User`s guide

4-17
Operation 4
Mode Selection
Running the Pump in Dispense Mode
In this mode the pump can be used to deliver a
specified volume beginning when the Run soft key
or start input is activated, and finishing when the
specified volume of liquid has been delivered. The
parameters to enter are dispense volume and
dispense flow rate or time of dispense.
To go to the dispense mode :
• press the Menu soft key.
• press the Mode soft key.
This brings you to the Dispense mode Ready-to
Run screen. The sequence of screens and soft key
command options for using the flow mode can be
seen in the Figure on the next page.
Two parameters are displayed on the top line of the
screen, the dispense volume, and the dispense time.
A flashing cursor appears under the dispense
volume setting, key in the required dispense volume
and press Enter. The flashing cursor now moves to
the dispense time display, key in the dispensing
time and press Enter. If you wish to define the
dispense volume and dispense flow rate instead,
press the Rate soft key. The top line will then
change to display the dispense volume and flow
rate.
• Key in the dispense volume and press Enter.
• Key in the dispense time (or rate) and press Enter.
The limits for each of the parameters are as follows:
Maximum dispense volume:
100 x head size (mL).
Minimum dispense volume:
0.0001 x head size (mL).
Maximum dispense flow rate:
1 x head size (mL/min).
Minimum dispense flow rate:
0.0001 x head size (mL/min).
Maximum dispense time:
9999 minutes.