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Product Description

High-Precision Signal Multiplexing Overview

The AMM22-S3 (Model: AMM22) is a high-performance analog input multiplexer unit engineered for the Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). As a pivotal component of the Field I/O (FIO) subsystem, the AMM22-S3 (Style Code: S3) provides 16 isolated channels optimized for the high-resolution acquisition of process variables. The Style S3 revision represents a significant hardware enhancement, offering superior noise immunity and thermal stability compared to earlier iterations. By utilizing a high-speed multiplexing architecture, this module delivers deterministic A/D conversion across all 16 channels, ensuring that critical data from pressure, flow, and level transmitters is digitized with minimal latency and maximum accuracy.

Detailed Technical Specifications

The AMM22-S3 (AMM22-S3) is built to withstand the rigorous electrical environments typical of heavy industrial processing.

  • Manufacturer: Yokogawa Electric Corporation

  • Model Designation: AMM22

  • Order Number: AMM22-S3

  • Hardware Revision: Style S3

  • Number of Channels: 16 Isolated Inputs

  • Input Signal Range: 4–20 mA DC / 1–5 V DC / 0–10 V DC

  • Input Impedance: 250 Ω (for 4-20 mA current mode)

  • Conversion Accuracy: ±0.1% of full scale

  • Signal Resolution: 12 to 16-bit (System configuration dependent)

  • Isolation Voltage: 1500 V AC between field side and system backplane (1 minute)

  • Data Refresh Rate: Fast sampling mode supported via FIO bus

  • Onboard Diagnostics: Open-circuit detection, signal quality monitoring, and hardware status LEDs

  • Power Requirements: 200 mA at 5 V DC; 150 mA at 24 V DC

  • Operating Temperature: 0 to +60°C (32 to 140°F)

  • Storage Temperature: -40 to +85°C (-40 to +185°F)

  • Physical Dimensions: 2.5 x 12.7 x 20.3 cm

  • Unit Weight: 0.2 kg ( 6.1 oz)

  • Compliance: CE, UL, and CSA industrial safety standards

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