Hach TU5 Series User Instructions page 14

Maintenance
Burn hazard. Obey safe handling protocols during contact with hot liquids.
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Personal injury hazard. Never remove covers from the instrument. This is a laser-based instrument and
the user risks injury if exposed to the laser.
Personal injury hazard. Glass components can break. Handle with care to prevent cuts.
Do not disassemble the instrument for maintenance. If the internal components must be cleaned or repaired,
contact the manufacturer.
Stop the sample flow to the instrument and let the instrument become cool before maintenance is done.
To set the output behavior during maintenance, push menu and select SENSOR
SETUP>TU5x00 sc>DIAG/TEST>MAINTENANCE>OUTPUT MODE.
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 17
Replace the tubing on page 17
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.
3
Sample conditions can increase the frequency of vial replacement.
14 English
W A R N I N G
C A U T I O N
C A U T I O N
C A U T I O N
N O T I C E
N O T I C E
Table 1 Maintenance schedule
C A U T I O N
1 year As necessary
3
X
X
X