How to operate a double plate thermal conductivity meter?

1.10 qualified specimens are placed in the sample basket and placed in the furnace chamber.

2.Connect the power cord, RTD, and ground wire.

3.Connect the water inlet pipe, outlet pipe and circulating water pipe.

4.Fill the thermostatic sink with water.

5.Turn on the power switch, the indicator light is on, and adjust the given value of furnace temperature and water temperature to the desired position (in water temperature control, the lower limit controls the compressor, the upper limit controls the heater, and the upper limit sets the temperature, and the lower limit sets the temperature).

6.Turn on the stirring switch, the indicator light is on, and the blender is working.

7.Choose according to your needs"Single cooling"，"Single heat"or"Hot and cold"。

a:"Single cooling"That is, the instrument only starts the refrigeration equipment, and when the given temperature is exceeded, the automatic refrigeration will stop automatically after the given temperature.

b:"Single heat"That is, the instrument only starts the heating equipment, and automatically heats up to a given temperature when it is lower than a given temperature.

c:"Hot and cold"That is, when the water temperature exceeds the given temperature, the instrument automatically cools, and when the water temperature is lower than the given temperature, the instrument automatically heats up to ensure that the water temperature is at the required temperature.

8.Plug in the line and check it again, turn on the power supply and heat up at a rate of 2 minutes.

9.When the temperature reaches the measured temperature, keep the temperature warm for 15 minutes (so that the temperature inside and outside the sample is consistent), flip the handle to make the sample basket quickly fall into ice water and cool for 5 minutes. If there is no ice water, the specimen falls into cold water.

Each time a specimen is dropped, the water is changed in order to keep the water temperature constant.

10.Remove the specimen from the water, wipe it clean, place the unglazed and white glazed specimen in a magenta alcohol solution, and check for cracks. The brown glaze specimen is placed in a dish with a thin layer of alumina fine powder, rolled back and forth several times or rubbed on the alumina powder several times with the specimen in hand, to check whether there is cracking (such as cracking, there is a white crack on the surface), and record it in detail.

The sample without cracking is placed in the furnace, heated to the next specified temperature (20 times apart), and the test is repeated until all ten samples are cracked.

11.During the experiment, pay attention to the changes in room temperature and water stability, and make a record.

When this resulting system is already in use, first turn on the power and then look at all the knobs to adjust properly.

Then connect the test of the thermal conductivity meter after it is connected, and look at both ends to check the thermal conductivity.

This kind of operation is specially operated, and the connector can be connected to the corresponding position after turning on the power.

To understand how the thermal conduction system works, you should learn more about this aspect of the introduction, or look for a professional situation.

If you don't understand, you can go to the store and ask the staff, and they will know a little bit better than you because they are professional.

Notes:1The liquid medium is added to the thermostat to submerge the evaporation tube in the medium, and the liquid level is lower than the workbench and higher than the internal evaporation tube.

In use, the medium will slowly volatilize to make the liquid level drop, when the liquid level is lower than the evaporation tube, the medium should be added in time, especially the attention is that when the medium in the tank circulates outside the container to be kept temperature, the liquid level height in the tank will be reduced, so that the evaporation tube is exposed to the liquid level, and the liquid should be added to make the closed evaporation tube immersed in the medium. It is strictly forbidden to energize the tank without liquid medium.

2.During the test, the test chamber is placed in the vertical direction, and the card slot of the test chamber should not be stuck too tightly, so as to facilitate the next operation.

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

1) The general liquid medium is antifreeze;

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

4.When using alcohol for low temperature test, it is necessary to prevent open flames, so as not to cause combustion in the thermostatic bath.

5.Do not immerse the cryostat in water. Failure to do so may cause a short circuit or electric shock.

6.Do not tilt or turn the chamber upside down. In order to ensure the accuracy of the measurement data, the instrument must be in a quiet and dark place and away from air conditioning and heating equipment.

7.Attention should be paid to the compression of the specimen, and do not over-compress the test accuracy. After the specimen thickness measurement is completed, please turn off the power of 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 work.

9.During the test, please arrange a special person to guard, if there is any unexpected situation, please immediately exit the test and turn off the power of the host.

10.Do not disassemble, repair or modify yourself. Failure to do so may result in fire, electric shock, or injury.

If you need to repair, please consult with our customer service. Do not put metal objects such as nails or needles between the gaps. Failure to do so may result in electric shock or injury.

