Xylem SonTek FlowTracker2, Руководство пользователя

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SonTek – a Xylem brand
FlowTracker2 User’s Manual (January 2019)
174
Variable Description Units Decimal
component.
Vel. Y Mean
Average station velocity, Y velocity component
of all stations.
m/s or ft/s 4
Vel. Y Min
Minimum station velocity, Y velocity
component.
m/s or ft/s 4
Vel. Y Max
Maximum station velocity, Y velocity
component.
m/s or ft/s 4
Vel. Z Mean
Average station velocity, Z velocity component
of all stations.
m/s or ft/s 4
Vel. Z Min
Minimum station velocity, Z velocity
component.
m/s or ft/s 4
Vel. Z Max
Maximum station velocity, Z velocity
component.
m/s or ft/s 4
σV. Mean
Average standard error, X velocity component
of all stations.
m/s or ft/s 4
σV. Min
Minimum standard error, X velocity component
of all stations.
m/s or ft/s 4
σV. Max
Maximum standard error, X velocity
component of all stations.
m/s or ft/s 4
SNR Mean Average SNR of all stations. dB 2
Automated Beam Check 9.3.4.3
Automated Beam Check function in the data collection menu allows the user to perform
beam check during any stage of the velocity measurement. The Automated Beam
Check function operations, conventions and graphic display features are defined under
Automated Beam Check .
Automated Beam Checks performed during the discharge measurement are stored in
FlowTracker2 file (.ft) that was created for the measurement site.
PS Calibration (Pressure Sensor) 9.3.4.4
The PS Calibration function in the data collection menu allows the user to perform
Pressure Sensor Calibration during any stage between point velocity measurements.
Frequent calibration of pressure sensor for atmospheric or air pressure changes during
the measurement will improve the accuracy of pressure measurements. The variation
in atmospheric or air pressure will impact the accuracy of pressure measurements.