Cleaning; Table 4-1. Diagnostic Troubleshooting Chart - Beckman Coulter Optima L Series Instruction Manual

Diagnostic
Message
SPEED Speed has been set above the
maximum allowable for the rotor; or
wrong, damaged, or missing overspeed
disk on the installed rotor
TEMP Temperature control or vacuum system
malfunctioning
DRIVE Abnormal change in drive speed or over-
heated drive
VAC Vacuum not being drawn properly
IMBAL Rotor imbalance (at low speeds)
DOOR Door is open when the [
pressed
PWR Loss of power during run
CPU Microprocessor malfunction or loss of
program memory

CLEANING

Table 4-1. Diagnostic Troubleshooting Chart

Possible Cause
] key is
START
➠
NOTE
Before using any cleaning or decontamination
methods except those recommended by the
manufacturer, users should check with the
manufacturer that the proposed method will not
damage the equipment.
User Action
Check set speed; check the rotor for clean, undam-
aged, and correct overspeed disk (see the Rotors and
Tubes manual [LR-IM] for replacement instructions).
Check the air inlet (at bottom of the front panel) for
obstructions. Call Beckman Coulter Field Service if
problem persists.
Be sure a rotor is properly installed on the spindle; if
power has failed, wait for 5 minutes for drive to cool;
check for air inlet obstruction.
• Check door O-ring for damage and dirt.
• Check rotor lid O-rings for possible leakage.
• Check the vacuum oil. If milky in color, run the
vacuum system for several hours or overnight until
the oil is clear.
Check for proper rotor loading.
Be sure door is closed.
Check TIME display; run may need to be restarted or
aborted.
No user action. Call Beckman Coulter Field Service.
Troubleshooting and Maintenance
4-7