Table 6:7 - Automated Beam Check Display - Xylem SonTek FlowTracker2 User Manual

Quality Control
Peak Level
Peak Location
Temperature
c) The graphical display of the Quality Control parameters supplied during the
Automated BeamCheck is time series of each parameter. If there are any
significant variation between the beams, spikes are present in the data or Quality
Control warnings are issued we recommend the following steps,
i). Repeat the test at least once, after you verify that the probe and sampling
volume are well away from any underwater obstacles.
ii). Perform BeamCheck, described in
performance in more detail,
d) The display options for individual or all beam check data are listed in
The shortcut key on the keypad determines which beam SNR will be displayed,
e) To select a Quality Control Criteria,
i). Use up or down scroll arrows keys to view quality control criteria.
FlowTracker2 User's Manual (January 2019)
Criteria
• The shape of the sampling
volume curve is compared to
the expected shape. Any
significant deviation causes a
warning,
•
This criterion can only be
checked with sufficient SNR
(> 7 dB).
• The physical location of the
sampling volume is compared
to the expected location. Any
significant deviation causes a
warning.
•
This criterion can only be
checked for sufficient SNR (>
7 dB).
• No criteria defined for
Temperature.
• Temperature data included in
Automated BeamCheck to
allow user to analyze data
before measurement.
Table 6-7 - Automated Beam Check Display
Beam Line Color
Beam1
Beam2
Beam3
All Beams
QC Warning
Peak Level >
QC
Peak
Location >
QC
None
6.3 Beam Check
Keypad Key
Red
Blue
Green
All
105
SonTek – a Xylem brand
Graphic Display
to evaluate FlowTracker2
Table 6:7
1
2
3
4
.