Page 2 - What You Need to Get Started
SCC-TC Series Thermocouple Input Modules User Guide 2 ni.com When symbol is marked on a product, it denotes a warning advising you to take precautions to avoid electrical shock. When symbol is marked on a product, it denotes a component that may be hot. Touching this component may result in bodily i...
Page 3 - Unpacking the Module; Installing the Module
© National Instruments Corporation 3 SCC-TC Series Thermocouple Input Modules User Guide ❑ Numbers 1 and 2 Phillips screwdrivers ❑ Wire insulation strippers ❑ NI-DAQ (current version) for Windows 2000/NT/XP Note Software scaling of measurements is not supported on the Macintosh operating system. Ref...
Page 4 - Connecting the Input Signals
SCC-TC Series Thermocouple Input Modules User Guide 4 ni.com A blue stripe on the label identifies the SCC-TC0 X as an analog input module. The label also displays the icon shown in Figure 1. Figure 1. SCC-TC0 X Icon You can plug the SCC-TC0 X into any analog input socket on the SC-2345. The socket ...
Page 6 - Cold-Junction Sensor Output and Accuracy
SCC-TC Series Thermocouple Input Modules User Guide 6 ni.com The amplified thermocouple signal and cold-junction sensor signal are measured by E Series DAQ device channel X and channel X + 8 respectively, where X is 0 to 7 depending on where you plug the SCC-TC0 X . Refer to Figure 3 for SCC-TC0 X s...
Page 7 - Uncompensated Connectors and Accuracy
© National Instruments Corporation 7 SCC-TC Series Thermocouple Input Modules User Guide You can use the following formulas to convert the cold-junction sensor voltage to cold-junction temperature: where T K is the temperature in kelvin. where a = 1.295361 × 10 –3 b = 2.343159 × 10 –4 c = 1.018703 ×...
Page 8 - Detecting Open Thermocouples; Errors Due to Open-Thermocouple Detection Circuitry; Configuring the SCC System
SCC-TC Series Thermocouple Input Modules User Guide 8 ni.com Detecting Open Thermocouples The SCC-TC0 X contains a 10 M Ω pull-up resistor that connects to + 5 V to detect open thermocouples. To determine if you have an open thermocouple, check whether the corresponding E Series DAQ device channel i...
Page 10 - Virtual Channels, Physical Channels, and Tasks
SCC-TC Series Thermocouple Input Modules User Guide 10 ni.com 6. Under Accessory: , select SC-2345 . 7. Click the Configure button. A new window appears listing the sockets (connector reference designators) of the SC-2345. 8. Select the SC-2345 socket where you installed an SCC. 9. Click Add and sel...
Page 11 - Creating a Virtual Channel in Traditional NI-DAQ; Calibrating System Offsets
© National Instruments Corporation 11 SCC-TC Series Thermocouple Input Modules User Guide 8. Enter the specific values for your application in the Settings tab. Context help information for each setting is provided on the right side of the screen. 9. Choose the type of thermocouple you have connecte...
Page 12 - Calibrating the SCC-TC0
SCC-TC Series Thermocouple Input Modules User Guide 12 ni.com Calibrating the SCC-TC0 X Using a Thermocouple Calibrator To calibrate the system using a thermocouple calibrator, complete the following steps: 1. Make sure that the thermocouple connections at both the SCC and the thermocouple calibrato...
Page 13 - Analog Input
© National Instruments Corporation 13 SCC-TC Series Thermocouple Input Modules User Guide where V TC is thermocouple voltage. V ESERIES is E Series DAQ device voltage. This step provides proper scaling for the thermocouple amplifier in the SCC-TC0 X . 2. Measure the reference-junction (cold-junction...
Page 14 - Amplifier Characteristics
SCC-TC Series Thermocouple Input Modules User Guide 14 ni.com Amplifier Characteristics Open thermocouple detection current.....250 nA max 1 (assuming floating thermocouple) Common-mode rejection ratio ................110 dB min 1 Output range ...........................................± 10 V max 1 ...
Page 15 - Open Thermocouple Detection
© National Instruments Corporation 15 SCC-TC Series Thermocouple Input Modules User Guide Cold-Junction Sensor Cold-junction sensor accuracy ............... ± 0.4 ° C max from 15 to 35 ° C, ± 0.75 ° C max from 0 to 15 ° C and 35 to 55 ° C Output..................................................... 1...
Page 16 - Physical; Environmental
SCC-TC Series Thermocouple Input Modules User Guide 16 ni.com Physical TC01 dimensions ....................................7.8 cm by 2.92 cm by 1.85 cm (3.1 in. by 1.15 in. by 0.73 in.) TC02 dimensions ....................................8.89 cm by 2.92 cm by 1.85 cm (3.50 in. by 1.15 in. by 0.73 in...
Page 17 - Electromagnetic Compatibility; CE Compliance
© National Instruments Corporation 17 SCC-TC Series Thermocouple Input Modules User Guide Note For UL and other safety certifications, refer to the product label, or visit ni.com/hardref.nsf , search by model number or product line, and click the appropriate link in the Certification column. Electro...
Page 18 - I/O Connector Pin Assignments
SCC-TC Series Thermocouple Input Modules User Guide 18 ni.com I/O Connector Pin Assignments Figure 4 shows the I/O connector pins on the bottom of the module. Figure 4. SCC Module Bottom View Table 1 lists the signal connection corresponding to each pin. ACH( X ) and ACH( X + 8) are the analog input...