As-Needed/As-Required Maintenance
Cleaning CO
2
Alkaline Buffer Lines
Maintenance UniCel DxC Systems Instructions For Use A13914
Page 10-92 October 2005
Cleaning CO
2
Alkaline Buffer Lines
Bleaching of the Alkaline Buffer reagent straw and line is recommended to clean the
reagent line whenever the buffer is prematurely decolorizing (fading).
Prepare a 10% bleach
*
solution (one part sodium hypochlorite 5.25%, nine parts
deionized water). Use within 24 hours.
26
CAUTION
Pinching Hazard. When lowering the ISE module, keep fingers clear.
Release the locking pin and lower the ISE module into the cavity. Reinstall
the ISE module cover.
27 Calibrate the ISE chemistries.
Step Action, continued
(7 of 7)
*
DO NOT use Ultra Bleach Advantage.
CAUTION
To prevent damage due to electrical static discharge (ESD), wear the wrist
ground strap when performing this procedure. For further instructions, refer
to "Basic Laboratory Practice
" in the beginning of this chapter.
Step Action
1 Loosen the two Phillips screws from the ISE module cover and remove the
cover.
2 Release the locking pin on the ISE module and lift up the module until it
clicks.
3 Disconnect line #33 from the alkaline buffer reagent bottle and place the
line in a small container. (The container is used to catch the line drainage
while priming).
4 Unscrew and remove the alkaline buffer reagent bottle cap and insert the
straw into a container of 10% bleach solution.
(1 of 3)
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