This test equipment assesses the heat insulating properties of the sole complex of protective footwear. To perform the test, the sample (whole shoe) after properly prepared and conditioned is placed over a thermostatically-controlled hot plate covered with sand (sand bath), so that the sand covers the featherline. The temperature increase inside the sample is read through a probe previously installed inside the shoe and linked to a digital thermometer allowing real-time temperature readings. The temperature is registered by a printer in intervals of 5 minutes since the beginning and till the end of the test.
The progression of the temperature inside of the shoe allows to verify the insulating properties.
Volume of sand: 5000 +/- 250 cm³
Hot plate max temperature: till 300° C (tolerance +/- 5° C)
Sample temperature measuring system: +/- 0,5° C accuracy
Heat transfer medium: stainless steel balls, 5 mm diameter (according to ISO 3290)
Supplied with: operating instructions, conformity/calibration certificate
Standard: EN ISO 20344:5.12; ISO 20877
Power consumption: 2000 W
Power supply: 230 V.AC – 50/60 Hz