Applications COD constant temperature heater is a classic method of sewage in the air cooling instead of water condensation with the determination of chemical oxygen demand of the heating reflux device, which uses a new thermostat, heating speed, temperature constant uniform characteristics. Simple, is an experimental means of instruments of new products. Potassium dichromate method with the existing backflow of COD compared. The instrument has low power consumption, small size, water, temperature performance, easy operation. Can be widely applied medicine, health, paper, food, water, chemicals, sewage treatment, petrochemical, metallurgy, printing and dyeing, water quality monitoring institutions and other industries. 

 Features energy-saving, small size, easy to operate, saving water, temperature performance, low power, heating up fast. 
 Specifications ◆ Adjustable temperature range: 32 ℃ ~ 399 ℃ 
 ◆ temperature accuracy: 2 ℃ 
 ◆ Heating time: (180 ℃) <30min 
 ◆ Time :0-99-hour period to set any settings 
 ◆ Max power consumption: 1KW 
 ◆ At the same time the heating of samples: 12 (based on customer needs can be developed) 
 ◆ Power supply: AC220V ± 10% 50HZ