This procedure is used to verify and fine-tune the flowmeter
calibration. Every flowmeter is calibrated with water at the
factory and stamped with a calibration val ue. Enter that value
as a starting point and use this pro ce dure to fine-tune that
value for your specific in stal la tion and spray ing application.
This procedure should be re peat ed each time a new solution
is being applied
(differ ing so lu tions will have a different
spe cif ic gravities and different flow char ac ter is tics)
or when
the flowmeter in stal la tion has been altered.
Controller 1 and Controller 2 each have their own flowmeter.
The following procedure
(Illustrations)
show the required
switch settings for either controller, denoted by Ch1 or Ch2.
PROCEDURE
1. Put enough water in the sprayer tank to perform this test.
(Preferably 100 gallons or more. The larg er the volume of
water used, the more accurate will be the calibration.)
2. Start sprayer pump and turn on booms. Run enough
water to purge all air from lines. Turn off booms but
leave pump running.
3. Turn console rotary selector to the VOLUME po si tion.
Select the counter (1-3) that you want to use. Press and
hold the RESET button until the dis play reads 0.
4. Turn on all booms, and run a known amount of water
(preferably 100 gallons or more).
*
For Ch1:
Turn on all booms, and set Ch1 switch to MAN.
For Ch2:
Set Ch2 switch to MAN (turns single boom on).
Ch1 much be set as shown in Ch2 illustration.
5. Put the controller in Hold:
For Ch1:
Set the Ch1 switch to MASTER HOLD.
For Ch2:
Set the Ch2 switch to OFF (turns single boom off).
Compare the console’s VOLUME reading with the known
amount of water run. If the two amounts are within one
or two percent, no fine tuning is required. If the two
amounts are more than two or three percent different,
continue with the next step.
6. With the console still in the VOLUME position, enter
calibration, hold the CAL button until red warning light
comes on; about one second). The dis play will show the
flowmeter calibration value and the CAL icon.
7. Momentarily press the CAL button. The CAL icon will
begin to flash and the total volume will be displayed.
See Illustrations.
8. When the TOTAL FLOW value is displayed, use the “+” or
“-” button to adjust the value to match the amount of
water run.
9. Momentarily press the CAL button. The CAL icon and
the flowmeter calibration number will be displayed.
You will notice that the flowmeter calibration value has
changed. Write down the new flowmeter calibration
value. This is your
“fine tuned”
calibration value, keep it
for future reference.
10. Exit calibration by holding the “CAL” button until the red
warning light goes out (about one second).
*
The most accurate method to measure the volume of
water run is to place a container under EVERY nozzle and
add together the amount from each nozzle. This assures that
100 percent of the water is collected and that all nozzles are
spraying equally. It is important to perform this pro ce dure
at a flow rate similar to that which will be used in the field. It
is also possible to disconnect the main boom line and run it
to a large measuring container but a valve must be installed
and properly adjusted to simulate actual field conditions.
Appendix C
Fine Tuning Flowmeter Calibration Value
(If system is set up for NH3 application, see page 70)
WIDTH
CAL
FLOW
CAL
MIN
FLOW
ADJUST
RATE
TARGET
RATE
SPEED
CAL
INLINE
BYPASS
TEST
SPEED
VOLUME /
MINUTE
DISTANCE
AREA /
HOUR
VOLUME
(1) (2) (3)
RATE
SPEED
AREA
(1) (2) (3)
ON
OFF
1
2
3
4
5
CONTROLLER 1 B O O M S
ON
OFF
CAL
CONT
SEL
RESET
CONTROLLER 1
APPLICATION RATE 2
TANK
___
CONTROLLER 2
APPLICATION RATE 1
AUTO
MAN
OFF
AUTO
MAN
MASTER
HOLD
MANAUTO
CAL
HOLD
CAL
Ch1: “Fine Tuning” Flowmeter
Ch2: “Fine Tuning” Flowmeter
For Ch2 tuning to work, Ch1 must be set as follows:
•
All Ch1 booms must be OFF
•
Ch1 switch must be set to Run (i.e. not MasterHold)
Ch1
WIDTH
CAL
FLOW
CAL
MIN
FLOW
ADJUST
RATE
TARGET
RATE
SPEED
CAL
INLINE
BYPASS
TEST
SPEED
VOLUME /
MINUTE
DISTANCE
AREA /
HOUR
VOLUME
(1) (2) (3)
RATE
SPEED
AREA
(1) (2) (3)
ON
OFF
1
2
3
4
5
CONTROLLER 1 B O O M S
ON
OFF
CAL
CONT
SEL
RESET
CONTROLLER 1
APPLICATION RATE 2
TANK
___
CONTROLLER 2
APPLICATION RATE 1
AUTO
MAN
OFF
AUTO
MAN
MASTER
HOLD
MANAUTO
CAL
Ch2
51
Содержание DUAL CONTROL MT-3405D
Страница 1: ...REFERENCE MANUAL DUAL CONTROL AUTOMATIC RATE CONTROLLER MT 3405D ...
Страница 47: ...Appendices 47 ...
Страница 56: ...P N 14366 56 Appendix F cont MT 3405D NH3 Specific cont MT 3405D Wiring Diagram for NH3 Channel 1 ...
Страница 82: ...82 NOTES ...
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