Standards:

Applications:

Product Information:

This instrument is suitable for measuring the calorific value of solid and liquid combustible materials in industries and research or educational institutions, including biomass fuels, waste-derived fuels, coal, petroleum products, cement raw meal, grains, and animal feed.It is widely applicable in power generation, coal, metallurgy, petrochemical, coal chemical, environmental protection, cement, papermaking, geological exploration, agriculture and animal husbandry, pharmaceutical research, and education.

Applicable Standards：

GB/T 213-2008 — Determination of Calorific Value of Coal
GB/T 384-2025 — Determination of Calorific Value of Hydrocarbon Fuels — Oxygen Bomb Calorimeter Method
JC/T 1005-2006 — Determination of Calorific Value of Cement Black Raw Meal
ASTM D5865-2010 — Standard Test Method for Gross Calorific Value of Coal and Coke
GB/T 30727-2014 — Determination of Calorific Value of Solid Biomass Fuels from Waste
ISO 1928:2009 — Solid Mineral Fuels — Determination of Gross Calorific Value by the Bomb Calorimetric Method and Calculation of Net Calorific Value

Performance Features：

Electronic Refrigeration Technology
The electronic refrigeration system minimizes the influence of ambient temperature fluctuations, ensuring that the temperature difference between the inner and outer vessels remains within the specified range. The instrument is suitable for continuous long-term operation.
Fully Automatic Test Process
The oxygen bomb features automatic lifting and lowering, automatic oxygen charging pressure detection, automatic gas-tightness detection, automatic determination of the inner vessel water volume, automatic adjustment of the inner vessel water temperature, and automatic completion of the test. It supports both ignition wire and cotton thread ignition methods. The inner vessel adopts a circulating water system, while the newly designed stainless-steel oxygen bomb is easier to install and remove. Combined with the metal inner vessel, it enables rapid and direct volume determination. The optimized inner vessel stirring system provides faster heat transfer and effectively reduces testing time, with a single-sample testing time of less than 15 minutes. The instrument is equipped with a semiconductor temperature-controlled thermostatic water tank, which provides more precise water temperature control, lower overall power consumption, and lower noise compared with conventional compressor-based refrigeration water tanks.
High Testing Speed and Measurement Performance
Fast Test Method: ≤12 min
Standard Test Method: ≤15 min
Heat Capacity Stability: <0.2%
Precision: <0.1%
Temperature Resolution: 0.0001 K
Compact and Reliable Design
The instrument maintains excellent performance and reliability even under harsh environmental conditions. It features a compact structure and attractive appearance, while installation and maintenance are simple. The low failure rate, compact size, extensive use of precision molds, and high manufacturing precision ensure reliable operation.
High Repeatability and Reproducibility
The repeatability and reproducibility of calorific value measurements comply with the requirements of GB/T 213-2008. The instrument provides a high level of automation, automatically determines the inner vessel water volume using the built-in volumetric system, automatically controls the temperature difference between the inner and outer vessels, and completes the entire test process automatically.
Windows-Based Control System
The instrument adopts a Windows operating system and supports multi-instrument control from a single computer. Tests conducted on different instruments do not interfere with each other, ensuring stable and reliable software operation.
Comprehensive Data Processing
The software provides comprehensive data processing functions, allowing users to conveniently query historical test data, daily test data, parallel sample data, and other test records.
Imported Stirring Motor
An original imported stirring motor provides uniform and stable stirring with reliable performance and strong resistance to interference. The instrument supports automatic water filling, automatic water temperature adjustment, automatic water volume determination, automatic stirring, and automatic ignition, effectively reducing errors caused by manual operation.
Unique Isothermal Circulation System
The instrument adopts a unique isothermal circulation system with a color display for real-time monitoring of the actual inner and outer vessel temperatures. Real-time temperature adjustment is available to further improve the accuracy and stability of test results.

Technical Specifications：

Item	Specification
Operating Ambient Temperature	0–60°C
Precision	≤0.1%
Temperature Resolution	0.0001 K (Original Imported Temperature Sensor)
Oxygen Bomb Capacity	300 mL
Oxygen Bomb Pressure Resistance	30 MPa
Power Supply Voltage	220 ± 10% V, 50 Hz
Ambient Humidity	≤85% RH
Heat Capacity Stability	Heat capacity variation ≤0.20% within 3 months
Accuracy	Within the uncertainty range of the standard sample
Test Time	Fast Method: ≤12 min; Standard Method: ≤15 min
Power Supply	220 V ± 22 V, 50 Hz ± 1 Hz
Power Consumption	≤0.6 kW
Dimensions	900 × 600 × 500 mm