TeeJet 834 User Manual

TeeJet

®

834

Sprayer Control

Programming and Operating Manual

U2.12

98-70004

R0

MI 834 Programming and Operating Manual 9/99 Page 1 of 15

Table of Contents

Programming Guidelines________________________________________________________________ 3

Start _____________________________________________________________________________________ 4

System Setup Mode _____________________________________________________________________ 5

Density __________________________________________________________________________________5

Speed Sensor Calibration ___________________________________________________________________6

Auto Calibration__________________________________________________________________________6
Manual Calculation _______________________________________________________________________7
Simulated Speed _________________________________________________________________________7

Tip Spacing_______________________________________________________________________________8

Pressure Regulating Mode __________________________________________________________________8

Application Units __________________________________________________________________________8

Normal Working Mode___________________________________________________________________ 9

Introduction ______________________________________________________________________________9

Target Application Rate Display ______________________________________________________________ 9

Speed Display____________________________________________________________________________10

Pressure Display _________________________________________________________________________ 10

Tip Selection Display ______________________________________________________________________11

Operating Instructions _________________________________________________________________ 13

Sprayer Checkout_________________________________________________________________________13

The Spraying Operation____________________________________________________________________ 14

Automatic Power Down ________________________________________________________________ 14

Alarms and Warnings __________________________________________________________________ 15

MI 834 Programming and Operating Manual 9/99 Page 2 of 15

Programming Guidelines

Make sure that all hardware components are properly installed and tested. Before you start
the programming process you should first check if the console and all sensors are working
properly.

Important Preliminary Information

Before you begin, we recommend that you review the following Programming Guidelines that
control the programming process:

☛ The key is used to power the console ON

☛ Auto & simultaneous key combination is used to power OFF (Master boom switch

must be in the off position)

☛ Holding key for 3 seconds is used to enter programming mode

☛ Pressing the key saves the current parameter and advances to the next

programming step during programming mode

☛ The value of a parameter is changed with the

key changes the parameter rapidly.

+

and keys. Holding the + or

MI 834 Programming and Operating Manual 9/99 Page 3 of 15

Start

To begin the programming process:

☛ Be sure the Master boom switch is “OFF.”

☛ Turn console “ON” by pressing the key. When the control console is turned on, the

software version will be displayed for approximately 5 seconds. At the same time all
LED’s will be ON.
The software version and serial number of the console will be needed when calling for
service support. The serial number is located on a sticker on the back of the console.

Tip

select

tip spacing

(inch)

U2.12

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

On

density

Example: the software version is U2.12.

☛ After a short time the console will change to the target application rate display.

T20.0

Tip

select

tip spacing

(inch)

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

On

MI 834 Programming and Operating Manual 9/99 Page 4 of 15

System Setup Mode

The System Setup Mode contains the programming steps that customize the monitor to the
sprayer or sprayer components. These include calibration steps and parameters that, once
programmed, will likely never change.

To enter the System Setup Mode:

☛ First be sure that the console is ON (if not turn it on by pressing the key and wait

until the normal display is visible).

☛ Ensure the Master boom switch is OFF.

☛ Then press and hold the key for 3 seconds to enter the Program Mode.

D

ENSITY

Default = 1.00

If a substance other than water is being sprayed
or used as a carrier (e.g. liquid fertilizer), enter
the density of that fluid.

Weight of

Solution Per Gallon

7.0 lbs. 0.84

8.0 lbs. 0.96

8.34 lbs. - Water 1.00

10.0 lbs. 1.20

10.65 lbs. – 28% N 1.28

10.85 lbs. – 30% N 1.30

11.0 lbs. 1.32

12.0 lbs. 1.44

Liquid

Density

1.00

Tip

select

tip spacing

(inch)

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

Note: If the solution that you
are using can not be found in
the chart at left, the Liquid
Density can be calculated as
follows:

Density = Weight of Solution
Weight of Water

On

14.0 lbs. 1.68

Use the + or

MI 834 Programming and Operating Manual 9/99 Page 5 of 15

keys to adjust this value. Once the correct units have been selected,

press the key to advance to the next step.

