Before beginning actual spraying, perform the following
“Pre-field”
procedure to ensure that your valve settings,
nozzle selection and desired speed range will allow the
MT-3405D to provide the required application control. This
procedure should be repeated for each new nozzle se lec-
tion and/or application rate. By performing all of the steps
listed below, you set up your system to allow the MT-3405D
to perform at optimum level. Fill your sprayer tank with
clean water.
DO NOT
use chemicals until the entire sys tem is
completely checked out and operating properly.
IMPORTANT NOTE: Most nozzles will maintain a good pattern
over a maximum speed range of two to one. (For example,
if your maximum speed is 12, your minimum speed shouldn’t
go below 6.)
NOTE: Pre-field System Checkout is a procedure performed
while the console is in the CAL mode. The Red WARNING
light will be lit during the procedure and “CAL” on the
display will be flashing.
Completely close range adjust valve (if installed), and ag i ta-
tion valve (if installed).
Start vehicle and pump, bring the engine up to normal
operating RPM.
DO NOT
exceed safe system pressure.
ENTER MAXIMUM APPLICATION TEST SPEED INTO
CON SOLE
With console in HOLD, enter calibration mode. Push and
hold (CAL) button. The CAL icon will appear on display
and red light will be on. Turn rotary switch to TEST SPEED
position. Use the square “+” or “-” button to enter maximum
application speed. Do not exit cal i bra tion mode. CAL will
flash on the display indicating TEST SPEED mode.
Select manual “MAN” control mode and turn all booms ON.
Turn rotary switch to APP. RATE position and hold the
triangular “+” button for approximately 30 seconds
to completely open the servo valve (control valve).
NOTE: “+” must increase and “-” decrease output.
If
opposite, check Inline/Bypass setting on page 28.
CAN’T GET THERE?
If you can’t get to the desired ap pli ca tion rate, you may
need different nozzles, pump, or you may need to make
modifications to your plumbing configuration.
Please refer
to Trou ble shoot ing Plumbing on pages 43-44.
Adjust agitation valve for desired agitation. If range valve is
installed, adjust range valve until display reads 10% higher
than the desired application rate.
Now is a good time to confirm that GPA, GPM, MPH, WIDTH
and PSI all coincide with the nozzle man u fac tur er’s charts.
PSI may be slightly higher than indicated by the charts due to
pressure drop across the solenoid valves, nozzle diaphragm
check valves, nozzle screens, etc.
ENTER MINIMUM APPLICATION TEST SPEED INTO
CON SOLE
Turn rotary switch to TEST SPEED position. Use the square “+”
or “-” button to enter minimum application speed.
DO NOT
exit calibration mode.
(Remember, the minimum application
speed is not normally less than half of the maximum
application speed.)
Turn booms ON
(Make certain system is in Manual mode),
turn
rotary switch to APP. RATE position and hold the triangular
“-” button for approximately 30 seconds to completely close
the servo valve (control valve). The display should now read
less than the desired application rate.
It is not normally a problem if the application rate goes all
the way to zero when holding the “-” button for 30 sec onds,
as long as it goes back up when the “+” but ton is held.
CAN’T GET THERE?
If holding the “-” button does not get the application rate
to go below the desired ap pli ca tion rate, please refer to
Troubleshooting Plumbing.
Inline and Bypass
ENTER TARGET APPLICATION TEST SPEED INTO CON SOLE
Turn booms OFF. Turn rotary switch to TEST SPEED position.
Use the “+” or “-” button to enter target application speed.
DO NOT
exit calibration mode.
Select automatic “AUTO” control mode, turn booms ON and turn
rotary switch to APP. RATE position. The console should take
control and lock-on to your calibrated target application rate.
•
If you calibrated your ADJUST RATE to zero (.0),
dis re gard the following steps.
For the selected channel, press the triangle shaped “+”
button and release. The display will momentarily show the
new target rate (target rate + ad just rate) and then lock on
to that rate.
Press the “-” button and release. The display will mo men-
tari ly show the new target rate (target rate - ad just rate) and
then lock on to that rate.
If the application rate was correctly displayed dur ing man u al
“MAN” control mode, but registered too high in automatic
“AUTO” control mode, the calibration val ue for MIN FLOW is
set too high.
At this point, the Pre-Field System Check-Out is complete.
TEST SPEED will automatically cancel when you exit the CAL
mode or when power to the console is turned OFF.
39
Pre-Field Sys tem Checkout
(cont)
Inline Servo
Summary of Contents for DUAL CONTROL MT-3405D
Page 1: ...REFERENCE MANUAL DUAL CONTROL AUTOMATIC RATE CONTROLLER MT 3405D ...
Page 47: ...Appendices 47 ...
Page 82: ...82 NOTES ...
Page 83: ......