Temperature transmitter
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How is the insertion depth of a temperature transmitter determined? Where does the starting point come from? For example, in a pipe with a diameter of 100, is it acceptable to use an insertion depth of 200 mm?
Temperature variation has an insertion depth, which refers to the depth at which the measuring element (thermocouple or thermal resistor) is inserted.
For a normal insertion depth, half of the pipe’s diameter should be used as a guide; for example, for a DN100 pipe, an insertion depth of 50 mm is sufficient. However, when placing an order, it is necessary to take into account the length of the connection nut as well. Normally, this length is 60 mm, so the total depth would be 60 + 50 = 110 mm. In the case of pipes with insulation, the nozzle part is longer, around 120 mm
The insertion method and depth are determined based on factors such as the properties of the medium and the pipe diameter (for example, in gas pipelines, the insertion depth is generally 0.5 times the pipe diameter)
One-third of the pipe diameter is sufficient.