S

PEED SENSOR CALIBRATION

Default = 250 pulses/300ft

The speed sensor needs to be calibrated in order
to provide the proper speed reading. The value
for this step is the number of pulses generated by
the speed sensor in 300 feet.

Auto Calibration

The speed sensor can be automatically calibrated
by driving 300ft. The console will automatically
detect a RADAR sensor (if used).

To start the auto calibration procedure, press

simultaneously on the + and keys. The
display now will show CAL.
Now you have to drive to the starting point of the

Tip

select

tip spacing

(inch)

Tip

select

tip spacing

(inch)

250

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

cal

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

On

density

On

density

300ft distance. Push the + key to start counting
speed pulses as you cross the start point.

Drive 300ft and press + again to stop the pulse
counting as you cross the finish point.

Note: During Auto Calibration the Man LED will flash

each time a pulse is recorded.

The number now on the display is the number of
pulses corresponding to 300ft.

The auto calibration procedure can be escaped with
the key. The console will then return to the
previous calibration value.

Note: The auto speed calibration should be

repeated at least twice and an average of
the calibration numbers should be entered.

Tip

select

tip spacing

(inch)

248

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

On

density

MI 834 Programming and Operating Manual 9/99 Page 6 of 15

Radar

A radar speed sensor will be indicated with an "r" on
the display e.g.

The "r" will automatically appear during the auto
calibration process when the console has determined
that a radar is being used. When manually entering

Tip

select

r10.0

GPA

On

a radar calibration number the "r" must be turned on
by pushing the Auto/Man key. With this key you can
toggle between radar or wheel sensor. The calibration

tip spacing

(inch)

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

value itself is adjusted with the + and keys.

Manual Calculation

To manually calculate the proper value for Wheel Speed Sensor pulses, you need to know the
circumference of the wheel to which the sensor is mounted. It can be measured by marking the
tire and measuring the distance covered as that mark makes one full revolution.

Then use the following formula:

#600,3

WheelOnMagnets

..

=×ge

InchInnceCircumfereWheel

58

×

4600,3

248

=

Use the + or keys to adjust the value. Press the key to validate the value and
advance to the next programming step.

Note: The wheel calibration should be repeated if you are changing to another wheel diameter.

Simulated Speed

If you enter 0 in the speed calibration step, then the console always works with a simulated
speed. This simulated speed can be used to test out the sprayer at stand still.

The simulated speed feature allows you to check out the sprayer at a certain speed without
actually moving the sprayer. This can be done prior to any spraying activity. The simulated speed

+

value can be changed with the
normal working mode.

and keys when the speed is shown on the display in

MI 834 Programming and Operating Manual 9/99 Page 7 of 15

T

IP SPACING

Default = 20 inches

Use the + or
Once the correct units have been selected,

keys to adjust this value.

Tip

select

GPA

On

press the key to advance to the next step.

The value shown is represented in inches.

tip spacing

(inch)

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

P

RESSURE REGULATING MODE

Default = byP
The default value "byP" indicates that the pressure

regulating valve is plumbed in a bypass line. If the

byp

Tip

select

GPA

On

default value is correct, press the key.

Use the + or

keys to change the

tip spacing

(inch)

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

value to throttle (tHr) mode if needed.

Note: This setting must match the actual plumbed mode of the regulating valve.
Changing this setting will only reverse the polarity to the valve, it will not effect the
physical operation of the valve. Refer to the plubing diagrams in the Plumbing and
Installation Manual supplied with this unit.

A

PPLICATION UNITS

Default = US

Select the application units to be used for
regulation. If you will be using US units (GPA)

Tip

select

US

GPA

On

Press the key to advance to the next

step. If you will be using trf units (G/1000 ft2)

use the + or

keys to select this value.

tip spacing

(inch)

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

Once the correct units have been selected,

press the key to save this parameter and to return to the normal working mode.

