ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 - Manual (Page 42)

Installation 3-5
 Error! Undesirable flow conditions
 Sufficient distance to obtain steady flow (10 … 50 x
diameter, depending on the application)
Overflow pipes (flows immediately downstream from a weir wall) or drops create unstable flow conditions
 Error! Risk of silt build-up / sludge accumulation
caused by negative slope
Negative slope – risk of silt accumulation
 Error! Changes in slope = changes in flow profile
 Distance depending on slope and flow velocity reading
l = minimum 20 x diameter
Error caused by changes in slope