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Menu details
Pump
1. Press the "Menu" key (N).
2. Select the menu "Pump" and confirm the input.
3. Select the following settings:
- Modes
- Cleaning
- Limits
-
Solvent library
-
Actions after stop
Modes
Automatic:
In the “Modes” menu, you can enable automatic boiling point recog-
nition by selecting the “Automatic” menu item. No other parameters
must be set. The boiling point is detected automatically. For rotary
evaporators with heating bath, it must be ensured that the tempering
medium and solvents have a constant temperature (e.g. 60 °C).
Manual
In the “Manual” menu item, the target value can be specified (e.g.
in "mbar”). The system is evacuated until the target value.
Pump %
By selecting the “Pump %” menu item, the pump can be operated
continuously with a running performance of between 100 % and 1 %.
Program
Under the “Program” menu, 10 user-defined pressure-time profiles
can be created. The last measurement which is in manual mode can
be saved as a program. The target value and the running perfor-
mance can only be entered within the set limits (see menu item “Li-
mits”) switching to the working screen and pressing the rotary/push
knob starts the process. Pressing the knob again stops the process.
Cleaning
NOTE
The “Cleaning” menu item increases
the service life of the pump, since
solvent residues do not remain in-
side the pump.
The cleaning of the pump ensures that solvent residues are re-
moved in the pump after the measurement. For this purpose, the
pump should run at a low speed rate while the system is venting.
The air flowing through the pump ensures that the solvent re-
sidues are discharged from the pump. If the cleaning option is
selected, the cleaning process will start after the measurement has
finished (see “Actions after stop”).
You can also clean the pump without using the corresponding menu
item. To do this, remove the hoses and operate the pump at the end
of a working cycle (test, test series, end of the day ...) at idling speed.
Start after…
Start a cleaning process after a measurement was running for at
least a interval. The default time is 5 minutes. This means that a
measurement must be run for at least 5 minutes, so that cleaning
is performed at the end of the measurement.
Duration
Specifies how long the cleaning process should be performed.
Pump speed
Determines at what power (in %) the pump is operated during
cleaning. If the power is set too high this can lead to a pressure drop
in the system.
Clean now
If you want to perform a cleaning, you can select it with this setting.