27
R
ROSETTA
Electronic control panel
PROgRAMMINg
Here is some of the additional functions that the electronics offers:
Volume control of four different espresso drinks per brewing group.
Time-controlled hot water dispensing. (if available)
Automatic lling and level control of the boiler.
Automatic switch off of the heating element if not enough water.
System supervision through alarms.
RS-232 serial interface with reader for connecting control panel and computer.
Automatic cleaning of the brew groups.
The control panel is by default programmed with 4 standard drinks (these can be reprogrammed as you
wish) and a continuous selection. The rst four keys (1 short espresso, 1 Long Espresso, 2 short espresso, 2
Long Espresso) brew the programmed volume and then stop automatically, the fth key brews continuously
until user stops it by pressing button again.
Button functions
1 Short Es-
presso
1 Long
Espresso
2 Long
Espressos
Programming
Continuous Dispensing
Hot water / Automatic steam
(if enabled)
2 Short Espressos/
Auto-cleaning
The Continuous Dispensing button performs 3 different functions (depending on length of time pressed):
Machines equipped with display
Under 1 second: Enables automatic water- or steam-dosing (only on machines without manual lever).
Between 1 and 8 seconds: Enables Continuous Dispensing (press again to disable).
Over 8 seconds: Access coffee-dose programming menu (see below).
Machines not equipped with display
Under 4 seconds: Enables Continuous Dispensing (press again to disable).
Over 4 seconds: Access coffee-dose programming menu (see below).
To activate these functions, turn off the machine at the power switch then, while holding down the required button
on the left-hand button panel, turn the machine back on.
1 Short Espresso. Enable electronic pre-infusion.
1 Long Espresso. Disable electronic pre-infusion.
2 Short Espressos. Perform auto-cleaning.
2 Long Espressos. Turn on/off flashing of button lights (only available on MINI machines).
Additional button functions
Note:
In machines equipped with a display, electronic pre-infusion may have to be enabled/disabled from
the service programming menu.
i
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