User Manual

<Appendix 3 For ISC (Inductive Conductivity)>
App.3-2
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
A.Calculationoftemperaturecoefcientfactor(Withknownconductivityatreference
temperature).
K
t
- K
ref
α =
T - T
ref
100
K
ref
X
α =Temperaturecompensationfactorin%/°C
T =Measuredtemperaturein°C
K
t
 =ConductivityatT
T
ref
 =Referencetemperature
K
ref
=ConductivityatT
ref
B.Calculationoftemperaturecoefcientfactor(withtwoknownconductivityvaluesat
different temperatures)
 Measuretheconductivityoftheliquidattwotemperatures,onebelowthereferenceand
abovethereferencetemperaturewiththetemperaturecoefcientsetto0,00%/°Canduse
thefollowingequationtocalculateatemperaturecoefcient(α).
K
T
K
ref
=
1+α ( T - T
ref
)
K
2
- K
1
α
=
K
1
( T
2
- T
ref
) - K
2
( T
1
- T
ref
)
K
1
K
2
K
ref
=
=
1+α ( T
1
- T
ref
)
1+α ( T
2
- T
ref
)
K
1
(1 + α ( T
2
- T
ref
)) = K
2
(1 + α ( T
1
- T
ref
))
K
1
· α ( T
2
- T
ref
) - K
2
· α ( T
1
- T
ref
) = K
2
- K
1
Where T
1
, T
2
:liquidtemperature(°C)
K
1
: conductivity at T
1
(°C)
K
2
: conductivity at T
2
(°C)
(
)
(
(
Figure 1 Conductivity