MI 834 Programming and Operating Manual 9/99 Page 8 of 15

Normal Working Mode

I

NTRODUCTION

In normal working mode, the display can show four different pieces of information indicated by
the LED’s below the display e.g.:

Tip selection

Application rate in GPA (G/1000ft2)

Speed in MPH

Pressure in PSI

The usage of the keys during normal working mode is summarized as follows:

☛

key is used to power ON and to move to another information display

☛

Auto/Man & key combination is used to power OFF (when not spraying)

+

☛

☛

T

ARGET APPLICATION RATE DISPLAY

and keys are used for changing the target application rate or for changing the tip.

In manual mode the + and keys drive the regulating valve to adjust pressure.

In this display the application rate in GPA (G/1000ft2)
is shown. When a "t" is shown then the target
application rate is displayed, otherwise the current
application rate is shown. The target application rate

Tip

select

T20.0

GPA

On

will be displayed any time the master boom switch is
in the off position.

Press the + or keys to select another target
application rate. This can be done before the

tip spacing

(inch)

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

spraying operation begins with the Master
switch off or can be done on the go while spraying
in Auto mode.

Press the key to advance to the speed display.

MI 834 Programming and Operating Manual 9/99 Page 9 of 15

S

PEED DISPLAY

In this display the speed is shown in MPH.

Press the key to advance to the pressure display.

Tip

select

3.5

GPA

On

P

RESSURE DISPLAY

In this display the pressure is shown in PSI.

Press the key to advance to the tip selection
display.

tip spacing

(inch)

Tip

select

tip spacing

(inch)

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

42

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

density

On

MI 834 Programming and Operating Manual 9/99 Page 10 of 15

T

IP SELECTION DISPLAY

This display is the tip selection display. On the display
the two last digits of the VisiFlo color coded tip are
shown, e.g. an XR11004 corresponds with _04.
(See Table Below) The last selection _P is a
programmable selection in case the tips being used
do not match one of the preprogrammed flow rates.

See the following page for programming instructions
on the _P selection.

Press the + or keys to select another tip.

Note: The tip size can only be changed with the
Master switch in the OFF position and with the
console in Auto mode

Tip

select

tip spacing

(inch)

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

density

On

TeeJet VisiFlo

Tip Color

Example

TeeJet Tip

Flow Rate In

US GPM @ 40

PSI

TeeJet 834 Tip

Size Designation

Orange XR11001VS 0.10 _01

Green DG80015VP 0.15 _01.5

Yellow TJ60-6502VS 0.20 _02

Turquoise AI110025-VS 0.25 _02.5

Blue TT11003VP 0.30 _03

Red AI11004-VS 0.40 _04

Brown TT11005VP 0.50 _05

Gray TP11006VS 0.60 _06

White XR8008VP 0.80 _08

Lt. Blue TK-VS5 1.00 _10

Lt. Green TF-VS7.5 1.50 _15

MI 834 Programming and Operating Manual 9/99 Page 11 of 15

Programmable Tip

As mentioned above the _P section of the Tip
Selection Display can be programmed to match
the flow rate of the tips on the sprayer if they do
not fall into one of the categories listed above.
To access the programmable section, while viewing
the _P display, simulataneously press the
Auto/Man and keys for 3 seconds.

The display will then display a flashing flow rate
represented in US GPM at 40 PSI. The Tip Select

LED will also be flashing. Use the + and
keys to adjust this value so that it matches the flow
rate of one of your tips in GPM at 40 PSI.

Tip

select

tip spacing

(inch)

Tip

select

tip spacing

(inch)

_p

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

0.40

GPA

speed cal

(pulses/300ft.)

PROGRAM MODE push 3 sec.

On

density

On

density

Note: It is critical that this flow rate be referenced at 40 PSI for the controller to regulate
the application rate correctly.

Press the key to save the _P value and return to the Tip Select display.

MI 834 Programming and Operating Manual 9/99 Page 12 of 15

Operating Instructions

S

PRAYER CHECKOUT

Before spraying check all connections related to the Sprayer Control assembly. Particular
attention should be given to the speed sensor to be sure the sensor and bolts or magnets are in­line, and properly secured or that the radar is installed at the proper height and correct angle.

Very important: Whenever you are working around a sprayer or farm chemicals, be sure to

Partially fill the sprayer tank with water to flush the system and to make a visual check of the
spray tips to be sure all tips are delivering a good spray pattern.

