SCC-68 User Guide
34
ni.com
Temperature Sensor
Temperature sensor
Accuracy..........................................±0.3 °C over a 0 to 55 °C range
Type .................................................Thermistor
Convert the voltage to temperature using the following Steinhart-Hart
equation:
where
A
= 1.2873851
×
10
–3
B
= 2.3575235
×
10
–4
C
= 9.4978060
×
10
–8
where
R
1
= 4,870
Ω
V
T
is the CJC voltage measurement
For more information about the temperature sensor, refer to the
Using the
Temperature Sensor for Cold-Junction Compensation (CJC)
section.
T
1
A B
ln
R
T
( )
(
)
C
ln
R
T
( )
(
)
3
+
+
---------------------------------------------------------------------
273.15
–
=
R
T
R
1
V
T
5
V
T
–
(
)
--------------------
=
