Roche Cedex Bio System - Replacing Electrodes

Roche Diagnostics
E-32 Operator’s Manual · Version 3.1
13 ISE operation Cedex Bio System
Replacing electrodes
Replacing electrodes
There are up to three ion-selective electrodes and one ISE Reference Electrode on the
ISE unit. The replacement procedure is the same for all of them.
As part of replacing electrodes, the Electrode Service maintenance action and a main
calibration need to be performed.
Replacing an electrode takes about 15 minutes.
Tools and materials required o ISE Calibrator indirect/urine (on board)
o ISE Reference Solution (on board)
o ISE Deproteinizer
o ISE Etcher
o Activator
o ISE Solution 1
o ISE Solution 2
o ISE Sodium Electrode (if you intend to replace this type of electrode)
o ISE Potassium Electrode (if you intend to replace this type of electrode)
o ISE Reference Electrode (if you intend to replace this type of electrode)
o ISE Dummy Electrode (if you intend to replace this type of electrode or if you no
longer intend to use one of the ion-selective electrodes)
Roche recommend replacing electrodes when their expiration date is reached.
For information on the stability of the electrodes, see their package inserts.
Make sure that you have read and understood section Safety information on page E-19.
The following warning messages in particular are relevant:
o Injury through reagents and other working solutions on page E-19.
o Injury through reagents and other working solutions on page E-19.