National Instruments SCXI-1122

The National Instruments SCXI-1122 (Part Number: 776572-22) is a 16-channel isolated transducer multiplexer module specifically engineered for precise signal conditioning applications. This module features 16 isolated input channels alongside two isolated excitation channels, making it ideal for interfacing with a variety of sensors such as strain gauges, thermistors, RTDs, and thermocouples. The SCXI-1122 operates in two modes; it can be configured for two-wire scanning using all 16 input channels or for four-wire scanning, in which case eight channels serve as sense leads while the remaining eight are utilized as current output channels.

To ensure compatibility, the SCXI-1122 integrates seamlessly with National Instruments Lab-PC+, MIO-16, and SCXI-1200 boards. Additionally, single channel readings can be achieved using the PC-LPM-16 board in conjunction with this module. Its design includes a 50-pin male rear connector and a 48-pin female front connector, facilitating straightforward integration into existing systems. The module's integrated amplifier boasts an input impedance of 1 GΩ when powered on and 100 kΩ when off, supporting high-quality data acquisition.

The SCXI-1122 offers a software-selectable bandwidth of either 4 Hz (-10 dB) or 4 kHz, accommodating diverse signal processing needs. It incorporates a 3-pole RC integrated filter designed for a 4 Hz cutoff frequency, ensuring effective noise reduction with a 60 dB attenuation at 4 Hz. The output specifications are precise, with voltage levels at approximately 3.333 V ±0.04% and current levels at 1.0 mA ±0.04%. The SCXI-1122 is backed by a 2-3 year warranty, and detailed user and maintenance manuals are available for download to assist with setup and operation. Please contact a sales representative for pricing information.