Operation
25
P 2.1S/P 4.1S user manual V6870, version 3.1
Result:
The setting is completed. If the value for maximum power consumption
is exceeded, the pump switches off.
Flushing the Pistons
When you flush the pistons regularly, the service life of the seals and pistons
increases. While flushing, contaminants are washed from the rear piston area.
The following solvents are recommended for flushing the columns:
Water
Mixture of 80 % water and 20 % ethanol
Isopropanol
Software
To be able to control the pump using chromatography software, the computer
must be connected to the device either with a RS232 cable or a LAN cable.
3. When the cursor flashes, use the
arrow keys again to set the value
for the maximum power consump-
tion.
4. Hold down left arrow key. Press
right arrow key once.
Fig. 15
Minimum power consumption
5. When the cursor flashes, use the
arrow keys again to set the value
for the minimum power consump-
tion.
6. Press start/stop key once to return
to the start display.
Fig. 16
Maximum power consumption
Process
Figure
1. Connect the outlet to the waste
container with a hose
1
.
2. Connect the inlet to the syringe
with a hose
2
.
3. Fill up flushing solution with the
syringe through the pump head
until there are no more air bubbles
running through the waste bottle.
4. Afterwards, remove the hoses and
connect inlet and outlet with a
hose.
Fig. 17
Flushing rear piston area
050
I
000
I
1
2
