Online CODcr automatic monitoring instrument-Global supplier

4th Floor, Building C, Weijian Technology Industrial Park, Beihuan Road, Shiyan Street, Bao'an District, Shenzhen

Monitoring principle

S1501Online CODcr automatic monitoring device: A quantitative solution of potassium dichromate is added to the sample. In a strong sulfuric acid medium, silver sulfate is used as a catalyst, and mercury sulfate is added as a chloride ion masking agent. After the mixture is subjected to high-temperature and high-pressure sealed digestion at 165 ℃, hexavalent chromium is quantitatively converted to trivalent chromium, and the color of the mixture changes. The color change is measured by spectrophotometry to calculate the actual COD value. The amount of dichromate ions consumed is equivalent to the amount of oxidizable organic matter.

Host technical parameters

detectionproject	CODcr (Chemical Oxygen Demand)
Testing standards	Water quality - Determination of chemical oxygen demand - Rapid digestion spectrophotometric method
Range of measurement	10.0~1000.0mg/L (range can be expanded according to customer needs)
Indication error	≤±5%
zero drift	≤±5mg/L
repeatability	≤±3％
memory effect	≤±5%
Measurement period	Minimum measurement cycle of 30 minutes
transmission mode	RS232/RS485， 4~20mA input/output, switch input x 2, switch output x 2
printer	built-inThermal printer
Operation interface	Chinese
display	7-inch touch screen
Power supply mode	220VAC±10%； 50Hz±5%
MTBF：	≥ 1440 hours
work environment	5-45℃ ≤85%No condensation
Host size	1600mm×500mm×420mm

Instrument characteristics

1. Adopting HJ/T399-2007 "Water Quality - Determination of Chemical Oxygen Demand - Rapid Digestion spectrophotometric method", with high industry recognition;

2. Unique three-level precision photoelectric measuring device, fast and accurate reagent extraction, greatly reducing the impact of peristaltic pump tube aging;

3. Accurate temperature compensation algorithm and ambient light elimination measures ensure consistent accuracy regardless of spring, summer, autumn, or winter;

4. Highly reliable reagent selection valve and digestion bottle components with low failure rate and minimal maintenance workload;

5. Intelligent diagnostic system, low dose consumption, convenient equipment maintenance, and lower maintenance costs;

6. Automatic calibration and one click cleaning function ensure accurate equipment measurement and clean and pollution-free reagent channels;

7. Complete pressure detection protection, temperature protection, and leakage alarm functions ensure the safe operation of the equipment;

8. Automatic electronic control safety door design, carefully caring for the safety of equipment operation and maintenance personnel;

9. Large capacity storage space, storing measurement data and log information for more than five years, providing a clear view of equipment operation status;

10A more user-friendly touch based graphical interface, extremely easy to operate, no need to worry about memory, within reach.