CFP-TC-125

Thermocouple and RTD Modules for Compact FieldPoint NI cFP-TC-120, NI cFP-TC-125, NI cFP-RTD-122, NI cFP-RTD-124 • 8 temperature inputs • Thermocouple or millivolt • 2-, 3-, or 4-wire RTD • Built-in signal conditioning between channels • 250 V common-mode isolation on cFP-TC-125 • 50 and 60 Hz noise rejection • 16-bit resolution • Input ranges configurable in software for each channel • 2,300 Vrms bank isolation for transient overvoltage protection • Hot-swappable with autoconfiguration • -40 to 70 °C operating range Module cFP-TC-120 cFP-TC-125 cFP-RTD-122 cFP-RTD-124 Input Channels 8 8 8 8 Resolution (bits) 16 16 16 16 Input Type Thermocouple Millivolt Thermocouple Millivolt 2-, 3-wire RTD Resistance 2-, 4-wire RTD Resistance Input Ranges SoftwareConfigurable per Channel J,K,R,S,T,N,E, and B ± 25 mV, ±50 mV ±100 mV, -20 to 80 mV J,K,R,S,T,N,E, and B -20 to 80 mV Pt 100, Pt 1,000 0 to 400, 0 to 4000 Ω Pt 100 0 to 400 Ω 50/60 Hz Noise Filter     All-Channel Update Period 1.13 s (0.88 Hz) 0.22 s (Filter Off) 0.99 s (Filter On) 1.08 s (0.93 Hz) 1.08 s (0.93 Hz) Common-Mode Between Channels – 250 Vrms – – Safety Isolation 2,300 Vrms bank isolation 2,300 Vrms bank isolation 2,300 Vrms bank isolation 2,300 Vrms bank isolation Overview The NI cFP-TC-12x and cFP-RTD-12x are versatile temperature input modules for Compact FieldPoint used to measure thermocouples, millivolt-level voltages, thermistors, and 2-, 3-, and 4-wire RTDs. They are used in applications such as temperature chamber control, device testing, and process control. Thermocouples are low-cost, flexible temperature devices. RTD sensors are used in applications for acquiring temperatures with high accuracy. Two- and 3-wire RTDs work well for applications with short signal wires and low noise levels; 4-wire RTDs are well-suited for applications with long signal wires or high noise levels. All of these I/O modules include overranging and onboard diagnostics to ensure troublefree installation and maintenance. The modules measure and linearize signals on board to return scaled values to your control or monitoring software. The cFP-TC-12x and cFP-RTD-12x modules have NIST-traceable calibration certificates (available upon request) to ensure accurate and reliable analog measurements. Compact FieldPoint Compact FieldPoint is designed for industrial control applications that perform advanced embedded control, data logging, headless operation, and Ethernet connectivity. Compact FieldPoint, a rugged, reliable NI platform, is designed for industrial and mobile environments with high shock, vibration, and temperature extremes. Isolation The cFP-TC-125 provides 250 Vrms common-mode voltage protection between channels, and all cFP-TC-12x and cFP-RTD-12x modules feature optical bank isolation with 2,300 Vrms of breakdown isolation. In addition, the cFP-TC-12x and cFP-RTD-12x offer double insulation for up to 250 Vrms of operational isolation. You can safely use Compact FieldPoint with the cFP-CB-1 or cFP-CB-3 connector block in applications where hazardous voltages are present. Thermocouple and RTD Modules for Compact FieldPoint cFP-RTD-124 The cFP-RTD-124 includes eight inputs for 2- and 4-wire RTDs. The module uses a stable current source for sensor excitation and an onboard microcontroller that linearizes and scales the measurements to temperature units. You can configure each channel of the modules to return data scaled to temperature (°C, °F, or °K) or resistance. Four-wire RTDs used with the cFP-RTD-124 are ideal for applications involving long signal wires or high signal noise. The 4-wire configuration eliminates the voltage drop caused by lead wire resistance and reduces errors caused by noise. Smart I/O Modules The cFP-TC-12x and cFP-RTD-12x modules offer 16-bit resolution for high-accuracy measurements, and you can connect directly to industrial sensors or units under test with the safety isolation available. The modules filter, calibrate, and scale raw sensor signals to engineering units, as well as perform self-diagnostics to look for problems such as open thermocouples. With cFP-TC-12x and cFP-RTD-12x modules, your software application reads a linearized, calibrated, scaled value from the I/O module, eliminating the error-prone step of converting binary values to temperature. For increased accuracy and noise rejection, the modules use a16-bit delta-sigma analog-to-digital converter (ADC) with an integrated notch filter on each channel, which is configured for 50 and 60 Hz rejection. With high-accuracy 16-bit delta-sigma ADCs on the I/O modules, you also get instrument-quality measurements on an industrially rugged, distributed, embedded system. The cFP-TC-12x and cFP-RTD-12x modules offer a variety of update rates to fit your application, ranging from 0.22 s with filters off and 1.08 to 1.13 s with filters enabled. Overall data throughput depends on filter settings across all channels, software loop speeds, and network speeds. Isothermal