Name: YOKOGAWA AAI141 Analog Input Module | Qiming Automation
Brand: YOKOGAWA
Price: 49437.00 CNY
Availability: InStock

Description

The YOKOGAWA AAI141 is an analog input module designed specifically for use within YOKOGAWA’s CENTUM VP distributed control system (DCS), one of the most widely deployed process control platforms in the industry. As a key component of the CENTUM VP I/O subsystem, it acts as the interface between field sensors (such as temperature transmitters, pressure transducers, and flow meters) and the system’s central processing units. Unlike generic analog modules that require extensive configuration to match sensor types, the YOKOGAWA AAI141 comes pre-engineered to handle multiple standard input ranges, reducing setup time and minimizing configuration errors. Its role in the control system architecture is vital: it converts low-level analog signals from field devices into digital data that the DCS can process, while also providing diagnostic information to alert operators of sensor malfunctions or signal drift—critical for maintaining process integrity.

AAI141

Main features and advantages:

The YOKOGAWA AAI141 stands out for its exceptional signal processing accuracy, with a total error band of less than ±0.1% of full scale, ensuring that even minor process variations are captured and transmitted to the DCS. This level of precision is essential in applications like petrochemical distillation, where 0.1% temperature variations can alter product composition. Its hardware design reflects YOKOGAWA’s industrial heritage: a ruggedized enclosure with conformal coating protects against moisture and chemical exposure, making it suitable for installation in harsh plant environments. Compatibility is another strength; it integrates seamlessly with other CENTUM VP modules while supporting HART communication protocol, allowing for bidirectional communication with smart sensors for remote calibration and diagnostics. Long-term reliability is ensured through components rated for 150,000 hours of operation and a wide operating temperature range, ensuring consistent performance in both hot desert refineries and cold climate processing plants.

AAI141

Technical specifications:
Model AAI141
Brand YOKOGAWA
Type Analog Input Module
Power Supply 24V DC ±10%
Operating Temperature -10°C to 60°C (14°F to 140°F)
Mounting DIN rail mount (35mm standard)
Dimensions 100mm x 160mm x 70mm (3.9in x 6.3in x 2.8in)
Weight 350g (12.3oz)
Interfaces 8 channels (configurable for 4-20mA, 1-5V), HART communication
Certifications IEC 61010-1, ATEX, UL, CSA
Cooling Natural convection
Environmental Rating IP20 (when mounted in enclosure)

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

AAI141

Application areas:

In oil refineries where precise control of multiple analog signals can prevent costly process deviations, and in chemical plants managing complex reactor systems with dozens of sensors, reliable signal conversion is the backbone of stable operations. These are the environments where the YOKOGAWA AAI141 proves indispensable, serving as a critical link in industrial automation setups where accuracy and consistency directly impact product quality and safety. Whether deployed in power generation facilities monitoring steam pressure and temperature across turbine systems or in pharmaceutical manufacturing ensuring strict compliance with batch processing parameters, the YOKOGAWA AAI141 excels at translating raw sensor data into actionable signals for control systems. Its design addresses the core challenges of modern process industries: handling multiple input types without signal degradation, maintaining calibration in harsh environments, and integrating seamlessly with existing distributed control systems (DCS). For engineers tasked with upgrading legacy systems or building new process control architectures, the YOKOGAWA AAI141 has become a trusted solution for reliable analog signal management in industrial automation.

AAI141

Related products:

YOKOGAWA AOI141 – Analog output module, works alongside the YOKOGAWA AAI141 to provide control signals to actuators in the same system.

YOKOGAWA DAI141 – Digital input module, complements the YOKOGAWA AAI141 by handling discrete signals from limit switches and status indicators.

YOKOGAWA DOI141 – Digital output module, pairs with the YOKOGAWA AAI141 to control relays, solenoids, and other discrete devices based on processed analog data.

YOKOGAWA FIO141 – Flexible I/O module, can be configured to work with the YOKOGAWA AAI141 in mixed-signal applications requiring both analog and digital processing.

YOKOGAWA SAI141 – Safety analog input module, designed for SIL 2/3 applications, integrates with the YOKOGAWA AAI141 in safety instrumented systems.

YOKOGAWA Vnet/IP Communication Module – Enables data transfer between the YOKOGAWA AAI141 and the CENTUM VP operator stations over the system network.

YOKOGAWA Power Supply Unit S8VK – Provides redundant power to the YOKOGAWA AAI141 and other I/O modules, ensuring uninterrupted operation.

YOKOGAWA HART Communication Interface – Enhances the YOKOGAWA AAI141‘s HART capabilities, enabling advanced sensor configuration and diagnostics.

AAI141

Installation and maintenance:

Before installing the YOKOGAWA AAI141 , ensure the mounting rail is securely fastened to a metal backplane with proper grounding to minimize electromagnetic interference—critical when the module is installed near high-voltage motor drives or variable frequency drives. Verify that the enclosure housing the module has adequate ventilation; while the YOKOGAWA AAI141 uses natural convection cooling, ambient temperatures inside the enclosure should not exceed 60°C to maintain measurement accuracy. During wiring, use twisted-pair cables for all analog inputs to reduce noise pickup, and ensure that sensor wiring is routed separately from power cables to prevent signal interference.

For maintenance of the YOKOGAWAAI141 , schedule quarterly checks using the CENTUM VP maintenance tool to verify input accuracy against a calibrated reference signal—this is especially important in applications with strict regulatory requirements, such as pharmaceutical manufacturing. Inspect terminal connections annually for tightness, as vibration in plant environments can cause gradual loosening over time. Firmware updates for the YOKOGAWA AAI141 are released periodically and should be applied during scheduled shutdowns; these updates often include improved diagnostic features and enhanced compatibility with newer sensor models. When replacing a sensor connected to the module, use the HART communication function to verify the new sensor’s configuration matches the module’s input settings before returning to normal operation.

AAI141

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