1. External 15 inch industrial control computer touch screen control, real-time display of test process and data.
2. Using semiconductor refrigeration, the cooling capacity can be determined based on the heat generation, and the instrument automatically adjusts the water temperature to maintain a relatively constant temperature, achieving continuous long-term testing and ensuring accurate results.
3. Design an internal cylinder level determination system, with automatic control of water injection and drainage. The water injection volume is highly accurate and the drainage is clean, ensuring consistent water volume in each internal cylinder and ensuring measurement accuracy of the system with a repeat error of less than 0.4g.
4. No need to lift the inner bucket, simple operation, easy maintenance, single oxygen warhead; It can automatically measure the resistance of the ignition wire and check whether the ignition wire is installed properly before testing.
5. Equipped with intelligent terminal functions, providing multiple network access methods, and combined with a data exchange center to achieve data sharing, real-time data can be uploaded to the management system.
6. Using high-precision temperature sensing probes, the temperature resolution reaches 0.0001 ℃; Make the overall integrated circuit stable and reliable.
7. The inner and outer bucket water systems are designed independently of each other and do not affect each other. The oxygen warhead is made of heat-resistant and corrosion-resistant 316 stainless steel, which has a long service life and is safe and reliable.
8. Fast testing speed, calibrated with standard benzoic acid configuration, all data tested, true and reliable, without using software calibration to change the test results.
9. Standardized pipeline design greatly shortens the pipeline, makes the pipeline more reasonable, and the experimental results more accurate.
10. Using a specially designed drainage interface, the instrument’s drainage and water exchange are more convenient and fast.
| Working power | AC (220 ± 10%) V, 50Hz, wide voltage adaptability, compatible with conventional civilian and laboratory power supply environments |
| Total power consumption | ≤ 0.2kW (i.e. 200W), low-power design, low energy consumption for long-term operation, extremely low load requirements for power supply lines |
| Temperature range | 5 ℃~35 ℃, covering the conventional temperature range required for coal calorific value measurement, suitable for core testing scenarios |
| Temperature resolution | 0.0001 ℃, with extremely high temperature sensing accuracy, can capture small temperature changes and provide accurate data support for heat generation calculation |
| Repeatability of heat capacity | RSD (range) ≤ 40J/K, good thermal capacity stability, small deviation in multiple test data, ensuring repeatability of results |
| Test time | About 12 minutes, the testing efficiency is high, and a single coal calorific value measurement can be completed in a short period of time |
| Thermal capacity | (9000～11000)J/K， The heat capacity range is suitable for the heat generation testing needs of most coal samples, without the need for frequent adjustments |
| Accuracy of measurement | Superior to the requirements of the GB/T213 standard for determining the calorific value of coal, the test results have high accuracy and comply with industry standards |
| Oxygen bomb pressure resistance | 20MPa， Oxygen bombs have strong pressure bearing capacity, meeting the high-pressure environmental requirements during coal sample combustion and ensuring test safety |
| Applicable ambient | Temperature: (15-28) ℃ (Environmental temperature change ≤ 2 ℃ during continuous repeated tests) Relative humidity: ≤ 85%, it is necessary to control the stable temperature and humidity of the environment to avoid affecting the testing accuracy |
| Dimensions | 650mm x 450mm x 450mm (length x width x height), with a moderate volume, making it easy to place and operate laboratory countertops |
| Weight | 55kg |
