The present invention relates to an immersion probe (3) including a measuring head (10, 210, 310) having an immersion end (10a) and an opposite second end (10b) having an end face (15,315). the measuring head (10, 210, 310) is formed of first and second body halves configured to correspond to each other along a separation line. A sample chamber (20, 216, 331) disposed within the measuring head (10, 210, 310) is thermally insulated from a cooling mass therein and includes a metal wall (26) having a thickness 2.5 mm or less. an inlet tube (27) has an inlet port (30, 231) inlet port (30, 231) for the sample chamber (20, 216, 331). the inlet opening (30, 231) has a toothed diameter and is spaced from the end face (15, 315) of the measuring head (10, 210, 310) at a distance of at least formula (1). when the sample chamber (20, 216, 331) is filled with a molten metal sample, a ratio of a mass of the metal sample to a mass of the metal wall (26) of the sample chamber (20, 216, 331) ) is greater than 2.6 and less than 6.
展开▼
