United Electronic Industries (UEI) (Walpole, MA) has announced the release of four new analog input boards. All four of the boards offer 8 analog input channels, 24-bit A/D resolution and 120 kilosample/second maximum sampling rates. All four boards also offer complete, 350 Vrms channel-to-channel and channel- to-chassis isolation. The DNR versions are for use with the company’s RACKtangle® chassis, while the DNA versions are designed for installation into the PowerDNA Cube chassis. The DNx-AI-218 offers a ±10 VDC input range suitable for most general purpose DAQ measurements while the DNx- AI-228-300’s ±300 VDC input range makes it a good solution for a host of high voltage applications including battery testing, power plant monitoring, aircraft power monitoring and more.

The boards provide simultaneous sampling and each channel is based on its own oversampled SAR converter. Input gains of 1, 2, 4, 8, 16, 32 and 64 are fully software programmable. A diagnostic input mode flags open circuited connections and overvoltage conditions. Software included with the DNx-AI-218 and 228-300 provides a comprehensive yet easy to use API that supports all popular Windows programming languages. UEI also provides factory written drivers for all popular non-Windows operating systems including QNX, VxWorks, RTX, InTime, 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.

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This article first appeared in the June, 2013 issue of Defense Tech Briefs Magazine.

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