Purging the pump means rinsing the pump for a short time at a higher flow rate, using the selected solvents.
Settings
The following settings are considered for the purge cycle:
Setting | Description |
---|---|
Purge flow | The standard setting is 5 mL/min. You can adapt the setting in the Chromeleon software if required. The setting is considered also when purging the pump from the keypad. |
Purge time | The standard purge time is 5 minutes. You can adapt the setting in the Chromeleon software if required. The setting is considered also when purging the pump from the keypad. |
Channel to be purged and solvent to be used | The purge cycle is performed with the most recently selected channel and eluent composition. You can adapt the settings in the Chromeleon software if required. The settings are considered also when purging the pump from the keypad. |
To Purge the Pump
The following alternatives are available:
Procedure | Description |
---|---|
Automatic purging | Automatic purging runs without further user interaction. Automatic purging is possible only when certain prerequisites are fulfilled. When the prerequisites are fulfilled, automatic purging is performed by default when you press the PURGE button on the keypad. See Automatic Purging. |
Manual purging | With manual purging, user interaction is required at the beginning and at the end of the purge cycle. See Manual Purging. |
TIP
With a dual pump, purge each pump separately.