Thermo Scientific Orion Star
™
and Star Plus Meter User Guide
EN-68
Conductivity
at 20 °C
(mS/cm)
Salinity
Correction
Value (ppt)
Conductivity
at 20 °C
(mS/cm)
Salinity
Correction
Value (ppt)
Conductivity
at 20 °C
(mS/cm)
Salinity
Correction
Value (ppt)
5
3
20
13
35
25
6
4
21
14
36
25
7
4
22
15
37
26
8
5
23
15
38
27
9
6
24
16
39
28
10
6
25
17
40
29
11
7
26
18
42
30
12
8
27
18
44
32
13
8
28
19
46
33
14
9
29
20
48
35
15
10
30
21
50
37
16
10
31
22
52
38
17
11
32
22
54
40
18
12
33
23
56
42
19
13
34
24
This table was calculated from the International Oceanographic Tables, Vol . 1, National Institute
of Oceanography of Great Britain, Womley, Godaming, Surrey, England and Unesco, Paris 1971 .
Conductivity Setup Menu Features
Temperature Compensation and Reference Temperature
The Orion Star and Star Plus conductivity meters have the ability to use a
temperature compensation feature that calculates and displays the conductivity
measurements at a reference temperature of 5 °C, 10 °C, 15 °C, 20 °C or 25 °C
(Orion Star meters have a reference temperature of 15 °C, 20 °C or 25 °C only) .
The temperature compensation can be set as linear for most aqueous samples,
non-linear for ultra pure and low ionic strength samples or off for non-temperature
compensated conductivity measurements .
The closer the sample temperature is to the selected reference temperature, the
more accurate the conductivity measurement will be, especially if the temperature
compensation coefficient is estimated or inaccurate .
Meter Setup Menu Features