Connectivity for cFP-TC-12x Modules For maximum accuracy, NI recommends using an isothermal connector block with a cFP-TC-12x. The cFP-CB-3 isothermal connector block minimizes the temperature gradient across wiring connections, improving the accuracy of the cold-junction measurement, and, therefore, of thermocouple measurements. Compact FieldPoint I/O Connections Compact FieldPoint modules include a built-in power distribution bus that provides multiple power connections on the module. A field-wired power supply connected to the voltage (V) and common (C) terminals is internally connected to a power distribution bus that features additional breakout terminals for voltage supply (VSUP) and common (COM). These terminals offer a convenient way to distribute power to field devices that require external power. Each cFP-TC-12x input channel has two terminals for differential input: 1. Thermocouple positive input (IN+) 2. Thermocouple negative input (IN-) Each cFP-RTD-122 input channel has three terminals: 1. Excitation output (EXCITE) 2. Sensing input (SENSE) 3. Common input (COM) Each cFP-RTD-124 input channel has four terminals: 1. Excitation output (EXCITE) 2. Positive sensing input (SENSE+) 3. Negative sensing input (SENSE-) 4. Common input (COM) cFP-TC-120 The cFP-TC-120 includes eight differential inputs for thermocouples. It also provides cold-junction compensation using a thermistor embedded in the connector block. An onboard microcontroller compensates and linearizes the thermocouple reading to the NIST ITS-90 standard, using an advanced linearization routine for maximum accuracy. cFP-TC-125 In addition to the thermistor and linearization features of the cFP-TC-120, the cFP-TC-125 provides 250 Vrms of common-mode rejection, ideal for applications where differences in voltages might exist between connected thermocouples. The cFP-TC-125 also offers 0.22 s update rates when the 50/60 Hz filter is not enabled. cFP-RTD-122 The cFP-RTD-122 includes eight inputs for 2- and 3-wire RTDs. The module uses a stable current source for sensor excitation and an onboard microcontroller that linearizes and scales the measurements to temperature units. You can configure each channel of the module to return data scaled to temperature (°C, °F, or °K) or resistance. The 3-wire configuration used with the cFP-RTD-122 eliminates errors caused by lead wire resistance but does not reduce errors caused by noise. If your application involves high noise or long wires, you should use 4-wire RTDs with the cFP-RTD-124. BUY ONLINE a t ni.com o r CALL 800 813 3693 (U.S.) 2 Thermocouple and RTD Modules for Compact FieldPoint EX+ (Ch 0) 2-Wire RTD SENSE (Ch 0) COM (Ch 0) Short Jumper Wire EX+ (Ch 1) 3-Wire RTD SENSE (Ch 1) COM (Ch 1) Short Jumper Wire EXCITE+ (Ch 0) SENSE+ (Ch 0) 2-Wire RTD SENSE– (Ch 0) COM (Ch 0) Short Jumper Wires EXCITE+ (Ch 1) SENSE+ (Ch 1) 3-Wire RTD SENSE– (Ch 1) COM (Ch 1) Leave this wire unconnected EXCITE+ (Ch 7) EX+ (Ch 7) 4-Wire RTD SENSE (Ch 7) COM (Ch 7) [c]FP-RTD-122 COM (Ch 7) [c]FP-RTD-124 SENSE+ (Ch 7) 4-Wire RTD SENSE– (Ch 7) Figure 1. Wiring Diagram for cFP-RTD-12x VC Thermocouple IN(+) IN(–) Shield To Next Channel cFP-TC-120 Figure 2. Wiring Diagram for cFP-TC-120 Thermocouple IN(+) Ordering Information IN(–) Shield Figure 3. Wiring Diagram for cFP-TC-125 Note: Connections depend on the application. cFP-TC-125 NI cFP-TC-120 ......................................................................777318-120 NI cFP-TC-125 ......................................................................777318-125 NI cFP-RTD-122 ..................................................................777318-122 NI cFP-RTD-124 ..................................................................777318-124 Recommended System Products NI cFP-2120 ......................................................................777317-2120 NI cFP-1804 ..........................................................................779490-01 NI cFP-BP-4 ............................................................................778617-04 NI cFP-CB-1............................................................................778618-01 NI cFP-CB-3............................................................................778618-03 NI PS-5 Power Supply ..........................................................778805-90 BUY NOW! For complete product specifications, pricing, and accessory information, call 800 813 3693 (U.S.) or go to ni.com/advisors. BUY ONLINE a t ni.com o r CALL 800 813 3693 (U.S.) 3 Thermocouple and RTD Modules for Compact FieldPoint Specifications Typical for -40 to 70 °C unless otherwise noted. Input Characteristics Number of inputs ................................ ADC resolution.................................... Type of ADC ........................................ Filters................................................... Excitation current cFP-RTD-122 ................................... cFP-RTD-124 ................................... Data scaling options cFP-TC-120...................................... cFP-RTD-12x.................................... 8 16 bits, 1 in 65,536 Delta-sigma 50/60 Hz rejection 0.25 mA 2 mA Temperature (°C, °F, °K) or mV Temperature (°C, °F, °K) or resistance (Ω) Weight cFP-TC-120...................................... 130 g (4.6 oz) cFP-TC-125...................................... 125 g (4.4 oz) cFP-RTD-12x.................................... 110 g (3.7 oz) Power Requirement Power from network module cFP-TC-120...................................... 350 mW cFP-TC-125...................................... 650 mW Environmental Operating temperature ....................... -40 to 70 °C Storage temperature........................... -55 to 85 °C (cFP-TC-125 -40 to 80 °C) Relative humidity ................................ 10 to 90%, noncondensing Maximum altitude............................... 2,000 m; at higher altitudes the isolation voltage ratings must be lowered Pollution degree.................................. 2 Update period, all channels cFP-TC-125 Filter off ...................................... 0.22 s Filter on ...................................... 0.99 s cFP-TC-120...................................... 1.13 s cFP-RTD-12x.................................... 1.08 s Signal input bandwidth cFP-TC-120...................................... 3 Hz cFP-TC-125...................................... 12 Hz Cold-junction accuracy cFP-TC-12x With cFP-CB-3 connector block...... 0.25 °C typ, 0.5 °C max Input impedance (cFP-TC-12x) ............ 20 MΩ Input current (cFP-TC-12x)................... 35 nA typ, 140 nA max Input noise .......................................... ±1 LSBpp Overvoltage protection cFP-TC-120...................................... ±40 V cFP-TC-125...................................... ±250 V Common-mode voltage between channels referenced to isolated ground cFP-TC-125...................................... 250 V cFP-TC-120...................................... 1 V cFP-RTD-12x.................................... 2 V Shock and Vibration Operating vibration, random (IEC 60068-2-64) ............................. 10 to 500 Hz, 5 grms Operating vibration, sinusoidal (IEC 60068-2-6) ............................... 10 to 500 Hz, 5 g Operating shock (IEC 60068-2-27) ............................. 50 g, 3 ms half sine, 18 shocks at 6 orientations; 30 g, 11 ms half sine, 18 shocks at 6 orientations Safety and Compliance Safety This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: • IEC 61010-1, EN 61010-1 • UL 61010-1, CSA 61010-1 Note: For UL and other safety certifications, refer to the product label or visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column. Safety Isolation Voltage Maximum safety isolation voltage ..... 250 Vrms, Installation Category II (cFP-TC-12x only) Channel-to-channel safety isolation... No isolation between channels Transient overvoltage.......................... 2,300 Vrms Electromagnetic Compatibility This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use: • EN 61326 (IEC 61326): Class A emissions; Industrial immunity • EN 55011 (CISPR 11): Group 1, Class A emissions • AS/NZS CISPR 11: Group 1, Class A emissions • FCC 47 CFR Part 15B: Class A emissions • ICES-001: Class A emissions Physical Characteristics LED indicators POWER (green) ............................... Power on and self-test passed READY (green) ................................ Module configured and ready OPEN TC (red) (cFP-TC-12x)................................ Open or broken thermocouple on channel Dimensions.......................................... 128 by 88 by 25 mm (5.0 by 3.5 by 1.0 in.) BUY ONLINE a t ni.com o r CALL (800) 813 3693 (U.S.) 4 Thermocouple and RTD Modules for Compact FieldPoint CE Compliance This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows: • 2006/95/EC; Low-Voltage Directive (safety) • 2004/108/EC; Electromagnetic Compatibility Directive (EMC) Note: Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance information. To obtain the DoC for this product, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column. Waste Electrical and Electronic Equipment (WEEE) EU Customers: At the end of their life cycle, all products must be sent to a WEEE recycling center. 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We offer extended warranties to help you meet project life-cycle requirements. Visit ni.com/services. ni.com • 800 813 3693 National Instruments • info@ni.com ©2009 National Instruments. All rights reserved. CompactRIO, FieldPoint, National Instruments, National Instruments Alliance Partner, NI, and ni.com are trademarks of National Instruments. Other product and company names listed are trademarks or trade names of their respective companies. A National Instruments Alliance Partner is a business entity independent from National Instruments and has no agency, partnership, or joint-venture relationship with National Instruments. 2009-10741-161-101-D