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AAR145-S50 S1

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The YOKOGAWA AAR145-S50 S1 is a 16-channel, fully isolated RTD/POT input module for CENTUM VP, enabling direct connection of Pt100 sensors and 0-10 kΩ potentiometers.
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Technical specifications for AAR145-S50 S1

  • Manufacturer:
    Yokogawa
  • Part Number:
    AAR145-S50 S1
  • Product Family:
    Centum CS-Centum VP
  • Product Type:
    RTD/POT Input Module
  • Current Consumption (5V DC):
    350 mA (Max)
  • Signal Connection:
    Dedicated KS Cable (AKB335) directly to AER4D terminal board
  • Redundancy Support:
    Yes (Dual-redundant configurable)
  • Ambient Temp (Normal):
    0 to 60 °C
  • Ambient Temp (Option):
    -20 to 70 °C (G3/temp support option)
  • Explosion Protection:
    CSA NI, FM NI, Type n, Type i (Intrinsic Safety), FM Intrinsic Safety
  • Power Supply Factor:
    0 (Zero load on node power calculation)
  • Compatibility:
    AFV10/30/40, ANB10/11, ANR10 node units
  • Weight:
    0.26 kg
  • Estimated shipping dimensions:
    3.2x12.5x13cm
  • 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 Applications Monitoring & Control Safety & Compliance

Features:

  • 16 Fully Isolated Channels for Signal Integrity
  • Flexible Signal Input (RTD & POT) on a Single Module
  • Optimized for High-Density Installation
The YOKOGAWA AAR145-S50 S1 provides 16 independent isolated input channels, effectively eliminating electrical crosstalk and ground loop interference. This feature is essential for applications requiring high precision, such as multi-point reactor temperature monitoring, where signal corruption can lead to faulty process control.

Simplify your spare parts inventory with the YOKOGAWA AAR145-S50 S1. It accepts both Pt100 RTD (3-wire) and 0-10 kΩ potentiometer signals, allowing you to mix temperature sensors and valve position indicators on the same I/O card without additional converters.

With a zero power supply factor and 350 mA current consumption (5V DC), the YOKOGAWA AAR145-S50 S1 allows maximum module population per node without exceeding power limits. The direct KS cable connection (AKB335) reduces wiring clutter and installation time compared to traditional pressure clamp terminals, making large system expansions more manageable.

The AAR145-S50 S1 YOKOGAWA RTD/POT Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
YOKOGAWA AAR145-S50 S1 RTD/POT 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 AAR145-S50 S1 RTD/POT Input Module

General

  • Manufacturer YOKOGAWA
  • Model AAR145-S50 S1
  • Condition New Original ready stock
  • Product Family AAR145-S03 S1,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.
  • Power Generation: Monitoring bearing temperatures (Pt100) on turbines and generators within the YOKOGAWA AAR145-S50 S1 installation, ensuring safe operation under extreme vibration and heat.
  • Oil & Gas: Reading valve position feedback (Potentiometer) for emergency shutdown (ESD) systems, where the isolated channels of the YOKOGAWA AAR145-S50 S1 protect against hazardous area surges.
  • Pharmaceuticals: Precision temperature control in bioreactors using the YOKOGAWA AAR145-S50 S1, meeting GAMP standards with its intrinsic safety (Type i) compliance.
  • Metal Processing: Monitoring furnace temperatures with Pt100 sensors, leveraging the YOKOGAWA AAR145-S50 S1’s wide ambient temperature tolerance (-20 to 70°C) for harsh environments.
  • Real-Time Position Control: The YOKOGAWA AAR145-S50 S1 reads 0-10 kΩ potentiometer signals to provide precise feedback for modulating control valves, allowing PID loops to adjust flow or pressure seamlessly.
  • High-Density Temperature Scans: Monitor up to 16 separate Pt100 points simultaneously with the YOKOGAWA AAR145-S50 S1 without external multiplexers, reducing scan times for critical thermal runaway protection.
  • Redundant Input Architecture: Deploy two YOKOGAWA AAR145-S50 S1 modules in a dual-redundant pair to ensure bumpless transfer if one module fails, guaranteeing uptime for continuous processes like refining.
  • Direct System Integration: The YOKOGAWA AAR145-S50 S1 plugs directly into ANB10/11 node units, appearing natively in CENTUM VP’s engineering database for drag-and-drop configuration and online diagnostics.
  • Hazardous Area Ready: The YOKOGAWA AAR145-S50 S1 holds multiple certifications including CSA/FM Non-Incendive and Intrinsic Safety (Type i), allowing direct installation in Zone 2/Class I, Division 2 areas.
  • Robust Isolation: Channel-to-channel isolation prevents high-voltage transients from damaging the YOKOGAWA AAR145-S50 S1 or the central control system, ensuring personnel safety and equipment longevity.
  • Environmental Resistance: With optional G3 and temperature extension, the YOKOGAWA AAR145-S50 S1 resists corrosion from hydrogen sulfide or sulfur dioxide, common in wastewater treatment or chemical plants.
  • CE & RCM Marked: The module complies with international EMC and safety standards (CE, RCM, KC), facilitating global machine exports without requiring re-certification for the YOKOGAWA AAR145-S50 S1.
Description
The YOKOGAWA AAR145-S50 S1 is a high-density, 16-channel isolated RTD/POT input module designed for Yokogawa's CENTUM VP and ProSafe-RS distributed control systems. This module directly connects Pt100 RTD sensors or potentiometers, making it an ideal solution for precise temperature monitoring and valve position feedback in critical industrial processes.

