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844E Sprayer Control

INTRODUCTION

Congratulations! And thank you for choosing TeeJet Technologies’ advanced 844 sprayer control system. With its 
proper installation and maintenance, you can enjoy many seasons of accurate and uniform spray application with 

fi

 ngertip convenience and ease of operation. 

Installation and Programming of your control system will be covered in easy to follow, step-by-step instructions.

NOTE:   WE RECOMMEND THAT YOU READ THESE INSTRUCTIONS COMPLETELY before attempting 

installation and programming of your 844 sprayer control. The unit’s performance will depend on its proper 
installation and programming, along with planned preventative maintenance of your entire sprayer.

Easily Accessible 
Programming Mode

is very user-friendly. The 
process is made simple 
with a series of easy-
to-follow, symbol-driven 
programming steps.

8 4 4 E   S P R AY E R   C O N T R O L

Auto/Manual Control

gives the operator a 
manual application option 
for fail-safe reliability.

Master Shutoff 

controls all boom sections 
with one switch.

Color-Coded Tip Selection Bar

allows for easy user programming by 
matching the color of TeeJet VisiFlo® 
spray tips.

Individual Boom Controls

give independent control of up to 

fi

 ve boom sections, 

allowing better management of varying 

fi

 eld features 

like waterways and terraces.

Boost Mode

will temporarily increase or 

decrease application rates for 

special situations, such as in 

patches of heavy weeds.

A Large, Backlit Display

continuously displays all vital spraying 

functions. With a quick glance, the 

display reveals the application rate 

(automatically switches between 

target and actual), pressure, speed, 

and area covered.

Aluminum Console Housing

with sealed computer switch panel 
resists electronic interference and 
damage through rough handling for 
years of reliable service.

e

he 

n

r

B

target a

dd
y

•  Full-featured sprayer control with industry-leading 

ease of use

•  Large back-lit display shows all spraying 

information at a glance

•  Color-coded tip selection for easy programming
•  Communication Port for PC and GPS interfacing

•  Flow or pressure based regulation options provide 

reliability and 

fl

 exibility

•  Five boom section switches plus master shutoff
•  Built in application planning tool
•  Durable, weather-resistant aluminum housing
•  Single cable connection for quick hookup

Summary of Contents for 844E

Page 1: ...8 4 4 E S P R AY E R C O N T R O L Installation Programming and Operating Manual...

Page 2: ...nents 7 Speed Step 1 Location 7 Proximity Sensor optional 7 Speed Step 2 Installing The Wheel Magnets 8 Speed Step 3 Installing the Magnetic Sensor 9 Speed Step 4 Confirming Speed Sensor Installation...

Page 3: ...0 Sensor Type 21 Flow Meter or Pressure Based 21 Flow Meter Calibration 21 Flow Meter Pulses 21 Pressure Transducer 22 Maximum rating P Hi 22 Low Pressure Calibration P rEF 22 Nozzle Spacing 23 Tips P...

Page 4: ...ion 29 Distance Counter 29 Simulated Ground Speed 29 Program Specific Gravity 30 Liquid Specific Gravity Density 30 Communications 31 Minimum Pressure 31 Minimum Regulating Pressure Setting 31 APPLICA...

Page 5: ...OW METER CALIBRATION 48 Method 1 Known Volume 48 Step 1 Known Value 48 Step 2 Programming Calibration Number 48 Step 3 Resetting Volume Counter 48 Step 4 Spraying Known Volume 48 Step 5 Entering in Ne...

Page 6: ...ted all other brand or product names are trademarks or registered trademarks of their respective companies or organizations Limitation of Liability TEEJET TECHNOLOGIES PROVIDES THIS MATERIAL AS IS WIT...

Page 7: ...ip Selection Bar allows for easy user programming by matching the color of TeeJet VisiFlo spray tips Individual Boom Controls give independent control of up to five boom sections allowing better manag...

Page 8: ...gures 1 1 and 1 2 are shown as general guidelines to follow when plumbing the 844 components The type of pump used and location of other components can vary from sprayer to sprayer It is important to...

Page 9: ...4 www teejet com 844E Sprayer Control Figure 1 1 Bypass Plumbing Diagram Pressure Based System Figure 1 2 Bypass Plumbing Diagram Flow Based System...

