Yokogawa AAT141-S00 CENTUM VP/FIO TC/mV/RTD Input Module

Product Overview

The Yokogawa AAT141-S00 functions as a high-versatility analog input interface for the CENTUM VP and CS 3000 FIO (Field network I/O) architectures. This module provides 16 fully isolated channels designed to capture low-level signals from Thermocouples (TC), millivolt (mV) sources, and Pt100 RTDs. It serves as a critical bridge between field temperature sensors and the Distributed Control System (DCS), ensuring high-precision data acquisition for complex process loops. We supply this module in 100% brand new, original condition to guarantee the measurement accuracy and structural integrity required for mission-critical industrial environments.

Part Number Breakdown: AAT141-S00

• AAT141: TC/mV/RTD Input Module (16-channel, Isolated).

• -S: Standard type for general industrial applications.

• 0: Always 0 (Standard configuration).

• 0: Basic type without specialized conformal coating.

Technical Specifications

• Number of Channels: 16 (Fully Isolated)

• Thermocouple Support: Types J, K, E, B, R, S, T, and N

• mV Range: -100 to 150 mV / -20 to 80 mV

• RTD Compatibility: Pt100 (3-wire type)

• Measurement Accuracy: TC: ±30 μV | RTD: ±120 mΩ | mV: ±30 μV (span -20 to 80 mV)

• Input Resistance: 2 MΩ or larger (Both Power ON and Power OFF)

• Wiring Resistance: 1000 Ω or less (TC/mV) | 40 Ω or less per wire (RTD)

• Condition: 100% Brand New Original

Engineering Advantages

The AAT141-S00 eliminates common signal acquisition failures through advanced hardware engineering and multi-protocol support:

• Universal Input Flexibility: Unlike single-purpose modules, the AAT141-S00 handles TC, mV, and RTD signals on a single hardware platform. This versatility allows engineers to mix different sensor types within the same I/O nest, significantly reducing the variety of spare parts required on-site.

• Superior Galvanic Isolation: Every channel maintains total electrical isolation from the system backplane and neighboring channels. This architecture blocks ground loops and prevents high-voltage transients in the field from damaging the core DCS electronics.

• High Impedance Stability: The module maintains an input resistance of 2 MΩ or larger regardless of power status. This high impedance prevents signal loading errors, ensuring that the voltage measured by the DCS accurately reflects the actual process temperature at the sensor tip.

• High-Resolution Thermal Tracking: With a TC accuracy of ±30 μV, this module detects minute temperature shifts in reactors, boilers, and furnaces. This precision enables the control system to execute tighter PID loops, improving overall product yield and energy efficiency.

FAQs

• Can I connect both Thermocouples and RTDs to the same module?

  Yes. The AAT141-S00 supports Thermocouples, mV signals, and 3-wire Pt100 RTDs. You can configure the input type for each channel via the CENTUM VP software to match your field instrumentation requirements.

• Does this module require a specific terminal block for Cold Junction Compensation?

  Yes. To maintain the specified TC accuracy, you must use a terminal block equipped with a built-in Cold Junction Compensation (CJC) sensor. This allows the module to accurately calculate the absolute temperature from the thermocouple’s millivolt output.

• How does the 3-wire RTD connection improve accuracy?

  The 3-wire configuration allows the AAT141-S00 to measure and subtract the lead-wire resistance from the total circuit resistance. This compensation ensures that the DCS calculates the temperature based solely on the Pt100 sensor's resistance, even over long cable runs.

• Is this a genuine Yokogawa factory-sealed unit?

  Absolutely. We guarantee that every AAT141-S00 is 100% brand new and original. Each module arrives in its original factory packaging and includes a full 1-year warranty for your peace of mind.