Diagnostic Messages; Figure 4-4. Location Of Diagnostic Messages On The Control Panel - Beckman Coulter Optima L Series Instruction Manual

Troubleshooting and Maintenance

DIAGNOSTIC MESSAGES

4-6
Diagnostic messages appear as red LEDs at the left side of the upper
display (see Figure 4-4) to alert you to conditions that may need your
attention. A tone will sound and the appropriate message will blink
until you press the [
you attempt to restart the instrument and the problem has not been
corrected.
SPEED TEMP DRIVE
IMBAL DOOR PWR
Diagnostic Messages
SPEED–RPM
2
w
t
ACCEL DECEL

Figure 4-4. Location of Diagnostic Messages on the Control Panel

Some of the messages provide cautionary information that will not
shut down a run in progress. Others indicate a user error. For
example, if you left the chamber door open when you pressed
[ ], the DOOR message would appear to let you know it must
START
be closed.
If the associated display is flashing when a diagnostic message
appears, a shut-down malfunction has occurred. The run will come
to a stop.
See Table 4-1 to determine the nature of the error or problem,
possible causes, and recommended corrective actions. If no user
action is indicated, or the error persists, call Beckman Coulter Field
Service for assistance.
] key. The diagnostic messages will reappear if
CE
VAC
CPU
TIME–HR:MIN TEMP–°C
SPEED
µ
VACUUM–
TIME
TEMP
HOLD PROG SAVE
X 10,000
7 8 9
VACUUM
4 5 6
1 2 3
START
0 CE
STOP
ENTER/RECALL
POWER OFF