Page 10: ...844 will need to be properly programmed to reverse the polarity of the valve This step can be found in the System Setup instructions on page 23 When in throttling mode the valve should open when the...

Page 11: ...u are using for valve calibration instructions Pressure Transducer The pressure transducer if used should be installed as close to the spray tips as possible Normally this is at the boom control valve...

Page 12: ...potential errors that are likely to occur from a slipping drive wheel Refer to Figure 1 6 Proximity Sensor optional An optional proximity sensor is available to use in cases where space is limited or...

Page 13: ...t a pattern as shown in Figure 1 7 and drill two 3 8 10 mm holes near the outer edge of the rim if possible and 180 from each other Place the magnets into each of the two holes on the inside rim and s...

Page 14: ...ould be inserted into the mounting clamp and positioned within 1 8 to 3 8 3 10 mm of the wheel magnet Tighten the sensor clamp using the clamp screw per Figure 1 10 Your installation will likely vary...

Page 15: ...sensor passes the sensor a red LED orange LED for proximity sensor on the back of the sensor will light The LCD display on the console will also indicate a speed as the sensor receives and sends elec...

Page 16: ...to accommodate for the cable that will be connected to the right side of the console Console Step 2 Mounting Mount the console to a firm support within the cab area and secure using the slots provided...

Page 17: ...addition of a remote master boom switch in a convenient location i e on the throttle gear shift or floor switch To install a remote boom switch simply install a switch to the brown wire in the power c...

Page 18: ...13 844E Sprayer Crontrol 98 70006 R3 Figure 1 12 Power Connection...

Page 19: ...e installing the sprayer components to be sure the cables are long enough in length from the sensor connections to the 844 console connection If your installation requires longer cables several extens...

Page 20: ...g the flow line main frame of the sprayer or wherever the cables can be conveniently secured Avoid any situation where the cables may lay in puddles or come in contact with extreme heat sources WARNIN...

Page 21: ...c and ground wires to connect them to the boom control valves when using ball valves which should be evenly distributed across the two If both the flow meter and pressure transducer are not used simul...

Page 22: ...nector Speed Sensor Connector Pin No Wire Color Signal Name A Brown Power Out B White Speed Signal C Green Ground Figure 1 18 Pressure Sensor Connector Pressure Sensor Connector Pin No Wire Color Sign...

Page 23: ...Wire Color Signal Name 1 Brown Power Out 2 White Speed Signal NOTE The 844 is designed to handle a maximum of 4 amps per boom section You are now ready to begin the programming of the TeeJet 844 Spra...

Page 24: ...tup programming steps will likely only need to be programmed once to customize the controller to your sprayer For either setup mode if you press and hold the key for three 3 seconds your inputs will b...

Page 25: ...gen per Acre Imperial displays units in Imperial Gallons per Acre and SI displays all units in Metric l min l ha km h cm If you will be using U S measurements no change is necessary Press the key to a...

Page 26: ...If PrS is selected the pressure transducer will be used to control the flow and display the actual pressure The flow meter signals will be ignored Flow Meter Calibration Flow Meter Pulses Default 650...

Page 27: ...Low Pressure Calibration P rEF Default 4 0 This step is used to calibrate the 0 pressure setting of the pressure transducer installed in your system The pressure transducer used with the 844 is a cur...

Page 28: ...fault 6 tips per section in US trF I NP and Si modes Default 12 tips per section 1 0 for the others in nh3 mode While in the Tips Per Boom Section step the symbol will be flashing at the top of the co...

Page 29: ...the calculation would be incorrect Therefore we recommend a 0 00 setting for non linear tips so that the pressure will read 0 at all times instead of an inaccurate pressure Non linear tips should not...

Page 30: ...4 US GPM 15 l min 3 3 Imperial GPM this is the preferred installation position If the default is correct press the key to accept the value and advance to the next step NOTE When programmed in the byp...

Page 31: ...lue can be adjusted to optimize system performance If you notice that the valve seems to search for the programmed application rate by cycling the pressure up and down continuously reduce the number u...

Page 32: ...uously passes through this valve When the valve is activated on flow is directed to the boom section s When the valve is not activated off flow is directed through a bypass port back to the supply tan...

