Purging a Valve
1. Select Purge > Valve X > Closed (by pressing the Enter key). “Closed” flashes, indicating that the valve is
closed.
2. Open the valve by pressing the Enter key. “Open” flashes, indicating that the valve is open.
3. When the valve is open, material flows to purge the valve (if a cleaning agent is present) and the respective
Channel LED on the front of the PICO controller illuminates.
4. Close the cleaned valve by pressing the Enter or ESC key; “Closed” flashes, indicating that the valve is closed.
Changing a Container
NOTES:
• The level of material in a container is shown only on the PICO controller display.
• Container size and limit values are entered via SD card.
• The PICO controller calculates the amount of material remaining in the container by using the container size
and the amount of material dispensed. Because the dispensing amount is identified empirically per line, this
calculated value may deviate from the actual amount of material remaining in the container.
• Frequently shutting off the PICO controller can lead to a false remaining amount indication. This is because the
remaining amount is continually calculated according to the parameterized amount per line in real-time and the
calculated remaining amount in the EEPROM is only secured cyclically in intervals of 10 minutes.
To replace a container at any time with an equally sized full container:
5. From the Main Menu, select Process Data > Level Control > Valve X > Container > Change Container.
6. Press the Enter key to confirm container changeout (the dispensing process stops, but the current line will be
completed).
7. Change the container.
8. Press the Enter key to confirm (execute) container changeout.
The PICO controller assumes the full amount in the container as the remaining amount and updates the values
shown on the Level Control screen. If the size of the new container is different, enter the new container size via SD
card.
9. Restart the dispensing process in accordance with the production line specifications.
Operation (continued)
PICO Controller 2+2-XCH-V2
41
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+1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
