SonTek, a Xylem brand
134 RiverSurveyor S5/M9 System Manual (February 2013)
Depth Reference: Select either Vertical Beam or Bottom-Track as a depth reference
Figure 120. Depth Reference
The M9/S5 measures depth using a center vertical beam and also a 4-beam averaged depth.
In most cases, the vertical beam will be preferred to provide a depth reading directly below the
instrument. If the vertical beam depth measurement is unavailable then the M9/S5 will automat-
ically use the 4-beam Bottom-Track depth.
Once the azimuth, salinity, track and depth reference have been set press OK to continue.
G-7.5 Step 3: Rated Discharge
The rated discharge used to calculate the percent discharge measured for each station. To in-
put the rated discharge click the update button and input the correct value.
The percent measured discharge is used as a data quality parameter to assist in determining
the correct width of a section.
G-7.6 Utilities
The Utilities section includes links to the Compass Calibration, Set Time, Beam Check, System
Test, and Update Firmware. Please refer to Section 6.9 of the manual for a complete descrip-
tion of each.
G-7.7 Data Collection
To begin data collection, press the Start a Measurement (F5) button located towards the upper
left hand side of the screen.
The Start Edge dialog box will open as shown in Figure 121.
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