Thermal and Water-vapour Resistance Tester
By simulating the process of heat and water vapor penetrating fabrics from the human body, this device tests the thermal and moisture resistance values of various materials under stable temperature and humidity conditions. It can be used for testing the thermal and moisture resistance of fabrics, films, coatings, foams, leather, and multi-layer composite materials, such as testing the comfort performance of clothing, quilts, and thermal clothing, and testing the human comfort level of textile fabrics.
Standard Test
ISO 11092:Textiles - Physiological effects - Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test)
ASTM F1868:Standard Test Method for Thermal Resistance of Clothing Using a Sweating Hot Plate
ASTM D1518:Standard Test Method for Water Vapor Transmission of Textiles
JIS L1096:Textiles - Testing methods
ISO 15831:Textiles - Physiological effects - Measurement of thermal resistance of clothing using a thermal manikin
Feature
WATER CIRCUIT wets the sample. As the sample dries, the device adds water under the porous hot plate. An insertion of a cold water can cause inaccurate results, so we heat the water in a two-stage pre-heater.
UNIFORM HEATING of the hot plate is important for accurate results: we use copper layer to achieve high uniformity. In addition, our temperature regulators measure temperature with 0.018 °C resolution.
EQUIPMENT DRAWER
The trolley includes an equipment drawer and a shelf to store all documents and small parts.
USE YOUR OWN CLIMATE CHAMBER
The device fits in all climate chambers that can accommodate 550x430x600 mm (customizable).
RUNS WINDOWS
No special computer needed. We use a Windows 10 based touch notebook computer with Ethernetand Wi-Fi: it would be easy to store the reports on your network.
The measurement application isfree, in English or Czech. We caneven do remote support!
Parameters
| Technical Parameters | Specifications |
|---|---|
| Thermal Resistance (RCT) Range | 0.000~2.0 m²·K/W |
| RCT Indication Error | ≤±2% |
| RCT Repeatability | ≤±2% |
| RCT Resolution | 0.001 m²·K/W |
| Water-vapour Resistance (Ret) Range | 0.000~1000 m²·Pa/W |
| Ret Indication Error | ≤±2% |
| Ret Repeatability | ≤±2% |
| Ret Resolution | 0.001 m²·Pa/W |
| Test Plate Temperature Range | 20°C~50°C (adjustable) |
| Temperature Control Precision | ±0.03°C |
| Temperature Resolution | ±0.01°C |
| Air Speed | 0~2m/s (continuously adjustable) |
| Air Speed Control Precision | ±1% |
| Sample Platform Lifting Range | 0~70mm (automatic lifting) |
| Sample Thickness | 0~70mm |
| Hot Plate Area | 250mm×250mm |
| Heating Ring Size | 512mm×512mm; Heating Ring Width: 127mm |
| External Dimensions (Host) | 760×560×750mm (L×W×H, excluding climate chamber) |
| Weight (Host) | 30Kg (excluding climate chamber) |
| Main Power Supply | AC220V±10%, 100W or AC110V±10%, 100W |
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