Eppendorf Concentrator plus - Manual (Page 23)

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5 Operation
Concentrator plus / Vacufuge® plus — Operating manual
4. mode/vent: select mode V-AQ, V-AL or V-HV .
5. Close lid of the device.
6. Press start/stop to start the warm up phase.
• The device lid is locked, the green indicator lamp lid goes out.
• The rotor starts up.
• At 1,000 rpm the vacuum pump switches on, the indicator lamp vac lights up.
• The vent valve is closed.
• The rotor accelerates to the end point of 1,400 rpm.
• On the display, the colon of the time display flashes while the rotor is turning.
• The remaining run time is displayed in hours and minutes.
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, the indicator lamp vac goes out.
• Then the device brakes.
• When the rotor stands still, the indicator lamp lid lights up.
• The lid can be opened.
5.3.4 Loading fixed-angle rotor
The following notes apply to fixed-angle rotors. The load of the rotor A-2-VC is described in the
following chapter (see Loading swing-bucket rotor on page 26).
Proceed as follows when loading the fixed-angle rotor.
1. Check the maximum load (tube and content) per rotor bore. Detailed information can be
found in this operating manual (see Rotors on page 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.
WARNING!
Warning! Risk of injury from unsymmetric loading of rotors.
 Load rotors symmetrically with identical tubes and/or buckets and plates.
 Only load adapters with suitable tubes and/or plates.
 Always use tubes and/or plates of the same type (weight, material/density and volume).
 Check for symmetric loading by balancing the adapters and tubes and/or plates used with
scales.
WARNING!
Warning! Risk from damaged or overloaded tubes!
 When loading the rotor note the safety instructions with regard to hazards from overloaded or
damaged tubes (see Warnings for intended use on page 15).
EN
Operat
ing manual