94 . OilExpress System User's Guide
Sample/Solvent
Solvent is not being drawn
through.
The solvent bottle is empty.
Re-fill the solvent bottle and
empty the waste container at
the same time.
A vacuum has built up in the
solvent bottle, sucking the
sides of the bottle inwards.
Make sure that there is a gap
around the tubing through the
lid of the wash bottle.
Sample/solvent is not
being drawn through.
The tubing is split or leaking. Examine it and change it if
necessary (see
on page 85).
Solvent is leaking out.
Connections are loose.
Check all the connections to
valves and pumps.
The tubing is split or leaking. Change the tubing (see
page 85).
The nut on the flange of the
tube is not fitted correctly.
Refit the tubing and hand-
tighten the nut at the end of the
tubing.
During data collection
The message Sampler
not responding is
displayed.
The Autosampler is switched
off.
Make sure that the Autosampler
is switched on.
The Autosampler is not
connected to the PC.
Make sure that the Autosampler
is connected to the PC (see
on page 43).
The Autosampler cable is
connected to the wrong
COMM port on the PC.
Make sure that the Autosampler
is connected to the PC using the
correct COMM port (default is
on
page 43).
Sampling rate is slow.
Air is leaking into the
system.
Check all the connections to
valves and pumps, the tube-end
fittings, and the connection to
the top of the needle.
Sampling rate is getting
slower.
The waste tubing is in the
waste, causing a back-
pressure.
Empty the waste container
and/or raise the tubing out of
the waste.
No spectrum was obtained
during the run.
The sample was not present
or the cell is not filling
correctly.
Check all connections.
The cell is not installed in
the sample shuttle.
Install the cell in the front of the
on
page 49).
Air bubbles in the sample. Connections are loose or
leaking.
Check all the connections to
valves, flowcell and pumps, the
tube-end fittings, and the
connection to the top of the
needle.
The screws in the flowcell
are loose.
Tighten the screws to correct
torque (see
Deep Cleaning the
Flowcell, Involving Disassembly
on page 88).
Summary of Contents for OilExpress System
Page 1: ...OilExpress System User s Guide MOLECULAR SPECTROSCOPY ...
Page 5: ...Introduction ...
Page 23: ...Warnings and Safety Information ...
Page 36: ...36 OilExpress System User s Guide ...
Page 37: ...Unpacking and Installation ...
Page 69: ...Background to Used Oil Analysis ...
Page 75: ...Routine Maintenance and Troubleshooting ...
Page 96: ...96 OilExpress System User s Guide ...
Page 97: ...Appendices ...