KHC0D-12Z standard COD digestion device COD digestion instrument

KHC0D-12ZType standardCOD digestion device, using microcomputer technology, can12a250MLconeSimultaneously heat and reflux the bottle for digestion. *FollowHJ828-2017 National Standard Method, ensure boiling for 2 hours.

standardThe COD digestion device adopts a specially designed heating plate panel,Microcrystalline glass countertop, overall structure, reasonable isolation design, easy installation and replacement of electric furnace plates,Heat evenly during heating, with fast heating and cooling rates. At the same time, accidentally dripping the sample solution makes cleaning more convenient.

standardThe COD digestion device can set the digestion time, display the digestion time countdown, and automatically stop heating after digestion is completed. The instrument fan continues to work to assist in sample cooling and can be left unattended.

National Standard LawCOD digestion reflux device,Another innovation that changed ordinary standardsFixed COD digesterheatpower，The situation of excessive boiling in summer and insufficient boiling in winter. adoptThyristor controlHeating uptimecan be arbitraryregulation，Ensure boiling effect.

　KHC0D-12ZType standardCOD digestion device, using glass burr reflux tube instead of spherical reflux tube, andReplacing circulating water cooling with air and water cooling technology makes operation more convenient. The cooling part is mainly completed by burr condensation tube water cooling and fan air cooling. The upper part of the condensation tube is a spherical bubble, which has a better cooling effect. The catalyst is added here to prevent the instantaneous volatilization of light components in the sample and can be covered with a volatilization cap. The following section isThe 'burr' shape, consisting of multiple opposing 'cold bubbles' extending from the condenser wall on a flat surface, increases the cooling area compared to a simple spherical condenser and can block the passage of volatile substances and vapors, as well as partially spherical refluxThe dual function of cooling water inside the pipe and fan inside the machine.

KHC0D-12ZType standardThe COD digestion device ensures the reflux cooling of the sample, and the inserted burr reflux tube makes it safer and more stable to use.

Technical specifications:

country Standard: New StandardHJ828-2017

Measurement range:5～700mg/L； Determination after dilution of 700mg/L to 10000 mg/L water sample

Dissolving time:1 minute to 2 hours and 30 minutes (users can choose their own heating time)

Measurement error: Potassium hydrogen phthalate standard solution（The relative standard deviation of 500mg/L is not greater than 5.0%;

Industrial organic wastewater（The relative standard deviation of 500mg/L is not greater than 8.0%

Ambient temperature≤ 40℃

Cooling method: Dual fan cooling and heating3Bubble condenser tube water cooling completed

Number of Dissolved Samples:12a250mlconeShaped bottle, microcrystalline platethreeHeating digestion makes sampling very easy to clean.

Heating power: ＜2400W（AC 220V，50HZ）

Heating table: Microcrystalline glass heating table, overall structure of heating plate, overhead heating, easy to remove for replacement and maintenance.

Instrument size:452*372*620mm（H）

Note: KHCOD-8Z national standard COD digestion reflux device (8 250ML conical flasks)