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LBT-DR2G Low‑Thermal‑Conductivity Material Thermal Conductivity Tester (Transient Hot‑Wire Method)

The LBT‑DR2G low‑thermal‑conductivity material thermal conductivity tester (transient hot‑wire method) employs a single‑wire sensor and is designed to measure powders and solid bulk materials, particularly low‑thermal‑conductivity insulation materials. The heating wire serves both as the heating element and the temperature‑sensing element. A key feature of this sensor is that the hot wire is attached directly to the insulating material; due to its extremely fine diameter, it is well suited for measuring lightweight materials with low heat capacity and low thermal conductivity. However, because the hot wire is bare and the conductive material cannot be measured directly, special precautions are required. Reference standard: ASTM D5334‑2014, “Standard Test Method for Thermal Conductivity of Soils and Soft Rocks by the Hot‑Wire Probe Method.”

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Building Energy-Efficient Material Testing Equipment

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LBT-DR2G Low‑Thermal‑Conductivity Material Thermal Conductivity Tester (Transient Hot‑Wire Method)

Description

Product Introduction:

The LBT‑DR2G low‑thermal‑conductivity material thermal conductivity tester (transient hot‑wire method) employs a single‑wire sensor and is designed to measure powders and solid bulk materials, particularly low‑thermal‑conductivity insulation materials. The heating wire serves both as the heating element and the temperature‑sensing element. A key feature of this sensor is that the hot wire is attached directly to the insulating material; due to its extremely fine diameter, it is well suited for measuring lightweight materials with low heat capacity and low thermal conductivity. However, because the hot wire is bare and the conductive material itself cannot be measured directly, special precautions are required.

Reference standard:

ASTM D5334-2014: Standard Test Method for Determining Thermal Conductivity of Soils and Soft Rocks Using the Hot-Wire Probe Technique.

Key features:

1. Easy to operate, fast testing speed, and accurate measurements,

2. Particularly suitable for on-site measurements,

3. Automation testing software, easy to operate,

4. Equipped with a temperature controller, it can measure the thermal conductivity of samples at various temperatures.

Technical Specifications:

Parameter Category	Parameter content
Thermal conductivity range	0.0010—2.0 W/m·K
Test temperature range	-40℃ to 100℃
Test accuracy	≤±3%
Probe Type	Single hotline
Probe parameters	Φ0.06×100mm (platinum wire)
Measurement time	10–600 seconds
Sample Type	Powders and solid bulk materials, suitable for the characterization of low‑thermal‑conductivity materials.
Sample size	≥114×80×40mm
Power supply	Voltage: 220V, Power: ≤200W

Instrument configuration:

Includes one test host for the LBT-DR2G low‑thermal‑conductivity material rapid thermal conductivity tester, one test probe, one set of testing software, one set of communication interface and data cable, and one Lenovo desktop computer (configured according to the contract).

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Keywords:

LBT-DR2G Low‑Thermal‑Conductivity Material Thermal Conductivity Tester (Transient Hot‑Wire Method)

LBT-DR2D Soil and Soft Rock Deep Thermal Conductivity Tester (Transient Probe Method, Large Probe)

Lb-XY2 Heat Storage Coefficient Tester

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