Thermo Scientific Dionex ICS-5000 Operator's Manual page 279

connector on the back of the detector is securely connected to the
receptacle on the detector compartment.
Figure 8-4. Electrochemical Detector Connection (Analytical Cell Shown)
2. If the error appears again, contact Technical Support for Dionex products
for assistance. The detector electronics may have malfunctioned.
NOTE
ED cell working electrode disconnected.
This error occurs when the cable on the working electrode is disconnected
from the cell electronics.
To troubleshoot:
Check the cable connection: Verify that the signal cable from the working
electrode is connected to the detector block (see
ED pH offset calibration failed.
This error occurs when the pH reading differs by more than 1.0 pH unit from
7.0, which is the value specified for offset calibration. This can be caused by
too large a change in the Ag/AgCl reference potential or by a damaged glass
membrane in the pH sensing part of the reference electrode
To troubleshoot:
Doc. 065342-06 12/11
The Thermo Scientific Dionex ICS-5000 Ion Chroma-
tography System electronics components cannot be
serviced by the user.
8 • DC Troubleshooting
Push here to ensure
the detector's
electrical connection
is secure.
ED Cell Cable
Figure 8-4).
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