TeeJet 844-AB User Manual
844-AB
SPRAYER CONTROL
USER GUIDE MANUAL
For use with software version 4.02.
Copyrights
© 2013 TeeJet Technologies. All rights reserved. No part of this document or the computer programmes described in it may be reproduced,
copied, photocopied, translated, or reduced in any form or by any means, electronic or machine readable, recording or otherwise, without
prior written consent from TeeJet Technologies.
Trademarks
Unless otherwise noted, all other brand or product names are trademarks or registered trademarks of their respective companies or
organisations.
Limitation of liability
TEEJET TECHNOLOGIES PROVIDES THIS MATERIAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR
IMPLIED. NO COPYRIGHT LIABILITY OR PATENT IS ASSUMED. IN NO EVENT SHALL TEEJET TECHNOLOGIES BE LIABLE FOR ANY
LOSS OF BUSINESS, LOSS OF PROFIT, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS, OR FOR INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY KIND, EVEN IF TEEJET TECHNOLOGIES HAS BEEN ADVISED OF SUCH
DAMAGES ARISING FROM TEEJET TECHNOLOGIES SOFTWARE.
844-AB
Table of Contents
CHAPTER 1 - INTRODUCTION 3
Power on the console .......................................................................................................................................................................................... 3
Power o the console ......................................................................................................................................................................................... 3
CHAPTER 2 - APPLICATION MODE 4
Airblast mode ......................................................................................................................................................................................................... 4
Vineyard mode ...................................................................................................................................................................................................... 4
CHAPTER 3 - OEM SETUP 4
Application type ................................................................................................................................................................................................... 4
Number of sections .............................................................................................................................................................................................. 4
Minimum voltage ................................................................................................................................................................................................. 5
Deadband ................................................................................................................................................................................................................ 5
Rotation speed ...................................................................................................................................................................................................... 5
Display stable ......................................................................................................................................................................................................... 5
Total area ................................................................................................................................................................................................................. 5
Maximum speed ................................................................................................................................................................................................... 5
Memory option ..................................................................................................................................................................................................... 6
Tank content ........................................................................................................................................................................................................... 6
CHAPTER 4 - SYSTEM SETUP 6
Units of measurement ........................................................................................................................................................................................ 6
Reset to default ..............................................................................................................................................................................7
Sensor selection .................................................................................................................................................................................................... 7
Flow meter impulses ........................................................................................................................................................................................... 7
Manual entry ..................................................................................................................................................................................7
Automatic calibration .....................................................................................................................................................................7
Pressure transducer low pressure calibration (P Ref ) .............................................................................................................................. 8
Manual entry ..................................................................................................................................................................................8
Automatic calibration .....................................................................................................................................................................8
Pressure transducer maximum rating (PHI) ............................................................................................................................................... 8
Speed sensor calibration.................................................................................................................................................................................... 9
Proximity/magnetic impulses .........................................................................................................................................................9
Automatic calibration..............................................................................................................................................................9
Manual calculation .................................................................................................................................................................9
Radar speed impulses ...................................................................................................................................................................9
Automatic calibration............................................................................................................................................................10
Manual calculation ...............................................................................................................................................................10
Simulated ground speed .................................................................................................................................................................................10
Reference ow rate per section .....................................................................................................................................................................11
1. Select section ..........................................................................................................................................................................11
2. Reference pressure .................................................................................................................................................................11
3. Reference ow ......................................................................................................................................................................... 11
Next section ................................................................................................................................................................................. 11
Regulating valve response time ....................................................................................................................................................................12
Pressure regulating mode ...............................................................................................................................................................................12
Minimum pressure setting ..............................................................................................................................................................................12
Density (Liquid specic gravity) .................................................................................................................................................................... 13
Communications ................................................................................................................................................................................................13
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844-AB
Faces per section setting (HC mode only) .................................................................................................................................................13
CHAPTER 5 - SWATH WIDTH PRESETS 14
Selecting swath preset .....................................................................................................................................................................................14
CHAPTER 6 - APPLICATION SETUP 15
Preset ow rate selection .................................................................................................................................................................................15
Nozzles per face .................................................................................................................................................................................................15
Target application rate ...................................................................................................................................................................................... 15
Calculation diagnostic .....................................................................................................................................................................................15
Adjust pressure ............................................................................................................................................................................16
Adjust speed ................................................................................................................................................................................16
Liquid density ......................................................................................................................................................................................................16
CHAPTER 7 - OPERATIONS 17
Spraying .................................................................................................................................................................................................................17
CHAPTER 8 - FEATURES 18
Boost mode...........................................................................................................................................................................................................18
Area/volume display..........................................................................................................................................................................................18
Application alarm ............................................................................................................................................................................................... 18
No ow alarm ....................................................................................................................................................................................................... 19
Automatic power down ...................................................................................................................................................................................19
Printing ...................................................................................................................................................................................................................19
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844-AB
CHAPTER 1 - INTRODUCTION
This user guide provides information for software version 4.02.
