SonTek – a Xylem brand
FlowTracker2 User’s Manual (January 2019)
141
Sensor
Automated Beam
Check
Pressure Sensor
Depth Guide
Figure 8:34 - Features of Setting Fractional Depth
Tilt Bubble
Velocity Angle
Sampling
Volume
The Sampling Volume of the instrument is defined by the white vertical line displayed
on the Beam Profile plot in Figure 8:34. The location of the line is fixed and is based on
the geometry of the beams. This is an excellent guide to indicate if the boundary is too
close to the sampling volume.
Fractional Depth Measurement screen displays
graphical display of raw data of the following variables
during a velocity measurement,
a) Velocity,
b) SNR,
c) Temperature,
d) Tilt,
e) Vel. Angle,
f) Probe Depth,
g) Battery,
Figure 8:35 - Fractional
Depth Measurement
Tilt and Velocity Angle indicators are situated on the right hand side of the screen.
i) Tilt,
j) Velocity Angle,
k) Averaging Time left.
l) To select a variable graphical display,
i). Use up or down scroll arrows keys to view a variable.
m) To stop sampling,
i). Press the Right Soft Key.
n) To CANCEL velocity measurement,
i). Press the Left Soft Key.