DynaJet® IC7140
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NO. 4 PREFORM SYSTEM FUNCTIONAL TEST
Prior to attempting to use the DynaJet IC7140, perform the following functional test of the system. Further details for fine-calibrating the system are in
“Calibrate the DynaJet IC7140 System” section of this guide.
Ensure Current Rate Control System is Operating Normally
1.
On the UT, bring DynaJet IC7140 into focus, navigate to the Operation screen
2.
Set DynaJet IC7140 operating mode to Manual Mode.
3.
Using the PWM INCREASE KEY, set PWM duty cycle at 100%. This will make the system operates as if DynaJet IC7140 was not present.
4.
Use this configuration to verify the rate control system is operating normally.
Confirm Boom Sections are Functioning
1.
Continue operating DynaJet IC7140 in Manual Mode.
2.
Using the PWM DECREASE KEY, set PWM duty cycle to 50%.
3.
Switch the master switch ON (on rate controller or other boom section control switches)
4.
Using the switch box, turn ON each section verifying the proper section turns the associated nozzles blue on the DynaJet IC7140 operation screen.
5.
Turn the master switch OFF. On the DynaJet IC7140 operation screen, verify all sections’ associated nozzles are now grey.
Confirm Each of the Corresponding E-ChemSaver
®
Solenoids Is Pulsing
1.
Verify that the pressure on the mechanical gauge is close to the digital pressure display on the DynaJet IC7140 operation screen.
NOTE: Due to mechanical losses the sensors will not be an exact match. Enter the maximum pressure value as indicated on the pressure sensor label.
NO. 5 CALIBRATE THE RATE CONTROLLER REGULATION
The following procedure will help determine the rate controller valve gain that is the most aggressive value that will work over all pressure ranges.
NOTE: DynaJet IC7140 Gain settings will be calibrated in following section.
Before you begin:
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Ensure product pump is providing flow greater than the maximum demand of the system. Consult sprayer manufacturer specifications.
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Understand that the most aggressive value will be found by increasing valve gain until system oscillates and then decreasing the setting until the
system is stable at that value.
NOTE: Other rate controller specific settings may apply based on your specific rate controller system
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The rate controller must be operating in automatic mode during these tests.
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To attain the minimum and maximum operating pressures for the specific nozzle in use under each test condition, the user must be able to
either: a) adjust the target application rate, or b) adjust the machine speed.
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Current Nozzle on the DynaJet must be the same as installed on the system as well as selected on the rate controller.
Summary of Contents for DYNAJET IC7 140
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