National Instruments SCC-TC02 用户手册
© National Instruments Corporation
5
SCC-TC Series Thermocouple Input Modules User Guide
Figure 1. SCC-TC0X Signal Connections
For more information about how to configure the SCC-TC0X module using
NI-DAQmx, refer to the SCC Quick Start Guide.
NI-DAQmx, refer to the SCC Quick Start Guide.
Using the TC0X
Scaling Voltage Measurements
Note
NI-DAQmx includes thermocouple and thermistor conversion utilities that
implement the conversions required in steps 3 and 5 of the following procedure. Refer to
your software documentation for more information on these utilities.
your software documentation for more information on these utilities.
Your software environment may return only voltage measurements from
E/M Series DAQ devices. If so, you must convert voltage measurements to
E/M Series DAQ devices. If so, you must convert voltage measurements to
Thermocouple
Source
AI (
X
)
AI (
X
+8)
SCC-TC0
X
E/M Series
DAQ Device
+
–
–
4.75 k
Ω
1%
5 k
Ω
0.1%
10 k
Ω
10 k
Ω
2.5 k
Ω
+
5 k
Ω
at 25
o
C
10 M
Ω
10 M
Ω
10
μF
16 V
0.1
μF
0.1
μF
-t
o
Ref 5 V
Ref 5 V
LM 4040
2.5 V
0.1%
0.1%
2-Pole Filter/
Buffer Stage
Offset
Calibrator
AI SENSE
TC+
GND
(SCC-TC02
only)
TC-
AI GND
+
–
–