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Heat
Conductivity Coefficient Tester Steady State Method Heat Conductivity
Tester 220V |
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Product
Overview |
| The heat conductivity
coefficient tester is a professional instrument for accurately
measuring the heat conductivity coefficients of different
materials through the steady state method or heat flow meter
method. The steady state method is adopted to ensure high
measurement accuracy and reliable data results. The tester has
the advantages of high measurement precision, high testing speed
and wide application range and is suitable for the fields of
building materials, energy, chemical engineering, electronics,
scientific research, education and so on. |
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Product
Parameters |
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Power supply |
AC220V, 50/60Hz, 1-phase |
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Digital thermometer |
Measurement accuracy: 0.5%±1
digit |
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Digital stopwatch |
Time range: 0-100min
Minimum resolution: 1s
Precision: 10-5 |
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Measurement temperature range |
Room temperature-110˚C
(Maximum heating
temperature: 120˚C) |
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Heating voltage |
36V AC |
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Heat-dissipating copper plate |
Radius: 65mm (2.5in)
Thickness: 7mm (0.27in)
Weight: 815g (1.8LBs)
(All parameters are marked on each copper plate. The provided
values are for reference only.) |
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Test material |
Hard aluminum, rubber, air, etc. |
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Continuous working time |
>8 hours |
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Machine size |
39x45x42cm (15.3x17.7x16.5 inches) |
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Net weight |
20kg (44.1LBs) |
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Attention |
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1. Before use, wipe the surfaces of the
heating plate and cooling plate. Clean both end faces of the
sample and apply a small amount of silicone oil to ensure good
contact.
2. In the process of the experiment, before
the electric heating plate is removed, the power supply should
be turned off. When removing the heating cylinder, hold the
fixed shaft with your hand and rotate it to avoid hand burns.
3. After finishing the experiment, disconnect
the power supply and properly store the measurement sample. Do
not scratch the two ends of the sample to avoid affecting the
experimental accuracy. When the digital thermometer displays
unstable readings, check whether the thermocouple and all
contact points are in good condition.
4. During transportation and placement, the
instrument should be protected from strong vibration and impact.
5. When the instrument is not in use for a
long time, please cover it with a plastic bag to prevent
long-term exposure to humid air. The indoor air humidity should
be smaller than 80%.
6. When using the instrument, keep it away
from the areas with strong magnetic field sources.
7. When using the machine again after long-term
disuse, power on the machine and preheat it for 30 minutes
before operation. |
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Product
Features |
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Temperature and
Time Display
The
digital temperature displayer and time displayer are adopted to
clearly display the temperature and time in real time,
facilitating observation and adjustment. |
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Thermocouples
The thermocouples are used to achieve contact
measurement, effectively improving the measurement accuracy. The
thermocouples are simple in structure, stable and reliable.
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Control Panel
The
multiple control switches are integrated on the control panel,
control is easy and convenient, and the operating difficulty and
complexity are greatly reduced. |
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Heating Cylinder
The
heating cylinder is of an integrated structure, simplifying the
measurement model and reducing the error. The heating cylinder
is flexible and adjustable. |
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Fan
The fan is used to ensure the uniformity of
the temperature field, improve the response speed and stability
of temperature control and create a stable testing environment.
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Copper Plates
The
upper and lower copper plates have excellent thermal properties,
conveniently keeping the steady state condition. The copper
plates are high in mechanical strength. |
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Operation
Method |
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1. Use a customized measuring tool to
measure the essential physical parameters of the sample,
including the geometric dimensions and mass of the
sample and the lower copper plate. Measure these
parameters for multiple times and calculate the average
value. The specific heat capacity of the copper plate is
C=0.385KJ/(K.Kg).
2. Place the to-be-tested sample and
lower copper plate (heat dissipating disc) properly.
Adjust the three fine-tuning screws on the lower disc
bracket to ensure good contact between the to-be-tested
sample and the upper and lower copper plates. When
installing the cylinder and disc, ensure that the hole
for holding the thermocouple and the Dewar flask are
located on the same side. Before inserting the
thermocouple into the small hole of the copper disc,
apply silicone grease to it and insert it to the bottom
of the hole to ensure good contact between the
temperature measuring end of the thermocouple and the
copper disc. Insert the cold end of the thermocouple
into a mixture of ice and water.
3. Turn on the heating switch and set
the temperature of the upper copper plate according to
the instruction of the smart temperature controller.
Then heat the upper copper plate.
4. When the upper copper plate is
heated to reach the preset temperature, turn the signal
gating switch to (I) to measure the temperature of the
upper copper plate. When the upper copper plate's
temperature remains unchanged (as indicated by the
temperature display on the temperature controller),
record the current temperature (T1) of the upper copper
plate. Continue heating the upper copper plate, and
continuously transfer the heat to the lower copper block
through the sample. After a set period, when the lower
copper plate's temperature basically remains unchanged,
turn the signal gating switch to (II) to measure the
temperature (T2) of the lower copper plate, and record
the current temperature (T2) of the lower copper plate.
At this point, the system has reached the steady state
(the lower copper plate's temperature remains stable for
approximately two minutes).
5. Remove the sample and continue
heating the lower copper plate. When the lower copper
plate's temperature is about 10°C higher than the T2,
remove the cylinder to expose all the surfaces of the
lower copper plate to the air, and allow the lower
copper plate to cool naturally. Record the lower copper
plate's temperature values every 30 seconds until the
temperature drops to a specified value below T2. Plot
the T-t cooling rate curve of the copper plate (using
the adjacent T2 measurement data to determine the
cooling rate).
6. Calculate the heat
conductivity coefficient
λ
of the sample according to (S1-4).
7. Set different
heating temperatures for the upper copper plate. The set
temperature should be 30˚C higher than the room
temperature. Measure the heat conductivity coefficients
λ
of the sample at various temperatures. |
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Product
Display |
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Item Number (057286): 1 x Heat Conductivity
Coefficient Tester 220V |
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You can make
order with no worry.
Any concern just feel free to let us know, we'll reply in 24 hours in
normal condition.
Handling Time: Shipping is usually made in 1-3 business days after
payments cleared. Orders are processed from Monday-Friday; Not on the
weekends & public holidays.
Warranty: 6 months' warranty for the machines, not for the consumables.
We stand behind our products all the item, so even if your warranty
period has expired, you can still seek for service or technical support
from us with low cost. |
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