1290 Infinity Quaternary Pump User Manual 67
Using the Module
4
Setting up the Pump with the Instrument Control Interface
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
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.
Prime Select On to start priming, Off to turn priming off.
The Prime function is helpful for filling empty solvent lines or if air has
entered the pump heads. The module draws solvent, at high speed with
both pump drives simultaneously, and dispenses it against the waste
position of the Multi Purpose Valve. This is done 20 times, before the
process comes to an end.
Conditioning at least 200 bar
(> 500 bar is better).
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.
Tab le 3 Pump control parameters
Parameter Limits Description
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