ZDHW-5A Microcomputer Fully Automatic Calorimeter

ZDHW-5A Microcomputer Fully Automatic Calorimeter

Adopting standards:

GB/T213-2008 "Method for determination of calorific value of coal", GB/T483-2007 "General determination of test methods for coal analysis", GB/T384-1981 "Method for determination of calorific value of petroleum products", GB/T30727-2014 "Method for determination of calorific value of solid biomass fuels" GB/T14402-2007Combustion performance of building materials and products - Determination of calorific value of combustion》JC/T1005-2006 "Method for determination of calorific value of cement black raw materials"ASTM D5865-13 "Standard Test Method for Gross Heating Value of Coal and Coke", ISO1928-2009 "Solid Mineral Fuel - Determination of Total Value and Calculation of Net Heating Value by Oxygen Bomb Calorimeter" CEN/TS 14918Method for determining the calorific value of solid biofuels》The BS SN 15400-2011Solid Recycling Fuel - Heat Generation Test》The IS：1350-1970Methods for determination of coal and coke》.

Scope of application:

The microcomputer fully automatic calorimeter is mainly suitable for detecting the calorific value of solid or liquid combustible substances such as coal, petroleum, chemical, food, wood, etc. in industries or departments such as power, coal, paper, petrochemical, cement, agriculture and animal husbandry, medicine, scientific research, and teaching.

Performance characteristics:

■Unique ultra-high bit analog-to-digital conversion technology: This product uses a 24 bit analog-to-digital converter, which provides higher accuracy and precision.

■useCompressor refrigeration technology adopts domestic "circulating water cooling technology" to quickly return the outer cylinder water temperature to near the starting value, reduce the cooling correction factor, and make the measurement results more accurate.

■Windows system or above interface: usingThe object-oriented software design technology can connect multiple instruments to form an analysis system.

■Maintaining all the functions of the original microcomputer system, it can run general software for other transaction processing, and at the same time, starting the calorimeter measurement system can automatically calibrate the energy equivalent (heat capacity) of the calorimeter system to measure the heat generation. Input data such as sulfur, total water, analyzed water, hydrogen, etc., to convert and print out data such as cylinder heat generation, high-level heat generation, low-level heat generation, etc.

■Internal device: Imported mixing motors are used internally to drive sheet-like blades for constant temperature mixing, and submersible electric mixing is used for the mixing of the outer cylinder, making the mixing more uniform and convenient. The instrument adopts a fused cotton thread ignition method.

■High degree of automation: By using a water quantification device and combining it with an automatic water circulation system, the water volume in the inner bucket can be accurately quantified without the need for manual weighing and adjusting of water temperature. This avoids errors caused by human factors during the operation process, reduces the labor intensity of operators, shortens testing time, and improves work efficiency.

Technical indicators:

■Heat capacity: approximately 10450J/K

■Accuracy: The test results are within the allowable range of the standard sample

■Thermal capacity stability: Thermal capacity change within three months ≤ 0.20%

■Thermal capacity precision: ≤ 0.1%

■External capacity: approximately 50L

■Internal capacity: approximately 2.1L

■Refrigerant cylinder capacity: approximately 5L

■Temperature range: 0-40 ℃(Each measurement of room temperature change should be ≤ 1 ℃) Relative humidity should be ≤ 80%

■Measurement error:<0.2%

■Test time: ≤ 15 minutes

■Temperature resolution:>0.0001 ℃

■Power: 0.68KW

■Power supply voltage: AC220V ± 15% 50Hz

Standard configuration: ZDHV-5A host/cooling host/Lenovo brand computer/laser printer