Hach TU5400 sc Basic User Manual page 22

Section 9 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.
9.1 Maintenance schedule
Table 2 shows the recommended schedule of maintenance tasks. Facility requirements and
operating conditions may increase the frequency of some tasks.
Task
Clean the vial on page 23
Note: The cleaning interval is dependent on the water quality.
Clean the vial compartment
Replace the vial on page 26
Replace the desiccant cartridge
Note: The replacement interval is dependent on the ambient humidity,
ambient temperature and sample temperature.
Replace the tubing on page 29
8
Two years or as identified by instrument notification.
22 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 2 Maintenance schedule
on page 25
on page 28
1 to 3 months 1 to 2 years As necessary
X
X
8
X
X
X