The load and contact area of the KES-F7’s heat plate, which is brought into contact with the target sample, is designed to imitate the sensation of touching an object by hand, allowing for more realistic measurements of maximum heat transfer amounts.
This compact cooling base allows for constant control of the base temperature of a measurement sample. Temperatures are kept constant electrically to prevent temperature variations and ensure good thermal properties in the measurement data. This device can be used instead of the water box.
|Item||Characteristic value||Description||Reading the data|
|Thermal Properties||q max||Peak heat flux||(with selection switch set to Cool)
Higher values mean a colder feeling
|k||Thermal conductivity||Higher values mean heat is more easily transferred|
|%||Heat retention properties||Higher values mean higher heat retention properties|
Connecting this device to the instrument and to a PC allows the waveforms and numerical values of measurement data to be output.
Obtained data can be saved as BIN data or CSV data.
The Kawabata Evaluation System, centered on Sueo Kawabata, a professor at Kyoto University, and Masako Niwa, a professor at Nara Women’s University, is an objective evaluation method for measuring the texture of clothing fabrics based on the “The Standardization and Analysis of Hand Evaluation” provided by the Hand Evaluation and Standardization Committee of the Textile Machinery Society of Japan.
|Power source||100 VAC
(Thermo Labo unit) Max. power consumption: 50 W
(Wind tunnel unit) Max. power consumption: 20 W*
(Thermo Cool unit) Max. power consumption: 20 W
|Measurement environment temperature and humidity||20 to 30°C / 50 to 70％ RH
(No condensation.) Temperature and humidity kept constant during measurement.
(Standard temperature and humidity conditions: 20°C / 65% RH)
*Installation should be in a location with minimal influence from wind or vibrations.
|Measurement unit configuration||T-Box: (T-plate 3 × 3 cm)
5 cm BT-Box: (BT plate5 × 5 cm)
10 cm BT-Box: (BT plate 10 × 10 cm)*
|Temperature display||Unit: Degrees Celsius
Min. display: 0.1°C
Upper limit of usable temperature: 40°C
|Evaluated coldness/warmth feeling value||q max [W/cm2]|
|Heater control method||Output in voltage proportional to temperature difference|
|Heat-loss display||Max. usable range (200 mW range): Approx. 200 mW
Max. usable range (2 W range): Approx. 2 W
Max. usable range (20 W range): Approx. 10 W
*Do not use the 200 W range.
|Measurement range||Thermo Labo unit: Max. 10 W
(stable measurable range: 3 W (1.2 kW/m2) or less)
Wind tunnel speed: Max. 1 m/sec*
Thermo Cool: Min. temperature setting (5°C) to room temperature
|Specimen size||Dimensions: 20 × 20 cm, Thickness: 2 mm (max.)|