Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual page 162

UltiMate 3000 Series:
NCS-3500RS and NCP-3200RS
Message
New flow meter found.
Please use the pressure
transducer test and then
calibrate both working
pressure transducers.
New flow selector found.
Outlet valve leak detected in
(x) block
Position error
Pressure buildup during
maintenance operation.
Please open the purge valve.
Pressure fallen below lower
limit
Pressure sensor malfunction
Pump not tight. The purge
valve might be open.
Page 154
Remedial Action
The message is for information only, indicating that a Classic flow
meter has been installed.
Make sure that you perform the required steps for the Classic flow
meter after installation (→ page 202).
The message is for information only, indicating that a flow selector
for a different flow range has been installed in the Classic flow meter.
(where x specifies left or right block)
The outlet valve is defective. Replace the valve cartridge
(→ page 182).
A position error is reported for the loading pump.
Turn the pump off and on again by pressing the power switch on the
rear of the module. Contact Service if the message appears again.
A pressure of more than 5 MPa built up during piston and/or piston
seal maintenance for the loading pump. Open and close the purge
valve to reduce the pressure.
If the message appears during the internal maintenance procedure for
the loading pump (→ page 142), perform an additional purge cycle
for the loading pump (→ page 76).
The solvent reservoirs are empty. Fill the reservoirs and purge the
pump (→ page 72).
There are air bubbles in solvent supply line. Check the filter frits and
purge the system (→ page 72).
The system is leaking. Find and eliminate the source for the leak.
Tighten loose connections.
One of the check valves is defective. Check and replace the valve
cartridges as appropriate (→ page 182). Purge the system
(→ page 72).
The lower pressure limit cannot be reached for the specified flow.
The main task of the lower pressure limit is to monitor the system for
leakage. Leakage may occur especially at the fittings and or screw
joints, the switching valve in the autosampler, or the piston seals.
Loading pump
The solvent emits gas when mixing. Degas the solvent. Check the
degasser.
The pressure transducer for the system pressure reported a pressure
under 0 MPa.
Verify that the cable for the system pressure transducer is properly
connected to the P-Sys connector on the interior front panel.
During solvent calibration with the ProFlow flow meter, a leakage
was detected. Make sure that both purge valves are closed.
Operating Instructions