For all structurally relevant components, ZEISS consistently uses steel, which allows for even, controlled heat expansion. In addition, the Z column is also thermally insulated by F.I. technology. The result: The machine can be used in a broad temperature range from 16 to 24°C within the specified measuring error. Furthermore, the machine does not have to be cooled, and temperature compensation is not required. In addition, the light insulation cover can be removed quickly and easily for maintenance.