ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 - Manual (Page 41)

3-4 ADS Portable FlowShark Pulse Manual
Sensors in Partially-Filled Pipes
Sensor Adjustment: (left) proper installation in center that should yield reliable measurements; (right) faulty
installation that will yield erroneous measurements
Angle of the
Curve in the Pipe
v ≤ 3.3 feet per
second (1 m/s)
v > 3.3 feet per
second (1 m/s)
α ≤15°
L
≥ min. 3 x DN
L
≥ min. 5 x DN
α ≤45° L ≥ min. 5 x DN L ≥ min. 10 x DN
α ≤90°
L
≥ min. 10 x DN
L
≥ min. 15 to 20 x DN
Sensor positioned behind curves or elbows