
Product Description
ABB DSAI133N Safety Analog Input Module – 3BSE018526R1
The ABB DSAI133N (Part No. 3BSE018526R1) is a high-precision safety-rated analog input module engineered for mission-critical process control applications within ABB Advant Master and 800xA distributed control systems. Designed to meet stringent safety integrity requirements, this module delivers exceptional accuracy and reliability for industrial automation environments demanding SIL2/SIL3 certification.
Technical Specifications
- Input Channels: 32 differential analog inputs
- Signal Range: ±10V DC, ±20mA (configurable per channel)
- Accuracy: ±0.025% of full scale at 25°C
- Resolution: 16-bit A/D conversion
- Isolation: Channel-to-channel and channel-to-bus galvanic isolation
- Safety Rating: IEC 61508 SIL2/SIL3 certified
- Operating Temperature: 0°C to +60°C
- Power Consumption: Max 8W from backplane
- Mounting: Standard ABB Advant rack system
Application Scenarios
The DSAI133N excels in safety-instrumented systems across multiple industries:
- Oil & Gas: Emergency shutdown systems (ESD), fire & gas detection, burner management
- Chemical Processing: Reactor temperature monitoring, pressure transmitter interfaces, batch control
- Power Generation: Turbine control, boiler safety systems, emissions monitoring
- Pharmaceutical: Clean room environmental control, sterile process validation
- Water Treatment: Flow measurement, pH monitoring, chlorine dosing control
Integrated Solutions & System Architecture
This module seamlessly integrates with ABB's Advant Master controller platform, providing deterministic I/O scanning and redundant communication paths. The DSAI133N supports hot-swappable operation for zero-downtime maintenance and features built-in diagnostics with LED status indicators for rapid troubleshooting. Configuration is performed through ABB Control Builder software with pre-validated function blocks for accelerated commissioning.
Key Advantages
- Dual-processor architecture ensures fail-safe operation with automatic fault detection
- Wide common-mode rejection (>100dB) eliminates ground loop interference
- Conformal coating protects against harsh industrial environments
- Backward compatible with legacy DSAI130 installations for seamless upgrades
- Comprehensive self-diagnostics reduce mean time to repair (MTTR)
Related Products
| Part Number | Description | Link |
|---|---|---|
| 57120001-PS | ABB DSAI 133 Analog Input Unit 32 Channels | View Product |
| 3BSE018290R1 | ABB DSAI133A Analog Input Board 32 Ch | View Product |
| 57120001-P | ABB DSAI 130 Analog Input Board 16 Channels | View Product |
Quality Assurance & Support
Every DSAI133N module undergoes rigorous factory acceptance testing (FAT) and ships with full calibration certificates traceable to international standards. Our technical team provides pre-sales engineering support, system integration guidance, and post-installation commissioning assistance to ensure optimal performance in your control architecture.
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