ABB Analog Input Board DSAI 133A
Description
ABB Analog Input Board DSAI 133A (Order Code 3BSE018290R1) is a high-density 16-channel analog input module designed for precise industrial signal acquisition and conversion, compatible with ABB AC 800M, Symphony Plus, and MOD 300 distributed control systems.
| Specification | Value |
|---|---|
| Input Signal | 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; 4 isolated blocks of 4 channels each |
| Operating Temperature | 0 to 60 degrees Celsius |
| Communication | ModuleBus interface for AC 800M CPU (e.g., PM825) |
Key Features:
- Transparent HART pass-through support for remote device configuration and diagnostics
- Comprehensive diagnostics including per-channel LED indicators, wire break detection, and over/under-range alarms
- High common mode rejection ratio to minimize interference in harsh electrical environments
- Modular design with clear wiring labels for easy installation and maintenance
Applications:
- Process control in power plants, refineries, and chemical facilities
- Monitoring of pressure, temperature, flow, and level sensors in industrial automation systems
- Data acquisition for combustion control and boiler efficiency optimization
Related Models:
- DSAI145
- DSAI110A
- DSAI120A