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Your location: Home > Related Articles > Precautions for Dual Plate Thermal Conductivity Tester

Precautions for Dual Plate Thermal Conductivity Tester

Author:QINSUN Released in:2023-08 Click:92

The double plate thermal conductivity tester is a test equipment independently developed and produced by qisnun Precision Electromechanical Technology Co., Ltd. This is a cost-effective and comprehensive after-sales service. It can test plastic, rubber, glass, fiber, benzene board, extruded board and aerated concrete. , Hollow glass, wood, various insulation materials and other homogeneous plate materials, and can measure the thermal conductivity of various materials such as granular materials, bulk materials and soft materials.

Test principle:

Based on the principle of stable one-way heat conduction, when the upper and lower sides of the sample are at different stable temperatures, the flow of heat through the effective flux the heat transfer surface of the sample is measured and tested The temperature difference and the thickness between the two surfaceses of the sample were used to calculate the thermal conductivity.

Precautions:

1. Add liquidid medium into the constant temperature tank to immerse the tube in evaporation in the medium, the liquid The surface is below the work surface and above the tubes of the internal evaporator. During use, the medium slowly volatilizes and the liquid level drops. When the liquid level is lower than the evaporation tube, the medium should be added in time. In particular, it should be noted that the liquid level in the tank will be lowered when the medium in the tank is circulated in a vessel which requires a constant temperature. Height, so that the evaporation tube is exposed to the surface of the liquid, at this time, liquid should be added to make the evaporation tube immersed in the medium. It is strictly forbidden to supply the restank without liquid medium.

2. Place the test box in a vertical direction during the test, and the card slot of the test box should not be too tight for the next step.

3. The selection of the liquid medium in the tank should follow the following principles:

1) Antifreeze is used for the general liquid medium;

2) When the working temperature is (at 85-95)℃, the liquid medium can be 15% aqueous glycerin solution;

4. When using alcohol for low temperature test, avoid open flames so as not to burn the tank at constant temperature.

5. Do not immerse the low temperature thermostat in water. Otherwise, it may cause a short circuit or electric shock.

6. Do not tilt or overturn the test chamber. In order to ensure the accuracy of the measurement data, the instrument should be in a quiet, windy and dark place during the test, andavoid air conditioning and heating equipment.

7. Attention should be paid to the compression of the specimen. Do not over compress and affect the accuracy of the test. After the sample thickness measurement is completed, please turn off the thickness gauge.

8. During the test, please do not use the test computer for other work, and do not delete or change the names of files and directories created by our company, otherwise the software may not being able to run.

9. During the test, please provide special guards. If there is any unexpected situation, please exit the test immediately and turn off the host.

10. Do not disassemble, repair or modify yourself. Failure to do so may result in fire, electric shock, or injury. Please consult our company\'s customer service when repairs are needed. Do not place foreign objects such asmetallic objects such as nails or needles in space. Failure to do so may result in electric shock or injury.

11. Do not use a power source other than 220V. Using a power source other than 220V once or using it with other electrical appliances Using the same outlet or using a power cord that has been modified without authorization may cause hazards. fire or electric shock.

12. Do not move the instrument during the test, otherwise the test data may be inaccurate.

13. When dust accumulates on the insertion part of the power cord plug, please wipe it with a dry cloth. Failure to follow this instruction may cause a fire.

14. When unplugging the power cord plug, do not pull the wire to operate, but pull it directly while holding the power plug.iment at the front. Failure to do so may result in electric shock or short circuit resulting in fire.

15. Do not turn the thermostat upside down, otherwise it will damage the internal parts.

16. When the operating temperature of the constant temperature bath drops from 60°C to 15°C, please do not start the compressor immediately to cool the constant temperature bath. The temperature of the liquid in the refrigerator drops to room temperature and then restarts the refrigeration.

Shanghai Fanbiao Textile Testing Technology Co., Ltd., as an enterprise integrating R&D, manufacturing, sales, training and service, is committed to continuously providing more testing instruments. test in the market, providing long-term textiles, test instruments for leather, combustion, automotive interior materials, environmental weather aging, masks and protective clothing, etc., can also accept non-standard customization. Before purchasing, we can carry out targeted tests according to customer requirements to ensure that the purchased instruments are applicable.

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