Xylem SonTek FlowTracker2, User Manual

Page: 121 / 308

SonTek – a Xylem brand
FlowTracker2 User’s Manual (January 2019)
120
Automated Beam Check can be performed during any stage of the data collection
process. The Automated Beam Check functions are available before data collection
start and during velocity measurement from the “Data Collection Menu” (see
Data
Collection Screen ).
Start Automated Beam Check 8.2.1
The FlowTracker2 probe should be placed in the region of the measurement section in
moving water such that the probe is submerged and well away from any underwater
obstacles. The FlowTracker2 collects data for about 20 seconds.
The Automated Beam check screen shows the
steps involved in performing an automated beam
check.
a) To start the automated beam check,
i). Press the Left Soft Key.
b) To CANCEL automated beam check,
i). Press the Right Soft Key,
ii). The software will navigate to Data Collection
window.
c) To accept Automated Beam Check,
i). Press the Right Soft Key,
ii). The software will navigate to the Data
Collection window.
Figure 8:5 - Automated Beam
Check
Evaluate Beam Check Results 8.2.2
The automated beam check quality control criteria used in the evaluation of the beam
check data are listed in
Table 8:1 ,
Table 8-1 - Automated Beam Check Quality Control Criteria
Quality Control Criteria QC Warning Graphic Display
Noise Level
•
Measured electronics noise
level is compared to reference
data. Any significant deviation
causes a warning,
•
A large change in noise level
may indicate damage to the
probe.
•
Noise level supplied in
Automated BeamCheck is
given in Counts. Multiply with
0.43 to convert to dB.
Noise Level >
QC