Microcomputer Fully Automatic Building Material Calorific Value Tester

Microcomputer Fully Automatic Building Material Calorimeter Microcomputer Fully Automatic Building Material Calorimeter

Technical Features:

1. Utilizes an intelligent MCU to form an embedded system, featuring simple structure, reliable performance, and strong anti-interference capability.

2. Experimental steps such as filling, discharging water, setting water level, stirring, ignition, temperature collection, calibration, calculation, and printing are automatically completed, avoiding human error and improving accuracy.

3. Employs calibration technology to make the instrument relatively lenient in environmental requirements, enhancing test accuracy while ensuring long-term operational stability.

III. Working Principle

A 0.9~1.1g sample is placed into a heat-resistant, corrosion-resistant crucible, which is then positioned in an oxygen bomb filled with 2.8~3.2 MPa oxygen. The bomb is placed in the inner chamber of the calorimeter, which contains a fixed amount of distilled water. The heat released by the combustion of the combustible material heats the distilled water. Based on the rise in water temperature and the heat capacity of the calorimetric system, the calorific value of the combustible material is calculated.

IV. Technical Specifications

Heat Capacity: Approximately 10500 J/K               

Oxygen Bomb Capacity: 300ml

Oxygen Filling Pressure: 2.8~3.2  MPa

Pressure Resistance: Hydraulic pressure 20MPa

Weight: 2.5 Kg

Dimensions: ф86.2ⅹ181 mm

Temperature Range: 0~40 ℃

Response Time: < 4 S

Resolution: 0.0001 ℃

Linearity: <0.08% per 5℃ temperature rise range

Temperature Measurement Error: Accuracy ±0.003℃ per 5℃ temperature rise range

Power Supply Voltage: AC220V±10%

Humidity: ≤80%

Power: 30W

Ignition Voltage: AC24V

Ignition Time: 5S