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Product Introduction
The Yokogawa AAT141-S50 TC/mV Input Module is a high-performance input module designed for use in advanced industrial automation systems. Specifically developed for Yokogawa’s CENTUM VP and ProSafe-RS control platforms, the AAT141-S50 is tailored to measure thermocouple (TC) signals and millivolt (mV) inputs with high precision. This module is a crucial part of modern process control systems where accurate temperature and low-voltage signal acquisition is critical to maintaining efficiency, safety, and process stability.
Built with reliability and long-term stability in mind, the AAT141-S50 supports a wide range of thermocouple types and offers excellent cold junction compensation (CJC) and filtering features. The module is ideal for harsh industrial environments, ensuring data integrity and continuous system availability even under challenging conditions.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | AAT141-S50 |
| Type | TC/mV Input Module |
| Input Type | Thermocouple (Types B, E, J, K, N, R, S, T) / mV |
| Input Range | -10 mV to +100 mV (for mV input) |
| Accuracy | ±0.1% of span (typical, depending on input type) |
| Resolution | 16-bit A/D conversion |
| Cold Junction Compensation | Internal, with high-accuracy temperature sensor |
| Number of Channels | 16 input channels |
| Input Isolation | Isolated per channel |
| Input Impedance | >10 MΩ |
| Sampling Rate | 1 sample/second (configurable) |
| Diagnostic Functions | Open wire detection, module fault, abnormal value detection |
| Operating Temperature | 0 to 60°C (32 to 140°F) |
| Storage Temperature | -40 to +85°C (-40 to +185°F) |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Power Consumption | Approx. 4.5 W |
| Mounting Type | DIN rail or baseplate mounting |
| Dimensions (W x H x D) | 107.5 × 130 × 32.8 mm |
| Weight | 0.2 kg |
| Certifications | CE, CSA, ATEX, IECEx |
| System Compatibility | CENTUM VP, ProSafe-RS |
Product Applications
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Refineries & Petrochemical Plants: Used in temperature monitoring for distillation columns, heat exchangers, and reactors.
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Power Generation Facilities: Ensures accurate boiler and turbine temperature readings.
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Pharmaceutical Manufacturing: Critical in maintaining required temperatures in bioreactors and ovens.
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Food & Beverage Industry: Used in ovens, refrigeration, and pasteurization temperature control.
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Water Treatment Plants: Temperature monitoring in filtration and chemical dosing systems.
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Semiconductor Fabrication: Supports mV-level monitoring in sensitive processes requiring high accuracy.
Product Advantages
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High Accuracy and Stability: With precision analog-to-digital conversion and superior filtering, the module ensures stable and precise readings over time.
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Wide Thermocouple Compatibility: Supports all commonly used TC types, enhancing flexibility in field applications.
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Built-in Cold Junction Compensation: Eliminates the need for external compensation circuits, simplifying wiring and reducing installation costs.
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Robust Channel Isolation: Prevents cross-talk and enhances protection from ground loops and transient voltages.
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Comprehensive Diagnostics: Allows quick detection of open wires, short circuits, and abnormal inputs, minimizing downtime.
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Modular Design: Easily integrates into Yokogawa systems with minimal configuration, reducing deployment time.
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Low Power Consumption: Energy-efficient, ideal for large-scale deployments.
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Compact Size: Saves space in dense control cabinets while offering high input density.
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Environmental Durability: Designed for industrial temperatures and humidity levels.
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Global Certification: Meets international standards for safety and performance.
Frequently Asked Questions (FAQs)
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What thermocouple types does the AAT141-S50 support?
It supports Type B, E, J, K, N, R, S, and T thermocouples. -
Can the module accept mV inputs directly?
Yes, the AAT141-S50 accepts direct millivolt inputs ranging from -10 mV to +100 mV. -
Is cold junction compensation internal?
Yes, it includes a built-in CJC function for accurate thermocouple readings. -
How many input channels does the module have?
It offers 16 isolated input channels. -
Is the module hot-swappable?
Typically, the module should be replaced with power off, but system designs may allow hot-swapping with caution. -
What is the accuracy rating of the module?
±0.1% of the input span is the typical accuracy, depending on signal type and conditions. -
What diagnostic features are included?
Open wire detection, abnormal value identification, and internal fault monitoring. -
Does it integrate with CENTUM VP directly?
Yes, it is natively compatible with CENTUM VP and ProSafe-RS platforms. -
What is the input impedance for mV signals?
The input impedance exceeds 10 MΩ, ensuring minimal signal loading. -
Where can this module be mounted?
It supports both DIN rail and baseplate mounting for flexible installation.
Related Models (Same Series or Functionality)
| Model | Description | Channels | Signal Type |
|---|---|---|---|
| AAT145-S50 | High-speed thermocouple input module | 8 | TC/mV |
| AAT141-S00 | Basic TC/mV input module | 16 | TC/mV |
| AAI141-H50 | Analog input module with HART support | 16 | 4-20 mA |
| AAI543-S50 | Isolated analog input module | 16 | 1-5 V / 4-20 mA |
| ADV141-P00 | Fast analog voltage input module | 16 | Voltage (0-10 V) |
| AAT132-H00 | RTD input module | 16 | RTD (Pt100, etc.) |
Popular Models from Yokogawa (Similar Applications or Widely Used)
| Model | Function | Channels | Compatible Systems |
|---|---|---|---|
| AAI143-H50 | Analog Input Module (HART) | 16 | CENTUM VP, ProSafe-RS |
| AAI543-H00 | High-performance analog input module | 8 | CENTUM VP |
| AAI841-H50 | HART-enabled universal input module | 16 | CENTUM VP, Stardom |
| ADV151-P00 | High-speed analog input module | 8 | CENTUM CS 3000 |
| AOA141-S00 | Analog Output Module | 16 | CENTUM VP |
| CP451-10 | Communication Processor Module | N/A | CENTUM VP, ProSafe-RS |
