Dionex UltiMate 3000 - Routine Maintenance

UltiMate 3000 Nano and Cap - System Installation and Application
57
6 Troubleshooting
The following table provides a summary of possible operating problems, lists probable
causes, and suggests remedial actions:
Problem Probable Cause Remedial Action
No display on the LCD. The instrument is not connected
to the mains.
Connect the power cord.
The power is turned off. Turn on the power.
The instrument is in standby
mode.
Press the Standby key on the
instrument's front panel.
The brightness and/or contrast is
not adjusted correctly.
Adjust the brightness and/or
contrast (→ Contrast and
Brightness properties in
Chromeleon).
The fuses blow. Replace the fuses
(→ Operating Instructions for
the instrument)
Replacement fuse blows
immediately.
Contact Dionex Service.
Error in the electronic system Contact Dionex Service.
The instrument does not work
correctly when controlled by
Chromeleon.
There is no connection between
the instrument and the
Chromeleon server PC.
Check the connection to the
server PC.
The USB port on the computer is
not ready for operation.
Check the USB port on the
computer.
The system has very high
backpressure.
One or more capillaries in the
system are blocked or damaged
by bending.
Check the capillaries in the
system, remove the blockage, or
replace the capillaries.
The system has very high
backpressure at the column
and at the pump.
The column is contaminated or
blocked.
Rinse or replace the column.
The system has very high
backpressure at the pump (the
pressure at the column is
normal).
The filter frit (porosity: 0.5µm)
on the pump's high-pressure side
is dirty.
Replace the filter frit.
High baseline drift The column is contaminated. Clean or replace the column.
The system is not sufficiently
equilibrated.
Flush the system until
equilibration.
The solvent is degraded. Use fresh solvent and check the
eluent filter frits. In aqueous
solvents, growth of
microorganisms is possible.
The environmental conditions are
unstable.
Make sure that the temperature
and the humidity are constant.
The detector is not warmed up. Allow the full detector warm-up
time.
Detector problem
→ Detector manual