Sweating Guarded Hotplate

The Sweating Guarded Hotplate is a state-of-the-art instrument for accurately measuring the thermal and evaporative resistance of textiles and clothing materials. Designed to simulate human skin, it features an automatic water supply system, wind speed stabilization, and high-precision temperature control. Its advanced design separates the test unit from the climate chamber, ensuring reliable results while preventing corrosion with a durable aluminum alloy shell. Suitable for fabrics, coatings, foams, and multi-layer assemblies, this professional instrument helps manufacturers evaluate material performance under steady-state conditions for optimal comfort and protection in varying environments.

Technical Specifications

• (RCT)Thermal resistance range : 0.002-2 .0 m²K / W
• Repeatability: ≤ ± 2%
• Resolution: 0.001m²K / W
• (Ret)evaporative Resistance range : 0-1000m²Pa / W
• Repeatability: ≤ ± 2%
• Resolution: 1m²· Pa / W
• Test plate temperature range: 20 ℃ ~ 50 ℃ adjustable
• Temperature control accuracy: ± 0.03 ℃
• Temperature measurement: ± 0.01 ℃
• Air velocity: 0 ~ 1.5 m / s continuously adjustable
• Air velocity accuracy: ± 1%
• The sample platform lift range :0~50mm automatic lift
• Sample thickness: 0~50mm
• Test plate area: 254mm × 254mm
• Guard ring size: 512mm × 512mm
• Guard ring width: 127mm
• Sample size: 500mm*500mm
• Dimensions: 73 × 61 × 350cm (L x W x H) (not including Climate Chamber)
• Weight: 45Kg (not including Climate Chamber)
• Host power: AC220V ± 10%, 100W or AC110V ± 10%, 100W

Professional Technology

1. The world’s first independent design concept, integrated design of control systems and automatic water supply system, users can choose the standard Climate Chamber.
2. Automatic water supply, Automatic drain system, Strong feed water system (In the Evaporative Resistance, water uniformly wets test plate faster)
3. High-precision automatic platform mobile systems, enter the thickness of the test the test platform to move to the corresponding position.
4. According to the thickness of the sample, the machine automatically adjust the PID control parameters, test conditions can quickly reach.
5. The patented Air velocity parallel stabilization system, let the Air velocity homogeneous and stable, so that the test results are more stable.
6. Air velocity continuously adjustable from 0 ~ 1.5m / s to meet any Thermal and Evaporative resistance testing stan-
7. Guard ring width 127mm, to ensure that heat is passed from the test
8. Wi-Fi communication to PC, to make the connection more

Testing Standards

GB / T 11048, ISO 11092, ASTM F 1868-09, ASTM D 1518-85, JIS L1096-2010, ASTM F 1868-02, BS8510-2009

Test Principle

Clothing is often made of materials that impede the flow of heat and moisture from the skin to the environment. Consequently, people may suffer from heat stress or cold stress when wearin clothing in different environmental conditions. Therefore, it is important to quantify the thermal resistance and evaporative resistance of clothing materials and to consider these properties when selecting materials for different clothing applications.

Application

Measurement of the thermal resistance and the evaporative resistance, under steady-state conditions, of fabrics, films, coatings, foams, and The quilt, including multi-layer assemblies, for use in Clothing production.

Configuration

Standard configuration: host test unit, a power line, LABTest analysis PC software
Optional accessories: Climate Chamber.

Why Choose Sweating Guarded Hotplate?

The Sweating Guarded Hotplate offers unmatched precision and efficiency for thermal and evaporative resistance testing. Its independent design integrates a control system with an automatic water supply, allowing quick and consistent test preparation. The high-precision platform automatically adjusts to sample thickness, ensuring accurate positioning and PID control for reliable results. Its patented air velocity parallel stabilization system guarantees uniform and stable airflow, critical for consistent measurements. With adjustable air velocity, precise temperature control, and Wi-Fi communication to PC software, the instrument ensures seamless operation and data collection. Guard rings and a corrosion-resistant aluminum shell further enhance reliability. Ideal for fabrics, foams, coatings, and multi-layer assemblies, it meets international standards including ISO, ASTM, GB, and JIS.