78
SMARTFLOW II
Rotary Dial Functions (Cont.)
8. Rotary Dial Position: RATE
Function: Displays Actual Rate in OZ/Acre
or Milliliters/Hectare
The
RATE
position displays in the “Data” display
window and also will show the same value in the
“Application Rate” display window.
The
RATE
position displays .001 – 99,999 oz/acre
or 0.1 – 99,999 mLiters/Hectare.
Rate operates while in
VARIABLE
and
CONTINUOUS
mode but will go to zero in the OFF mode even if a
flow signal is present. It also goes to zero if in
VARIABLE
mode and “Lo speed” or “Hi Speed” in
Application Rate display.
Rate is displayed with one or more decimal places
depending on the rate as shown below. In general
the decimal point is automatically shifted to eliminate
redundant digits that ad “jitter” while maintaining
a 1% resolution for high accuracy.
English Units:
When slowly increasing from 0 to maximum, the
decimal point will automatically shift at the following
values:
3 decimal places
0.000 – 1.999
2 decimal places
2.00 – 9.99
1 decimal place
10.0 – 99.9
No decimal place
100 – 16,777
(displays OFL)
When slowly decreasing from maximum to 0,
the decimal point will automatically shift at the
following values:
No decimal place
16,777 – 90
1 decimal place
89.9 – 9.0
2 decimal places
8.99 – 1.00
3 decimal places
0.999 – 0.000
Between each of the above 4 decimal ranges, a
hysteresis window as shown below will prevent rapid
switching back and forth between decimal points.
2 or 3 decimal places
1.000 – 1.990
1 or 2 decimal places
9.00 – 9.90
0 or 1 decimal places
90.0 – 99.9
Metric Units:
When slowly increasing from 0 – maximum the decimal
will shift at the following values:
1 decimal place
0.1 – 99.9
No decimal place
100 – 99,999
(then goes to OFL)
When slowly decreasing from maximum to 0 the
decimal will shift at the following values:
No decimal place
99,999 – 90
1 decimal place
89.9 – 0.1
If an error between the Actual Rate and the Target
Rate is
≥
5% then the display will simply show the Target
Rate. If the error ever exceeds 10% then the Warn LED
and the audible alarm will turn on (steady). However,
the audible alarm (only) can be delayed by adjusting
the “Alarm Setting” calibration value.
CONTROL PANEL FUNCTIONS