Thermo Scientific Dionex ICS-5000 Operator's Manual page 278

Dionex ICS-5000 Operator's Manual
analytes, a damaged or incorrectly installed cell gasket, or an electrical short
between two of the three electrodes).
To troubleshoot:
1. Turn off the cell voltage. Excessive currents can change or even damage
the working electrode.
2. Turn off the pump flow.
3. Disassemble the cell (see
and salt bridges that can cause shorts. Rinse the cell surface and dry it
with a clean, lint-free towel. Replace the cell gasket.
4. Verify that the correct electrode material, waveform potentials, and
reference mode are selected for the application being run.
5. Restart the flow and select DC amperometry mode. Apply cell potential
in steps increasing toward the detection potential (the potential of the
integration period in integrated amperometric detection). If the current
becomes excessive again, try a new working electrode or another cell, if
available.
ED cell option disconnected.
This error indicates that the electrochemical detector is unplugged.
To troubleshoot:
1. Check the detector connections: Verify that the signal cable from the cell
is connected to the appropriate connector on the detector block (see
Figure
262
Section
8-4). Also, push firmly on the detector to ensure the electronics
9.28.3) and check for evidence of liquid
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