Hanna Instruments HI 98186 User Manual
Page 12
12
SALINITY COMPENSATION
If the sample contains significant concentration of salinity, the read out values
must be corrected, taking into account the lower degree of oxygen solubility in
this situation.
Before taking any DO measurements remember to set the salinity value from
the SETUP menu (page 33).
The salinity affects the D.O. concentration, decreasing its value. The table below
shows the maximum oxygen solubility at various temperatures and salinity levels.
C
º
l
e
v
e
L
a
e
S
t
a
)l
/
g
(
y
ti
n
il
a
S
F
º
l/
g
0
l/
g
0
1
l/
g
0
2
l/
g
0
3
l/
g
5
3
0
0
6.
4
1
4
6.
3
1
4
7.
2
1
0
9.
1
1
0
5.
1
1
0.
2
3
2
1
8.
3
1
1
9.
2
1
7
0.
2
1
9
2.
1
1
1
9.
0
1
5.
6
3
4
9
0.
3
1
5
2.
2
1
7
4.
1
1
3
7.
0
1
8
3.
0
1
2.
9
3
6
4
4.
2
1
5
6.
1
1
1
9.
0
1
2
2.
0
1
9
8.
9
8.
2
4
8
3
8.
1
1
9
0.
1
1
0
4.
0
1
5
7.
9
4
4.
9
4.
6
4
0
1
8
2.
1
1
8
5.
0
1
3
9.
9
2
3.
9
3
0.
9
0.
0
5
2
1
7
7.
0
1
1
1.
0
1
0
5.
9
2
9.
8
5
6.
8
6.
3
5
4
1
9
2.
0
1
8
6.
9
0
1.
9
5
5.
8
0
3.
8
2.
7
5
6
1
6
8.
9
8
2.
9
3
7.
8
1
2.
8
7
9.
7
8.
0
6
8
1
5
4.
9
0
9.
8
9
3.
8
0
9.
7
6
6.
7
4.
4
6
0
2
8
0.
9
6
5.
8
7
0.
8
0
6.
7
8
3.
7
0.
8
6
2
2
3
7.
8
3
2.
8
7
7.
7
3
3.
7
2
1.
7
6.
1
7
4
2
0
4.
8
3
9.
7
9
4.
7
7
0.
7
7
8.
6
2.
5
7
5
2
4
2.
8
9
7.
7
6
3.
7
5
9.
6
5
7.
6
0.
7
7
6
2
9
0.
8
5
6.
7
3
2.
7
3
8.
6
4
6.
6
8.
8
7
8
2
1
8.
7
8
3.
7
8
9.
6
1
6.
6
2
4.
6
4.
2
8
0
3
4
5.
7
4
1.
7
5
7.
6
9
3.
6
2
2.
6
0.
6
8
2
3
9
2.
7
0
9.
6
4
5.
6
9
1.
6
3
0.
6
6.
9
8
4
3
5
0.
7
8
6.
6
3
3.
6
1
0.
6
5
8.
5
2.
3
9
6
3
2
8.
6
7
4.
6
4
1.
6
3
8.
5
8
6.
5
8.
6
9
8
3
1
6.
6
8
2.
6
6
9.
5
6
6.
5
1
5.
5
4.
0
0
1
0
4
1
4.
6
9
0.
6
9
7.
5
0
5.
5
6
3.
5
0.
4
0
1
2
4
2
2.
6
3
9.
5
3
6.
5
5
3.
5
2
2.
5
6.
7
0
1
4
4
4
0.
6
7
7.
5
8
4.
5
1
2.
5
9
0.
5
2.
1
1
1
6
4
7
8.
5
1
6.
5
3
3.
5
7
0.
5
7
9.
4
8.
4
1
1
8
4
0
7.
5
7
4.
5
0
2.
5
5
9.
4
5
8.
4
4.
8
1
1
0
5
4
5.
5
3
3.
5
7
0.
5
3
8.
4
5
7.
4
0.
2
2
1
Note
Note
Note
Note
Note: The relationship between salinity and chlorinity for sea water is given by the equation
below:
Salinity (g/l) = 1.80655 Chlorinity (g/l)