Teejet 844-E Sprayer Control Manual do Utilizador descarregar pdf (Página 19)

98-70006-ENUS R4

844-E Sprayer Control

Pressure Transducer

Maximum rating (P Hi)

Default = 150 (PSI in US, trF and I

P Modes)

Default = 10.0 (bar in Si Mode)

This step is used to set the maximum rating of the pressure

transducer in your system. This number can be found stamped on the

pressure transducer itself. If your transducer has a maximum rating of

145 psi (10 bar in SI mode) and that number is shown in the display,

then advance to the next step by pressing the Program key . If,

however, the maximum rating is 363 psi (25 bar in SI mode), use

the Plus key and Minus key to change the value. Press the

Program key to advance to the next step.

NOTE: If you are not using a pressure transducer but are using a flow

meter instead, skip this step by pressing , leaving the default

value programmed.

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 current type transducer and uses a 4-20 mA reading. 4.0

mA represents 0 pressure.

This step uses an auto-calibration feature to calibrate the transducer.

Make sure that the sprayer pump is off and there is absolutely no

pressure in the system. Press and release the Plus key and Minus

key simultaneously to activate the auto calibration feature. You

will see the message “NES” in the lower left of the display and the

lower right of the display count the numbers “0” through “9”. When the

display nishes counting, a number close to 4.0 should be displayed.

The low pressure value of the transducer is now calibrated.

Press the Program key to advance to the next step.

NOTE: If you have selected a “FLO” based system, skip this step

by pressing the Program key and leave this value at the

default of 4.0.

Nozzle Spacing

Default = 20 (inches in US, trF, and INP Modes)

Default = 50 (centimeters in Si Mode)

Default = 30 (inches in nh3 Mode)

While in the Nozzle Spacing step, the nozzle spacing symbol

will

be ashing at the top of the console display. Nozzle spacing should be

recorded in inches (cm in SI mode).

If the default value is correct, press the Program key to accept

the value. If the nozzle spacing is different than that shown as a

default, then add or reduce this number by using the Plus key

or Minus key keys to record the new value. Pressing the Plus

key and Minus key simultaneously will clear the value to

zero.

When the correct value has been entered, press the

Program key to accept the value and advance to the next step.

When broadcast or broad acre spraying, enter the nozzle spacing in

the display.

If banding, enter the band width as your spacing. If directed spraying,

enter the row spacing divided by the number of nozzles per row as your

spacing.

NOTE: All Application rate readings (US GPA, G/1000 ft

, #N/acre,

Imp. GPA, and l/ha) and area readings are expressed in treated

acres (hectares).

Tips Per Boom Section

Number of Spray Tips Per Boom Section

Default = 6 (tips per section in US, trF, I

P 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 #tips symbol

will be

ashing at the top of the console display. The console will also display

“SEC 1” at the left and a number (6) at the right of the display. The

“SEC 1” refers to boom section #1 on your console. The number at

the right is to be adjusted to match the number of tips you have on

boom switch 1.

The default value of “6” will appear for all booms sections. The next

ve programming steps are Number of Spray Tips Per Boom Section

steps. These steps correspond with the ve boom switches on the

lower portion of the console. The section you are programming can be

identied by looking at the SEC # at the left of the display.

You must program the correct number of spray tips for each boom

section on your sprayer. Use the Plus key

or Minus key to

produce the correct value. Pressing the Plus key and Minus key

simultaneously will clear the value to zero.

Advance to the next step by pressing the Program key . This must

be done for all Number of Spray Tips Per Boom Section steps.

Any individual boom switches not being used must be programmed to a

“0” value. When you have programmed and validated the last Number

of Spray Tips Per Boom Section step, advance to the next program

step by pressing the Program key .

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