DRH-30S Heat Flow Meter (HFM)
The DRH-30S measures thermal conductivity and thermal resistance by the heat flow method, with automatic pressure application and specimen-thickness measurement. Applications include plastics, rubber, glass, fibers, expanded polystyrene, foamed concrete, ceramics, rock, soil, refractories, and insulating materials, with references to ASTM D5470, ASTM C518-04, GB 10295-2008, and GB/T 25261-2018.
- Model
- DRH-30S
- Category
- Thermal Conductivity & Diffusivity
Product Description
The DRH-30S uses the heat flow method to measure thermal conductivity and thermal resistance. It applies pressure and measures specimen thickness automatically for plastics, rubber, glass, fibers, expanded polystyrene, foamed concrete, ceramics, rock, soil, refractories, polymers, nylon, resin, and insulation materials.
The instrument references ASTM D5470, ASTM C518-04, GB 10295-2008, and GB/T 25261-2018; applications include material-testing organizations, research institutions, factory quality-control departments, and higher-education teaching and research.
Technical Specifications
| Parameter | Specification |
|---|---|
| Thermal conductivity range | Low: 0.015–5 W/(m·K); high: 3–500 W/(m·K) |
| Cold-plate temperature range | 0–70 °C; resolution 0.01 °C |
| Hot-plate temperature range | Room temperature +5 °C to 350 °C; resolution 0.01 °C |
| Temperature stability | 0.02 °C |
| Specimen size | Ø60 × (1–40) mm; 50 × 50 × (1–40) mm |
| Applied-force range | Maximum 500 N; 0.1 N resolution |
| Thickness measurement range | Maximum 50 mm; resolution 1 μm |
| Heat-flow rate range | 50–3,000 W/m² |
| Operating environment | −5 to 40 °C; relative humidity 0–95% |
| Power supply | AC 220 V, 50 Hz |
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