ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 - Manual (Page 162)

Parameter Settings 6-63
Measuring countdown Assistant
Once this first measurement is complete, create an obstruction of at least 2.6 inches
(65mm) (ADS recommends 4.7 inches (120 mm)) behind the sensor using a sandbag
or similar object.
The unit will not initiate the second depth measurement at the obstruction until h-
actual exhibits some stability.
Creating obstruction and initiating measurements
Once the readings are stable, the Portable FlowShark Pulse will execute a new 8-
second depth measurement.
Measuring countdown for the second measurement
The unit will display the following readings after the second measurement has been
completed.

h_actual actual depth

h depth before creating an obstruction

v flow velocity reading

Q investigated flow