Use only fuses that have the specified current and triggering characteristics. An incorrect fuse can
cause injury and damage. Find the cause of a blown fuse before the fuse is replaced. The analyzer
has the three fuses that follow:
• F3: Fuse for the power supply, the PC and the controller, 1 A
• F4: Fuse for the power supply for the valves and pumps, 3.15/4 A
• F5: Fuse for the sensor, 500 mA
Refer to the illustrated steps that follow to replace a fuse.
9.18 Shut down the analyzer
Do the steps that follow to prepare the analyzer to be stopped for a long period (more than 3 days):
1. Rinse the sample tubing, reagent tubing, dispenser and analysis vessel with de-mineralized water
or a cleaning solution.
2. Drain the analyzer to remove all of the liquid.
3. Remove power from the analyzer.
4. Remove the electrodes from the analysis vessel. Keep the electrodes with the supplied electrode
cap. Fill the electrode cap with electrolyte so the electrode does not become dry during storage.
5. Close the filling gap with the supplied plug to prevent evaporation of the electrolyte.
Note: For storage, do not keep the electrodes in de-mineralized water. Demineralized water significantly
decreases the lifespan of the electrodes.
Section 10 Troubleshooting
Refer to the following table for common problem messages or symptoms, possible causes and
corrective actions.
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