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1. Reagents and solutions are supplied by the user. Use only reagents supplied by a certified
company. As an alternative, follow the instructions from the Method&Reagent Sheet from the
specific application (EZxxxx) on the manufacturer's website to prepare the reagents.
2. Discard the old reagents from the bottles. If necessary, rinse the bottles with tap water.
3. Fill the bottles with new reagents. Make sure that the tube touches the bottom of the bottle. Make
sure that the tube is not twisted and does not have a blockage.
9.5 Examine and clean the electrode
The electrode maintenance is based on the type of electrode. Refer to the information supplied with
the electrode.
9.6 Calibrate the pH electrode
The calibration procedure is based on the type of electrode. Refer to the information supplied with
the electrode.
9.7 Calibrate the analyzer
The calibration procedure of the analyzer is based on the analyzer method.
For additional information, refer to the expanded version of this manual.
9.8 Clean the analyzer components
Do a cleaning cycle to automatically clean the analyzer components.
For additional information, refer to the expanded version of this manual.
If the cleaning cycle does not remove all of the dirt in the analyzer components or unclog the tubing
and valves, do a manual cleaning as follows:
1. Use a syringe filled with demineralized water to flush tubings, pumps and valves to remove
blockages.
Replace the tubing and valves that stay clogged.
Note: If micropumps stay clogged, examine the micropump duckbills and replace if necessary. Refer to
Replace the micropump duckbills
2. Drain and disassemble the analysis vessel. Clean the analysis vessel components with a moist
cloth. Dry with a soft cloth. Refer to
3. Make sure that all tubing connected to the analysis vessel is at the correct position after
maintenance.
28 English
on page 33.
Figure
10.
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