SATRA STM 471 Heated sandbath
This bath is designed to assess the heat insulating properties through the soles of safety footwear. The apparatus consists of a thermostatically-controlled hot plate covered with sand.
The footwear is placed on the hot plate so that the sand covers the featherline. A separate temperature probe, connected to a digital readout via a plug and socket arrangement, is placed inside the footwear to measure the temperature rise over a specified time.
The sandbath incorporates an illuminated power on/off switch and a temperature controller.
The digital display for the separate temperature sensing probe is also located on the control panel. The separate temperature probe is supplied with the equipment, along with a sufficient quantity of steel balls which are packed inside the footwear during the test.
A fitted mesh guard protects the operator from the heat source during testing.