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Product model: HCA-103
Measurement range: 0~700mg/L, 700~10000mg/L (diluted with water sample)
Measurement time: not less than 2 hours
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: -20 ℃~55 ° C
Power supply voltage: AC 220V ± 10%, 50HZ
Heating power: 2500W (conical bottle heating)
Batch processing: 12 tubes of microcrystals
Dimensions: 500 × 370 × 620mm
Instrument weight: 33kg
- Product Details
- Product manual
Ye Tuo HCA-103 Microcrystalline COD Digester
Model: HCA-103 (12 tube microcrystalline)
Product Overview:
The COD reflux digester uses a glass burr reflux tube instead of a spherical reflux tube, and uses air cooling technology instead of tap water cooling. The cooling part is mainly completed by a burr condenser tube and a fan. The upper part of the condenser tube is spherical, and the catalyst is added here to prevent the instantaneous volatilization of light components in the sample. The lower part is "burr" shaped, with two opposite spherical condenser tubes protruding from the condenser tube wall on a plane. In addition, the dual effect of the cooling water inside the upper spherical reflux tube and the fan inside the machine ensures the reflux cooling of the sample.
This instrument strictly follows the determination steps specified in the standard analysis method of the Ministry of Environmental Protection of China, HJ 828-2017 Determination of Chemical Oxygen Demand (COD) in Water Quality - Dichromate Method (replacing GB 11914-89), and specifies the conditions and indicators of the method, such as heating and digestion time, solution acidity, dosage of oxidants and catalysts. Following the basic principles of international standards (ISO) and national standards (GB), ensure the digestion operation of reflux heating and micro boiling for 2 hours, and the preparation and addition of reagent solution comply with the dichromate method specified in HJ828-2017 by the Ministry of Environmental Protection, ensuring reliable and accurate analysis results.
Product Features of Ye Tuo HCA-103 Microcrystalline COD Digester
The increase of 2 opposite spherical condensation bubbles protruding from the condensation tube wall to 3 cold condensation bubbles ensures an improved condensation effect
● Automatically raise the temperature to the set temperature, time for digestion and reflux, automatically stop heating, continue to operate the cooling fan, and assist in sample cooling
Increasing from 5 samples to multiple samples, a 250ML flat bottomed triangular flask with dual heating, good bottom contact, and uniform heating. And it is convenient to operate and sample when using dual channels
New type of glass burr reflux pipe and heat dissipation system, with good digestion reflux effect to ensure the accuracy of sample digestion results
Air cooling replaces the previous circulating water cooling, and the power and position of the fan are important. Based on years of operating experience, improvements are made by selecting domestically produced high-quality fans with reliable quality
The heating plate adopts a strip heating wire, which has an ultra long service life. Uniform and consistent heating ensures sample digestion parallelism
High temperature resistant microcrystalline glass panels are flat and smooth, easy to clean, and do not leave any hygiene dead corners.
