Agilent Technologies Quaternary Pump 1100 Series - Manual (Page 81)

81
Troubleshooting and Test Functions
Wait Timeout
Wait Timeout
When running certain tests in the diagnostics mode or other special
applications, the pump must wait for the plungers to reach a specific
position, or must wait for a certain pressure or flow to be reached. Each
action or state must be completed within the timeout period, otherwise the
error message is generated.
Possible Reasons for a
Wait Timeout • Pressure not reached.
• Pump channel A did not reach the delivery phase.
• Pump channel B did not reach the delivery phase.
• Pump channel A did not reach the take-in phase.
• Pump channel B did not reach the take-in phase.
• Solvent volume not delivered within the specified time.
Probable Causes • Purge valve still open.
• Leak at fittings, purge valve, active inlet valve, outlet ball valve or plunger
seals.
• Flow changed after starting test.
• Defective pump drive assembly.
Suggested Actions ❏ Ensure that purge valve is closed.
❏ Exchange defective capillaries.
❏ Ensure pump components are seated correctly. If there are still signs of a
leak, exchange the appropriate seal (purge valve, active inlet valve, outlet
ball valve, plunger seal).
❏ Ensure correct operating condition for the special application in use.
❏ Exchange the defective pump drive assembly.