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TC-100D standard COD digester
Product Introduction: The GB11914-89 analytical method standardizes the steps for determining the chemical oxygen demand (COD) of water quality, and s
Product details
name:Biao zhunCOD digester, air-cooled COD digester
Main technical parameters:
1. Microcrystalline glass panel heating, uniform heating
2. Can simultaneously digest 8 samples at once
3. The digestion temperature and time can be set (temperature setting is only available for temperature controlled models)
4. Using conical flask heating, titration after digestion is completed without transfer, making the experiment convenient
5. The condensation adopts fan condensation+burr reflux condensation, without the need for external circulating water
Telephone:Q Q：915677768
(Biao Zun COD Dissolver) (Temperature Controlled COD Dissolver)
Brief introduction
※ The analysis method of biao zhunGB11914-89 standardizes the determination steps of chemical oxygen demand (COD) for water quality, and strictly specifies the conditions and indicators such as heating digestion time, solution acidity, oxidant and catalyst dosage of the method. It is obvious that the determination of COD (cr) in water quality has strict conditions, and any operation that violates these conditions will affect the accuracy of the determination.
※ The TC-100D biao zhun COD digester follows the basic principles of international biao zhun (ISO) and biao zhun (GB11914-89), ensuring a digestion operation with reflux heating and slight boiling for 2 hours. The preparation and addition of reagent solutions are consistent with the national standard method, ensuring reliable and accurate analysis results.
※ The TC-100D biao zhunCOD digester adopts microcomputer technology for timed control of the heating electric furnace, which can simultaneously heat 8 250ML conical digestion reflux devices. To achieve the goals of energy conservation, reducing power load, and improving efficiency.
※ The heating panel of TC-100D biao zhunCOD digester adopts ceramic glass (microcrystalline glass panel) as the heating carrier, which has the characteristics of adjustable thermal expansion coefficient in a large range, chemical corrosion resistance, wear resistance, good thermal stability, high operating temperature, and good temperature uniformity; The 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 fully comply with GB11914-89. COD water samples below 50mg/L can be improved in accuracy by diluting titrants and oxidants, while COD water samples above 700mg/L can be determined by diluting the water sample proportionally.
2、 Technical specifications
1Measurement range: 10-700mg/L, diluted water samples greater than 700mg/L are measured
2. Temperature control range: Room temperature~450 ℃ (only applicable to instruments with temperature control)
3. Dissolving time: 10 minutes -2 hours and 30 minutes (users can choose their own heating time)
4. Measurement error: Potassium hydrogen phthalate solution (500mg/L), relative deviation not exceeding 5.0%; Industrial organic wastewater (500mg/L), with a relative deviation of no more than 8.0%
5. Dissolve 8 samples (using a 250mL conical flask with a 24 # grinding mouth)
6. Environmental temperature: ≤ 35℃
7. Heating power: ≤ 1600W (AC 220V, 50HZ, users can choose their own heating power)
8. Instrument size: 45cm (L) * 35cm (W) * 65cm (H)
3、 Performance characteristics
1. The cooling adopts air cooling technology and uses high-power dual fan cooling to ensure the digestion cooling reflux effect.
2. 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 is covered with a glass panel that can withstand high temperatures up to 800 ℃. When heated, the surface of the electric furnace heats up evenly, and the heating and cooling rates are fast.
3. 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.
4. 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.
5. 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.
6. Corresponding to different heating powers selected by the user, the surface heating temperature of the electric furnace can be displayed.
7. 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.
8. Energy and water conservation, safety and reliability have improved the work efficiency of operators.
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