Xylem SonTek FlowTracker2, User Manual

Page: 95 / 308

SonTek – a Xylem brand
FlowTracker2 User’s Manual (January 2019)
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% Stn Q
Evaluate
b) If the station discharge exceeds Max Station Q percent of the rated flow, a
warning is issued; you are prompted to consider adding another station.
i). If rated flow is entered, the discharge from each station is checked against this
rated value when the station is completed.
ii). Max Station Discharge is checked at the end of each station and
measurement section (see Timing of Warning Messages ).
•
User is notified of any stations that exceed the Max Depth Change
criterion.
•
User is prompted to verify the depth value or re-enter the depth.
c) The maximum station discharge is checked at the end of a station and if the ratio
of station discharge to rated discharge > Max Station Discharge , then give the
High Stn % Discharge warning.
d) The maximum station discharge is checked at the end of a section and reports the
stations where the percent of station discharge to total discharge exceeds Max
Station Discharge .
e) Max Station Discharge is active only in Discharge data collection mode.
f) This criterion can be adjusted or disabled under Discharge Settings .
Station Water Depth 6.1.8
The Max Depth Change criterion (default 50%) is intended to avoid data entry errors.
a) It is assumed that depth changes between stations will be gradual.
Max
Depth
Evaluate
b) If the entered depth is different from a reference by more than Max Depth
Change (and at least 0.20 m; 0.66 ft) an alert is issued to be sure the depth was
not incorrectly entered.
i). If only the previous station is available, the newly entered depth is compared
to the depth from the previous station.
ii). If depth data are available on both sides of this station, the newly entered
depth is compared to an interpolated depth between the two adjacent stations.
iii). Max Depth Change is checked during station configuration and at the end of
a measurement section (see Timing of Warning Messages ).
•
User is notified of any stations that exceed the Max Depth Change
criterion.
•
User is prompted to verify the depth value or re-enter the depth.
c) Water depth is checked of each station and if the water depth varies from the
reference depth by a percentage larger than Max Depth Change , then give the
Water Depth Change > QC warning.
d) The station water depth check is re-run (only for Discharge mode) to ensure the
warnings are set with the most current data.
e) Max Depth Change is active only in Discharge data collection mode.
f) This criterion can be adjusted or disabled under Discharge Settings .