DNA-AI-212
DNA-AI-212

DNA-AI-212

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Número de Parte:DNA-AI-212

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The DNA-AI-212 and DNR-AI-212 are 12-channel fully isolated, simultaneously sampling thermocouple input boards compatible with UEI’s popular Cube and RACKtangle chassis respectively. The DNA/DNR versions are electronically identical. The DNx-AI-212 features a ±2.048 V input range and 24-bit converters. At the gain of 16 used for most TC types the AI-212 provides an input resolution of 7.6 nanovolt.

An A/D per channel configuration allows simultaneous sampling at rates up to 100 S/s each (1200 S/s aggregate). The A/D per channel configuration virtually eliminates input cross talk and channel settling time issues.

The DNx-AI-212 is an ideal, high accuracy thermocouple measurement device, offering offset and gain errors of less than 0.1°C on all standard thermocouples (including J, K, T, S, E, R). This accuracy combined with the 350 VDC/Vrms channel-to-channel and channel-to-chassis isolation makes the board a perfect solution for industrial temperature measurement, even when using non-isolated thermocouples in high voltage environments. If higher isolation is required, please refer to the DNx-AI-282.

Additionally, the DNx-AI-212 is designed to take advantage of the extremely accurate ADT 7420 digital temperature sensor which provides a dedicated CJC measurement. The CJC sensor is mounted externally on the DNA-STP-212 screw terminal panel. The software included will perform all required TC linearization and CJC compensation and return data in °C, °K, °F or °R when desired. An open thermocouple detection circuit has also been implemented.

Software included with the DNx-AI-212 provides a comprehensive yet easy to use API that supports all popular Windows programming languages as well as supporting programmers using Linux and most real-time operating systems including QNX, RTX, VXworks and more. Finally, the UEIDAQ Framework supplies complete support for those creating applications in data acquisition software packages such as LabVIEW, MATLAB/Simulink, DASYLab or any application which supports ActiveX or OPC servers.

Characteristics:
  • For use in “CUBE” chassis
  • 12 fully differential analog input channels
  • Channel-to-channel and channel-to-chassis isolation
  • Simultaneous sampling (one A/D converter per channel)
  • 24-bit resolution
  • Built-in anti-aliasing filters
  • 24-bit resolution
  • Built-in 50, 60 and 400 Hz rejection
  • 100 Hz, per channel sample rates
  • Built-in CJC circuitry for Thermocouple monitoring

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