Eppendorf Concentrator plus - 5.3.4 Loading a fixed-angle rotor

Operation
Concentrator plus/Vacufuge® plus
English (EN)
38
After the warm-up phase is completed
•The device stops automatically.
•During braking the elapsed concentration time is displayed flashing.
•The rotor chamber is ventilated so that the pressure in the chamber increases slowly.
•After two seconds, the vacuum pump is switched off, and the vac indicator lamp goes out.
•Then the device brakes.
•When the rotor has come to a standstill, the lid indicator lamp lights up.
•The lid can be opened.
5.3.4 Loading a fixed-angle rotor
The following notes apply to fixed-angle rotors. Loading the rotor A-2-VC is described in the following
chapter (see Loading a swing-bucket rotor on p. 39).
Proceed as follows when loading the fixed-angle rotor:
1. Check the maximum payload (tube and content) per rotor bore. Detailed information can be found in
this operating manual (see Rotors on p. 12).
2. Only load rotors with the tubes intended for this purpose.
3. Insert open tubes opposite each other in pairs into the rotor bores. For symmetrical loading, tubes that
are opposite each other must be of the same type and contain the same filling quantity.
In order to minimize weight differences between filled sample tubes, we recommend taring with a scale.
This will reduce wear on the drive and cut running noise.
CAUTION! Risk of injury due to asymmetric loading of a rotor.
 Load rotors symmetrically with identical tubes or plates and buckets.
 Always load all positions of a swing-bucket rotor with buckets.
 Only load adapters with suitable tubes or plates.
 Always use tubes or plates of the same type (weight, material/density and volume).
 Ensure that tubes that are located opposite each other contain liquids with the same rate of
evaporation. Otherwise an imbalance can occur and the concentration may automatically
stop.
 Check that loading is symmetrical by balancing the adapters and tubes or plates used with
scales.
The device automatically detects imbalances during operation and stops the run immediately
with an error message and a signal tone. Check the loading, balance the tubes and re-start the
centrifugation.
CAUTION! Risk from damaged or overloaded tubes.
 (see Warnings for intended use on p. 18)When loading the rotor, observe the safety
precautions on dangers as a result of overloaded or damaged tubes .