11.Do not use a power supply other than 220V. If you use a power supply other than 220V, or use the same socket as other electrical appliances, or use a power cord that has been modified without authorization, it may cause 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 plug of the power cord, wipe it clean with a dry cloth. Failure to do so may cause a fire.

14.When unplugging the power cord, do not pull the cord and pull it out, but pull it out directly by holding the power plug on the front. Otherwise, it may cause electric shock or short circuit and cause disaster.

15.Do not turn the thermostat upside down as this will destroy the internal parts.

16.When the working temperature of the thermostat drops from 60 to 15, do not start the compressor immediately to cool down the thermostat, and the liquid in the thermostat must be replaced again or the temperature of the liquid in the thermostat must be reduced to room temperature before restarting the refrigeration.

Based on the principle of one-way stable thermal conductivity, when the upper and lower sides of the sample are at different stable temperatures, the heat flux through the effective heat transfer area of the sample and the temperature difference and thickness between the two surfaces of the sample are measured to calculate the thermal conductivity. It meets the high test requirements of the materials testing and research department for the thermal conductivity of materials. Fully automatic data collection, data processing, report printing, data storage.

The advantages of short measurement time, accurate data, good repeatability and high degree of automation.

Product use: The thermal conductivity tester mainly tests homogeneous plate-like materials such as plastics, rubber, glass, fiber, benzene boards, extruded plastic boards, foamed concrete, hollow glass, wood boards, and various thermal insulation materials, and can measure the thermal conductivity of various substances such as granular materials, bulk materials, and soft materials.

Technical parameters: 1. Thermal conductivity measurement display range: ( m?k);

2. Thermal conductivity measurement: 3%;

3. Repeatability of thermal conductivity measurement: 1%;

4. The temperature measurement range of different types of thermal conductivity testers:

Environmental conditions: room temperature: 15--30, standard temperature 20 is recommended, humidity: 0-90%RH, 40-60%RH is recommended

Procedure: Check the work before the test:

1: Check whether the total power supply voltage is within the normal range, AC220V 10%, and whether the front source air switch of the internal electric barrier is all closed.

2: Manually adjust the clamping force and force display of the specimen to the value required by the standard.

3: Check the water level of the water tank, the water level must be above the copper pipe in the water tank, the high water level does not exceed the upper and lower limit of the normal water level at the water inlet, it is recommended to use distilled water or purified water, do not use tap water.

4: Check to determine whether the holy grail inside the cabinet can operate normally, whether there is water leakage, air leakage, if so, then run after processing.

External Device Boot Procedure:

1: System power-on: Turn on the main power supply of the incoming line, close the main power supply air switch, power indicator: turn on the key switch on the operating panel of the plate thermal conductivity meter, and power on the system.

2: Installation of the specimen: After the completion of pretreatment, the specimen will be put into the test position on the left and right sides according to different materials and different treatment methods, and the clamping force will be adjusted to the display of the required force according to the installed specimen manually.

Clamp the specimen tightly. The thickness after clamping is measured and recorded with vernier calipers.

The flat plate thermal conductivity tester is mainly used to determine the thermal conductivity of non-metallic solid materials, which is used in construction, energy, environmental protection, chemical, medical, energy-saving and other industries. 1.Wide detection range; 2.

Testing standard: GB 10297-1998 intelligent plate thermal conductivity tester is mainly used to test the thermal conductivity of felt, board, brick, textile, ceramic fiber Kongxiaoqing and other refractory insulation materials at different temperatures. 1.

For refractory insulation materials before the bucket; 2.Testing standards: GB T 17911-2006 "Refractory Ceramic Fiber Products Test Method", YB T 4130-2005 "Refractory Thermal Conductivity Test Method (Water Flow Plate Method)", GB T 4130 "Shanghai Qianshi Refractories".

The surface processing flatness of the hot and cold plate is. The measured results show that when the temperature difference between the hot and cold plates is 23K, the inhomogeneity of the surface temperature of the hot plate and the tung large cold plate is the temperature difference between the two surfaces of the specimen. Double-plate thermal conductivity tester.

Flat plate thermal conductivity tester is used in construction, energy, environmental protection, chemical, medical, energy-saving and other industries to determine the thermal conductivity of non-metallic solid materials.

The intelligent plate thermal conductivity tester is used to test the thermal conductivity of refractory insulation materials such as felt, board, brick, textile, ceramic fiber and so on at different temperatures.