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Fast heating: Powerful open spiral elements are supported in lightweight insulation, providing fast heating – typically 20 minutes to 900°C Digital temperature control: Use of a sophisticated algorithm ensures fast recovery of temperature after loading the samples – less than 4 minutes to return to 900°C +10°C. Use of a sophisticated algorithm ensures fast recovery of temperature after loading the samples – less than 4 minutes to return to 900°C +10°C. Calibration ports are provided which permit the insertion of unsheathed probe thermocouples, from the back of the chamber, without risking touching live electrical connections. The probe thermocouple can be positioned under each crucible in turn. Insulation: Hardwearing refractory brick is used around the doorway and a SiC floor provides abrasion resistance. Lightweight ceramic fibre is used in other areas to ensure energy efficient fast hearing and cooling, together with low heat loss into the room. |
A chimney or flue is provided at the back of the chamber. Power switching: Solid state thyristor based zero voltage switching and rapid cycle time give smooth and reliable control with minimal electromagnetic emissions.
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