SonTek – a Xylem brand
FlowTracker2 User’s Manual (January 2019)
274
temperature in velocity
calculation. If value is
entered, this value will be
Sound speed
Sound speed used in velocity
measurement. If left blank,
will use measured
temperature and entered
salinity in calculation of sound
speed used in velocity
calculation. If value is
entered, this value will be
Mounting correction
Mounting correction (%)
applied to velocity value.
Quality
Control
Settings
SNR threshold
SNR threshold (dB). If mean
SNR at sample volume is
below this value, a warning
Standard error threshold
Standard error threshold (in
velocity units). If standard
error over all samples at each
station exceeds this
threshold, a warning will be
Spike threshold
Spike threshold (in counts). If
number of spikes at a station
exceeds this value, a warning
Maximum velocity angle
Maximum velocity angle (in
degrees). If mean angle of
flow with respect to ADV X-
axis exceeds this value at a
station, a warning will be
Maximum tilt angle
degrees). If mean tilt at a
station exceeds this value, a