LFY-232 Textile Thermal Resistance and Moisture Resistance Testing Device

Main purpose:

It is used for the measurement of thermal resistance and moisture resistance of various textile products and the textile fabrics, films, coatings, foams, leather and composite materials used in the production of these products under steady-state conditions. 
Instrument characteristics: 
1. Import high-precision temperature sensors; 
2. Integrated design of high-precision constant-temperature and constant-humidity chamber and instrument; 
3. DSP microcomputer control and data processor; 
4. Professional analysis software can directly measure and calculate the thermal resistance, moisture resistance, moisture permeability rate, moisture permeability index, insulation rate, thermal conductivity, and Cro value of the sample. 
5. Digital temperature sensor, capable of real-time, rapid and dynamic collection of temperature and humidity data, with independent calibration at multiple points; 
6. Test bench for simulating human skin using national patented technology; 
7. Imported motors and lifting system allow for digital height setting, enabling quick compatibility with tests on samples of different thicknesses. 
8. Equipped with a patented automatic water supply system for precise water level replenishment, with an error of less than 1 millimeter. 
9. The entire machine has undergone special humanization tests, which are convenient, simple and highly operable. 
Technical Indicators: 
Thermal resistance (Rct) range: (0.002 - 2.000) m2.K/W  Resolution: 0.0001 m2.K/W 
2. Wet resistance (Ret) range: (1.0 - 1000) m2. Pa/W  Resolution: m2. Pa/W 
3. Temperature range of the test bench: Adjustable from 20 to 50 degrees Celsius; ±0.1 degree Celsius 
4. Temperature measurement accuracy: ±0.1℃ Resolution: 0.01℃ 
5. Humidity measurement accuracy: ±3%  Resolution: 0.1% 
6. Sample thickness range: (0 - 70) mm 
7. Air flow velocity in the duct: (1 ± 0.05) m/s  0.1 m/s to 2 m/s (adjustable) 
8. Outer dimensions of the thermal interlock: 512mm × 512mm 
9. Width of the heat shield ring: 127mm 
10. Test board size: 250mm × 250mm 
11. Sample size: 515mm × 515mm 
12. Dimensions of the climate chamber: 830mm × 780mm × 630mm 
13. Power Supply: AC 380V ± 10% 50Hz 3.5kW 
14. Dimensions: Main unit (1100×1220×1820) mm, Computer desk (690×690×800) mm 
15. Weight: Approximately 280 kilograms 
Applicable standards: 
GB/T11048; ISO11092:2014; ASTMD1518; ASTMF1868(A-E); JISL1096; NFPA1971, etc. 
GB 38300-2025 Protective Clothing - Cold Weather Clothing