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9
VI.
Computer Operation
Main Display
In the main display, the 4 buttons are
labeled as shown.
The MODE button toggles the
upper display between average
velocity minimum, maximum
and timer. The label next to
this display changes to correctly
indicate which parameter is shown.
The MENU button is used to
view stored data, delete data,
set the flow units to FT/S or M/S,
and change the calibration setting.
Press the MENU button for 2 seconds
to enter the setup menu. In menu mode, the labeling of the 4 buttons
on the LCD display may change to indicate different functions.
The SAVE button is used to save the average, minimum and
maximum velocity data to memory.
The RESET button causes the average, minimum and maximum data
to be set to the current instantaneous velocity shown in the large
lower display. Averaging and storage of minimum and maximum
values begins at that time at the rate of once per second.
Note that the propeller should already be in position to begin taking
measurements when the RESET button is pressed; if it isn’t, the
button can be pressed again. When the RESET button is pressed
while the propeller is not turning, the avg/min/max parameters are all
set to zero. This will cause the minimum velocity to always read zero
and the average velocity will include all the zero readings since the
