KK135Z Datasheet, PDF (9/10 Pages) KODENSHI KOREA CORP. – Integrated circuit of temperature sensor

KK135Z
KK135Z
Thermo
couple
R3
Thermo electrical
coefficient
J
377 Оhm 52,3 µV/^оС
T
308 Оhm 42,8 µV/^оС
K
293 Оhm 40,8 µV/^оС
S
45,8 Оhm 6,4 µV/^оС
Adjustment: compensation of sensor and resistor
tolerances
1 Selection of 1N4568
2 Adjustment of voltage drop on element R3 by the
resistor R1 to obtain the value of thermoelectrical
coefficient, multiplied by the ambient temperature
(in K degrees).
3 Selection of 135Z and adjustment of R2 for
setting voltage drop on the element R3 according to
thermocouple type
J – 14,32 mV K – 11,17 mV
T – 11,79 mV S – 1,768 mV
Figure 22 – Circuit of cold junction compensation (compensation for ground thermocouple)
*Value of R3 nominal for this thermocouple type
KK135Z
Thermo-
couple
J
R3
1050
Оhm
R4
365 Оhm
Тhermoelectrical
coefficient
52,3 µV/^оС
T
856 Оhm 315 Оhm
42,8 µV/^оС
K
816 Оhm 300 Оhm
40,8 µV/^оС
S
128 Оhm 46,3 Оhm 6,4 µV/^оС
Adjustment: compensation of sensor and resistor tolerances
1 Adjustment by the resistor R1 for obtaining voltage drop on
the element R3, equal to thermoelectrical coefficient multiplied
by the ambient temperature (in K degrees)
2 Adjustment of the resistor R2 for obtaining some voltage
drop on the element R4 according to thermocouple type
J – 14,32 mV K – 11,17 mV
T – 11,79 mV S – 1,768 mV KK
Figure 23 – Circuit of cold junction compensation with unipolar supply
*Value of R3 and R4 nominals for this thermocouple type
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