Eppendorf Concentrator plus - 5.4.1 Concentration with time setting; 5.4.2 Concentration with continuous run; 5.4.3 During and after the concentration process

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Operation
Concentrator plus/Vacufuge® plus
English (EN)
5.4.1 Concentration with time setting
Perform the following steps in the sequence described.
1. time arrow keys: Set the run time.
2. brake: Switch the brake on or off.
3. temp: Select the temperature (note the temperature resistance of the samples).
4. mode/vent: Select V-AQ, V-AL or V-HV mode.
5. start/stop: Start the concentration process.
•The device lid is locked and the green lid indicator light goes out.
•The rotor starts accelerating.
•At 1,000 rpm the vacuum pump starts and the vac indicator light lights up.
•The ventilation valve closes.
•The rotor accelerates to its final speed of 1,400 rpm.
•The colon in the time indicator on the display flashes as long as the rotor is turning.
•The remaining run time is displayed in hours and minutes.
5.4.2 Concentration with continuous run
Use the continuous run function if you do not want to set a fixed run time.
1. Use the time arrow keys to set the continuous run (oo); this can be achieved below 0:01 or above 9:59.
2. Set all other parameters as described above (see Concentration with time setting on p. 41).
3. Press start/stop to start the concentration process.
The time is counted up in increments of 1 minute.
4. Press start/stop to stop the concentration process after the desired time period.
5.4.3 During and after the concentration process
While the device is running, you can:
•Time setting: Change the total run time. The new parameters are adopted immediately. Please note that
the shortest new total run time that can be set is the elapsed time plus 2 minutes.
•Change the braking function and temperature settings.
•Manually ventilate the rotor chamber by keeping the mode/vent key pressed. This will remove
condensate from the device lid and flush the pump and the tubing.
•Determine how far the concentration has progressed using a stroboscope.
•Stop the concentration process even before the set run time has elapsed. To do so, press the start/stop
key.
CAUTION! Continuous delivery can affect safe operation of the device.
When delivering liquids continuously, membranes and valves of the vacuum pump can be
damaged.
 Only use the device for applications of limited duration.
If the device runs for more than 9:59 h, 9:59 remains on the display.