Engineered for extreme environments, the YOKOGAWA AAR145-S50 S1 supports dual-redundant configurations and offers a wide operating temperature range (-20 to 70°C with option). Unlike standard modules, it utilizes a direct KS cable connection (AKB335) to the AER4D terminal board, simplifying wiring for high-channel-count applications and reducing installation costs in large-scale automation projects.

The YOKOGAWA AAR145-S50 S1 features fully isolated channels to eliminate cross-talk and ground loop errors, ensuring signal integrity in electrically noisy environments such as power plants or steel mills. With zero power supply factor loading on the node, this module allows for dense packing without straining the system’s power budget, maximizing I/O capacity within a single node unit.
Alternative Names
AAR145S50S1 AARI45-S50 SI AAR145-S5O S1 AAR145-S03 S1 AAT141-S03 S2 AAT145-S53 S1 AAR181-S53 S2 AAI543-S53 S1
Technical notes
The YOKOGAWA AAR145-S50 S1 does not support pressure clamp terminals; it requires a dedicated KS cable (AKB335) connected to an AER4D terminal board for field wiring, ensuring reliable high-density signal termination.
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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.
Which types of sensors can be directly connected to the YOKOGAWA AAR145-S50 S1 without an external signal conditioner?
The YOKOGAWA AAR145-S50 S1 natively supports 3-wire Pt100 RTD sensors for temperature measurement and 0-10 kΩ potentiometers for position or level feedback. You can mix these two sensor types across the 16 isolated channels on a single module.
The Yokogawa AAR145-S50 S1 doesn't have a pressure clamp terminal. How should I wire it?
Unlike standard I/O cards, the YOKOGAWA AAR145-S50 S1 is optimized for high-density installations using a dedicated KS cable (model AKB335). You connect this cable directly from the module to an AER4D terminal board, where field wires are terminated. This reduces wiring errors and improves signal integrity for RTD measurements.
Can the YOKOGAWA AAR145-S50 S1 be used in a safety instrumented system (SIS) or only for basic process control?
Yes. The YOKOGAWA AAR145-S50 S1 is compatible with the ProSafe-RS safety system and supports dual-redundant configurations. With its FM/CSA Intrinsic Safety (Type i) approvals, it is suitable for demanding SIS applications in petrochemical emergency shutdown (ESD) systems.
How does the YOKOGAWA AAR145-S50 S1 perform in extreme temperatures, such as outdoor skid-mounted installations?
The YOKOGAWA AAR145-S50 S1 has a standard operating range of 0 to 60°C. However, if you select the temperature environment support option (referenced in GS as "-20 to 70°C optional"), the YOKOGAWA AAR145-S50 S1 can reliably operate in freezing outdoor conditions or near hot machinery without additional climate control.

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