User`s guide

4-20
Operation 4
If the pressure falls below the low pressure limit,
the pump will stop and the message Low pressure
limit will flash on the screen. The alarm will sound
if it is programmed to be on. The pump will stay in
this condition until the End soft key is pressed.
The dispense mode can be simulated in the Program
mode with the added advantage of having Safety
Files (described page 4-31), and being able to program
timed events.
Running the Pump in Program Mode
In this mode, the 305 Master pump can create both
flow rate and composition gradients, program timed
events, and control an injection pump. The program
mode can also simulate the flow and dispense modes,
with the advantage of safety error files and the
ability to program timed events. The sequence of
screens and soft key command options for program-
ming the flow mode can be seen in Figure below.
Mode Selection