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ABB 3BUS209090-010 Signal Conditioning Board
Product Description
A professional signal conditioning board designed for ABB industrial automation systems (e.g., AC 800M, Symphony Plus). It focuses on processing analog signals from field sensors (e.g., temperature, pressure transmitters)—including signal amplification, linearization, and noise suppression—to convert weak, distorted field signals into standardized, stable signals for upper-level controllers, ensuring accurate data acquisition in complex industrial environments.
Key Specifications
- Signal Input: Supports 8 channels of analog signals; compatible with 4-20mA current signals and 0-10V voltage signals (configurable per channel).
- Signal Processing: Amplification gain 1-10x (adjustable); linearization error ≤0.1% full scale (FS); built-in 50Hz/60Hz notch filter for power frequency noise suppression.
- Output Signal: Standard 4-20mA or 0-10V analog output; accuracy ±0.05% FS.
- Isolation Performance: 2.5kV AC galvanic isolation between input, output, and power; ESD protection (IEC 61000-4-2, ±8kV contact discharge).
- Power Supply: 24V DC (18-30V DC); power consumption ≤3W (full load).
- Environment: Operating temperature -40°C to +70°C; humidity 5%-95% (non-condensing); protection grade IP20.
- Mechanical: 35mm DIN rail-mounted; dimensions 100×80×25mm; compatible with ABB standard I/O racks.
- Catalog No.: 3BUS209090-010 (primary model; core specs consistent across regions).
Advantages & Features
- Multi-Channel & Flexible Configuration: 8-channel design meets multi-point signal conditioning needs; per-channel input/output type adjustment adapts to diverse sensor signals (e.g., 4-20mA pressure transmitters, 0-10V level sensors).
- High-Precision Processing: ±0.05% FS output accuracy and linearization function eliminate signal distortion from sensor drift or long-distance transmission, ensuring reliable controller data.
- Strong Anti-Interference: Notch filter targets power frequency noise; galvanic isolation blocks ground loops and electrical interference from field wiring, stable in high-noise environments (e.g., near motors, inverters).
- Easy Integration: DIN rail design aligns with ABB I/O modules; plug-and-play with ABB control systems, no custom adapters required; configurable via ABB Control Builder M software.
- Compact & Space-Saving: Small form factor (100×80×25mm) reduces control cabinet space, suitable for dense signal conditioning setups.
Application Fields
- Process Industry: Conditions 4-20mA temperature/pressure signals from chemical reactor transmitters, ensuring accurate DCS monitoring of reaction parameters.
- Power Plants: Processes 0-10V steam flow signals in turbine auxiliary systems, eliminating noise from high-voltage equipment for stable flow control.
- Water Treatment: Adjusts 4-20mA turbidity/ph signals from water quality sensors, providing standardized data for dosing system regulation.
- Manufacturing: Amplifies weak 4-20mA vibration signals from industrial machine sensors, enabling early fault detection of production equipment.
Precautions
- Signal Matching: Confirm input signal type (4-20mA/0-10V) per channel before wiring; avoid input overrange (>30V for voltage, >30mA for current) to prevent board damage.
- Wiring Requirements: Use shielded twisted-pair cables for input/output wiring; ground the shield at the board end (single-point grounding) to reduce interference.
- Power Supply: Use a regulated 24V DC power supply with overload protection; check polarity before power-on—reverse connection may damage internal components.
- Installation Environment: Avoid direct sunlight, corrosive gas, or high humidity; keep 5cm clearance around the board for heat dissipation.
- Maintenance: Calibrate channels quarterly with ABB calibration tools; clean dust from vents every 3-6 months. If output signal drifts significantly, check isolation circuits or replace the board.
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The structure and details of the product:

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