[Product Introduction]

SHSeries of national standardsThe COD intelligent reflux digestion device is designed in full accordance with the basic principles of the standard HJ 828-2017 (replacing GB 11914-89) issued by the Ministry of Environmental Protection of China. It can effectively ensure the digestion process of reflux micro boiling constant temperature control heating for 2 hours. The preparation and addition of reagent solution are consistent with the requirements of HJ 828-2017 standard, which can ensure accurate analysis results.

【functionCharacteristics

※ Comes with a 7-inch touch color screen, one click selection of Chinese menu

※ Equipped with 10 independent ceramic heating plates, with uniform temperature, corrosion resistance, and high temperature resistance

※ The time setting can be adjusted freely according to the required power level

※ It has one click start and single independent start functions, making it easy to power on and energy-saving

The condensation reflux method adopts a dual mode of air cooling and water cooling (optional)

The use of high air volume enclosed air cooling principle ensures the consistency of temperature in each channel

After the digestion is completed, the instrument will automatically sound a warning and stop heating work

※ It has the characteristics of environmental protection, energy saving, low thermal radiation, small duty cycle, low cost, and high efficiency

[Applicable Standards]

HJ 828-2017 "Determination of Chemical Oxygen Demand in Water Quality - Dichromate Method"

Technical indicators

※ Measurement range: 4~700mg/L, 700~10000mg/L (requires diluted water sample)

Measurement time: ≤ 150 minutes (can be set according to user needs)

Measurement error: Potassium hydrogen phthalate standard solution (500mg/L), relative standard deviation not exceeding 5.0%, industrial wastewater (500mg/L), relative standard deviation not exceeding 8.0%

※ Environmental temperature:- 5～45℃

※ Display mode: 7-inch high-definition touchscreen interface

※ Sample size for digestion: 10 per batch (any digestion quantity can be set)

※ Dissolution time: can be set according to user needs, 1-999 minutes

※ Fan settings: automatic/manual

Heating power: 3000W (AC 220V ± 22V, 50HZ)

※ Whole machine weight:32KG