Hach TU5 Series 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. Install the automatic cleaning module. If the turbidimeter is not
plumbed, do illustrated steps 1A to 7A. If the turbidimeter is plumbed, do illustrated steps 1B to 9B.
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 17.
Replacement parts and accessories on page 18.