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Yokogawa AMN31 + AMM12T

Product Introduction: A high-performance I/O module combination for Yokogawa’s CENTUM VP DCS and FA-M3 PLC systems. The AMN31 serves as a robust terminal base, while the AMM12T provides multi-channel analog voltage signal multiplexing for reliable data acquisition.

Technical Specifications (AMN31 Base Unit):

  • Channels: 16 analog input channels
  • Input Types: 4-20 mA, 0-20 mA, 0-5 V, 1-5 V
  • Accuracy: ±0.05% of full scale

Detailed content

  • Isolation: Fully isolated channel-to-channel and channel-to-ground
  • Operating Temp: -10°C to +55°C
  • Storage Temp: -40°C to +85°C
  • Power Consumption: Max 5 W
  • Dimensions: 144 × 129 × 100 mm (W×H×D)
  • Weight: Approx. 1.5 kg
  • Mounting: DIN rail mount
  • Protection: IP20 (front panel)
  • Compliance: IEC 61508 SIL 2, EN 61000-6-2/-6-4

    Technical Specifications (AMM12T Multiplexer):

  • Type: Voltage input multiplexer module (S2 revision)
  • Input Channels: Multi-channel high-density voltage inputs
  • Signal Handling: Fast scanning and multiplexing for centralized data acquisition
  • Compatibility: Directly interfaces with AMN31 base and Yokogawa control systems
  • Application: For use in CENTUM VP DCS and FA-M3 PLC distributed I/O systems

    Key Features:

  • High-Density I/O: Maximizes channel count in limited cabinet space
  • Signal Isolation: Prevents ground loops and cross-talk between signals
  • SIL 2 Rated: Suitable for safety-related control applications
  • Easy Configuration: Configurable via Yokogawa system software (e.g., FieldMate)
  • Robust Construction: Industrial-grade design for harsh plant environments

    Applications:

  • Process monitoring and control in refineries and petrochemical plants
  • Power generation (thermal, hydro, renewable)
  • Steel and metal processing
  • Water treatment and distribution
  • Pharmaceutical and fine chemical manufacturing

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