ABB DSAI146 Analog Input Module (S800 I/O Series)(XIONGBA)

ABB DSAI146 Analog Input Module (S800 I/O Series)(XIONGBA)

Brand Model: ABB DSAI146
Product Name: Analog Input Module (8-Channel, Universal)
Warranty: 1–2 years (new), 90 days (refurbished)
Size: 100 mm × 100 mm × 70 mm
Weight: 0.3 kg
Origin: Sweden
Inventory: New surplus, refurbished (available via industrial distributors)
Delivery Time: 3–10 days (global shipping)

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Description

Product Overview

The ABB DSAI146 is an 8-channel universal analog input module designed for ABB’s S800 I/O system, compatible with AC 800M controllers and System 800xA DCS. It converts analog signals (voltage/current/temperature/resistance) from field devices into digital data for PLC/DCS processing. Key features include hot-swappable design, 2-wire/4-wire sensor support, and channel-by-channel diagnostics, making it suitable for process control in oil & gas, power generation, and manufacturing.

 

Engineered with galvanic isolation (500 VAC) per channel, the DSAI146 mitigates electrical interference and supports SIL 2 safety integrity level for critical applications. It integrates with ABB’s Control Builder M software for configuration and diagnostics, enabling real-time monitoring of input signals and module health.

Technical Specifications

Parameter Name Parameter Value
Product Model DSAI146 (3BSE018156R1, 3BSE042319R1 variants)
Manufacturer ABB
Product Type Analog Input Module (S800 I/O Series)
Channels 8 isolated channels (universal input)
Input Types
– Voltage 0–10 V, ±10 V, 0–5 V, ±5 V
– Current 0–20 mA, 4–20 mA (2-wire/4-wire)
– Temperature Pt100, Pt1000, Ni100, Ni1000 (RTD), K/J/T/E/N thermocouples
– Resistance 0–500 Ω, 0–1 kΩ
Accuracy ±0.05% of full scale (25°C)
Sampling Rate 250 ms/channel (max. 8 channels/2 s)
Resolution 16-bit + sign (voltage/current), 15-bit (RTD/thermocouple)
Isolation 500 VAC/channel, 250 VAC between channels and system ground
Power Supply 24 VDC (via backplane, ≤1.5 W total)
Environmental Ratings IP20 (indoor), -20°C to +70°C (operating), -40°C to +85°C (storage)
Certifications CE, UL, CSA, ATEX (non-hazardous area), RoHS
Physical Dimensions 100 mm × 100 mm × 70 mm (W×H×D)

(XIONGBA)

Main Features and Advantages

Universal Input Flexibility:

 

  • Multi-Signal Support: Configurable per channel for voltage, current, RTD, or thermocouple inputs, reducing inventory needs for diverse applications.
  • 2-Wire Sensor Integration: Directly powers loop-powered transmitters (4–20 mA) without external power supplies, simplifying wiring.

 

Reliability & Safety:

 

  • Galvanic Isolation: Prevents ground loops and surge damage (up to 2 kV transient protection), critical in noisy industrial environments.
  • SIL 2 Compliance: Meets IEC 61508 safety standards for use in emergency shutdown systems (ESD) and safety instrumented systems (SIS).

 

Operational Efficiency:

 

  • Hot-Swap Capability: Replace modules without system shutdown, minimizing downtime in continuous processes.
  • Diagnostic Functions: On-board LEDs indicate channel status (normal/fault), and software reports open circuits, short circuits, or out-of-range signals.

 

System Integration:

 

  • Backplane Communication: Connects to ABB’s S800 I/O backplane via DCON protocol (10 Mbps), enabling real-time data transfer to controllers.
  • Redundancy Options: Supports redundant I/O configurations when paired with ABB’s DSAI146R (redundant variant).

Application Areas

Process Industries:

 

  • Oil & Gas: Monitors pressure transmitters, flow meters, and temperature sensors in refineries and pipelines.
  • Chemical Plants: Reads pH meters, level sensors, and reactor temperature probes for process optimization.

 

Power & Utilities:

 

  • Thermal Power Stations: Measures steam pressure, turbine vibration, and generator winding temperatures.
  • Renewables: Tracks solar panel voltage, wind turbine pitch angles, and battery state-of-charge.

 

Manufacturing:

 

  • Food & Beverage: Controls pasteurizer temperatures and filling machine pressure sensors (IP65-rated enclosures optional).
  • Pharmaceuticals: Monitors cleanroom humidity, autoclave pressure, and bioreactor pH levels for GMP compliance.

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Installation & Maintenance

Installation:

 

  1. Mounting: Insert into S800 I/O rack slot, secure with retaining clip.
  2. Wiring: Connect field signals to TB841 terminal block (polarity-sensitive for current/voltage inputs).
  3. Configuration: Use Control Builder M to set input type, scaling, and alarm thresholds per channel.

 

Maintenance:

 

  • Periodic Checks: Verify channel accuracy using a calibrated signal generator (recommended annually).
  • Fault Handling: Replace faulty modules without powering down the system (hot-swap).
  • Firmware Updates: Download via ABB’s Service Portal to address compatibility or bug fixes.

Product Guarantee

New DSAI146 modules come with a 1–2 year warranty, covering defects in materials and workmanship. Refurbished units include a 90-day warranty and undergo testing for signal accuracy and isolation integrity. ABB’s global service network provides technical support, and spare parts are typically available for 10+ years post-production.

 

For hazardous area applications, consult ABB’s documentation to ensure compliance with local regulations (e.g., ATEX, IECEx). The DSAI146 is ideal for systems requiring high-precision analog data acquisition with built-in safety and diagnostic features, balancing performance and cost-effectiveness in industrial automation setups.
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