TeeJet 844 - User Manual

844 Operations Mini Manual
Spraying Systems Co. 10/12/1995 12:47 PM
System Setup Mode
• The Master boom switch must be off. Press (+) and (-) keys while simultaneously pressing the
key. Press the key again to enter the System Setup Mode.
Step Display Description My Values
Units
US, TRF
Select US or Turf units by using + and - buttons
Go to next step with
button
Flowmeter
Pulses
Flow Meter Pulses
Value from flowmeter tag
Go to next step with
button
Nozzle
Spacing
Nozzle Spacing
Distance between tips in inches
Go to next step with
button
Tips per boom
section 1
SEC 1
# of tips on Boom sect. 1 (corresponds to switch #1)
Enter 0 if not used. Go to next step with button.
Tips per boom
section 2
SEC 2
Tips on Boom sect. 2. Enter 0 if not used.
Go to next step with button.
Tips per boom
section 3
SEC 3
Tips on Boom sect. 3. Enter 0 if not used.
Go to next step with button.
Tips per boom
section 4
SEC 4
Tips on Boom sect. 4. Enter 0 if not used.
Go to next step with button.
Tips per boom
section 5
SEC 5
Tips on Boom sect. 5. Enter 0 if not used.
Go to next step with button.
User
Programmabl
e Tip
P
Flow rate in Gallons Per Minute of tip being
programmed at 40 psi. Use + and - keys to adjust
flow rate. Go to next step with button
Pressure
Regulating
Mode
In low flow situations, BYP is the preferred mode.
Use the + and - keys to change to THR mode if the
regulating valve is mounted in the supply line. Go
to next step with button.
Boom Control
Valve Type
2 Way or
3 Way
Boom Shutoff Valve Type
Standard (2-way on-off) or Bypass (3-way bypass)
Go to next step with
button
Liquid
Density
D
1.0 for water. See chart in manual for other
materials. Go to next step with
button
Speed
Calibration
Speed Calibration. Change with + and -, or to auto
calibrate press + and - simultaneously to clear value,
then drive 300 feet and press .
• To exit the System Setup mode, press and hold for 3 seconds at any point in programming
process.

Summary

System Setup Mode

Units Configuration

Select US or Turf units for operation.

Flowmeter Pulses Setup

Configure the flowmeter pulse value from the tag.

Nozzle Spacing Configuration

Set the distance between nozzles in inches.

Tips per Boom Section Setup

Configure the number of tips for each boom section.

User Programmable Tip Settings

Adjust flow rate for a programmed tip at 40 psi.

Pressure Regulating Mode Selection

Choose between BYP or THR regulating modes.

Boom Control Valve Type

Select between Standard (2-way) or Bypass (3-way).

Liquid Density Setting

Set liquid density for material calculations.

Speed Calibration Procedure

Calibrate the speed sensor for accurate operation.

Application Setup Mode

Target Application Rate

Set the target application rate in GPA.

Tip Selection Configuration

Select the nozzle tip color being used.

Calculation Step (Diagnostic)

Diagnostic tool for calculating spraying parameters.

Sprayer Control Features

Boost Mode Functionality

Adjust chemical application rate by 10% increments.

Area;Volume Display

View applied area and total volume.

Simulated Speed for Testing

Test system speed without moving the machine.

TeeJet 844 Specifications

General

Category	Controller
Model	844
Pressure-Based Control	Yes
GPS Input	Yes
Automatic boom section control	Yes
Input Voltage	12 VDC
Brand	TeeJet
Product Type	Sprayer Controller