Thermal Conductivity Meter (Heat Flow Method)
Published: 6/3/2025
The DRH300 series measures thermal conductivity and thermal resistance of insulating boards, soils, ceramics, plastics, and similar materials using a dual heat-flow sensor, steady-state method. It supports automated temperature control, data acquisition, analysis, and report generation in compliance with ASTM C518, ISO 8301, and GB/T 10295 standards.
Product Description
The DRH300 thermal conductivity meter is designed for fast, repeatable measurement of low to moderate conductivity materials using the steady-state heat flow method. Dual heat-flow sensors and precise plate temperature control enable rapid stabilization and short test cycles suitable for QC and process control.
The system automates plate movement, thickness measurement, temperature programming, data acquisition, and analysis, streamlining sample preparation and testing. Typical applications include building insulation, filled and powdered materials, gypsum and fiber boards, rubber, plastics, ceramics, and other solid materials within the stated conductivity range.
Depending on measurement objectives, users may terminate tests once stable heat flow is achieved or extend the run for additional averaging. Testing conforms to major international standards, ensuring comparability and reliability of results across laboratories and production environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Measurement Method | Steady-state heat flow method |
| Sensor Configuration | Dual heat-flow sensors |
| Standards Compliance | ASTM C518; ISO 8301; GB/T 10294; GB/T 10295; JIS A 1412; DIN EN 12939; DIN EN 13163; DIN EN 12667 |
| Average Temperature Range (DRH300A) | 0 to 40 °C, programmable |
| Average Temperature Range (DRH300B) | 0 to 100 °C, programmable |
| Average Temperature Range (DRH300C) | -20 to 70 °C, programmable |
| Cooling System | External water bath |
| Plate Temperature Control | Peltier system |
| Programmable Data Points | 10 |
| Sample Size Options | 30 × 30 × 10 cm³; 60 × 60 × 20 cm³ |
| Thermal Resistance Range | 0.1 to 8.0 m²·K/W |
| Thermal Conductivity Range | 0.005 to 2.0 W/(m·K) |
| Repeatability | 0.5% |
| Accuracy | ±1 to ±3% |
| Typical Sample Thickness Range | A few millimeters up to 10 cm (20 cm with larger configuration) |
| Operation | Motorized plate movement; automatic thickness measurement; fixed or adjustable temperature gradient; automated data acquisition and analysis |
| External Computing | Embedded controller or external computer supported |
| Dimensions (DRH300A) | 76 × 55 × 106 cm |
| Dimensions (DRH300B) | 76 × 55 × 106 cm |
| Dimensions (DRH300C) | 86 × 65 × 120 cm |
| Typical Test Time (QC/Process Control) | < 5 minutes to obtain stable R-value (material-dependent) |
| Supplied Components | Main test unit (1 set); analysis software (1 set); low-temperature water bath (1 unit) |
| User-Supplied | Computer and printer |
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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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