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HydrINS 2 / HydrINS 2 Mini flow meter
Installation Manual
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DI
4 Installation location of the HydrINS 2 / HydrINS 2 Mini flow meter
4.1 Choice of installation location and installation and flow conditions
For accurate measurement of the flow, the pipe must be continuously carrying a flow, and
disturbance-free upstream and downstream distances ('straight lengths') must be observed. The
table below summarises the upstream distances to be observed according to the disturbing element.
disturbance-free upstream and downstream distances ('straight lengths') must be observed. The
table below summarises the upstream distances to be observed according to the disturbing element.
Figure 10: Flow conditions to be observed
UPSTREAM STRAIGHT LENGTH: See Table 1
DOWNSTREAM
STRAIGHT LENGTH:
5×DI
DIRECTION OF FLOW
*DI: inside diameter of pipe