User manual

1260 Nanoflow Pump User Manual 107
Error Information
7
Module Error Messages
Stroke Length
The distance between the lower piston position and the upper mechanical stop
is out of limits (pump).
During initialization, the module monitors the drive current. If the piston
reaches the upper mechanical stop position before expected, the motor
current increases as the module attempts to drive the piston beyond the
mechanical stop. This current increase causes the error message to be
generated.
Initialization Failed
The module failed to initialize successfully within the maximum time window.
A maximum time is assigned for the complete pump-initialization cycle. If the
time is exceeded before initialization is complete, the error message is
generated.
Probable cause Suggested actions
1 Defective pump drive assembly.
Please contact your Agilent service
representative.
Probable cause Suggested actions
1 Blocked passive inlet valve.
Exchange the inlet valve.
2 Defective pump drive assembly.
Please contact your Agilent service
representative.
3 Defective main board.
Please contact your Agilent service
representative.