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        AAR181-S53 S2

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The YOKOGAWA AAR181-S53 S2 is a 12-channel, isolated RTD input module designed for high-precision Pt100 temperature measurement in Yokogawa CENTUM VP FIO systems.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for AAR181-S53 S2

        • Manufacturer:
          Yokogawa
        • Part Number:
          AAR181-S53 S2
        • Product Family:
          Centum CS-Centum VP
        • Product Type:
          Isolated RTD Input Module
        • Input Type:
          Pt100 Ω (3-wire)
        • Number of Channels:
          12 (Isolated)
        • Current Consumption:
          450 mA @ 5V DC
        • Allowable Input Voltage:
          ±5 V
        • Terminal Block (Single):
          ATR8S
        • Terminal Block (Redundant):
          ATR8D
        • Signal Connection:
          Pressure Clamp Terminal / Dedicated Cable
        • Compliance:
          CE, CSA, EAC, RCM, KC
        • Weight:
          0.2 kg
        • Estimated shipping dimensions:
          13x10.7x3.3cm
        • Tariff Code:
          8537101190
        • Country of origin:
          Japan
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Environmental Ratings Performance & Efficiency Applications

        Features:

        • High-Density 12-Channel Isolated Input
        • Superior Noise Immunity for Accurate Readings
        • Flexible Redundancy for Critical Applications
        The YOKOGAWA AAR181-S53 S2 packs 12 independent, isolated RTD inputs into a single compact module. This high density allows you to monitor more temperature points per node, significantly reducing the physical footprint and overall cost of your control cabinet.

        AAR181-S53 S2 effectively rejects electromagnetic interference and ground loop currents. This ensures your Pt100 temperature readings remain stable and accurate, even when installed near variable frequency drives or high-power switching equipment.

        The YOKOGAWA AAR181-S53 S2 supports dual-redundant configuration using the ATR8D terminal block. By pairing two modules, you eliminate single points of failure in critical temperature monitoring loops, guaranteeing continuous operation for essential processes like reactor temperature control.

        The AAR181-S53 S2 YOKOGAWA 12-Channel Isolated RTD Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        YOKOGAWA AAR181-S53 S2 12-Channel Isolated RTD Input Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        YOKOGAWA AAR181-S53 S2 12-Channel Isolated RTD Input Module

        General

        • Manufacturer YOKOGAWA
        • Model AAR181-S53 S2
        • Condition New Original ready stock
        • Product Family AAR181-S50 S2,AAT141-S03 S2,AAT145-S53 S1
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Industrial Operating Temperature: The YOKOGAWA AAR181-S53 S2 operates reliably in ambient temperatures ranging from 0 to 60°C, suitable for indoor control rooms and sheltered field enclosures.
        • Humidity Tolerance: Designed for non-condensing environments, the YOKOGAWA AAR181-S53 S2 functions perfectly at 5 to 95% RH, handling humid coastal or tropical plant conditions.
        • G3 Corrosion Protection (Optional): For severe environments (pulp, paper, wastewater), the YOKOGAWA AAR181-S53 S2 can be ordered with G3 coating options to resist corrosive gases as per ANSI/ISA S71.04.
        • Vibration Resistance: The YOKOGAWA AAR181-S53 S2 withstands continuous vibration up to 2.0 m/s² (14-100 Hz), making it robust for installations near rotating machinery like compressors or turbines.
        • High Isolation Voltage: The YOKOGAWA AAR181-S53 S2 withstands 1500V AC between input and system, preventing high-voltage transients from damaging your controller.
        • Low Power Consumption: Consuming only 450 mA at 5V DC, the YOKOGAWA AAR181-S53 S2 allows you to populate a node fully without exceeding standard power supply limits.
        • High Accuracy Measurement: Utilizing 3-wire Pt100 connections, the YOKOGAWA AAR181-S53 S2 automatically compensates for lead resistance, eliminating wiring errors that cause temperature drift.
        • Optimized Scan Rate: The YOKOGAWA AAR181-S53 S2 integrates directly into the high-speed ESB bus (128 Mbps), ensuring that temperature data is refreshed quickly for real-time control loops.
        • Petrochemical Refining: Monitor distillation column and reactor temperatures accurately with the YOKOGAWA AAR181-S53 S2, ensuring product quality and process safety.
        • Power Generation: Track boiler tube and steam line temperatures. The YOKOGAWA AAR181-S53 S2 provides the stability required for turbine inlet monitoring.
        • Pharmaceutical Manufacturing: Use the YOKOGAWA AAR181-S53 S2 for batch reactor control where precise Pt100 readings are mandatory for FDA compliance and validation.
        • Oil & Gas Pipelines: Deploy the YOKOGAWA AAR181-S53 S2 for remote temperature monitoring of pumping stations, where long cable runs benefit from the module’s 3-wire RTD compensation.
        Description
        The YOKOGAWA AAR181-S53 S2 provides reliable and accurate temperature monitoring for critical industrial processes. Specifically engineered for Pt100 (3-wire) RTD sensors, this module delivers 12 isolated input channels, ensuring signal integrity and protecting your control system from electrical noise and ground loops commonly found in harsh plant environments.

