DNx-AI-204 – 24-Channel 0-20/4-20 mA input board


10yglilThe DNx-AI-204 are 24 channel 0-20/4-20 mA input boards for use in UEI’s Cube/RACKtangle/FLATRACK I/O chassis respectively. The high channel count allows a single six slot “Cube” to monitor up to 144 analog inputs in a single 4.0″ by 4.1″ by 5.8″ package while the 12-slot RAC

Ktangle chassis monitors up to 288 channels in a 3U rack.



  • 24 differential analog input channels
  • Maximum sampling rate of 1000 Hz per channel
  • 18-bit resolution
  • ±3 µA accuracy
  • 350 Vrms Isolation
  • Dynamic autozero support
  • Embedded averaging engine

The 0-20 mA input range makes the AI-204 an ideal measurement solution in a host of oil and gas, automotive, aerospace and power generation applications where most transducers work on a 0-20 mA or 4-20 mA scale. Programmable gains of between 1 and 10 combined with the board’s 18-bit A/D converter provides resolution as low as 19.1 nA.
Like all UEI DNx series I/O boards, the DNx-AI-204 offers operation in extreme environments and has been tested to 5g vibration, 100g shock, from -40º to +85º C temperatures and at altitudes up to 70,000 feet. The DNx-AI-204 offers 350 Vrms of isolation between itself and other I/O boards as well as between the I/O connections and the chassis.
The DNx-AI-204 is supported by a complete software “suite” including support for Windows, Linux and all popular RTOS. Windows support is provided by the UEIDAQ Framework which includes a simple yet complete software interface to all popular Windows programming languages and DAQ applications including LabVIEW and MATLAB.

I/O Chassis
Model No.


RACKtangle ®


For DAQ chassis options, click here.