Prepare Pump Dialog

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.

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 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.

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 contains air, for example, after running out of solvent, after a long period of standby or after service or repair.