Scope of Application

【Operating Instructions】

This instrument meets the technical specifications and requirements stipulated in National Standard GB/T 14402-2007 "Combustion performance of building materials and products - Determination of heat of combustion". It is suitable for testing the combustion heat value of building materials. The test method specified in this standard is used to determine the absolute heat of combustion of test products, regardless of their form.

YS-RZ-1 Building Material Combustion Heat Value Tester

【Scope of Application】
This instrument meets the technical specifications and requirements stipulated in National Standard GB/T 14402-2007 "Combustion performance of building materials and products - Determination of heat of combustion". It is suitable for testing the combustion heat value of building materials. The test method specified in this standard is used to determine the absolute heat of combustion of test products, regardless of their form.

【Compliance Standards】

• GB/T 14402-2007

• ISO 1716-2002

【Instrument Features】

1. Temperature Differential: Meets the national standard requirement that "at the endpoint, the inner vessel temperature is approximately 1K higher than the outer vessel."

2. Microcomputer System: Retains all functions of the microcomputer system. It can run general software for other tasks while simultaneously starting the calorimeter measurement system. The system can automatically calibrate the water equivalent (heat capacity) of the calorimetric system and measure the heat generation of substances. (Note: Computer and printer are supplied by the user; host software, router, and network cable are included with the equipment).

3. Stirring System: The inner vessel uses an electric stirrer with vane blades, while the outer vessel uses a submersible electric stirrer, ensuring more uniform and convenient mixing. The instrument uses a fuse-type cotton thread ignition method.

4. User Interface: Operates on Windows 7 and above. Features full Chinese character prompts and human-machine interaction throughout the process. It is easy to learn and use; simply follow the prompts to complete the test.

5. Temperature Control: Automatically controls the outer jacket water temperature at the set point, ensuring that actual temperature changes do not affect the cooling correction, resulting in more accurate measurements.

6. Cooling Correction: Automatically adjusts inner and outer vessel temperatures. Adopts a cooling correction system, water circulation system, and software automatic error compensation system to minimize cooling correction errors and improve measurement accuracy.

• (Note: The two parameters mentioned here are optional; please inquire for details).

【Technical Specifications】

1. Measurement Principle: Oxygen Bomb Calorimetry

2. Measurement Time: 25 - 30 min

3. Precision: RSD ≤ 0.1%

4. Temperature Resolution: 0.001℃

5. Ignition Time: 3 - 10s

6. Ignition Voltage: AC 24V

7. Heat Capacity: Approx. 10320 J/K

8. Outer Vessel Capacity: Approx. 50L

9. Inner Vessel Capacity: Approx. 2.1L

10. Operating Environment: 23 ± 2℃, Relative Humidity 40 - 60% RH

11. Power Supply: AC 220V ± 10%, 50Hz

12. Main Unit Power: 300W

13. Oxygen Bomb:

• Capacity: 300ml

• Oxygen Filling Pressure: 2.5 - 3.8 MPa

• Pressure Resistance (Hydraulic): 20 MPa

• Weight: Approx. 2.5 Kg

14. Calorimeter Bomb Capacity: (300 ± 50) mL

15. Calorimeter Bomb Pressure Resistance: 21 MPa

16. Crucible: Φ25mm, Height (14-19)mm, Wall Thickness 1mm

17. Timer: Accuracy 0.5s

18. Max Power Consumption: 0.5 KW

19. Ambient Temperature: (10 - 35)℃, Humidity ≤ 80%

20. Instrument Heat Capacity: Approx. 10000 J/K

21. Heat Capacity Repeatability Error: ≤ 0.2%

22. Temperature Measurement Range: (4.5 - 42)℃

23. Temperature Resolution: 0.001 K

24. Inner Vessel Volume: 2000 ml

25. Oxygen Bomb Sealing: Oxygen filling pressure 2.8 - 3.2 MPa, no leakage

26. Stirring Power: 3W

27. Stirring Speed: Inner Vessel (375 r/min)

【Performance Indicators】

1. Casing: Steel plate body with electrostatic spray treatment.

2. Ignition Detection: Automatic detection of broken ignition wire and automatic ignition.

3. Auto-Extinguish: Automatic extinguishing during the test process.

4. High Precision Sensing: High-precision PT100 temperature sensor for measurement; 16-bit PLC temperature module transmission ensures data reliability and accuracy.

5. Alarm System: Abnormal test alarm prompts.

6. Control & Display: Parameter setting and display; Test status and fault display/query.

7. Data Acquisition: Temperature data collection and storage; Screen monitoring with real-time temperature curve display.

8. History Query: Historical curve and data query.

9. Data Export: Data files can be exported via USB / externally printable.

10. Connectivity: Control box equipped with USB/RS232 serial port; optional external desktop/laptop control. High automation, safe and reliable testing process, easy operation.

11. Bomb Wall Thickness: Greater than 1/10 of the bomb's inner diameter.

12. Lid Design: The lid can hold the crucible and electronic ignition device. The lid and all sealing devices can withstand an internal pressure of 21 MPa.

13. Material: The bomb inner wall is made of SUS304 stainless steel, capable of withstanding erosion from combustion products and resisting pitting and intergranular corrosion caused by acidic substances generated during combustion.