Eppendorf 5418 R Centrifuge - Manuale (Pagina 23)

Operation
Centrifuge 5418 / 5418 R
English (EN)
23
5.3.4 FastTemp
This function can be used to start a temperature control run directly without samples with a rotor and
temperature-specific speed in order to quickly adjust the rotor chamber, incl. rotor and adapters, up to the
set target temperature.
Prerequisites
• The centrifuge is switched on.
• Rotor and rotor lid are correctly mounted.
• The centrifuge lid is closed.
• The temperature and g-force
(rcf) or speed (rpm) are set for the subsequent centrifugation (see
Centrifuging on p. 24).
1. Press the fast temp key.
The display shows FT as well as the current temperature and g-force (rcf) or speed (rpm).
The cooling time from room temperature (≈23 °C) to 4 °C takes Approx. 16 min.
The temperature control cycle ends automatically when the target temperature has been reached. A
periodic signal tone sounds.
2. Press the start/stop key to end the temperature control run early.
After the set temperature has been reached and the temperature control run is complete, the centrifuge
keeps the rotor chamber, with the centrifuge lid closed, at the set temperature, if the temperature is below
the ambient temperature. Irrespective of the target temperature, however, this continuous cooling does not
go below 4°C to prevent the rotor chamber from freezing.
5.3.5 Continuous cooling
When the rotor is stopped the rotor chamber is kept at the target temperature when the following
prerequisites are met:
• The centrifuge is switched on.
• The centrifuge lid is closed.
• The target temperature is below the ambient temperature.
During continuous cooling the following applies:
• The target temperature is displayed.
• Irrespective of the target temperature, continuous cooling does not go below 4°C to prevent the rotor
chamber and the samples from freezing and increased condensation in the device.
• The temperature adjustment takes longer because the rotor is not rotating.
Open the centrifuge lid to end continuous cooling.
If the centrifuge is not used for more than 8 hours, the continuous cooling is switched off automatically.
This protects against ice formation in the rotor chamber and the tubes, and against increased condensation
in the device.
The display shows the actual temperature of the rotor chamber.
With fast temp you can quickly reach the desired temperature again (see p. 23).
The centrifuge stops the run automatically when the rotor has reached the set temperature.
Therefore, there may be a delay between the display of the achieved set temperature and the
automatic end of the temperature control run.