Manuale d’uso / di manutenzione del prodotto SCC-TC01 del fabbricante National Instruments
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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.
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.
© 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.
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.
© 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.
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 .
© 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.
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.
© 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 .
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.
© 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.
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.
© 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 .
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 ....
© 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.
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.
© 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.
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.
© 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.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il National Instruments SCC-TC01 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del National Instruments SCC-TC01 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso National Instruments SCC-TC01 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul National Instruments SCC-TC01 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il National Instruments SCC-TC01, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del National Instruments SCC-TC01.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il National Instruments SCC-TC01. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo National Instruments SCC-TC01 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
