The Pitot tube enables the total pressure in a flowing fluid to be measured. The unit consists of a small tube that is positioned in the flow such that the opening is facing the flow.
A wall bore in the measuring section of HM 170 is used as static tube. The Pitot tube and the static tube are connected to a differential pressure manometer. The dynamic pressure can be read directly. The flow velocity is calculated.
To indicate the pressure, the following units are optionally available:
inclined tube manometer included in HM 170,
differential pressure manometer HM 170.53,
electronic pressure measurement HM 170.55 or
system for data acquisition HM 170.60.
