SonTek, a Xylem brand
132
RiverSurveyor S5/M9 System Manual (February 2013)
Follow the simple procedure outlined in the
Get Tagline Azimuth
dialog as follows:
1.
Align the M9/S5 power and communications connector to point directly down-
stream. If you are deploying the instrument from a floating platform (i.e. boat,
tri-hull, hydroboard, etc…) then simply lower the boat into the water and allow
it to align itself with the flow. This is typically best done in a location near the
center of the river in a section of flow that flowing directly downstream.
2.
Once the M9/S5 has been correctly aligned with the river and is relatively
steady press
Start
to collect data. During this time the compass will display
instrument heading at 1-second intervals, average instrument heading, com-
puted tagline azimuth, and the number of samples (in seconds) as shown in
117. After 20-30 seconds of data collection press
Stop
and close the
dialog. The tagline azimuth field in the system settings dialog box will auto-
matically be updated with the tagline azimuth measured using
Get Tagline Az-
imuth
.
Figure 117. Get Tagline Azimuth
