The ABB DAI03 is a high-precision analog input module designed for ABB’s S800 I/O system, delivering reliable signal acquisition for industrial automation applications. Part of the S800 I/O family (compatible with AC800M and AC500 platforms), the DAI03 supports 8 channels of universal analog inputs (4–20mA/0–10V) with 16-bit resolution and advanced signal conditioning. With a compact design (102×102×119 mm) and built-in diagnostics, it ensures accurate data capture for sensors, transmitters, and process control systems. Certified for harsh environments (EN 61010, ATEX Zone 2), the ABB DAI03 features short-circuit protection, galvanic isolation, and configurable alarm thresholds, making it ideal for manufacturing, energy, and water treatment industries.
2. Product Parameters
Parameter
Specification
Channels
8 universal analog inputs (current/voltage)
Input Types
4–20mA (loop-powered), 0–10V (voltage)
Resolution
16-bit (±0.015% FS typical)
Sampling Rate
100 ms/channel (configurable)
Isolation
250V AC (channel-to-system, channel-to-channel)
Protection
Short-circuit (auto-recovery for current inputs), overvoltage (30V DC max)
Operating Temperature
-20°C to +60°C (ambient, derate 2%/°C above 40°C)
Dimensions
102 mm (W) × 102 mm (D) × 119 mm (H); 0.4 kg
Certifications
EN 61010, UL 61010, ATEX Zone 2, C1 Div 2, marine (ABS/BV/DNV/LR)
3. Advantages and Features
High Precision & Flexibility: 16-bit resolution (vs. 12–14-bit in standard modules) with universal input scaling, reducing calibration errors by 90%.
Advanced Diagnostics: Channel-level LED indicators (OK/FAULT), open-circuit detection, and configurable alarms via ABB System 800xA.
Modular Design: Hot-swappable in S800 I/O racks, enabling 5-minute replacement without system downtime.
Galvanic Isolation: 250V AC isolation per channel, protecting against ground loops and surges in noisy industrial environments.
Energy Efficiency: Low power consumption (0.8W per module), ideal for battery-powered or energy-sensitive applications.
ABB DAI03
4. Application Fields and Cases
Industries: Oil & gas (wellhead monitoring), manufacturing (machine health monitoring), water treatment (flow/pH sensing), and renewable energy (solar inverter arrays).
Use Case:
Water Treatment Plant: The ABB DAI03 monitored 40 sensors (flow, pressure, pH) in a wastewater treatment facility. Its 16-bit resolution and alarm thresholds reduced false positives by 75%, improving process stability and compliance with environmental standards.
5. Competitor Comparison
Compared to similar analog input modules:
Higher Channel Density: 8 channels (vs. 4–6 channels in 竞品), reducing rack space by 30% in multi-sensor setups.
Integrated Safety Features: Built-in short-circuit protection and isolation (vs. optional add-ons in 竞品), lowering installation costs by 20%.
6. Selection Recommendations
Channel Requirements: Choose the DAI03 (8 channels) for medium-density applications; use DAI01 (4 channels) for low-density or DAI06 (16 channels) for high-density setups.
Signal Type: Verify input type (current/voltage) and range (e.g., 4–20mA for transmitters, 0–10V for sensors).
Environment: Ensure ambient temperature (<60°C) and vibration (IEC 60068-2-6) match site conditions; use surge protectors in lightning-prone areas.
Cost vs. Performance: Balances high resolution and channel density—cost-effective for applications needing precise monitoring (e.g., pharmaceutical manufacturing).
7. Precautions
Wiring: Use shielded twisted-pair cables (24–18 AWG) for analog signals; terminate shields at the controller end to prevent EMI.
Calibration: Perform factory calibration every 2 years (per ABB guidelines); avoid exposing modules to extreme temperatures during calibration.
Power Cycling: Allow 10 seconds between power cycles to reset internal capacitors.
Firmware Updates: Regularly update firmware via ABB’s SD800 tool to ensure compatibility with new protocols (e.g., HART 7).
Shanxi Xinyeda International Trade Co., Ltd. is your trusted partner for ABB DAI03 and other automation spare parts. We provide sales and technical support for industrial components. Visit our website www.xydcontrol.com or contact us for customized solutions.
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Full 12-month warranty on all components
Full 12-month warranty on all components
