5E-C5808/5E-C5808J is the new generation calorimeter which is used to determine the calorifc value of solid and liquid combustibles including oil, coal, coke, foodstufs and biomass products. The calorifc value is a crucial characteristic for each substance, also the key point to calculate the price of coal, so it will directly afect the economic benefts of the customers. This technique is widely applied in power plants, coal mines, metallurgy, chemical industry, commercial inspection, scientifc research, etc.