        Designed for seamless integration into Yokogawa's FIO (Field network I/O) architecture, the YOKOGAWA AAR181-S53 S2 mounts directly into ESB or ER bus node units. Its isolated design (1500V AC) guarantees stable operation even in electrically noisy environments, while the compact form factor allows for high-density installation, saving valuable cabinet space.

        Whether used in petrochemical refining, power generation, or pharmaceutical manufacturing, the YOKOGAWA AAR181-S53 S2 ensures your temperature data remains accurate and drift-free. It supports both single and dual-redundant configurations with dedicated terminal blocks (ATR8S/ATR8D), maximizing system uptime for critical control loops.
        Alternative Names
        AAR181S53S2 AARI8I-S53 S2 AAR181-S50 S2 AAR145-S50 S1 AAR145-S03 S1 AAT141-S03 S2 AAT145-S53 S1 AAI543-S53 S1
        Technical notes
        The YOKOGAWA AAR181-S53 S2 is strictly an RTD input module (Pt100); it does not include analog output functionality, distinguishing it from mixed I/O modules like the AAI841. For optimal performance, the YOKOGAWA AAR181-S53 S2 must be installed with the specified pressure clamp terminal (ATR8S) or redundant terminal (ATR8D); adjacent slots should be left empty when installing near non-compatible I/O modules like digital cards.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        In what system architecture can I install the YOKOGAWA AAR181-S53 S2?
        The YOKOGAWA AAR181-S53 S2 is designed for the FIO (Field network I/O) system. It installs directly into Node Units (ANB10/ANB11) connected to ESB or Optical ESB buses, as well as ER Bus Node Units (ANR10), working seamlessly with AFV30, AFV40, or AFV10 Field Control Units.
        What happens if the cold junction temperature changes around the YOKOGAWA AAR181-S53 S2?
        Unlike thermocouple modules, the YOKOGAWA AAR181-S53 S2 measures RTD resistance. It is unaffected by cold junction variations. However, to maintain reference accuracy for the terminal block, avoid installing heat-radiating units directly beneath the module or exposing it to direct airflow from cabinet fans.
        Does the YOKOGAWA AAR181-S53 S2 support hot-swapping?
        Yes, like standard FIO modules, the YOKOGAWA AAR181-S53 S2 supports online module replacement (hot-swap) in redundant configurations. This allows you to replace a faulty module without shutting down the control system or interrupting the process.
        How does the YOKOGAWA AAR181-S53 S2 handle sensor wire breaks?
        The YOKOGAWA AAR181-S53 S2 includes built-in diagnostic features that detect sensor burnout or wire breaks (burnout detection). If an RTD sensor fails or a wire disconnects, the module will report a diagnostic alarm to the CENTUM VP system for immediate operator notification.

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