SCXI-1100
SCXI-1100 General-Purpose Analog Input Module
Product Description
The SCXI-1100 module is a versatile general-purpose analog input module designed for signal conditioning and data acquisition in industrial and laboratory environments. It provides precise amplification, filtering, and isolation of analog signals from various sensors, converting them into high-quality data suitable for processing by data acquisition systems (DAQs), PLCs, or computers. This module is engineered to handle low-level signals with high accuracy, making it ideal for applications where signal integrity is critical, such as scientific research, industrial monitoring, and automated testing.
In a structural engineering lab, this module connects 16 strain gauges attached to a bridge model, amplifying their millivolt-level signals by a factor of 1000 with a noise floor of less than 5µV. It enables the DAQ system to capture subtle vibration patterns (as small as 0.001g) during load testing, helping engineers identify stress concentration points with 99.8% accuracy. In an automotive testing facility, it processes signals from temperature, pressure, and acceleration sensors in a vehicle engine bay, with its filtering capabilities reducing electromagnetic interference from ignition systems by 40dB, ensuring stable data acquisition even under extreme engine operating conditions. This allows for precise analysis of engine performance parameters, leading to a 5% improvement in fuel efficiency during prototype testing.
Constructed with robust components and featuring modular design, the SCXI-1100 module integrates seamlessly with National Instruments’ SCXI chassis and DAQ systems. It operates reliably in temperature ranges from 0°C to 55°C and supports hot-swapping for easy maintenance, making it a preferred choice in research laboratories, automotive testing, aerospace simulation, and industrial process monitoring.
Product Parameters
- Signal Conditioning Parameters
- Input Channels: 16 single-ended or 8 differential analog input channels
- Supported Signal Types: ±10mV, ±20mV, ±50mV, ±100mV, ±200mV, ±500mV, ±1V, ±2V, ±5V, ±10V
- Gain Options: 1, 10, 100, 1000 (software-selectable per channel)
- Accuracy: ±0.01% of reading + ±0.005% of full scale at 25°C
- Input Noise: <5µV peak-to-peak (at gain 1000)
- Bandwidth: DC to 10kHz (-3dB)
- Isolation: 250V DC channel-to-chassis isolation
- Electrical & Communication Parameters
- Operating Voltage: +5V DC and ±15V DC (supplied by SCXI chassis)
- Power Consumption: 3W typical
- Communication Interface: SCXIbus for communication with chassis and DAQ system
- Maximum Sampling Rate: 50kS/s per channel (when used with compatible DAQ devices)
- Input Impedance: 10MΩ (for voltage signals)
- Common Mode Rejection Ratio (CMRR): ≥100dB at 50/60Hz (at gain 1000)
- Environmental & Reliability Parameters
- Operating Temperature Range: 0°C to 55°C
- Storage Temperature Range: -20°C to 70°C
- Relative Humidity: 5% to 95% (non-condensing)
