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Yokogawa AAI135‑H
- Product Name: AAI135‑H Analog Input Module
- Product Series: Centum VP Series I/O Module
- Product Brief Introduction: High‑precision isolated analog input module manufactured by Yokogawa Electric Corporation, designed for industrial process control systems to collect analog field signals and transmit processed data to the control unit.
Detailed content
- Technical Specifications:
- Input Signal Type: 4–20 mA DC, 0–20 mA DC standard analog current signals
- Number of Input Channels: 16 isolated channels
- Isolation Mode: Channel‑to‑channel isolation, channel‑to‑system bus isolation
- Operating Voltage: 24 V DC (20.4–28.8 V DC)
- Resolution: 16‑bit high‑resolution A/D conversion
- Sampling Speed: Up to 100 ms per channel
- Operating Temperature Range: 0 °C to +60 °C
- Storage Temperature Range: −40 °C to +85 °C
- Humidity Tolerance: 5%–95% RH (non‑condensing)
- Functional Features: Supports signal range self‑diagnosis, open‑circuit detection, over‑range alarm, built‑in surge protection, hot‑swap capability, real‑time signal data acquisition and filtering processing.
- Performance Parameters: Conversion accuracy ≤ ±0.1% of full scale, isolation voltage 1500 V AC (1 minute), electromagnetic compatibility conforms to IEC 61000‑6‑2 and IEC 61000‑6‑3 standards.
- Material Composition: Industrial‑grade flame‑retardant ABS housing, copper‑based printed circuit board, gold‑plated terminal contacts, high‑insulation epoxy resin isolation components.
- Structural Characteristics: Compact DIN‑rail mounting structure, front‑terminal wiring design, modular plug‑and‑play structure, integrated status indicator LEDs.
- Working Principle: Converts analog current signals from field transmitters into digital signals via built‑in A/D converter, performs signal conditioning and fault diagnosis, then communicates with the system controller through internal bus.
- Advantage Highlights: High channel density, excellent isolation performance, high measurement precision, strong anti‑interference capability, stable long‑term operation, compatible with Centum VP control system seamlessly.
- Applicable Industries: Petrochemical, power generation, metallurgy, pharmaceutical, water treatment, pulp and paper, chemical manufacturing.
- Installation Requirements: DIN‑rail mounting (35 mm standard rail), vertical installation, maintain 20 mm minimum ventilation gap around the module, install in dust‑free, vibration‑free control cabinet.
- Usage Precautions: Avoid direct contact with corrosive gases and conductive dust, ensure stable 24 V DC power supply, ground the cabinet reliably, prevent overvoltage surge impact on signal terminals.
