Yokogawa AAR145-S03 RTD/Potentiometer Input Module
Product Introduction: A high-density, 16-channel isolated analog input module designed for Yokogawa CENTUM VP DCS systems. It specializes in acquiring resistance signals from RTDs and potentiometers, converting them into digital data for precise temperature and position monitoring in industrial processes.
Technical Specifications
- Input Channels: 16 fully isolated channels
- Input Type: Selectable per channel for RTD or Potentiometer (POT)
Detailed content
- Measurement Current: 1 mA for RTD inputs
- Isolation Voltage: 1500 V AC (1 minute) between input and system
- Accuracy: ±0.1% of full scale
- Data Update Cycle: 100 ms
- Power Supply: 24 V DC ±10%
- Weight: 0.34 kg
- Operating Temperature: -20°C to +70°C
Key Features
- Per-Channel Configurability: Each of the 16 channels can be independently set for RTD or POT input.
- Full Galvanic Isolation: Eliminates ground loops and cross-talk between signals.
- High-Density Design: Maximizes I/O capacity in limited cabinet space.
- Reliable Signal Conversion: Stable 1 mA excitation current ensures accurate RTD measurements.
- Easy Integration: Seamless compatibility with CENTUM VP FIO architecture.
- Diagnostic Functions: Built-in open-circuit detection for sensor fault monitoring.
Applications
- Precise temperature measurement using RTDs in chemical and petrochemical plants.
- Position and angle feedback from potentiometers in industrial machinery.
- Process parameter monitoring in power generation facilities.
- Temperature control loops in pharmaceutical and food manufacturing.
- Calibration and test equipment for industrial sensors.












