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Summary of Precautions
CTS Tracking Loss Precautions
UniCel DxC Systems Instructions For Use A13914
General Information
October 2005
Page 1-9
1
CTS Tracking Loss Precautions
For systems with 1-Blade Thick CTS, if there is an unusual loss of network
communication, then a message tells you that if you move a tube to a different
instrument, remove its cap.
• A normal shutdown or reboot does NOT give this CTS message.
• When there is no CTS Tracking, if the cap were kept on a previously-pierced tube:
- it would be pierced again and
- pieces of rubber could fall into the sample.
• You will be notified when full CTS Tracking is restored.
Diethylamine HCL and the Calcium ISE Precautions
Do not use controls containing diethylamine HCL. This adversely affects the calcium
Ion-Selective Electrode (ISE).
Electrostatic Discharge (ESD) Hazards
To prevent damage due to electrical static discharge (ESD), always wear the wrist
ground strap when cleaning the probes, Flow Cell, ISE Drain or CC sample, Glass
Cuvettes and reagent mixers; removing, installing or flushing the Flow Cell
Electrodes; cleaning the EIC Ports; bleaching CO
2
Alkaline Buffer Reagent Straw and
Line; removing the CO
2
Measuring Electrode Membrane; replacing EIC Quad-Ring,
Ratio Pump Quad-Rings, Alkaline Buffer Peri-Pump Tubing or Sample and Reagent
Syringes.
Environmental Conditions Precautions
Changes in ambient temperatures and environmental conditions may result in a
"reference drift" message. In this case, the electrolyte chemistries must be
recalibrated.
Fibrin Clots Precautions
Samples should be free of all visible fibrin. Clots could coat or plug the sample
probes, flow cell, chemistry modules, electrolyte injection cup (EIC), or cuvette wash
station leading to instrument malfunction and/or short sampling.
ISE Reagent Precautions
Failure to operate the system with sufficient ISE reagent will result in erroneous
chemistry results. In some cases, results will be obtained without reagents. Therefore,
before starting any run, verify that sufficient reagent is available to complete the run.
MC Reagent Stir Bar Precautions
When cleaning the MC Reagent Lines, Cups, and Stir Bars, The stir bar may rise in the
cup due to air accumulation in the lines. Verify that the stir bar is positioned down into
the bottom of the cup.