Description

1. Product Title

YOKOGAWA AMM12C – CENTUM VP / CS3000 Voltage Input Multiplexer Module

2. Product Overview

The AMM12C is a rack‑mount voltage‑input multiplexer I/O module for Yokogawa CENTUM CS3000 and CENTUM VP DCS systems. It collects multiple analog‑voltage field signals and multiplexes them to the DCS field control station for high‑density process‑variable acquisition. It delivers 16‑bit high‑precision conversion, galvanic channel‑to‑bus isolation and supports hot‑swap replacement without shutting down control loops. This module optimizes DCS rack space for installations with large quantities of voltage‑type transmitters, reducing total hardware footprint for large‑scale process plants.

3. Technical Specifications

• Brand: YOKOGAWA
• Model: AMM12C
• Warranty: One Year
• Condition: 100% New & Original
• Module Type: Voltage input multiplexer
• Channels: 16 analog voltage inputs
• Resolution: 16‑bit A/D conversion
• Input Signal: Standard 1‑5 VDC process voltage signal
• Accuracy: ±0.1 % full‑scale
• Isolation: Galvanic isolation between field side and DCS backplane
• Hot‑Swap: Supported
• Mounting: Standard CENTUM DCS rack‑mount
• Operating Temp: -20 °C ~ +70 °C
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4. Application Scenarios

• Refinery Process Units: High‑density acquisition of voltage‑output transmitters for temperature, pressure and flow monitoring points.
• Chemical Plant DCS I/O Racks: Multiplexed analog signal collection for large‑scale chemical‑process monitoring loops.
• Power‑Plant Auxiliary Control Systems: Compact voltage‑input I/O for boiler and turbine auxiliary process‑variable monitoring.