C-9
“Oil-Less” Scroll Laboratory Air
4107 9006 25.11
Appendix C: TotalAlert Embedded Control System
Figure C.16 3.5” Screen Toolbar
From left to right, the toolbar icons represent the
following:
Main Screen (default)
Status/Information (Hourmeter)
Service
Alarms (no Shutdown)
Shutdown
C.3.3 3.5” Boot/Communication Screen
Figure C.17 Boot/Communication Screen
The boot/communication screen (Figure C.17)
shows at boot time and changes to the default main
screen once communication and compatibility are
confi rmed:
• If a RS485 link failure is detected the link icon
at the top of the screen appears and the version
button appears to allow the user to check
display board (PCB2) version information.
• If the connecting board is incompatible with
the display board (for example, the boards
are not properly connected), only the bottom
version button appears with a red button
background.
C.3.4 3.5” Main Screen
Figure C.18 3.5” Main Screen
The main (default) screen (Figure C.18) shows
the operation mode of the unit along with its
automatic versus manual mode setting:
• Automatic (Blue = Standby, Grey = Unselected,
Green = Unit Running)
• Off (Red = Selected, Grey = Unselected)
• Manual (Blue = Standby – Backup Pressure
Switch is not closed, Grey = Unselected, Green
= Unit Running)
C.3.5 3.5” Main Screen: Manual Override
During the system startup, the manual override,
located on the printed circuit board (PCB4), switch
is utilized to ensure the compressor is in the Off
position. The manual override switch on PCB4 is a
safety measure as well, for emergency situations to
ensure the compressor unit produces medical air.
In the event of an emergency and the control system
is not operating eff ectively, the manual override
switch can be moved from the Automatic position