Make sure that all hardware components are properly installed and tested. Before starting the programming process, conrm that the console
and all sensors are working properly.
IMPORTANT! Before beginning, review the following programme guidelines that control the programming process.
To exit any Setup mode, press and hold the Programme key for 3 seconds. The inputs are stored and the computer will exit Programme
mode.
To increase the value of a programmable digit, press the Plus key. To decrease the value, press the Minus key. These keys are located
directly to the right of the display. For some programme steps, press and hold the Plus and Minus keys to quickly change the values.
Press the Plus and Minus keys once to increment/decrement the values by one unit.
Press and hold the Plus and Minus keys simultaneously to reset the value to “0” or begin automatic calibration.
Press the Programme key to advance the system to the next programme step. After the nal programme step is complete, the console will
nish the programming loop and return to the initial programming step.
System setup mode contains the options that customize the controller to the sprayer or sprayer components. These include calibration steps
and parameters that seldom change once programmed.
Application setup mode contains settings that are frequently changed (nozzle spacing, number of nozzles per boom section, density, nozzles
used and target application rate).
Figure 1: 844-AB console
On/programme button Display
Auto/manual mode indicator
Auto/man key
Boom section controlsMaster switch
Power on the console
The 844-AB console can be powered on by pressing the
Programme key one time. The console will initially display the
software version at the top of the screen and the serial number of the
console at the bottom of the screen. After approximately 5 seconds,
the console will enter into swath width view.
Press the Programme key to advance to normal Operations
mode.
Figure 2: Power on the console
Plus and minus keys
GREEN button
Power o the console
To power off the 844-AB console, press and release the Minus
and Programme keys simultaneously. The console will save new
information (area and volume counters) to memory before it powers
down. “Off” will be displayed on the console, followed by a 5-second
countdown, indicating the console is about to power down. The
console also has an automatic power down feature. This is described
in further detail in the Features section of this User guide.
Figure 3: Power off the console
ABL
g22
1 2 3 4 5 6 7 8 9 10 11 12
4.03
5555
OFF
5
1 2 3 4 5 6 7 8 9 10 11 12
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CHAPTER 2 - APPLICATION MODE
The 844-AB gives the possibility of working in two different ways
to t the application. Therefore, the console should be set up and
consequent programming and working features will be dependant of
the chosen mode.
Airblast mode
This mode is designed to work with Airblast sprayers, mostly
spraying on two sides (left and right) with the possibility to switch
on or off sections in the height. The working width is dened by
the distance between two rows of trees. This mode is called AB
(airblast).
Figure 4: Airblast (AB) principle
CHAPTER 3 - OEM SETUP
OEM setup mode contains the options that customize the controller
to the sprayer or sprayer components. These include calibration
steps and parameters that will never change once programmed.
ADVISORY! OEM setup parameters (except HC/AB mode) should
not be changed unless advised by TeeJet Technologies or an
authorized dealer.
To enter System setup mode, power off the console. Press and hold
the Plus and Minus keys simultaneously. While holding the
Plus and Minus keys, also press the Programme key four
times (within 3 seconds) and then release all keys to enter OEM
setup mode.
Press and hold the Programme key for three seconds to exit OEM
setup mode. Changes will be saved to the console’s memory.
Application type
As explained above, the 844-AB is capable of working in either
Airblast (AB) or Vineyard (HC) mode.
Use the Plus and Minus keys to switch from AB to HC mode.
Press the Programme key to accept the value and advance to the
next programme step.
Figure 6: Application type
Vineyard mode
This mode is designed to work with vineyard sprayers that are
spraying horizontally. Several rows are covered and sections can be
switched on or off to adapt the working width. Each section covers
a number of faces. The working width is dened by the number of
faces and the row width.
One or more nozzles can be spraying each face. If all nozzles
spraying on a face are not equal, they should be considered as a
unique nozzle and the total ow has to be set up in the conguration
menu. But all faces have to be sprayed equally. This mode is called
HC (vineyard).
Figure 5: Vineyard (HC) principle
typ
1 2 3 4 5 6 7 8 9 10 11 12
AB
Number of sections
This will determine the maximum number of sections available on the
sprayer.
◄In AB mode, only even values are allowed (2,4,6).
◄In HC mode, all values between 1 and 7 are allowed.
