Roche Diagnostics
Operator’s Manual · Version 3.1 E-71
Cedex Bio System 15 ISE troubleshooting
List of ISE flags
List of ISE flags
This section lists the general and ISE-specific flags in alphabetic order and provides
information on each of the flags.
e
For information on flags that concern absorbance measurements only, see List of flags on
page D-28.
>
Meaning Result generated by re-performing the test with the same running parameters
(repeated).
Message ID 120
Priority 32
Possible cause The user initiated the repeat.
Recommended actions No action required.
Air Fluid
Meaning o The length of the sample segment was too short.
o The end of the sample segment was not detected. It takes too long for a sample
segment to reach the electrodes.
Message ID 19
Priority 4
Possible cause o Air bubbles are present.
o The ISE tower is clogged.
o The dosing from the sample probes is inaccurate.
o The ISE tubing is leaking, blocked, or not conditioned.
o Mixing is too vigorous.
Recommended actions o Check the quality of the sample.
o Check the sample tubes.
o Check the ISE tower and ISE tubing for leaks and blockages.
o Repeat the measurement.
Where a flag description gives a list of recommended actions, work through each step in
turn until you have solved the problem. Proceed to the next step only after you have com-
pleted the previous one.
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