Datasheet

KT- and KTY-Series Temperature Sensors
Data Sheet 4 2000-07-01
General Technical Data: KT- and KTY-Series Temperature Sensors
These temperature sensors are designed for the measurement, control and regulation
of air, gases and liquids within the temperature range of − 50 °Cto+ 150 °C. The
temperature sensing element is an n-conducting silicon crystal in planar technology. The
gentle curvature of the characteristic,
R
T
= f (T
A
), is described as a regression parabola
in the following expressions.
The resistance of the sensor can be calculated for various temperatures from the
following second order equation, valid over the temperature range − 30 °C to + 130 °C.
The temperature factor
k
T
can be derived from this:
The temperature at the sensor can be calculated from the change in the sensors
resistance from the following equation, which approximates the characteristic curve.
R
T
R
25
1 α∆T
A
×β∆T
A
2
×++()× fT
A
()==
with: α = 7.88 10
− 3
K
− 1
; β = 1.937 10
− 5
K
− 2
k
T
R
T
R
25
-------- 1 α∆T
A
×β∆T
A
2
×++ fT
A
()== =
T 25
α
2
4– β× 4 β× k
T
×+ α–
2 β×
---------------------------------------------------------------------+


°C=