ADS Environmental Services FlowShark Pulse QR 775004 A1 - Manual (Page 54)

Installation 6-9
max. WSP
~ ~11.8 in
~ ~3.94 in
3
2
1
(1) = Wave formation on water surface behind the sensor Æ error message from following air-ultrasonic sensor (2)
(2) = Good (might have to be installed 0.39 inches (10 mm) lower in low flow depth conditions)
(3) = Distance too large from edge of sensor bottom to maximum water level
Figure 6-10 Installation with separate depth measurement devices in the manhole
= Error! Caused by vorticity and wave formation behind fall
Æ Choose another location or redesign manhole
Figure 6-11 Error caused by fall or changing slope