Gasboy DEF Atlas - Manual (Page 11)

MDE-5044A Atlas® DEF Operation, Diagnostics, and Recommended Spare Parts Manual · April 2014 Page 3-1
Fueling Process Operation Modes
3 – Operation Modes
Fueling Process
Fueling at Idle State
When the dispenser is at idle state, the following will occur while fueling:
• Electronic head-assembly display shows the last sale or a decimal point.
• Dispenser is in the prime state and urea is at the intake of the Solenoid Valve
(M02321A005).
• The nozzle is removed from a cold weather dispenser or handle is turned on a warm
weather dispenser.
• Display resets and shows all 8s, then 0s with decimal point.
• Solenoid valve opens (with an audible click).
• Nozzle is inserted into the tank labeled for urea.
• Nozzle is squeezed and product is dispensed.
• Display shows the amount of product being dispensed.
• Nozzle is turned off and product stops dispensing.
• Nozzle is returned to the cradle or the handle is turned off.
• Solenoid valve closes and the fueling transaction is terminated.
• Display shows the total amount of product dispensed.
Cold Weather DEF Dispenser
Following will occur in cold weather DEF unit while fueling:
• The dispenser is primed and the product is at the intake of the solenoid valve.
• When the nozzle is removed, sensor switch sends signal to 9800 Central Processing Unit
(CPU) Board (M06333KECAL):
- Side 1 “Handle” Light Emitting Diode (LED) lights.
- Customer display shows all 8s, then 0s with decimal point.
- Side 1 “Fast”, “Slow”, “Sub” LEDs light.
- Submersible motor activates in the tank.
- 9800 CPU board sends the AC hot signal to the solenoid valve.
- Solenoid valve opens.
• The product flows and enters into the Coriolis Meter/Pulsar Assembly (M10006B501) and
then to the nozzle (hose jumps).
• When the nozzle is opened, product starts to flow.
• The coriolis meter senses and monitors the product flow and sends the pulse signal to the
Coriolis Meter Interface Board (M10030A001) and then to the 9800 CPU board.
• The pulse A LED flashes for pump #1 on the 9800 CPU board.
• If the optional Dual Pulse Input/Output (I/O) Board (M06587A001) is attached to the
9800 CPU board, the two pulsar LEDs will flash when product flow is detected.
• When fueling stops, pulsar LEDs on the 9800 CPU board and optional dual pulse I/O
board stop flashing.
• Customer display shows the total amount of product dispensed in gallons.
• Nozzle is placed back into the cradle, dispenser motor stops, and the solenoid valve closes.
• The fast, slow, and sub LEDs on the 9800 CPU board are now OFF. END OF
TRANSACTION.
The DEF nozzle with the blue cover requires a magnetic actuator to dispense the
product. The DEF nozzle with the black cover does not require a magnetic actuator.
IMPORTANT INFORMATION