Gilson 402 - Manual (Page 47)

4-11
Operation - Standard Use
4
‘Homing ...’ appears on the screen until the syringe(s)
have returned to their uppermost (home) positions,
during which time any liquid contained in the
transfer-tubing is expelled from the probe-end.
After this the Action Screen reappears.
Press ESC to return to the start-up screen for the
current file.
Whenever you see ‘Homing’ on the screen, the
syringe piston(s) are returned to their uppermost
position(s). As a result, some (or all) of the liquid
contained in the transfer-tubing will be expelled
from the probe-end. You must ensure that the
probe end of transfer-tubing is already in a
suitable waste container.
Running a Method (Run)
Introduction
The Run soft-key appears, after you have entered
your Method. Press Run to start the Method cur-
rently shown on the screen (at the first task, in this
example Dispense).
If you want to run a different program, you must
key in its file number and press ENTER, before
pressing Run.
After pressing Run, a series of in run screens
appears. During the run, you must follow the
instructions on the screen, and press the command
button on the probe when prompted to do so by
the command light on the probe.
You press the command button on the probe to
aspirate and to dispense:
- a steady light means you are going to aspirate or
dispense liquid,
- a flashing light means you are going to aspirate air.
When you have finished, or wish to change pro-
grams, press STOP, to instantly halt the program.
Pressing STOP
When you press STOP, the motion of the syringe(s)
ceases and the Abort Screen appears. Press Proceed,
when you want to continue with your Method.
Press Abort, when you want to stop. Unless the
syringe(s) are already at their uppermost (home)
positions, Initialization Screen 2 reappears.
Essential Steps
Run Screen (1)
Run Screen (33)
Abort Screen