Wholesale of COD digester

Microcrystalline COD digester

HCA-102 standard COD digester，Adhered to standards (ISO) and national standards（HJ 828-2017）The basic principle is to ensure the digestion operation of reflux heating and micro boiling for 2 hours, and the preparation and addition of reagent solutions are in accordance with the national standard method, ensuring reliable and accurate analysis results.

The HCA-102 standard COD digester adopts microcomputer technology for timed control of the heating electric furnace, which can simultaneously heat 8 250ML conical digestion reflux devices.Eight digestion conical reflux devices can be heated simultaneously,To achieve the goals of energy conservation, reducing power load, and improving efficiency.

Microcrystalline COD digester

　HCA-102 standard COD digesterThe use of glass burr reflux pipes instead of spherical reflux pipes, and the use of air cooling technology instead of tap water reflux cooling, with static water assisting cooling at the end of the condenser pipe, can not only save water and standardize the instrument, but also improve the safety of instrument use.

The chemical solution preparation, operation, and COD calculation of the instrument shall be in accordance withHJ 828-2017For COD water samples below 50mg/L, the accuracy can be improved by diluting the titrant and oxidant. For COD water samples above 700mg/L, the measurement can be completed by diluting the water sample proportionally.

Technical Indicators:

Measurement range: 10-700mg/L, diluted water samples greater than 700mg/L for measurement.

Dissolving time: 10 minutes -2 hours and 30 minutes (users can choose their own heating time)

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

Industrial organic wastewater (500mg/L), with a relative standard deviation not exceeding 8.0%

Environmental temperature: ≤ 35℃

Dissolve 8 samples (using a 250mL conical flask with a 24 # grinding mouth)

Heating power: ≤ 1600W (AC 220V, 50HZ, users can choose their own heating power)

Performance characteristics:

The wavy strip heating wire of the flat electric furnace plate is made of a new type of rare earth alloy material, which has an extremely long service life. The surface of the electric furnace plate can withstand up to 800℃High temperature glass panel, with uniform heating on the surface of the electric furnace during heating, and fast heating and cooling rates.

The electric furnace plate uses a new type of high-temperature resistant inorganic environmentally friendly insulation material, which has low heat loss in the bottom plate and surrounding areas, uniform heating and thermal conductivity, and higher thermal efficiency.

Flat electric furnace plate with heat-resistant glass panel that is flat, smooth, and easy to clean; If the surface is contaminated, simply wipe it dry with a cloth to reduce damage to the instrument caused by improper operation.

The improved glass burr reflux tube and heat dissipation system ensure the parallelism and accuracy of the sample digestion results due to its excellent digestion reflux effect.

Corresponding to different heating powers selected by the user, the surface heating temperature of the electric furnace can be displayed.

The digestion time can be set. After digestion is completed, the instrument automatically stops heating, and the instrument fan continues to work for half an hour to assist in sample cooling. It can be left unattended.

Energy and water conservation, safety and reliability have improved the work efficiency of operators.