micro-trak MT-3405 LR F, Справочное руководство

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20
CIRC:
This position is used to calibrate the speed sensor
for ac cu rate speed and dis tance measurement. When this
position is selected, the display will alternately show, every
three seconds, the
wheel circumference
value and the distance
value. The wheel
circumference value is the number shown
along with “CAL” on the display. See Illustration
16. The distance value is the number shown
when “CAL” is not shown on the display. Either one may be
selected to calibrate for speed and distance measurement.
Select by pressing the “+” or “-” button when the desired
value is being displayed.
CIRC
DISTANCE
Working Width
Banding Application Calibration
In banding applications, you will still need to enter the total
width of each boom section so that area counts correctly, but
you must also calculate the percentage of your total width
the band is covering and reduce your target rate to match.
For example, if you are planting with an eight-row planter
with 30-inch spacing, your total working width, regardless
of the width of bands, is 240 inches (8 x 30 inches). Now, for
purposes of this example, you have eight 12” bands. Your
total band coverage is 96 inches (8 x 12 inches). Based on
that, your band is covering 40 percent of your total width
(96 divided by 240). If you want to apply 20 GPA in the
band, enter 8 GPA as your target rate (40 percent of 20 GPA).
See Illustration 15.
Illustration 15
WIDTH BOOM
SELECT
TEST
SPEED
ADJUST
RATE
TARGET
RATE
CIRC
MIN
FLOW
FLOW
CAL
SPEED DISTANCE
FLOW
RATE
TOTAL AREA
APP. RATE TOTAL FLOW
SUB AREA
ON
OFF
ON
OFF
1 2 3 4 5
B O O M S
RUN
HOLD
AREA
HOUR
CAL
AUTO
MAN
RESET
MT-3405
™
F
AUTOMATIC RATE CONTROLLER
CAL HOLD
V 1 2 3 4 5
Illustration 16
To determine circumference, measure the distance
of one complete wheel revolution and divide
by the number of magnets installed .
Determining Wheel Circumference
For the console to calculate the correct number of acres
(hectares), both the circumference of the sen sor-equipped
wheel and the implement width must be entered.
Determine the circumference of the sensor-mounted wheel
to the nearest tenth of an inch (thousandth of a meter) with
the fol low ing method:
METHOD
Mark tire with a piece of chalk and mea sure distance traveled
on the ground for one com plete rev o lu tion. See Illustration
17. For accuracy, measure the wheel rev o lu tion sever al times
and take the average. Divide that val ue by the num ber of
magnets installed on the wheel hub to get your starting
wheel cir cum fer ence (CIRC) cal i bra tion val ue.
Calibration
(cont)
Entering Calibration Values
(cont)
Illustration 17