Teejet 844 Sprayer Control Manuel d'utilisateur

Installation,Programmingand OperatingManualSpraying Systems Co.®

Installing the Wheel MagnetsCheck for pre-drilled holes in the wheel rim. If pre-drilled holes are not available,layout a pattern as shown in Figure 4

Confirming Speed Sensor InstallationMagnetic Wheel Sensor:After your wheel or proximity sensor is installed and once the 844 console isinstalled and p

MOUNTING THE TEEJET 844 CONSOLELocationDetermine the best location for the control console in the cab or operator’scompartment. Allow sufficient clear

Power ConnectionLocate the power cable which has a black connector on one end, and two batteryterminal rings on the other. Extend the battery terminal

Connecting Component Cables to ConsoleNow that you have the console installed you can begin connecting it to the othercomponents of the 844 system. Th

CONNECTING SYSTEM COMPONENTS TO THE CONTROL CONSOLETwo cables are provided to connect the sprayer control components to theControl Console: The “Sen

Wiring LayoutDetermine the best cable routing to the sprayer control components on thesprayer. This could be along the flow line, main frame of the sp

Making the ConnectionsNow, extend the cable containing the leads to the Flow meter or Pressure Sensor, and Wheel Sensor or Radar Sensor to the furthes

16Programming GuidelinesIMPORTANT PRELIMINARY INFORMATIONBefore you begin, we recommend that you review the following ProgrammingGuidelines that contr

To begin the programming process: Read above for programming tips. Be sure the “master” boom toggle switch is “OFF.” Turn console “ON” by depressin

Cable ConnectionsBATTERYBATTERYCABLEBATTERYCABLELEAD844 SPRAYER CONTROLFLOW METER(OPTION 1)PRESSURE TRANDUCER(OPTION 2)SPEEDSENSORSENSOR ENDCABLESENSO

If, however, you have installed a pressure transducer instead, use the orkey to select “PrS” for a pressure based system. Then, depress the

19Pressure Transducer Low Pressure Calibration (P rEF)Default = 4.0This step is used to calibrate the “0” pressure setting of the pressure transduceri

Number of Spray Tips Per Boom SectionDefault = 6 (tips per section in US, trF, iNp and SI Modes)Default = 12 (tips per section 1, 0 for the others in

Warning: If the user is using tips other than the TeeJet®‚ VisiFlo®‚ brand,the corresponding colors may not match. In this case, the user shoulddeterm

22Regulation Adjustment SpeedDefault = 9.5 (bYP Mode)While in this step, the symbol will be flashing at the top of the console display.This st

23Speed Sensor TypeDefault = 250Note: During Speed Calibration, the 844 will automatically sense whether a Wheel Speed or Radar Speed Sensor is being

24RADAR SPEED PULSESAutomatic Calibration:The automatic calibration of a Radar speed sensor is similar to the automaticcalibration of a wheel speed se

25Liquid Specific Gravity (Density)Default = 1.00While in the Liquid Specific Gravity (Density) Programming Step, the Dsymbol, will be flashing at the

Minimum Regulating Pressure SettingDefault = 10 PSI (0.7 bar)This programming step allows you to set the minimum pressure that the sprayercontrol will

27APPLICATION SETUP MODEThe Application Setup Mode contains the programming steps that are mostfrequently changed (target application rate, and nozzle

Introduction 2Sprayer Control Installation 4Mounting Sprayer Components 4Pressure Regulator in Bypass Mode 4Pressure Regulator in Throttling Mode 5Flo

28Select the representative color to match the spray tips being used to apply thedesired application rate. Use the or keys to toggle the

29The 844 will immediately calculate what the pressure would need to be tomaintain the target application rate at this speed. If the pressure is too h

30SPRAYER CHECKOUTBefore spraying check all connections related to the Sprayer Control assembly.Particular attention should be given to the speed sens

31THE SPRAYING OPERATIONYou have filled the sprayer tank and have thoroughly mixed the chemical(s). Yourapplication rate has been determined as well a

BOOST MODEThere may be instances where ”on the go” increased or decreased chemicalapplication may be required in certain areas of your field. In situa

FLOW RATE FEATUREThe 844 Sprayer Control will measure a flow rate moving through the flow meterin GPM (LPM) {Imp GPM}. This feature is activated by pr

34FeaturesPRINTINGOptional printers are available for printing a spraying report directly from the 844.This printing feature is only available on 844

CONDITION POSSIBLE CAUSES SOLUTION1 Application Rate Units (GPA, G/1000 ft2 A Continuous discrepancy of 10% or more Check all components and program

36CONDITION POSSIBLE CAUSES SOLUTIONE Flow meter plumbed incorrectly A flow directional arrow is located on the body ofthe flow meter. Plumb the flow

37CONDITION POSSIBLE CAUSES SOLUTION6 Actual total volume applied in GPA, A Speed sensor not calibrated correctly. Recalibrate the magnetic or radar s

Congratulations! And thank you for choosing Spraying Systems’ advanced844 sprayer control system. With its proper installation and maintenance, youcan

Flow Meter CalibrationThe flow meter supplied with your system has been calibrated at the factory andunder normal circumstances there may be no need t

Example: If the volume displayed is 5% too high, then increase the flowmeter calibration number by 5%. If the volume displayed is 5% too low,then decr

40Terms and Conditions of Sale(1) MODIFICATION OF TERMSSeller’s acceptance of any order is expressly subject toBuyer’s assent to each and all of the t

P.O. Box 7900Wheaton, Illinois 60189-7900 USAPhone (630) 665-5000 • Fax (630) [email protected]/99 MI844Spraying Systems Co.®

3The TeeJet®844 SprayerControl basic package forflow based systemscould consist of thecomponents shown in thisphotograph.They include:(1) Computerized

4PRESSURE REGULATOR IN BYPASS MODEAll pressure regulating valves for the 844 will be wired for use in a by-passsystem. While plumbed in a by-pass mode

5PRESSURE REGULATOR IN THROTTLING MODEIn large flow situations, the pressure regulating valve, as shown in Figures 8 and8A, can be located in the supp

FLOW METERTo ensure accurate readings, the flow meter (if used) must be mounted 10˝ to 12˝(25-35 cm) from other pipe fittings, preferably in a vertica

Components: Two magnets, Sensor with attached connector cable, andmounting hardware.If you are installing a radar ground speed sensor, follow the inst