ABB DSAI146 3BSE007949R1 analog input module

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ABB DSAI146 3BSE007949R1 Analog Input Module

Introduction

The ABB DSAI146 (3BSE007949R1) is an Analog Input Module used in ABB’s Symphony / Advant / 800xA control systems. It converts process signals (temperature, pressure, flow, level, etc.) from the field into digital signals for the control system.

With high accuracy and reliability, it is widely applied in power plants, petrochemical, metallurgy, water treatment, and pulp & paper industries.

Technical Specifications

• Model: DSAI146

• Order Code: 3BSE007949R1

• Type: Analog Input Module

• Input Channels: 16 channels

• Signal Types: 4–20 mA current / 0–10 V voltage (configurable)

• Isolation: Channel-to-system bus optical isolation

• Resolution: 12/16 bit (depending on configuration)

• Accuracy: ±0.1% FS

• Sampling Rate: ~10 ms/channel

• Power Supply: From I/O bus

• Mounting: DIN rail or rack-mounted

• Operating Temperature: 0℃ ~ +55℃

• Storage Temperature: -40℃ ~ +70℃

• Protection Class: IP20

• Certifications: CE, UL, RoHS

Features & Benefits

1. High-Density Design – 16 AI channels per module, saving cabinet space.

2. Accurate Measurement – Supports standard 4–20 mA/0–10 V signals.

3. Reliable Isolation – Channel-to-system bus isolation improves safety.

4. Fast Response – Suitable for real-time process control.

5. Modular Expansion – Easy to scale and upgrade.

6. High Compatibility – Works with ABB Symphony / Advant / 800xA systems.

7. Easy Maintenance – Hot-swappable with online diagnostics.

Applications

• Power & Energy – Process monitoring in power plants

• Oil & Gas, Petrochemical – Temperature and pressure monitoring

• Metals & Mining – Process data acquisition

• Water & Wastewater – Level and flow monitoring

• Pulp & Paper – Process variable input

• General Process Automation

Installation & Maintenance Notes

1. Signal Matching – Ensure input is 4–20 mA or 0–10 V to avoid damage.

2. Wiring Practice – Keep analog signal cables separate from power lines.

3. Grounding – Maintain proper grounding to minimize noise and surges.

4. Cooling & Environment – Ensure good cabinet ventilation and avoid harsh conditions.

5. Calibration – Periodically calibrate for signal accuracy.

6. Maintenance – Hot-swap capability reduces downtime during replacement

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The structure and details of the product：

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