Flo-Ware Manual - Hachflow

Device communication
b. Click TAKE SAMPLE. After approximately 45 seconds, the measured velocity is
shown.
c. In the Actual Velocity field, enter the known velocity. The multiplier value is
calculated and the value is shown in the Multiplier field.
d. Click OK.
e. Repeat steps a–d to make sure the velocity is stable.
4. If the average velocity is not known, a velocity profile should be completed.
a. Click on the Diagnostics tab and then the Current Status menu.
b. Record several real-time velocity readings from the Channel Info section.
c. Calculate the average of the real-time velocity readings.
d. Complete a velocity profile. The Open Channel Profiling Handbook is a good
reference on velocity profiling.
e. After the velocity profile is completed, repeat steps a–c.
f. Compare the average velocity from the real-time readings to the velocity profile.
g. Calculate the multiplier to convert the Flo-Dar velocity to the profiled velocity.
h. Click on the Programming tab and go to the Flo-Dar sensor port menu.
i. Enter the multiplier in the Site Multiplier field in the General Settings tab.
5. Change any of the velocity settings if necessary:
Option
Site Multiplier
Min FFT Limit
Max FFT Limit
Min Velocity Cutout
Description
Adjusts the Flo-Dar velocity to the profiled or known value.
Narrows the processing window of the velocity measurement.
Narrows the processing window of the velocity measurement.
Forces the velocity to a substitute value when the measurement is
outside of a user-specified range.
Max Velocity Cutout Forces the velocity to a substitute value when the measurement is
outside of a user-specified range.
6. Click WRITE TO LOGGER to save the settings. A message window is shown:
Option
Warning: all data
will be lost.
Continue?
Description
All data that is stored in the logger is erased when a program is written to
the logger. To save the data, select No and download the data to a safe
location. Select Yes to erase all data and update the logger with the new
program.
Set Logger Clock Synchronize to Computer Clock—the logger uses the date and time
settings of the computer. Set Logger Clock—the logger uses the date
and time settings that are set by the user. If the unit has a modem, the
logger automatically uses the date and time settings of the server.
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