2 Over view of the pH-Con trol ler
Mains lead
Po wer Unit
Con nec ti on for pH-elec tro de
So cket for CO
2
so le no id val ve
(DEN NER LE CO
2
night cut-off val ve)
Fu se
Con nec ti on for dis play con nec ting lead
Moun ting pla te
Dis play
front flap
pH-elec tro de
3 Over view of func ti ons
No. Key / com po nent Func ti ons / mo de of ope ra ti on
1 pH dis play Dis plays the cur rent pH va lue in the aqua ri um. Fla shes when the me a su red alue dif fers from
the set va lue by mo re than +/
_
0.5 (alarm func ti on)
2 pH To set the de si red pH va lue: Press key, set de si red pH with "+" and "
_
"
3
+
In cre a se set ting
4
–
Re du ce set ting
5 In di ca tor lamp for CO
2
sup ply LED ON = sup ply of CO
2
in pro gress via the con nec ted so le no id val ve
6 kH/pH Au to ma tic pH set ting: Press key and en ter car bo na te hard ness of the aqua ri um wa ter with "+" and
Au to "
_
" The pH-Con trol ler cal cu la tes the cor re spon ding ide al pH va lue (CO
2
con tent) au to ma ti cal ly and
sets the sys tem ac cor din gly.
7 Hys Sets the swit ching va lues (hys te re sis) at which the pH-Con trol ler is to ac ti va te and de ac ti va te
the sup ply of CO
2
: Press key and en ter de si red va lue with "+" and "
_
"
8 pH 4 Ca lib ra ti on of the pH-elec tro de: Place elec tro de in pH 4 ca lib ra ting so lu ti on and press key
9 pH 7 Ca lib ra ti on of the pH-elec tro de: Place elec tro de in pH 7 ca lib ra ting so lu ti on and press key
No te:
Al ways ca lib ra te pH 7 first, then pH 4!
10 In di ca tor lamp LED ON = ca lib ra ti on of the pH-elec tro de re com men ded (eve ry 4 weeks)
Ca lib ra ti on re min der
25
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