29
MIN FLOW:
The pur pose of this calibration parameter is to
prevent the system from applying below the recommended
minimum rate for the nozzles.
Enter the
MINIMUM
flow
rate in gallons per minute (li ters per minute) based on the
nozzles being used, for the en tire boom on the sprayer.
DO
NOT enter the actual flow rate of your spray
application.
FOR EXAMPLE:
if the
min i mum flow rate
for the nozzle you are
using is .22 GPM at their
minimum recommended pres sure and your boom has 20
nozzles, enter 4.4 as the MIN FLOW value (.22 x 20 = 4.4). The
system
WILL NOT
ap ply at a rate lower than this value when
spraying in AUTO. This value should be checked/changed for
each different nozzle that you use.
APPLICATION NOTE: In certain situations, your ground
speed may be slow enough to result in over application. In
other words, based on ground speed, the actual flow rate
has dropped to the calibrated minimum flow rate.
EXITING CALIBRATION:
Upon completion of the cal i bra-
tion process, exit calibration by pressing and holding the CAL
button until the RED warning light turns off
(ap prox i mate ly
three sec onds).
Basic cal i bra tion is now com plete.
BEFORE
beginning application, confirm that the system is set up to
do the job that you want it to.
Please refer to PreField System
Checkout on page 36 to confirm cal i bra tion settings, nozzle
se lec tion and overall system per for mance.
FLOW CAL:
This po si tion is used to cal i brate the flow me ter
for ac cu rate liquid mea sure ment. When this po si tion is se lect-
ed, the display will alternately show, every three seconds, the
flowmeter calibration value and the total flow
value. The flowmeter calibration value is the
number shown along “CAL” on the display.
The total flow value is the number shown
when “CAL” is not displayed.
The flowmeter
calibration value is typ-
i cal ly selected when
entering the calibration
number from the tag attached to the flowmeter. Enter
the calibration value stamped on the tag attached to the
flowmeter. The total flow value is typ i cal ly selected when
you are fine-tuning the flowmeter cal i bra tion
(please refer to
FineTuning Flow me ter Cal i bra tion).
To select either one of
the values for calibration, simply press the “+” or “-” button
when the val ue you want to select is being displayed. Once
selected, the display will stop al ter nat ing between the two
figures for one minute to allow you to make the appropriate
ad just ment. After one minute fol low ing your last adjustment
to the value, or after you move the rotary selector away from
the FLOW CAL po si tion, the display will alternate between
the two values again.
Every flowmeter is calibrated with water at the factory. If
your spray solution has a specific gravity or viscosity that is
different than water, flowmeter calibration should be done
for the specific solution
(please refer to FineTuning Flow me
ter Calibration.)
Care and Maintenance of your MT-2400
Console
Store the console in a cool dry location if it will not be used for an extended
period of time, such as during the off-season.
As with any electronic equipment, use care in cleaning so that water or other
liquids do not enter the case.
Thoroughly flush Flowmeter with clean water, install plastic shipping plugs
and keep from freezing.
Precautions
•
The input pressure on the glass-filled nylon flowmeter FM750 GFN should
not exceed 100 PSI (689 kpa).
•
Do not expose the flowmeter to liquid temperatures exceeding 130
degrees F (55 degrees C).
•
Some chemicals may damage the turbine (PPS material). If you are in
doubt, contact the chemical manufacturer.
Calibration
(cont)
Entering Calibration Values
(cont)
MIN
FLOW
FLOW
RATE
FLOW
CAL
TOTAL FLOW
