ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 - Manual (Page 160)

Parameter Settings 6-61
v-crit Determination
This menu is designed for use in depth levels less than 2.6 inches (65 mm). Three
methods are available for determining flow velocity:
 Manning-Strickler (with a known slope and roughness)
 Manual (with a calculated reference value)
 Assistant (for locations that can experience blockages down to 2.6 inches (65
mm))
To achieve the most beneficial results, ADS recommends that only
personnel with comprehensive knowledge and experience in this area
use these parameters. Please contact ADS for assistance or training
concerning these devices, when necessary.
Determining v-crit
Manning-Strickler
The unit calculates the theoretical discharge curve based on the settings for
Dimensions, Slope, and Roughness.
This function may be used in conjunction with the automatic mode. The theoretical
settings designated for the measurement location (at which the flow velocity readings
are taken) will be verified using this method.
Manning-Strickler
Modify the following values to populate the Manning-Strickler table:

kst Enter the Manning-Strickler coefficient.

le [%] Enter the slope at the measurement location based on a percentage.