O
Op
pe
erra
attiin
ng
g IIn
ns
sttrru
uc
cttiio
on
n CORREX
®
UP 2.3-919
3
3..4
4
S
Sa
affe
etty
y w
wa
arrn
niin
ng
gs
s c
co
on
nc
ce
errn
niin
ng
g d
de
effe
ec
cttiiv
ve
e e
elle
ec
cttrriic
ca
all ttu
ub
be
e h
he
ea
atte
errs
s
In the event of a defect in the electrical tubular heating element, the M8 thread
bolt of the impressed-current anode and the connecting cable between anode
and potentiostat may carry mains voltage. If these parts are touched, the risk
of a ffa
atta
all e
elle
ec
cttrriic
c s
sh
ho
oc
ck
k cannot be excluded. For reasons of safety, the electri-
cal tubular heating element must therefore be disconnected from the power
supply before undertaking any work on the impressed-current anode system.
4
4
D
De
es
siig
gn
na
atte
ed
d u
us
se
e
The impressed-current anode system CORREX
®
UP is a permanent cathodic
corrosion protection system for enamelled hot-water tanks. The CORREX
®
UP
system must therefore not be used for any other purpose and only in compli-
ance with the present fitting and operating instructions.
Hydro Magnesium assumes no liability whatsoever for any damage caused by
use other than the designated use or by a failure to observe the present
instructions.
5
5
F
Fu
un
nc
cttiio
on
na
all p
prriin
nc
ciip
plle
e
The CORREX
®
UP system is composed of an interrupter potentiostat and one
or more titanium anodes connected with one another by means of a connec-
ting cable. The impressed current is supplied by the interrupter potentiostat
and the protective current is fed into the tank via a wear-free titanium anode.
The electrochemical reactions taking place at the titanium anode (positive
pole) and at the spots and crevices in the enamel of the storage tank in con-
tact with the water acting as the cathode (negative pole) result in a transport
of charges (electrons) towards the defective spots. The electrochemical surfa-
ce potential in the area of the spots and crevices in contact with the water is
thus lowered to such an extent that the corrosion speed in the steel wall of
the tank becomes virtually zero. Depending on water quality, calcareous
deposits may build up in addition on the defective spots.
The system works as a so-called interrupter potentiostat, i.e. the protective
current flow through the titanium anode is interrupted periodically in short
intervals. During these interruptions, the potential existing between the tita-
nium anode and the inner wall of the hot-water tank is measured and trans-
28
0425_Bed.anl_UP_Innen_gesamt.qxd 25.05.2006 19:14 Seite 28
