Calorific Calorimeter

Specifications ZDHW-5 Calorific Calorimeter is widely used to test the caloric value of flammable objects. It is a complete automatic equipment

  Product Description     Calorific Calorimeter Brief Introduction
   ZDHW-5 Calorific Calorimeter  is widely used to test the caloric value of flammable objects. It is a complete automatic equipment with large display screen and certified GB/T213.
    ZDHW-5 Calorific Calorimeter  is special designed for test caloric value of coal, it can calculate the gross calorific value and net calorific value.

Features of ZDHW-5 Calorific Calorimeter :
     Complete automatic, auto stir, ignite, display status of process, alarm and print the result.
     High test accuracy, information can display directly.
     Easy to operate, stable performance.
     Adopts the most advanced clock chip, can display time, date, week. It can also record the test time and print it on the result of test. Clock system works even there is no electricity.
     Auto calculate the average value when there is more than 5 times data.


Calorific Calorimeter Working Principle
     ZDHW-5 calorimeter can test the calorific value of flammable objects both in high pressure oxygen and vacuum condition.
Under High Pressure Oxygen Condition:
     Put samples in hot-corrosion-resistant metal crucible.
     Put this crucible in oxygen bomb and seal it.
     Charge oxygen in the bomb until the pressure reach 3.0Mpa
     Put oxygen bomb in and turn on the calorimeter, burn the sample. The heat will pass to the water in cylinder. Calorimeter can calculate the calorific value of samples according to measure the water temperature, cylinder and bomb.

Calorific Calorimeter Main Specification

Heat Capacity		10500 J/K
Oxygen Bomb	Capacity	300 ml
	Oxygen Pressure	2.8~3.0 Mpa
	Water Pressure	20 Mpa
	Weight	2.5 kg
	Dimension	Φ86.2*181 mm
Outer Cylinder Capacity		17 L
Inner Cylinder Capacity		2.1 L
Display Range		0.000~65.000 ℃
Response Time		<1 s
Resolution		0.001 ℃
Linearity		<0.08% (Heating Rate 5℃)
Temp Accuracy		0.003℃ (Heating Rate 5℃)
Working Voltage		AC:220±10%V
Operating RH		<80%
Power		30 V W
Ignite Voltage		AC:24V
Ignite Time		5 s
Total Weight		21.5 kg

Calorific Calorimeter Structure and Accessories
ZDHW-5 Calorific Calorimeter is composed of shell, outer cylinder, inner cylinder, stirrer, oxygen bomb and so on.
Outer cylinder is made of double shell stainless steel, the stirrer can adjust water temperature. There is also water inlet and outlet to adjust the water temperature and water level.
Inner cylinder is also made of stainless steel, the cross section is oval. We special processed the surface to reduce the heat radiation and heat exchange.
There is stirrer and thermometer hold designed on the top cover. Operator stick the temperature detector in the hole to test the temperature.
Stirrer is composed of mini electric motor, stir vane and stirring shaft. The stirring speed is stable.
Inner cylinder frame is made of plexiglass or bakelite.
Oxygen charger is special designed to work with calorimeter, it can completely avoid splash during the charging. The charging speed can be adjusted. It is very easy to operate.     Packaging & Shipping   Calorific Calorimeter  international standard packing