Thermo 6464K, Instruction Manual

Page: 11 / 24

OM6464K Rev. 4 11 January 2004 Page 11 of 24
Error Codes
An error code typically means that the internal
microprocessor has detected impermissible readings or a
failure in the unit. Error messages appear in the speed
display. When an error code is displayed, unplug and
reconnect the unit to power. If the error code reappears,
factory-authorized maintenance may be required. Contact
your local Thermo representative and tell the service
personnel which message appeared when you report the
problem.
Error Code Description
Err 1
No Tachometer
Tachometer signals were not present during the run. The
rotor coasts to a stop. Cover opening is inhibited after this
error. Unplug and reconnect the unit to power to reset this
error.
Err 14
Incorrect Rotor Signature
The rotor signature detected does not correspond with the
database of rotors.
OSPd
Overspeed
Speed is 200 RPM above the maximum speed for the
installed rotor. The rotor will brake to a stop.
rEFR
Refrigeration Failure (Refrigerated only)
The unit displays this code if the measured temperature
exceeds 45
° C, at any time during the run.
norEF
No Refrigeration Temp. Sensor (Refrigerated only)
The unit displays this code, if the microprocessor is not
detecting a temperature measurement from the temperature
sensor.
FSAFE
Fail-safe Time out
Independent circuitry on the circuit board has sensed a lack
of activity from the control microprocessor. All power
circuits (including motor, latch, solenoid, etc.) are disabled.
COPF
Cop Watchdog/OpCode Trap Error
The microprocessor has sensed a lack of activity from the
program that controls the centrifuge. The rotor will coast to
a stop.
COP
COP Watchdog Not Enabled
The microprocessor COP is not enabled. The rotor will
coast to a stop.
UndFl
Undefined Interrupt
The microprocessor was interrupted by an undefined
source. The rotor will coast to a stop.
ILLOP
Op-Code Trap Error
The rotor will coast to a stop
norr
Rotor Recognition hardware is not present during Power On.
Blocks operation of unit until Rotor Recognition hardware is
properly installed. Call for service.
dIR
Wrong Direction of Rotation
The microprocessor discovered wrong direction of rotation,
during acceleration
Warnings during a spin: LId, PFAIL, and dIR error messages can occur
during a spin. In this case, the rotor brakes or coasts to a stop and the run
ends.
4. Applications
4.1 Introduction
This section describes the use of specific rotors and
accessories. More detailed information is shipped with the
rotor or accessory itself. This section contains five
reference sections:
• Speed and Force Tables
• Derating Table for Dense Samples
• Chemical Resistance Table
• Decontamination Table
• Nomograph
CAUTION
!
Do not exceed maximum rated speed for each rotor/
accessory combination. Maximum rated speeds can be
found in Section 4.2 - Speed And Force Tables.
Relative Centrifugal Force (RCF or G-force) at a given speed
varies with the rotor, and with the distance away (rotating
radius) from the shaft of the centrifuge (center of rotation).
The rotating radius is measured to the furthest inside tip of
the tube, away from the centrifuge shaft. The Speed and
Force Tables indicate the maximum speed and RCF that the
IEC Centra CL5(R) can achieve, with various rotor/
accessory combinations. The Derating Table specifies
reductions in maximum RPM, when spinning samples with
specific gravity above 1.2.
Use of any tube above its rated RCF can cause tube
cracking. To avoid this, compare the G forces, specified in
the Speed and Force Tables, with the ratings for the tubes
that you are using. If the tubes are not rated for the force
that the centrifuge will apply, look up their reduced g force
rating and enter it on the control panel.
Corrosive Solvents
Your centrifuge is made of materials designed to resist
immediate attack from most laboratory chemicals.
Prolonged exposure should be avoided, by immediately
removing the chemical from rotor or assembly. Rotors and
accessories placed in the chamber are made of a variety of
materials, including aluminum and polypropylene. The
Chemical Resistance Table shows the suitability of each
material with different classes of reagents.
Section 5.2 describes how to clean and remove corrosion
from the chamber, rotors, and accessories. Follow these
instructions and clean spills promptly to minimize the effect
of corrosive chemicals and to avoid expensive repairs.