Hach TU5 Serie Instructions D'utilisation page 15

Hold the automatic cleaning module vertically when it is installed on the instrument or the vial can break.
If the vial breaks, water will get in the vial compartment and instrument damage will occur.
Do not to touch or scratch the glass of the process vial. Contamination or scratches on the glass can cause
measurement errors.
Based on the environmental conditions, is necessary to wait a minimum of 15 minutes to let the system
become stable.
Note: Make sure that no particles fall into the vial compartment.
1. Push menu.
2. Select SENSOR SETUP>[select analyzer]>DIAG/TEST>MAINTENANCE>VIAL
REPLACEMENT.
3. Complete the steps that show on the controller display. The date the vial was replaced is
automatically saved after the last screen shows.
Refer to the illustrated steps that follow to replace the vial. To protect the new vial from
contamination, use the vial replacement tool to install the vial.
At illustrated step 3, put the automatic cleaning module on its side on a flat surface if a service
bracket is not installed near the instrument.
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