Hach TU5400 User Instructions page 15

6.1 Maintenance schedule
Table 1 shows the recommended schedule of maintenance tasks. Facility requirements and
operating conditions may increase the frequency of some tasks.
Task
Replace the vial on page 15
Replace the wiper on page 18
Replace the tubing on page 18
6.2 Clean spills
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local,
regional and national regulations.
1. Obey all facility safety protocols for spill control.
2. Discard the waste according to applicable regulations.
6.3 Clean the instrument
Clean the exterior of the instrument with a moist cloth, and then wipe the instrument dry.
6.4 Replace the vial
Keep water out of the vial compartment or instrument damage will occur. Before the automatic
cleaning module is installed on the instrument, make sure that there are no water leaks. Make sure
that all tubing is fully seated. Make sure that the green O-ring is in place to seal the vial. Make sure
that the vial nut is tight.
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.
4
Sample conditions can increase the frequency of vial replacement.
Table 1 Maintenance schedule
C A U T I O N
N O T I C E
N O T I C E
N O T I C E
N O T I C E
1 year As necessary
4
X
X
X
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