Thermo Scientific Dionex Aquion RFIC Operator's Manual page 73

Pump stopped due to lost USB communication error
Pump under pressure
Second valve error
Thermo Scientific
This error occurs when the Dionex Aquion RFIC is unable to communicate with
Chromeleon.
To troubleshoot

Verify that the USB cable is connected correctly from the Dionex Aquion RFIC rear panel to
the computer on which Chromeleon is installed. For details, refer to the Dionex Aquion
RFIC installation instructions.
If the system pressure falls below the low pressure limit, this error occurs and the pump stops.
To troubleshoot

1. Verify that the eluent reservoir is filled with ASTM filtered, Type I (18 megohm-cm)
deionized water that meets the specifications listed in
IC" on page vi.
2. Check for liquid leaks
3. Verify that the waste valve is closed (see
4. Prime the pump (see
5. Restart the pump.
This error occurs if the auxiliary valve fails to switch position within 1 second of being
toggled.
To troubleshoot

1. If a sequence is running, click Stop on the Chromeleon ePanel to cancel the current
injection and stop the sequence.
2. Try to toggle the auxiliary valve from position A to position B by clicking the down arrow
beside the Valve 2 button on the Chromeleon ePanel.
3. Turn off the Dionex Aquion RFIC power briefly, and then restart the system.
4. If the problem persists, repeat
5. If the problem persists, contact Technical Support for Dionex products for assistance.
(see"Liquid Leaks" on page
Figure
"Priming the Pump (Standard Procedure)"
Step 2.
Troubleshooting Error Messages
"Deionized Water Requirements for
60).
13).
on page
Dionex Aquion RFIC Operator's Manual
5
Troubleshooting
90).
57