CERAN® - is an extraordinary glass ceramic - highly resistant to breakage and temperature changes, will not distort, permeable to ultra-violet light and also highly acid-resistant.
Construction: the low-mass CERAN® plate is electrically heated over its full surface, and is embedded into a high-grade, stainless steel frame which is mounted on an internally insulated stainless steel housing.
The temperature control system is regulated by an electronic NiCr-Ni temperature sensor (regulation range between 50 and 500°C).  The controller is built into a pressure-cast aluminium casing. The heating time for 500°C is approximately 8 minutes.
Four feet, which can be individually adjusted to an approximate height of 8 mm, ensure a wobble-free, horizontal stability.
Type 4 SR is also equipped with 4 retort rod sockets (situated 100 mm from each other).In the EB Series, the electrical connection between the controller and the hot plate is protected by a flexible metal hose.