Friday, May 08, 2009

Analogue Input Module Added To USB-2404 DAQs

Adept Scientific has announced the release of Measurement Computing's universal analogue input module to the USB-2404 series of simultaneous data acquisition devices. The module provides four channels of 24-bit universal analogue input with integrated signal conditioning. Whereas the USB-2404-10 and USB-2404-60 modules measured voltage only (+/- 10V and +/- 60V, respectively), the USB-2404-UI can be used to measure a variety of signal types, from sensors such as RTDs, thermocouples, load cells and other powered sensors.

Each of the four channels has a detachable six-position spring terminal, which is individually configurable, so a different measurement type can be performed on each channel. All channels are measured simultaneously at up to 100 S/s per channel. The USB-2404-UI can perform the following measurements: voltage; current; thermocouple; RTD (four-wire and three-wire); resistance (four-wire and two-wire); and bridge-based sensors (quarter-, half-, and full-bridge).

Measurement ranges vary for each type of measurement. The device features built-in current and voltage excitation, which is protected from both overcurrent and overvoltage fault conditions. Each channel also has a built-in thermistor for cold-junction compensation (CJC) calculations when measuring thermocouples. An analogue pre-filter removes noise that may be present in the signals prior to conversion.

With 250VAC channel-to-channel and channel-to-ground isolation, the USB-2404-UI protects the individual channels and connected computer and ensures a reliable data stream. The status of the device is indicated by an on-board LED. Each channel has a detachable six-position spring terminal for field wiring connections. Additional connectors are available for purchase. A strain relief kit is also available to secure signal wires.

The USB-2404-UI ships with a 2m USB cable and is powered by the +5V USB supply from a computer - no external power is required. The USB-2404-UI series modules ship with an array of software, including TracerDAQ, a full-featured, out-of-the-box data logging, viewing and analysis application; Universal Library and Instacal installation, calibration and test utility. The USB-2404-UI operates under Microsoft Windows 2000/XP/Vista (32-bit) operating systems.

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