Agilent Technologies 1260 Infinity II User Manual page 62

3
Using the Module
Setting up the Pump with the Instrument Control Interface
Prepare Pump Dialog
Table 5 Prepare Pump dialog
Parameter Limits
Purge Time: 0 – 100.00 min
in steps of 0.01 .
Flow: 0.000 –
5.000 mL/min for
each channel, in
steps of 0.001
Prime
Conditioning at least 200 bar
(> 500 bar is better).
62
Description
Setup and activation of Purge parameters. The automatic purge valve can
be used for purging the system. The process has been automated for ease
of use.
• Off: Turns off the purge.
• On: The device is purged.
• Purge Flow, Time and Composition during purge have to be defined.
As soon as the duration time of the purge ends, the module automatically
switches to analytical conditions again.
Select On to start priming, Off to turn priming off.
The Prime function is helpful if air has entered the pump heads. The
module draws solvent at high speed with all four pump drives
simultaneously, and dispenses it against the waste position of the
automatic purge valve. This is done 20 times, before the process comes to
an end. It should only be used when purging is not successful in removing
stuck air bubbles from the pump head, and under no circumstances to fill
the solvent lines when they are completely empty.
Use this function if you see excessive pressure or composition ripple, and
you are sure that the solvent type (aqueous/organic or specific
solvent/solvent mix) is correctly set, and there is no evidence of leakage
in the pump.
Conditioning may be necessary if the pump may contain air, for example
after running out of solvent, after a long period of standby or after service
or repair.
1260 Infinity II Flexible Pump User Manual