Figure 7: Number of sections
nr
4
se[
1 2 3 4 5 6 7 8 9 10 11 12
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844-AB
Minimum voltage
This will determine the minimum voltage that can be applied to the
regulation valve. If too low, the valve won’t ne tune the dose rate. If
too high, the valve could have some unstable regulation.
Figure 8: Minimum voltage
3.5
Min
1 2 3 4 5 6 7 8 9 10 11 12
Deadband
This will determine the regulation dead band. This setting will avoid
continuous regulation when the dose rate is very close to the target
doise rate. If too low, the valve could have some unstable regulation.
If too high, the real dose rate could be far away from the target.
Figure 9: Deadband
STp
bnd
1 2 3 4 5 6 7 8 9 10 11 12
Rotation speed
This will determine the time needed by the regulation valve to travel
at maximum speed from fully close to fully open. This value must be
set according to the specications of the valve.
UOlt
1.5
Display stable
This will determine allowed tolerance percentage on the displayed
dose rate. If the difference between the real and the target dose
rates is smaller than it, the target will be displayed.
Figure 11: Display stable
5
dsp
1 2 3 4 5 6 7 8 9 10 11 12
Total area
This counter is a hidden counter that can be reset only by the
manufacturer. It shows the total area covered since last reset.
Figure 12: Total area
stbl
tot
Ha
21341
1 2 3 4 5 6 7 8 9 10 11 12
Maximum speed
This counter is a hidden counter that can be reset only by the
manufacturer. It shows the maximum speed reached by the sprayer.
Figure 13: Maximum speed
Figure 10: Rotation speed
rot
spd
1 2 3 4 5 6 7 8 9 10 11 12
6
seC
25.2
1 2 3 4 5 6 7 8 9 10 11 12
Km/h
XI6H
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844-AB
Memory option
This feature enables the user counters.
Select NO to disable this feature or YES to enable it.
Figure 14: Memory option
No
mem
1 2 3 4 5 6 7 8 9 10 11 12
CHAPTER 4 - SYSTEM SETUP
System setup mode contains the options that customize the
controller to the sprayer or sprayer components. These include
calibration steps and parameters that will rarely change once
programmed.
Table 1: System setup mode sequence
Units of measurement
Sensor selection
Flow meter impulses
Pressure transducer low pressure calibration (P Ref)
Pressure transducer maximum rating (P HI)
Speed sensor calibration*
Simulated ground speed
Reference ow rate per
section
Regulating valve response time
Pressure regulating mode
Minimum pressure setting
Density (Liquid specic gravity)
Communications
Faces per section setting, Section 1 (HC Mode only)**
Faces per section setting, Section 2 (HC Mode only)**
Faces per section setting, Section 3 (HC Mode only)**
Faces per section setting, Section 4 (HC Mode only)**
Faces per section setting, Section 5 (HC Mode only)**
Faces per section setting, Section 6 (HC Mode only)**
Faces per section setting, Section 7 (HC Mode only)**
* During speed calibration, the 844-AB will automatically sense whether a Wheel
speed or Radar speed sensor is being used.
** The number of sections available is determined within the OEM setup options.
Proximity/magnetic impulses
Radar speed impulses
Select section
Reference pressure
Reference ow
Repeat for section 2 to 12
Tank content
This feature enables a tank content counter. This counter should be
set after lling the tank and will count down according to the sprayed
volume. A zero value will disable this feature.
Figure 15: Tank content
T==1
0
1 2 3 4 5 6 7 8 9 10 11 12
To enter System setup mode, press and hold the Plus and Minus
keys simultaneously. While holding the Plus and Minus keys,
also press the Programme key twice (within 3 seconds) and then
release all keys to enter System setup mode.
Press and hold the Programme key for three seconds to exit
System setup mode. Changes will be saved to the console’s
memory.
NOTE: The 844-AB console will not automatically power down
during System setup mode. The system must be exited by
holding the Programme key for three seconds. A loss of
power to the controller during System setup mode will erase
all changes not previously saved to system memory.
Units of measurement
The 844-AB is capable of working in either US or SI (Standard
international metric). Use the Plus and Minus keys to switch
units. Press the Programme key to accept the value and advance
to the next programme step.
Figure 16: Units of measurement selection
US
1 2 3 4 5 6 7 8 9 10 11 12
Table 2: Units of measurement
US SI
Speed MPH (miles per hour) Km/h (kilometres per hour)
Flow GPM (gallons per minute) L/min (litres per minute)
Area Acres Ha (hectares)
Pressure PSI (pounds per square inch) Bar
Volume Gal (gallon) L (litre)
Speed impulses
Tree spacing Inch cm (centimetre)
Dose rate GPA (gallons per acre) L/Ha (litres per hectare)
impulses/300ft
(impulses per 300 feet)
impulses/100m
(impluses per 100 metres)
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