LRS Series 1000ºC Thermal Conductivity Tester Guarded Plate Heat
Flow Meter Method1.Description
This instrument is a thermal conductivity tester for thermal
insulation materials developed from our LRS-2 water flow plate
method thermal conductivity tester. Compared with LRS-2, it has
improved resolution and automation, shortened test time, easier
maintenance, and more reliable instrument performance. This
instrument uses the protective heat flow meter method to detect the
thermal conductivity of thermal insulation materials at high
temperatures. It is suitable for testing the thermal conductivity
of refractory insulation, ceramic fibers, felt, textiles, boards,
bricks and other materials at different temperatures. It is widely
used in material analysis and testing in colleges and universities,
scientific research institutions, quality inspection departments
and production plants.
2.Standard: This instrument reference standard: ASTM C518-10 Test method for
determining steady-state heat flux and heat transfer
characteristics by heat flow meter method; ISO 8301:1991 and GB/T
10295-2008 Determination of steady-state thermal resistance and
related characteristics of thermal insulation materials (heat flow
meter method), etc. 3.Technical Parameter. | Specification Item | LRS-4A | LRS-3A | LRS-3B | | Thermal Conductivity Range | 0.001-3 W/m·K | 0.0010-3 W/m·K | 0.0010-3 W/m·K | | Measurement Accuracy | Better than ±5% | ±5% | ±5% | | Hot Surface Temp. Range | 200-1200°C | 100-1200°C | 100-1200°C | | Calorimetric Temp. Control Method | Semiconductor cooling | Semiconductor cooling | Semiconductor cooling | | Guard Temp. Control Method | Semiconductor cooling | Semiconductor cooling | Semiconductor cooling | | Calorimetric Plate Size | 75×75 mm | 75×75 mm | 75×75 mm | | Heat Flux Meter Size | 75×75 mm | 75×75 mm | 75×75 mm | | Specimen Temp. Points | 4 points | 4 points | 4 points | | Loading/Unloading Method | Electric loading | - | - | | Pressure Range | 0-500 N | - | - | | Thickness Range | 0-120 mm | - | - | | Thickness Correction | Real-time correction by displacement meter | - | - | | Specimen Atmosphere | Air | Air | -0.095 MPa; Atmosphere protection | | Specimen Size | 230×230 ~ 250×250 mm; Thickness 10~100 mm | 200×200 ~ 250×250 mm; Thickness 10~100 mm | 200×200 ~ 250×250 mm; Thickness 10~100 mm | | Measurement Control | Fully automated PC testing, data processing, report generation, and
printout. | Fully automated PC testing, data processing, report generation, and
printout. | Fully automated PC testing, data processing, report generation, and
printout. | | Power Supply | 220V, 50Hz, ≤5 kW | 220V, 50Hz, ≤5 kW | 220V, 50Hz, ≤5 kW | | Standard Configuration | • LRS-4A main unit
• Software suite
• Test thermocouples
• Rubber water hose (requires tap water connection; optional water
bath upgrade available at extra cost)
• PC (can be user-provided) | • LRS-3A main unit
• Software suite
• Test thermocouples
• Rubber water hose (requires tap water connection; optional water
bath upgrade available at extra cost)
• PC (can be user-provided) | • LRS-3B main unit
• Software suite
• Test thermocouples
• Rubber water hose (requires tap water connection; optional water
bath upgrade available at extra cost)
• Vacuum sealing device
• Vacuum pump
• PC (can be user-provided) | | Optional Features | Multi-layer testing (requires additional thermocouple per layer,
extra cost). | Multi-layer testing (requires additional thermocouple per layer,
extra cost). | Multi-layer testing (requires additional thermocouple per layer,
extra cost). |
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