Double-Guarded Hot Plate Thermal Conductivity Tester
Published: 8/24/2021
A computer-controlled double-guarded hot plate system for steady-state measurement of thermal conductivity in insulation and related materials per GB/T 10294-2008 and ISO 8302:1991. It supports plate specimens and, with optional frames, powders and pastes for use in R&D, QA labs, and production environments.
Product Description
The DRH-300 is designed for steady-state thermal conductivity measurement using the guarded hot plate method in accordance with GB/T 10294-2008 and ISO 8302:1991. Full computer control minimizes human error and improves measurement repeatability.
Typical applications include plastics, fibers, foams, insulation boards, and refractory materials in plate form; with an additional specimen frame it can evaluate powders and paste-like materials. The system is suitable for producers of thermal and insulation materials, quality inspection departments, universities, and research institutes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Thermal Conductivity Range | 0.01–1 W/(m·K) and 0.1–5 W/(m·K) |
| Measurement Accuracy | <3% |
| Repeatability | <1% |
| Specimen Size | Dual specimens, 300 × 300 × (10–50) mm |
| Hot-Side Temperature Range | Ambient to 99.99 °C |
| Hot-Side Temperature Resolution | 0.01 °C |
| Cold-Side Temperature Range | 0–60 °C (optional: −5–60 °C) |
| Cold-Side Temperature Resolution | 0.01 °C |
| Calorimetric Power Supply Voltage | 36 V (resolution 0.1 mV) |
| Calorimetric Power Supply Current | 3 A (resolution 0.1 mA) |
| Control | Computer-controlled automatic testing with auto-calibration |
| Thickness Measurement | 8-point specimen thickness device |
| Specimen Pressure | Adjustable with constant-pressure mechanism |
| Operating Environment Temperature | 10–35 °C |
| Operating Environment Humidity | ≤80% RH |
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B6-101, Zhongnan High-Tech Intelligent Manufacturing Industrial Park, No. 10 Shuangma Street, Yuetang District, Xiangtan City, Hunan Province, China
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