Temperature measurement

The temperature in centrifugal pumps is usually quantified using a contact thermometer, whose temperature sensor physically contacts the fluid to be measured. The pronounced exchange of heat between the fluid and the temperature sensor is enabled e.g. via the arrangement in the volume
flow, the material(s) selected, and the design of the temperature sensor. Heat should not be transported to the outside by the temperature sensor, however.

The temperature measuring method used is determined by the respective temperature range and special requirements such as the installation conditions, accuracy, dynamics of the measurands, and signal transfer of a specific measuring task. See Fig. 1 Temperature measurement

Conventional contact thermometers are fluid thermometers, resistance thermometers, and thermocouples. Relevant, valid guidelines are e.g. VDE/VDI 3511, DIN 43735 and DIN 16160.

  

  

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