Product Name: Automatic Chinese character calorimeter 
 Product Type: ZDHW-4000A 

 Keywords: inspection of coal, coal analysis, coal testing equipment, coal quality analysis equipment, coal quality testing equipment 
 Scope of application 
 The coal analyzer for the determination of coal (coal test, coal analysis, coal testing equipment, calorific value of coal quality analysis instruments), calorific value, oil and other flammable solid or viscous liquid substance, in line with GB/T213-2003 Determination of calorific requirements of the coal. 

 Features and technical parameters 

 The use of advanced microcontroller system to control the instrument, and automatically adjusts the water temperature to achieve automatic water filling, automatic quantitative water, auto mixing, auto-ignition. Uses a unique cooling correction system, circulatory system and software automatically, error making it up, the system also have the outer barrel storage capacity, good thermal stability, and other functions, the Chinese menu-driven user interface, simple structure, intuitive and easy to learn, easy to operate, stable and reliable performance. taken inside and outside the tube optically isolated anti-jamming capability. The unique foam insulation technology, without influence of external temperature during the experiment. 
 Temperature measurement range: 0 ℃ -65 ℃ 
 Temperature measurement resolution: 0.0001 ° C 
 Heat measurement accuracy: better than 0.2% (acid) 
 Power supply: AC220V ± 10% 50Hz 
 Quantitative error: ≤ ± 1g 
 Heat capacity: about 10450J / K 
 Test time: 15min 

 Standard configuration 

 Oxygenation instrument one, a pressure reducer, oxygen bomb, stupid potassium acid bottle, stainless steel crucible five oxygen bomb seal in the two sets of ignition wire Volumes I and II, micro-printing paper vols. 

 Coal calorimeter - the quality of coal calorimeter (heated oxygen bomb calorimeter) series 

 Precision microcomputer fully automatic amount the calorimeter ZDHW-8000 (may be dual control of the coal testing equipment, coal analysis instruments) 

 Microcomputer automatic calorimeter ZDHW-6000 (vertical coal testing equipment, coal analysis instruments) double control 
 Microcomputer automatic calorimeter ZDHW-5000 (horizontal coal testing equipment, coal analysis instruments) double control 
 Fully automatic Chinese characters calorimeter ZDHW-4000 (horizontal coal testing equipment, coal analysis instruments) 
 ZDHW-4000A (vertical coal testing equipment, coal analysis instruments) 
 The multifunction Chinese characters calorimeter ZDHW-3000 
 Intelligent Chinese characters calorimeter ZDHW-2008