Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual page 160

UltiMate 3000 Series:
NCS-3500RS and NCP-3200RS
Message
Implausible left working
cylinder pressure. Check
pressure plug.
—or—
Implausible right working
cylinder pressure. Check
pressure plug.
Implausible left working
cylinder calibration. Check
pressure plug.
—or—
Implausible right working
cylinder calibration. Check
pressure plug.
Internal pump maintenance is
due, please open purge screw
and purge
Leak detected
Left valve no head found.
Page 152
Remedial Action
The pressure values established during pump operation for the
working pressure of the left and/or right pump head of the NC pump
are not plausible.
The cable for the related pressure transducer may not be connected
properly. Verify that the cable properly connected.
Perform the following sequence of actions:
1. ProFlow flow meter: Perform the Zero Balance Test
(→ page 172).
Classic flow meter: Run the Pressure Transducer Test
(→ page 172).
2. Purge the pump head for which the message appears (→ page 73).
3. Close the flow meter outlet with a Viper fitting plug (included in
the accessories kit of the module) and verify that the purge valves
are closed.
4. From Chromeleon, perform the CalibrateWP command for the
pump head.
5. Purge the flow meter (→ page 75).
Replace the pump head (→ page 188).
The calibration values established during pump operation for the left
and/or right pump head of the NC pump are not plausible.
The cable for the related pressure transducer may not be connected
properly. Verify that the cable properly connected.
Perform the following sequence of actions:
1. ProFlow flow meter: Perform the Zero Balance Test
(→ page 172).
Classic flow meter: Run the Pressure Transducer Test
(→ page 172).
2. Purge the pump head for which the message appears (→ page 73).
3. Close the flow meter outlet with a Viper fitting plug (included in
the accessories kit of the module) and verify that the purge valves
are closed.
4. From Chromeleon, perform the CalibrateWP command for the
pump head.
5. Purge the flow meter (→ page 75).
Replace the pump head (→ page 188).
Internal maintenance of the loading pump is overdue and has not
been performed for more than 45 days. Open the purge screw and
initiate a purge cycle.
When this message appears, the flow is automatically turned off after
180 seconds.
The leak sensor in the pump module has reported a leak.
Find and eliminate the source for the leak. Dry the leak sensor and
tray (→ page 177).
While the Catch Head command has been performed, no valve has
been found. Repeat the command and push the valve onto the
actuator (→ page 78).
Operating Instructions