User`s guide

4-15
Operation 4
Mode Selection
Mode Selection
Running the Pump in Flow Mode
In Flow mode, the pump provides a constant flow
rate, commencing when the Run soft key or start
input is activated. The pump stops when the Stop
soft key or stop input is activated.
To go to the Flow mode:
• press the Menu soft key.
• press the Mode soft key.
• press the Flow soft key.
This brings you to the Flow
mode Ready-to-Run screen.
The sequence of screens and
soft key command options
for using the flow mode can
be seen in the opposite
figure.
The flow rate can be set
between 0.01% and 100% of
the pump head size fitted to
the 305 Master pump. A
flow rate value will not be
accepted if it is larger than
the pump head size. If the
selected flow rate is incom-
patible with the refill time or
compressibility, the message
Invalid settings flashes after
pressing run. In this case,
you must reduce the refill
time or the flow rate.
• Key in the flow rate in
mL/min and press Enter.
• You can change the pres-
sure units displayed at any
time by pressing the soft
key under the pressure
units currently displayed
(in this example the units
displayed are in bar).