5-2 Diagnosed Problems-Requiring Maintenance
If any alert message between E11 and E86 appears, this ultracentrifuge requires maintenance by a
service representative. When ordering a repair, inform us of the alert code you have received.
NOTE When the "E13: Unexpected MPG pulse" alert message appears, this alert message is
impossible to clear until the rotor stops.
NOTE Be
s
ure
t
o
c
ontact
a Thermo
Fisher
Scientific
service
r
epresentative,
i
f
t
he
a
lert
m
essage
"VACUUM" persists even after you have done what is specified above. There might be
abnormality in the heater of the oil diffusion pump.
Be sure to contact a
Thermo
Fisher
Scientific
service representative, if the alert message "E35: DP
heater thermistor abnormality" appears. There might be abnormality in the heater of the oil
diffusion pump.
5-3 User-Corrected Problem
If the ultracentrifuge does not function even if no problems are reported, do the following:
Symptom
Cause
Remedy
The ultracentrifuge
can not be
energized be by
turning ON
the POWER
switch.
The circuit breaker connected
to the ultracentrifuge is
tripped.
•
Reset the circuit breaker, and turn on the
POWER switch.
The rotor cannot
cool down or
the rotor temperature
is rising.
Poor vacuum
•
Check whether the oil of the vacuum pump
needs replacing.
•
Clean or replace the door seal O-ring.
The room temperature is
higher than 30 °C.
•
I
f there is an air-conditioner working near
the ultracentrifuge, run it at a lower room
temperature setting.
•
If there is no air-conditioner working near
the ultracentrifuge, lower the set speed.
The rotor surface contains
drops of water.
•
Wipe water off the rotor with a soft cloth.
The window part of the
temperature sensor contains
drops of water.
•
Wipe water off the temperature sensor
with a soft cloth being careful not to touch
the sensor with your finger.
5-2 Diagnosed Problems-Requiring Maintenance
5-3 User-Corrected Problem
5-4