Hanna Instruments hi 9141 사용자 설명서
25
25
ALTITUDE COMPENSATION
Press the FUNCTION key twice and “F1” will be
displayed.
displayed.
Use the UP and the DOWN keys to set the
altitude between 1 and 1900 m, in steps of
100 m (1 meter = 3.28 feet).
altitude between 1 and 1900 m, in steps of
100 m (1 meter = 3.28 feet).
Altitude affects D.O. concentration decreasing
its value. The following table reports the maxi-
mum oxygen solubility at various temperatures
and altitudes.
its value. The following table reports the maxi-
mum oxygen solubility at various temperatures
and altitudes.
°C
0
2
4
6
8
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
0 m
14.6
13.8
13.1
12.4
11.8
11.3
10.8
10.3
13.8
13.1
12.4
11.8
11.3
10.8
10.3
9.9
9.5
9.1
8.7
8.4
8.1
7.8
7.5
7.3
7.1
6.8
6.6
6.4
9.5
9.1
8.7
8.4
8.1
7.8
7.5
7.3
7.1
6.8
6.6
6.4
300 m
14.1
13.3
12.7
12.0
11.4
10.9
10.4
12.7
12.0
11.4
10.9
10.4
9.9
9.7
9.2
8.8
8.4
8.1
7.8
7.5
7.2
7.1
6.9
6.6
6.4
6.2
9.7
9.2
8.8
8.4
8.1
7.8
7.5
7.2
7.1
6.9
6.6
6.4
6.2
600 m
13.6
12.9
12.2
11.6
11.0
10.5
10.1
12.2
11.6
11.0
10.5
10.1
9.6
9.2
8.7
8.5
8.1
7.8
7.5
7.3
7.0
6.8
6.6
9.2
8.7
8.5
8.1
7.8
7.5
7.3
7.0
6.8
6.6
6.3
6.2
6.0
6.0
1200 m
12.7
12.0
11.4
10.8
10.3
12.0
11.4
10.8
10.3
9.8
9.4
9.0
8.6
8.3
7.9
7.7
7.3
7.0
6.8
6.5
6.4
6.2
5.9
5.7
5.6
9.4
9.0
8.6
8.3
7.9
7.7
7.3
7.0
6.8
6.5
6.4
6.2
5.9
5.7
5.6
1500 m
12.3
11.6
11.0
10.4
11.6
11.0
10.4
9.9
9.5
9.1
8.7
8.3
8.0
7.7
7.3
7.1
6.8
6.6
6.3
6.1
6.0
5.7
5.6
5.4
9.5
9.1
8.7
8.3
8.0
7.7
7.3
7.1
6.8
6.6
6.3
6.1
6.0
5.7
5.6
5.4
1800 m
11.8
11.2
10.6
10.1
11.2
10.6
10.1
9.6
9.2
8.8
8.3
8.0
7.7
7.4
7.1
6.8
6.6
6.3
6.1
5.9
5.8
5.5
5.4
5.2
9.2
8.8
8.3
8.0
7.7
7.4
7.1
6.8
6.6
6.3
6.1
5.9
5.8
5.5
5.4
5.2
°F
32.0
35.6
39.2
42.8
46.4
50.0
53.6
57.2
60.8
64.4
68.0
71.6
75.2
78.8
82.4
86.0
89.6
93.2
96.8
35.6
39.2
42.8
46.4
50.0
53.6
57.2
60.8
64.4
68.0
71.6
75.2
78.8
82.4
86.0
89.6
93.2
96.8
100.4
104.4
104.4
900 m
13.2
12.4
11.9
11.2
10.6
10.2
9.7
9.3
8.9
8.6
8.2
7.8
7.5
7.3
7.0
6.8
6.6
6.4
6.1
11.9
11.2
10.6
10.2
9.7
9.3
8.9
8.6
8.2
7.8
7.5
7.3
7.0
6.8
6.6
6.4
6.1
5.9
5.8
5.8
Altitude, Meters above Sea Level
FUNCTION
UP
DOWN
Untitled-22
26
26
SALINITY COMPENSATION
Press the FUNCTION key until “F2” will be
displayed.
displayed.
Use the UP and DOWN keys to set the salinity
between 0 and 40 g/l.
between 0 and 40 g/l.
Salinity affects D.O. concentration decreasing
its value. Below is the table showing the maxi-
mum solubility of oxygen at various temperature
and salinity.
its value. Below is the table showing the maxi-
mum solubility of oxygen at various temperature
and salinity.
35 g/l
9.0
8.6
8.3
8.0
7.6
7.4
7.1
6.9
6.6
8.6
8.3
8.0
7.6
7.4
7.1
6.9
6.6
6.4
30 g/l
9.3
8.9
8.6
8.2
7.9
7.6
7.3
7.1
6.8
6.6
8.9
8.6
8.2
7.9
7.6
7.3
7.1
6.8
6.6
°C
10
12
14
16
18
20
22
24
26
28
12
14
16
18
20
22
24
26
28
0 g/l
11.3
10.8
10.3
10.8
10.3
9.9
9.5
9.1
8.7
8.4
8.1
7.8
9.5
9.1
8.7
8.4
8.1
7.8
10 g/l
10.6
10.1
9.7
9.3
8.9
8.5
8.2
7.9
7.6
9.3
8.9
8.5
8.2
7.9
7.6
7.4
20 g/l
9.9
9.5
9.1
8.7
8.4
8.0
7.8
7.5
7.2
9.5
9.1
8.7
8.4
8.0
7.8
7.5
7.2
7.0
Salinity (g/l) at Sea Level
°F
50.0
53.6
57.2
60.8
64.4
68.0
71.6
75.2
78.8
82.4
53.6
57.2
60.8
64.4
68.0
71.6
75.2
78.8
82.4
TEMPERATURE COMPENSATION
The D.O. probe has a built-in sensor for
temperature so that the D.O. readings are
automatically compensated for temperature
effects.
temperature so that the D.O. readings are
automatically compensated for temperature
effects.
FUNCTION
UP
DOWN