Hach TU5400 sc Basic User Manual page 23

9.2 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.
9.3 Clean the instrument
Do not use solvents to clean the instrument.
The instrument is maintenance free. Regular cleaning is not necessary for normal operation. If the
exterior of the instrument becomes dirty, wipe the instrument surfaces with a clean, moist cloth.
9.4 Clean the vial
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.
When the turbidity reading shows that there is contamination in the process vial or "VIAL CLARITY"
shows on the controller display, clean the vial.
1. Push menu.
2. Select SENSOR SETUP>TU5x00 sc>DIAG/TEST>MAINTENANCE>VIAL CLEANING.
3. Complete the steps that show on the controller display. The instrument automatically saves the
cleaning process date after the last screen shows.
4. If the optional automatic cleaning module is installed, push menu and select
SETUP>TU5x00 sc>START WIPE to start the automatic cleaning process.
5. If the optional automatic cleaning module is not installed, clean the vial with the manual vial wiper.
Carefully remove most of the water in the vial. Carefully put the vial wiper into the process vial so that no
water spills out.
Clean the process vial with the manual vial wiper as shown in the illustrated steps that follow.
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