ABB DSAI 133A Analog Input Board
Description
ABB DSAI 133A Analog Input Board is a high-density analog input module designed for precise industrial signal collection and conversion in critical control environments. It integrates seamlessly with ABB control systems to convert field sensor signals into high-resolution digital data for real-time process control.
| Specification | Value |
|---|---|
| Product Model | DSAI133A (Order Number: 3BSE018290R1) |
| Input Channels | 16 channels (divided into 4 isolated blocks of 4 channels each) |
| Input Signal Types | 4-20 mA (standard), 0-20 mA |
| Input Impedance | Approximately 250 ohms per channel |
| Resolution | 16-bit ADC (65,536 counts) |
| Accuracy | ±0.1% of full scale at 25 degrees Celsius |
| Sampling Rate | Approximately 10 ms per channel (configurable scan groups) |
| Isolation | 500 VAC between field and system ground |
| Operating Temperature | 0 to 60 degrees Celsius |
| Certifications | CE, UL 61 |
Key Features:
- Supports HART transparent pass-through for remote transmitter configuration and diagnostics
- Built-in diagnostic tools including per-channel LED indicators, wire break detection (below 2.5 mA), and over/under-range alarms
- High common mode rejection ratio (CMRR) to eliminate ground loop errors in harsh electrical environments
- Modular design for easy integration and maintenance with ABB control systems
Applications:
- Power generation plants for monitoring boiler air and fuel pressure, flame stability, and process variables
- Refineries and chemical plants for collecting temperature, pressure, and flow sensor data
- Industrial automation systems for machine condition monitoring and process control
Related Models:
- ABB DSAI 131A
- ABB DSAI 132A
- ABB DSAI 134A