Xylem SonTek River Surveyor M9, Системное руководство

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SonTek, a Xylem brand
32 RiverSurveyor S5/M9 System Manual (February 2013)
Figure 29. Site Information Menu
6.7. System Settings
System settings are specific to the measurement site. The information is entered by clicking
Change System Settings. This will allow you to enter setup information for the site as well as se-
lect the Track Reference, Depth Reference and Coordinate System. Figure 30 presents the
System Settings menu. This information can be changed during post processing. The data
changed in post-processing will be indicated with green text. Below is an explanation of each
field in the System Settings menu.
Figure 30. System Settings menu
Transducer Depth – This is the distance (m) that the vertical beam transducer is submerged
below the water surface. Figure 31 shows a basic diagram that depicts an ADP’s transducer
face submerged in water. Transducer depth corresponds to the depth of water that the trans-
ducer face is submerged.
Figure 31. Explanation of Transducer Depth Measurement
Screening Distance – This is the distance below the face of the ADP that you want to start col-
lecting data rather than relying on the default setting of the instrument. In essence this setting
allows you to program the ADP to start collecting data below a certain point. This is primarily
used for over-the-boat applications where the screening distance can be set to avoid flow dis-
turbance from the wake of the boat.