Follow these steps, in sequence, being sure the Master Boom Switch is in its “OFF” position:

wear protective clothing and eyewear.

☛ Be sure the tank shut-off valve is open.

☛ Start the engine, engage pump, and set the rpm to that which will be used when spraying.

☛ Switch the computer on by pressing the On key on the display panel.

☛ Turn “ON” the toggle switches for each of the spray booms on your sprayer.

☛ Ensure that the Auto/Man key indicates manual mode.

☛ Now, toggle the Master switch to “on.”

+

☛ Adjust the pressure with the

At this point, the sprayer will be activated and spray tip performance can be visually checked.

The + and

Note: Pressing the

the
Regulating Mode step in the Programming Mode.

To stop spraying, toggle the Master switch to “OFF”.

The above steps provide a quick way to check-out your sprayer and computerized control
system.

key should decrease pressure. If this is reversed, check the Pressure

keys can be used to raise or lower your spraying pressure.

+

key in manual mode should increase the pressure. Pressing

or

keys.

MI 834 Programming and Operating Manual 9/99 Page 13 of 15

T

HE SPRAYING OPERATION

You have filled the sprayer tank and have thoroughly mixed the chemical(s). Your application
rate has been determined as well as the spray tip you will be using, with the sprayer data
programmed into the computer.

☛ Switch the computer on by pressing the key on the display panel.

☛ Toggle the boom switches to their “ON” position, for each of the booms on your sprayer.

☛ Take note of the “numbered” booms on each side of the sprayer, so that the appropriate

boom can be toggled “OFF” as necessary.

☛ While spraying with the Master switch “ON”, you can scroll through the different displays

using the key until the information you want is on the display :

♦ actual application rate in GPA (G/1000ft2)
♦ vehicle speed in MPH
♦ pressure in PSI
♦ tip being used

☛ Adjust the target application rate with the

+

and

keys.

As you enter the field to the point where you will begin spraying, turn the Master boom switch to
“ON” position. This will activate the spraying operation. Maintain your usual vehicle speed for

spraying. Use the + or keys to boost the application rate if needed. Small changes in
vehicle speed are compensated by the automatic rate controller while spraying in Auto mode.

If for any reason you need to stop, turn the MASTER BOOM SWITCH to “OFF.”

Automatic Power Down

The TeeJet 834 Sprayer Monitor has an automatic power down feature. With the Master switch
in the “OFF” position, the Console will automatically shut down after 10 minutes of no inputs
(when in normal working mode). This prevents possible battery drainage.

You can also power down the controller by the following key combination: press simultaneously

the Auto and keys and the Console will power down immediately (only with the Master switch
OFF).

ARNING

W

O NOT SWITCH OFF THE CONSOLE BY REMOVING THE MAIN CABLE

: D

!

MI 834 Programming and Operating Manual 9/99 Page 14 of 15

Alarms and Warnings

On the 834 Console there are three LED's for indication of alarms or warnings.

• The Speed alarm LED flashes when no speed pulses are
received during spraying (Master in the ON position). This
indicates that there is something wrong with the speed sensor
or that you are standing still while spraying.

Note: When this alarm is triggered, the display will
automatically switch the application display to view
speed (if not currently viewing speed) and the speed
display will flash off and on as well. This allows the
operator to immediately determine the location of the
problem.

• The Press alarm LED flashes when the signal from the
pressure sensor drops below 4mA while spraying (Master in
the ON position). This indicates that the pressure sensor is
not working properly.

Note: When this alarm is triggered, the display will
automatically switch the application display to view
pressure (if not currently viewing pressure) and
the pressure display will flash off and on as well.
This allows the operator to immediately determine
the location of the problem.

• The Density LED is a warning LED and it will be lit when the
density selected in the programming mode is different from 1.00
(e.g. the density of water). This LED warns the user that
the console is working with a density factor different from 1.00.

Speed

alarm

Press.

alarm

Density

Speed

alarm

Press.

alarm

Density

Speed

alarm

Press.

alarm

MI 834 Programming and Operating Manual 9/99 Page 15 of 15

Density