Hach TU5400 User Instructions page 8

Personal injury hazard. The sample line contains water under high water pressure that
can burn skin if hot. Qualified personnel must remove the water pressure and wear
personal protective equipment during this procedure.
Do not let water get in 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 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.
Set the controller power to off. If the turbidimeter is not plumbed, do illustrated steps 1A to 7A. If the
turbidimeter is plumbed, do illustrated steps 1B to 10B. Do a leakage test after plumbing of the
cleaning module. Make sure that there are no water leaks, then install the cleaning module on the
turbidimeter.
For more stringent cleaning requirements, replace the silicone vial wiper with the supplied fiber vial
wiper. Refer to Replace the wiper
Tubing is supplied by the user. Refer to
8 English
W A R N I N G
N O T I C E
N O T I C E
on page 18.
Replacement parts and accessories on page 19.