This ultracentrifuge incorporates a “self-diagnosis feature” that diagnoses the cause of any problem
which may occur when you start the centrifuge or while in operation.
5-1 Alert Indicators
If any trouble occurs, this machine gives a buzzer sound and displays an alert message in the
FUNCTION area of the Run screen to warn of the trouble.
Fig.5-1 Displaying an alert message
If an alert message appears, remove the cause of the trouble as described below and press the
[CE]
button. You will then be able to resume your centrifugation.
WARNING:
Unspecified repairs, remodeling or disassembly of the centrifuge that is not listed in
Table 5-1 is strictly prohibited by any person other than a
Thermo
Fisher
Scientific
authorized sales/service representative.
If the alert message persists even after you have done what is specified below, contact service
representative to order a repair.
Table 5-1. Alert List
Alert
Cause
Action
POWER FAILURE
1.
A power failure occurred while the
rotor was rotating.
•
Unless the set run time has elapsed,
restart the run.
•
If the instrument was automatically
restored and the rotor is rotating at
set speed, then let the run continue.
Refer also to section 3-5 “Happenings when power failure occurs”.
INVALID SPEED
1.
Rotor speed is set higher than the
maximum allowable speed.
•
Set the speed within their permitted
limits.
IMBALANCE
1.
Rotor is not properly balanced, and
abnormal vibration has occurred in
the rotor.
2.
Rotor cover or cap is not properly
tightened.
3.
The ACCEL/DECEL code numbers
that you chose are not applicable.
(Applicable ACCEL/DECEL code
numbers are limited depending on
the rotors.)
•
Check if the sample tubes exceed
allowable imbalance level.
•
Check if any one of the tubes is
deformed, and if there is any sign of
sample leakage.
•
Tighten rotor cover or cap securely.
•
Check whether ACCEL/DECEL code
number setting is applicable to this
rotor (see the rotor instruction manual).
5-1 Alert Indicators
5-2
Alert message
