor

I. OVERVIEW

Chemical Oxygen Demand (also known as COD) refers to the Under certain conditions, a strong oxidising agent is used to oxidise organic and inorganic reducing substances in a water sample. Organic and inorganic reducing substances in the water sample under certain conditions, when oxidising the water sample with a strong oxidant, the mass concentration of oxygen consumed by the consumption of oxidants relative to the mass concentration of oxygen, COD is also an important indicator to reflect the degree of water pollution by organic and inorganic reducing substances. COD is also an important indicator of the degree of water pollution by organic and inorganic reducing substances. The analyser is capable of long-term unattended automatic continuous operation according to the site settings. The analyser is able to work automatically and continuously unattended according to the site settings for a long period of time. industrial pollution source discharge wastewater, industrial process wastewater, industrial wastewater treatment plant wastewater, municipal wastewater treatment plant wastewater and other occasions. According to the complexity of on-site testing conditions, optional pre-treatment system to ensure that the test process is reliable, accurate test results, to fully meet the needs of different occasions on-site.
 

II. Measurement method:
The mixture of water sample, potassium dichromate digestion solution, silver sulfate solution (silver sulfate can be added as a catalyst to oxidise straight-chain fatty compounds more effectively) and concentrated sulfuric acid is heated to 165°C. The dichromate ions oxidise the organics in the solution and the colour changes, and the analyser detects this colour change, and converts this change into a COD value to be outputted, and the amount of dichromate ions consumed is equal to the amount of oxidisable The amount of dichromate ions consumed is equal to the amount of oxidisable organic matter, i.e. COD.

Technical parameters:

Specification Name	Technical Specification Parameters
Test Method	Potassium dichromate oxidation spectrophotometry
Measuring range	10~5000mg/L (segmented measurement, expandable)
Tolerance	Range 20% standard solution, not more than ± 10%
	Range 50% standard solution, not more than ± 8%
	Range 80% standard solution, no more than ±5%
Lower limit of quantification	≤15mg/L
Repeatability	Not more than 5%
24h low concentration drift	±5mg/L
24h high concentration drift	≤5%
Masking ability	Up to 20,000mg/L CL- masked
Measurement time	Less than 50min, ablation time settable
Measurement Mode	Time interval (adjustable), whole point or trigger measurement mode, settable
Calibration mode	Automatic calibration (1~99 days adjustable), according to the actual water samples, manual calibration can be set up
Maintenance cycle	Maintenance interval greater than 1 month, about 30min each time
Human-machine operation	Touch screen display and command input
Self-test protection	Self-diagnosis of instrument working status, no data loss after abnormal or power failure; after abnormal reset or power failure, the instrument automatically eliminates residual reactants and resumes working automatically.
Data storage	5 years data storage
Input Interface	Switch quantity
Output Interface	1 RS232 output, 1 RS485 output, 2 4~20mA outputs.
Working environment	Indoor work, recommended temperature 5 ~ 28 ºC, humidity ≤ 90% (no condensation)
Power supply	AC220±10%V
Frequency	50±0.5Hz
Power	≤150W without sampling pump
Dimension	H1470×W500×D400(mm)