2、 Technical principle:
This instrument is a pre treated heating reflux device for analyzing COD (chemical oxygen demand) in wastewater; For our new product, all indicators are better than previous products. Using microcrystalline glass panels coated with rare earth materials as samples for digestion work; It consists of three parts: heating, temperature control, and air cooling. According to the experimental method, the temperature is raised to 165 ℃ and maintained at a constant temperature for 2 hours to complete the COD digestion step.
3、 Application scope:
Widely used for water quality testing in industries such as sewage treatment plants, monitoring stations, environmental protection bureaus, third-party testing, petrochemicals, steel mills, power plants, healthcare, universities, and production-oriented enterprises (including food mills, paper mills, printing and dyeing factories, etc.); Suitable for testing the water quality of surface water, groundwater, industrial wastewater, domestic sewage, tap water, etc.
4、 Technical parameters:
1. Heating constant temperature: 165 ℃
2. Temperature control error: ≤ 1℃
3. Heating speed: 20 minutes (reaching the specified temperature)
4. Batch heating sample quantity: 8 (250ml conical flask heating)
5. COD measurement range: 10-1000mg/l, dilution measurement greater than 1000mg/l (GB11914-89 standard).
6. Adjustable heating time: 10-150min
7. Power supply and power consumption: AC220V； 0.8kw
5、 Functional features:
1. The microcrystalline glass panel coated with rare earth materials is used for heating, with fast heating and cooling, and a constant and uniform temperature.
2. The heating panel is corrosion-resistant and easy to clean.
3. The burr reflux tube, combined with the built-in fan, ensures good boiling cooling effect and ensures experimental accuracy.
4. Users can adjust the heating power according to the actual voltage situation to ensure the boiling effect during heating.
5. It has an automatic stop function when needed, truly achieving unmanned operation.
6. Energy saving, water-saving, safe and reliable, can save thousands of yuan in water and electricity bills every year.
6、 Configuration List:
One digestion host (with built-in fan), eight dedicated burr reflux pipes, one power cord, and one certificate of conformity, warranty card, and instruction manual.