Page 33: ...display The speed sensor is now properly calibrated NOTE Once the auto calibration mode has been activated no other functions of the 844 are possible until the console receives speed impulses for cali...

Page 34: ...is on during this step the console will measure distance If the Master switch is toggled off the console will stop counting distance To clear an existing distance press and keys simultaneously NOTE To...

Page 35: ...usly will clear the value to zero To accept the value and advance to the next programming step press the key If the solution that you are using can not be found on the chart to the right Weight of Sol...

Page 36: ...times when the sprayer speed slows down the control system will regulate the pressure so low that it falls below the manufacturer s recommended pressure for the spray tip or reduces system flow to the...

Page 37: ...e is about to enter the Application Setup Mode Pressing the key a second time within three seconds puts the Control Console into the Application Setup Mode Target Application Rate US Default 20 0 US G...

Page 38: ...h the tabbed color strip at the bottom of the display panel The corresponding flow rate for each color will be displayed in US Gallons Per Minute Liters Per Minute Imperial Gallons Per Minute at 40 ps...

Page 39: ...pressure of 40 psi 2 bar More calculations can be performed in the next programming step When the correct flow rate for the spray tips being used has been entered press the key to accept the value and...

Page 40: ...ly calculate what the pressure would need to be to maintain the target application rate at this speed If the pressure is too high you will need larger spray tips or will have to slow down If the press...

Page 41: ...ust select the D symbol in the Application Setup Mode by pressing the Auto Man key NOTE The tip flow rate in the lower right corner of the display will always display the flow rate in US Gallons Per M...

Page 42: ...AN mode 7 Now toggle the Master boom switch to on 8 Adjust the pressure with the and or keys 9 While spraying adjust the pressure with the key to the system s minimum point 10 Now press the key for 3...

Page 43: ...ternate displays of the application area Ac for acres or Ha for hectares and the total volume applied The display will alternate approximately every three seconds 7 While spraying with the master boom...

Page 44: ...plication rate changes it is not necessary to set the Auto Man to MAN mode To return the application rate to its programmed status you may use the or keys individually to step back to the application...

Page 45: ...NOTE Not all 844 models contain this feature If the display makes no change when pressing on the key while spraying in the normal operating mode then this feature is not available with this console Ap...

Page 46: ...he printer has power Simultaneously press and hold the and keys for three seconds or until the printer begins printing When the printer is finished the area and volume counters in the lower right of t...

Page 47: ...he correct color or the flow rate in US GPM l min Imp GPM of the tips you are using at 40 psi 2 bar For new tips this can be found in your TeeJet Catalog If the tips have been used and possibly worn m...

Page 48: ...and secure with the retaining clip If you have a rapid check flow meter remove the turbine from the flow meter body by unthreading it at the sensor Check the turbine for obstructions Flush with clean...

Page 49: ...A Stalled Flow meter Make sure there is no pressure in the system Remove the flow meter from the discharge line Inspect the inside of the meter for obstructions The turbine should move freely If it do...

Page 50: ...ressure Regulating Mode is programmed incorrectly Check the Pressure Regulating Mode in the System Setup mode of the 844 Refer to page 23 of the 844 Installation manual to insure that the controller h...

Page 51: ...cm on the boom If banding enter the band width as your spacing If directed spraying enter the row spacing divided by the number of nozzles per row C Incorrect capacity nozzles The Nozzle Selection se...

Page 52: ...e F Radar installed incorrectly Precise installation of the Radar is critical to it working correctly Thoroughly review the manual provided with the Radar sensor you are using 7 No regulation in Auto...

Page 53: ...splayed in the lower right portion of the display Display alternates between Ac Ha covered and the volume sprayed through the flow meter To reset this number press and hold the and keys simultaneously...

Page 54: ...10 tips x 0 4 GPM 1 29 LPM 0 32 Imp GPM 4GPM 12 9 LPM 3 2 Imp GPM Step 4 Measure Turn controller on and activate pump Toggle on the Master Boom Switch and the number of boom sections to be measured In...

Page 55: ...8 4 4 E S P R A Y E R C O N T R O L 1801 Business Park Drive Springfield Illinois 62703 USA Tel 217 747 0235 Fax 217 753 8426 www teejet com 98 70006 R3 TeeJet Technologies 2011...

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