Roche Diagnostics
Instructions for Use · Version 10.0 139
9180 Electrolyte Analyzer 9 Maintenance
Monthly maintenance
o Unscrew the red transport housing from the reference electrode and check that
the o-ring on the electrode is properly seated. Save the transport housing.
o Carefully screw the reference electrode into the reference electrode housing and
place the assembly into the left side of the measuring chamber.
o Close the clamp on the left electrode holder by lifting it until it locks into the back
position. Ensure that the electrodes are seated properly.
Figure 9-6
o Plug the tubing of the reference electrode into the receptacle below the left side of
the measuring chamber.
o Slide the measuring chamber back until it snaps into position, and close the front
cover of the analyzer.
Figure 9-7
o Press YES to perform daily maintenance.
o If daily maintenance is not needed, press NO until CALIBRATION? is displayed.
Press YES and a complete calibration cycle will be performed.
o After cleaning the reference electrode housing, QC measurements on 3 levels
have to be performed to verify the performance of the instrument.
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