System overpressures at relatively low psi - WKB233405

SYMPTOMS

• System overpressures at 300 psi and above

ENVIRONMENT

• Alliance HPLC System
• 2695 Separations Module
• 2695D Dissolution Separations Module
• 2795 Separations Module

CAUSE

The currently stored method's high pressure limit is lower than the normal expected psi.

FIX or WORKAROUND

Do one of the following"

• Via the front panel of the Alliance, choose default as the method.
• Edit the instrument method via the front panel of the Alliance to increase the maximum pressure.
• Power cycle the Alliance to get the system to default to normal pressures.
• In Empower or MassLynx, click setup new method to get the flow going. This sets the maximum pressure to what is in the method.

ADDITIONAL INFORMATION