LRH-II-300 Automatic Thermal Conductivity Tester Double Heat
Insulation Plate Method
1.Description:
This instrument is based on the principle of unidirectional stable
heat conduction. When the upper and lower surfaces of the sample
are at different stable temperatures, it measures the heat flow
through the effective heat transfer area of the sample, as well as
the temperature difference and thickness between the two surfaces
of the sample, and calculates the thermal conductivity. It meets
the high-precision testing requirements of material testing
research departments for the thermal conductivity of materials. It
mainly tests plastics, glass, fibers, foams, insulation materials,
etc. It is widely used in material analysis and testing in
universities, research institutions, quality inspection
departments, and production factories.
2.Standard
GB/10294-2008 (Determination of Steady-State Thermal Resistance and
Related Properties of Thermal Insulation Materials - Protective
Heat Plate Method)
GB/T 3399-1982 (Test Method for Thermal Conductivity of Plastics -
Heat Insulation Plate Method)
GB/T 3139-2005 (Test Method for Thermal Conductivity of
Fiber-Reinforced Plastics) (Test Method for Thermal Conductivity of
Fiberglass Reinforced Plastics).
The requirements for measuring the thermal conductivity of
polyurethane rigid foam materials in GB/T10801.1-2002 (Insulation
Polystyrene Foaming Plastics)
The requirements for measuring the thermal conductivity of extruded
polystyrene foam plastic (XPS) in GB/T10801.2-2002 (Thermal
Insulation Extruded Polystyrene Foam Plastic)
GB/T 3139-2005 (Test Method for Thermal Conductivity of
Fiber-Reinforced Plastics)
The requirements for measuring the thermal conductivity in GB/T
17794-2008 (Flexible Foam Rubber and Plastic Insulation Products).
3.Feature:
1. Automatic thickness measurement: Utilizing high-precision
displacement sensors for measurement and connecting to a computer
for automatic thickness measurement, thereby reducing human error.
2. Automatic Pressurization System: The system automatically
applies pressure, enabling tests to be conducted under various
pressure conditions to measure the thermal conductivity. This
method is more scientific, data-LRiven, and has higher
repeatability compared to manual pressure application.
3. Using dual-platen detection, the accuracy is even higher.
4.Technical Parameter.
| Thermal Conductivity Range | 0.001~3.000 W/(m·K) |
| Measurement Accuracy | ±3% |
| Sample Specifications | |
| - Dimensions | Dual specimen: 300 × 300 × (10-50) mm |
| - Flatness | < 0.05 mm |
| Temperature Control | |
| Hot Surface | |
| - Range | RT ~ 100°C |
| - Resolution | 0.01°C |
| - Accuracy | 0.05°C |
| Cold Surface | |
| - Range | 0 ~ 60°C |
| - Resolution | 0.01°C |
| Automation & Reporting | Computer-controlled testing with automated data processing, report
generation, and printing |
| Thickness Measurement | |
| - Method | High-precision displacement sensor |
| - Range | 0-50 mm |
| - Resolution | 0.01 mm |
| Pressure Control | |
| - Function | Automatic pressure application for multi-condition testing |
| - Range | 0-1000 N (adjustable) |
| - Resolution | 0.1 N |
| Temperature Difference | |
| - Default Setting | 20°C |
| - Adjustable Range | 15-25°C (user-configurable) |
