User`s guide

4-18
Operation 4
The maximum dispense flow rate depends on the
Refill Time and Compressibility. If the parameters
are not compatible with the dispense flow rate or
volume entered, the message Invalid settings will
flash on the screen after the Run soft key is pressed.
In this case you must reduce the refill time or the
flow rate.
If the dispense flow rate or volume is not compat-
ible with the head size, the software will not accept
the value and you must key in a new value. If the
head size is changed to a size that is too small after
the dispense volume and flow rate have been
entered, the Run soft key will not appear in the
menu when you return to the dispense Ready-to-
Run screen.
• press the Run soft key to start the delivery of the
liquid. The delivery will stop when the specified
volume has been delivered.
After pressing the Run soft key, the display
changes to give Roll-Pause options for the soft
keys.
• press the Paus soft key to interrupt the dispense
operation. The display changes to give End-
Continue options.
• press the End soft key to terminate the delivery
without dispensing any more liquid.
• press the Cont soft key to continue delivering the
specified volume.
• press the Roll soft key to review the programmed
dispense volume and the volume already dispensed.
• press the Roll soft key again to view the pro-
grammed time for the dispense and the time
already elapsed.
• press the Roll soft key again to review the flow
rate.
Modifying the Values
It is not possible to change the dispense volume or
delivery rate during a run. All of the setup param-
eters (including I/O parameters) except the head
size can be reviewed and modified during a run.
Press the Menu soft key and follow the setup
procedures as described in pages 4-10 and 4-15.
Mode Selection