National Instruments SCC-TC02 manual
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Table of contents for the manual
USER GUIDE SCC-TC Series Thermocouple Input Modules The SCC-TC Series thermocouple input modules, SC C-TC01 and SCC-TC02, accept input signals from B-, E-, J-, K-, N-, R-, S-, and T-type thermocouples. The thermocouple inpu ts are filtered and passed into a differential amplif ier with a gain of 100. The output of the amplifier passes through a dua[...]
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 av oid electrical shock. When symbol is marked on a product, it denotes a component that may be hot. T ouching this component may result in bod ily injury . bold Bold text denotes items that you m[...]
© National Instruments Corpor ation 3 SCC-TC Series Th ermocouple Input Mo dules User Guide ❑ Numbers 1 and 2 Phillips screwdri vers ❑ W i re insulation stripper s ❑ NI-D A Q (current version) for Wi ndows 2000/NT/XP Note Software scaling of measurements is not supported on the Macintosh operating system. Refer to the Converting Voltage Meas[...]
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 ico n sho wn in Figure 1. Figure 1. SCC-TC0 X Icon Y ou can plug the SCC-TC0 X into any analog input so cket on the SC-2345. The socket you select determines which E Series D A Q dev[...]
© National Instruments Corpor ation 5 SCC-TC Series Th ermocouple Input Mo dules User Guide The SCC-TC02 has a f ixed scre w-term inal receptacle and a remov able screw-terminal block, as sho wn in Figure 2. Figure 2. SCC-TC02 T wo-Part Scre w-T erminal System After you install the SCC-TC02, attach the inpu t signals to the screw terminals of the [...]
SCC-TC Series Thermocouple Input Modules User Guide 6 ni.com The amplified thermocouple signal and cold-junction sensor sig nal are measured by E Serie s D A Q device channel X and channel X + 8 respecti vely , where X is 0 to 7 depending on where you plug the SCC-TC0 X . Refer to Figure 3 for SCC-T C0 X signal connections. Figure 3. SCC-TC0 X Sign[...]
© National Instruments Corpor ation 7 SCC-TC Series Th ermocouple Input Mo dules User Guide Y ou can use the follo wing formulas to con vert 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 × 10 –7 R T is the resistance of th[...]
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 dev ice channel is saturated. The pull-up and bias resistors sat[...]
© National Instruments Corpor ation 9 SCC-TC Series Th ermocouple Input Mo dules User Guide NI-DAQmx Complete the following steps to configure th e SCC-TC module using NI-DAQmx. 1. Open Measurement & A utom ation Explorer . 2. Right-click Devices and Interfaces and select Create New . 3. Under NI-DA Qmx SCC Connector Block , select SC-2345 . C[...]
SCC-TC Series Thermocouple Input Modules User Guide 10 ni.com 6. Under Accessory: , select SC-23 45 . 7. Click the Configure button. A ne w window appears listing the sock ets (connector reference designators) of the SC-2345. 8. Select the SC-2345 socket where you installed an SCC. 9. Click Add and select the SCC you installed. If th e module name [...]
© National Instruments Corpor ation 11 SCC-TC Series Thermocouple Input Modules User Guide 8. Enter the specif ic values for your application in the Setti ngs tab . Context help information for each setting is pro vided on the right side of the screen. 9. Choose the type of thermocouple you have connected to your SCC module. For the CJC Source par[...]
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 thermo couple connections at both the SCC and the thermocouple calibrator ar e at the same temperature. 2. Connect the th[...]
© National Instruments Corpor ation 13 SCC-TC Series Thermocouple Input Modules User Guide where V TC is thermocouple voltage. V ESERIES is E Series D A Q device v oltage. This step provides proper scaling for the th ermocouple amplifier in the SCC-TC0 X . 2. Measure the reference-juncti on (cold-junction) temperat ure. a. Read the thermistor v ol[...]
SCC-TC Series Thermocouple Input Modules User Guide 14 ni.com Amplifier Characteristics Open thermocouple detectio n current.....250 nA max 1 (assuming floating ther mocouple) Common-mode rejection rati o ................110 dB min 1 Output range .............. .............. ...............± 10 V ma x 1 T ransfer Characteristics Gain ............[...]
© National Instruments Corpor ation 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..................... .............. ................. . 1.91 V (0 ° C) to 0.58 V (55 ° C) No[...]
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.) I/O ........................ ................[...]
© National Instruments Corpor ation 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. Electromagnetic Compatibility Electrical emissions.....[...]
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 o f the module. Figure 4. SCC Module Bottom View T able 1 lists the signal connection corresponding to each pin. A C H( X ) and AC H ( X + 8) are the analog input signal channels of the E Series D A Q devic[...]
© National Instruments Corpor ation 19 SCC-TC Series Thermocouple Input Modules User Guide 13 + 15 V 14 –15 V 15 — 16 — 17 — 18 — 19 — 20 — Table 1. SCC Module Pin Signal Connections for SCC-TC0 X Modules (Continued) Pin Number Signal[...]
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