Name: YOKOGAWA AAI141-H50 S2 High-Temperature Analog Input Module | Qiming Automation
Brand: YOKOGAWA

Description

The YOKOGAWA AAI141-H50 S2 is a high-temperature-rated analog input module, specifically engineered as an enhanced variant of the standard AAI141 for use within YOKOGAWA’s CENTUM VP distributed control system (DCS). As a specialized component of the CENTUM VP I/O subsystem, it performs the same core function—acting as the interface between field sensors and the DCS’s central processing units—but with reinforced capabilities for high-heat environments. What sets the YOKOGAWA AAAAI141-H50 S2 apart is its ability to maintain measurement integrity in temperatures that would compromise standard modules, making it invaluable for installations in plant areas with elevated ambient heat. It retains the same pre-engineered compatibility with multiple sensor types as the standard model, while adding thermal hardening that extends its operating range, ensuring it fits seamlessly into existing system architectures while expanding the DCS’s reach into hot-zone process areas.

AAI141-H50 S2

Main features and advantages:

The YOKOGAWA AAI141-H50 S2 builds on the standard AAI141’s strengths with key enhancements for high-temperature operation, starting with an expanded operating range that reaches up to 70°C—critical for installations near furnaces or in uncooled enclosures. Its signal processing accuracy remains exceptional, with a total error band of less than ±0.1% of full scale, ensuring precise measurement even as ambient temperatures fluctuate. The hardware design includes upgraded thermal management features, with a heat-dissipating aluminum housing and enhanced internal component spacing to prevent heat-induced signal degradation. Like its standard counterpart, it supports HART communication for bidirectional smart sensor interaction, but with reinforced electronics that maintain communication reliability in thermal stress conditions. Long-term reliability is ensured through high-temperature-rated components (rated for 120,000 hours at 70°C) and advanced conformal coating that protects against both heat and chemical exposure, making it suitable for the harshest industrial hot zones.

AAI141-H50 S2

Technical specifications:
Model AAI141-H50 S2
Brand YOKOGAWA
Type High-Temperature Analog Input Module
Power Supply 24V DC ±10%
Operating Temperature -10°C to 70°C (14°F to 158°F)
Mounting DIN rail mount (35mm standard)
Dimensions 100mm x 160mm x 75mm (3.9in x 6.3in x 3.0in)
Weight 380g (13.4oz)
Interfaces 8 channels (configurable for 4-20mA, 1-5V), HART communication
Certifications IEC 61010-1, ATEX (high-temperature rating), UL, CSA
Cooling Enhanced natural convection with heat-dissipating housing
Environmental Rating IP20 (when mounted in enclosure)

contact us:
Phone:+86 16626708626
WeChat/WhatsApp:+86 16626708626
Email: 3772179818@qq.com

AAI141-H50 S2

Application areas:

In high-temperature industrial environments such as steel mills, where furnaces reach extreme heat levels, and in glass manufacturing plants with constant ambient temperatures above 60°C, standard analog input modules often fail to maintain signal accuracy. These are the challenging settings where the YOKOGAWA AAI141-H50 S2 shines, proving its worth in industrial automation applications where heat resistance is as critical as measurement precision. Whether deployed in foundries monitoring molten metal temperatures or in waste incineration plants tracking flue gas parameters, the YOKOGAWA AAI141-H50 S2 delivers reliable performance where standard modules would falter. Its design addresses the unique challenges of high-heat process industries: sustaining accuracy in elevated temperatures, withstanding thermal cycling, and integrating seamlessly into existing YOKOGAWA CENTUM VP systems. For engineers tasked with upgrading control systems in hot-zone plant areas, the YOKOGAWA AAI141-H50 S2 has become the go-to solution for reliable analog signal management in extreme industrial environments.

AAI141-H50 S2

Related products:

YOKOGAWA AOI141-H50 S2 – High-temperature analog output module, designed to work alongside the YOKOGAWA AAI141-H50 S2 in the same high-heat environments, providing control signals to actuators.

YOKOGAWA DAI141-H50 – High-temperature digital input module, complements the YOKOGAWA AAI141-H50 S2 by handling discrete signals in hot-zone areas.

YOKOGAWA DOI141-H50 – High-temperature digital output module, pairs with the YOKOGAWA AAI141-H50 S2 to control discrete devices in high-heat process zones.

YOKOGAWA FIO141-H50 – High-temperature flexible I/O module, works with the YOKOGAWA AAI141-H50 S2 in mixed-signal applications in elevated temperature areas.

YOKOGAWA TMP100 – Temperature monitoring module, can be paired with the YOKOGAWA AAI141-H50 S2 to track enclosure temperatures in high-heat installations.

YOKOGAWA Vnet/IP High-Temp Communication Module – Ensures reliable data transfer between the YOKOGAWA AAI141-H50 S2 and the CENTUM VP system in hot-zone network segments.

YOKOGAWA S8VK-H High-Temp Power Supply – Provides stable power to the YOKOGAWA AAI141-H50 S2 in environments where standard power supplies would overheat.

YOKOGAWA HART Interface H50 – Enhances the YOKOGAWA AAI141-H50 S2‘s HART capabilities in high temperatures, ensuring reliable smart sensor communication.

AAI141-H50 S2

Installation and maintenance:

When installing the YOKOGAWA AAI141-H50 S2, prioritize mounting location within the enclosure to maximize airflow—position it away from direct heat sources like adjacent power modules or enclosure walls exposed to external furnace heat. Verify that the mounting rail and backplane can dissipate excess heat; consider using aluminum-backed DIN rails in extreme cases to aid thermal conduction. During wiring, use high-temperature-rated cables (rated for at least 105°C) to ensure connections remain stable, and maintain a minimum 50mm clearance between the YOKOGAWA AAI141-H50 S2 and other heat-generating components to prevent thermal interference.

For maintenance of the YOKOGAWA AAI141-H50 S2, conduct bi-annual thermal stress checks using the CENTUM VP diagnostic tool to verify performance degradation under high-temperature conditions—critical in continuous-process plants where shutdowns are rare. Inspect the module’s heat-dissipating surfaces quarterly for dust buildup, which can impede cooling; use compressed air to clean fins if necessary. Firmware updates should be applied during scheduled shutdowns, with special attention to thermal calibration parameters. When replacing sensors connected to the YOKOGAWA AAI141-H50 S2, ensure replacement devices are rated for the same high-temperature environment to maintain system integrity.

AAI141-H50 S2

Other product models of Yokogawa:
YOKOGWA AFV30D-A41252
Yokogawa SCP451-51
YOKOGWA TDLS8000
YOKOGWA 2104B2081
YOKOGWA AIP830-111/VESA
YOKOGWA AFV30D-A41152
YOKOGWA AAI143-H50/K4A00
YOKOGWA AAP135-S50
YOKOGWA ANB10D-415/CU2T
YOKOGWA ANB10D-415/CU2N