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Data Acquisition with up to 128-Channels of USB Analog I/O and Flexible Signal Conditioning

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A highly integrated multifunction data acquisition and control system offers an attractive solution for adding portable, easy-to-install high-speed analog and digital I/O capabilities to any PC or embedded system with a USB port. The DAQ-Pack from Acces I/O Products performs signal conditioning such as RC filtering, current inputs, RTD measurement, bridge completion, thermocouple break detection, voltage dividers, small signal inputs and sensor excitation voltage supply. Sustained sampling speeds up to 500 kHz are available for 32, 64, 96, or 128 single-ended or differential analog inputs. Groups of eight channels at a time can be independently software configured to accept different input ranges. A real-time internal calibration system allows the unit to compensate for offset/gain errors giving more accurate readings. Additional features include two 16-bit analog outputs, 16 high-current digital I/O lines, and a programmable 16-bit counter—all packaged in a small, rugged, gold-zinc plated industrial enclosure with a per channel cost as low as $13.

The small, compact, multifunction I/O DAQ-Pack units provide the user with everything needed to start acquiring, measuring, analyzing and monitoring in a variety of applications. These data acquisition and control devices can be used in many current real-world applications such as precision measurement, analysis, monitoring and control in countless embedded applications. Available accessories include a wide variety of cables and screw terminal boards for quick and easy-to-use, out of the box, connectivity. Also, a DIN rail mounting provision, and a gold-zinc mounting plate, is available for panel mounting.

Advanced calibration models feature a real-time internal autocalibration system that allows the unit to compensate for offset/gain errors. To minimize noise, the board offers oversampling. The channel-by-channel programmable gain feature enables measurement of an assortment of large and small signals in one scan—all under software control at up to 500 kHz. The board’s data buffer and ability to trigger the A/D in real time assures synchronized sampling that is unaffected by other computer operations—an essential requirement for signal, vibration and transient analysis where high data rates must be sustained. Pricing starts at $872.

ACCES I/O Products, San Diego, CA. (858) 550-9559. [www.accesio.com].