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Instruction Manual
HI 9912
Wall Mounted
Dual pH/ORP
Controller
http://www.hannainst.com
These Instruments are in
Compliance with the CE Directives
A
L
A
R
M
L
IN
E
S
E
T
O
R
P
S
E
T
p
H
0
S
E
C
O
N
D
S
m
V
2
0
0
0
O
R
P
T
I
M
E
R
M
I
N
U
T
E
S
9
0
P
R
O
P
O
R
T
I
O
N
A
L
S
E
T
T
I
N
G
S
1
1
0
2
.
5
5
7
.
5
0
S
E
C
O
N
D
S
p
H
2
.
0
0
pH
T
I
M
E
R
M
I
N
U
T
E
S
9
0
P
R
O
P
O
R
T
I
O
N
A
L
S
E
T
T
I
N
G
S
1
1
0
2
.5
5
7
.
5
1
0
0
5
0
C
A
L
A
L
A
R
M
ON
OFF
5
0
1
5
0
S
E
T
R
D
X
mV
O
F
F
S
E
T
S
L
O
P
E
A
L
A
R
M
O
N
O
F
F
0
.
5
1
.
5
p
H
H
I 9
9
mV
ORP
3
S
E
T
ACID
A
L
2
F
E
3
0
0
pH
0
1
2
0
100
200
m
V
ALAR
M