D300FX series dual specimen thermal conductivity meter

Instrument Description

       Thermal conductivity is an important parameter for measuring the thermal conductivity and insulation performance of heat-resistant materials. The thermal conductivity of a substance depends on many factors such as its composition, porosity, water absorption, moisture content, internal structure, and the environment and temperature during thermal conduction. The precise measurement of thermal conductivity is of great significance for environmental engineering, construction engineering, industrial engineering, scientific research, energy conservation, and other fields.

       The D300FX series intelligent protective hot plate method thermal conductivity tester developed by our company adopts a double specimen structure, which conforms to the national standard for thermal conductivity measurement by protective plate method GB10294-2008 (measurement of thermal insulation materials' steady-state thermal resistance and related characteristics), and also conforms to GB/T3399-1982 (plastic thermal conductivity test method - thermal protection plate method) and GB/T10801 (polystyrene foam for thermal insulation). The D300FX series thermal conductivity meter adopts advanced structural design and insulation design, electronic circuit system, and software with temperature automatic calibration function. Through a simple and fast computer interface, the instrument achieves fully automatic control, data acquisition and processing, calculation and display of thermal conductivity coefficient, and data printing and output. It has the advantages of fast measurement speed, high accuracy, automation, and environmental protection. This instrument can be widely used in the production enterprises of heat-resistant and insulation materials, relevant quality inspection departments and units, universities, research institutes and other scientific research units.

Instrument features

       ① Compliant with GB/T 10294-2008 and international standard ISO 8302-1991

       ② The temperature acquisition module adopts an independently designed chip electronic component and the latest integrated circuit technology, with performance far superior to industrial instruments such as PLC

       ③ PID self-tuning function ensures optimized temperature control accuracy

       ④ Accurate mathematical correction models and calibration techniques make the power loss of the hot plate zero

       ⑤ The thermal conductivity temperature curve tested with a reference plate is completely consistent with the data in the reference plate

       ⑥ At the same average temperature, there is a linear relationship between heating power and the temperature difference between the cold and hot plates

       ⑦ It can measure both flat specimens and powder/particle samples

       ⑧ The test results have no requirement for sample thickness, and the test results of the same sample with different thicknesses are consistent

       ⑨  Measurement and control software based on LabView, fully functional and easy to operate

       ⑩  Automatically determine whether the steady-state conditions are met, with a single measurement time of only 60 minutes

Technical indicators

Power supply voltage: AC 220V ± 5%

Power: 1.0-2.0kW

Thermal conductivity measurement:

Measurement range: 0.001-2.2 W/(m · K)

Repeatability: ± 1.0%

Accuracy: ± 2.5%

Temperature measurement:

Temperature range (varies by model):

D300FX type: Cold plate: 35-95 ℃, Hot plate: 35-99.9 ℃

D300FX-D0 type: Cold plate: 0-95 ℃, Hot plate: 30-99.9 ℃

D300FX-D15 type: Cold plate: -15~95 ℃, Hot plate: 10~99.9 ℃

D300FX-D30 type: Cold plate: -30~95 ℃, Hot plate: -10~99.9 ℃

Temperature resolution: 0.01 ℃                                                                        

Temperature accuracy: ± 0.1 ℃

Single measurement time: ≤ 60 minutes (fastest ≤ 40 minutes)
Environmental conditions: 

Room temperature: 22 ± 3 ℃ Humidity: 20-60% RH

Requirements for flat test specimens:

Horizontal dimensions: 300mm × 300mm                                                           

Thickness: 5-50mm

Flatness:<0.5mm

Hardness: Suitable for various hard and soft materials

Dimensions: 820 × 610 × 1160 mm

Weight: Approximately 120kg