Teejet 844-AB Sprayer Control Manual de usuario descargar pdf (Pagina 13)

98-70007-EN R4

844-AB

Reference ow rate per section

AB mode – The ow rate for each section of the sprayer must be

input into the 844-AB console so that the necessary adjustments

can be made when boom sections are shut off. The console is

programmed to treat the left and right boom sections as symmetrical;

therefore the console treats the ow rate for the lower left section

(L1) identically to the ow rate of the lower right section (R1). The

ow rate entered for section 1 will serve as reference ow for L1 and/

or R1.

Figure 34: AB flow rate illustration

HC mode – The ow rate for a single nozzle must be input into the

844-AB console so that the necessary adjustments can be made

when boom sections are shut off. If several different nozzles are

mounted to spray on a face, they should be considered as ONE

nozzle and the total ow should be programmed.

Figure 35: HC flow rate illustration

1. Select section

Up to twelve preset ow congurations can be entered into the

844-AB. The presets are represented by the numbers “1-12” at the

bottom of the display. The arrow symbol indicates which preset is

being programmed.

Select which preset ow conguration to programme. Use the Plus

or Minus keys to toggle through the twelve presets.

Figure 36: Preset selection

SEL

ConF

1 2 3 4 5 6 7 8 9 10 11 12

Press the Auto/man key to setup the reference pressure and

reference ow of the selected preset.

Press the Programme key to advance to the next programme

step in System setup mode. It is not necessary to programme all

twelve presets unless they are to be used. Programme the number of

presets required. Press the Programme key again to continue in

System setup mode.

2. Reference pressure

Before entering the reference ow, determine the pressure at which

the ow will be referenced. Use the Plus or Minus keys to

adjust the value of the pressure Bar to be used as ow reference.

The pressure selected to reference ow is not critical (any pressure

can be used). Select a pressure that is close to normal operating

pressure or select a pressure from the ow rate chart for the nozzles

being used.

Figure 37: Reference pressure

REF

1 2 3 4 5 6 7 8 9 10 11 12

3.0

Bar

Press the Auto/man key to advance to the reference ow for

current preset section.

3. Reference ow

Calculate (add) the ow rates at the referenced pressure from all

nozzles on the current preset section (left or right should be the

same). Enter the total ow rate in litres/min. for the current preset

section. Use the Plus or Minus keys to adjust the value.

Figure 38: Reference flow (Section one entry)

1.36

1 2 3 4 5 6 7 8 9 10 11 12

LPm

-1-

3.0

Bar

Press the Auto/man key to return to the select section option.

Next section

Repeat steps 1-3 for all sections as needed.

Figure 39: Reference flow (Section two entry)

0.85

1 2 3 4 5 6 7 8 9 10 11 12

LPM

-1-

3.0

Bar

Once programming is complete for all presets, press the

Programme key to advance to the next programming step.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 23 24

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Teejet 844-AB Sprayer Control Manual de usuario Pagina 13

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