Introduction

The AAI135-H50 Analog Input Module provides reliable, high-accuracy analog signal conversion for Yokogawa process control systems. Its robust industrial design, versatile input support, and compact modular form make it ideal for demanding environments. The module ensures consistent and precise data acquisition, supporting process optimization, predictive maintenance, and operational efficiency.

Technical Specifications

Parameter	Details
Model	AAI135-H50
Type	Analog Input Module
Dimensions	107.5 × 32.8 × 130 mm
Weight	0.3 kg
Input Types	4–20 mA, 0–10 V, thermocouples (selectable)
Resolution	16-bit
Isolation	Galvanic isolation per channel
Response Time	~50 ms per channel
Operating Temperature	-10°C to 60°C
Compatibility	Yokogawa DCS and PLC systems
Mounting	Rack or DIN rail

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Popular Related Models

Model	Description
AAI130	Standard analog input module
AAI131	4-channel analog input module
AAI132	Voltage input module
AAI133	Thermocouple input module
AAI134	High-speed input module
AAI135	Universal analog input module
AAI136	Multi-channel module with diagnostics
AAI137	Process input module with isolation
AAI140	Isolated analog input module
AAI150	Redundant analog input module

Applications

The Yokogawa AAI135-H50 Analog Input Module is tailored for precise signal acquisition in industrial automation and process control systems. It converts analog signals from sensors such as temperature, pressure, flow, and level into accurate digital data for monitoring, control, and data logging. It is widely used in chemical plants, oil & gas facilities, power generation, and water treatment plants where reliable process measurements are critical.

Advantages

High-precision analog-to-digital conversion ensures reliable measurements for process control
Supports multiple signal types, including 4–20 mA, 0–10 V, and selected thermocouples
Compact, modular design optimizes control cabinet space
Industrial-grade construction resistant to vibration, electrical noise, and temperature variations
Seamless integration with Yokogawa DCS and PLC systems for smooth operation

FAQs

Which analog signal types are compatible with this module?
4–20 mA, 0–10 V, and select thermocouples.
What is the input resolution?
16-bit resolution for precise signal capture.
Can it handle multiple channels simultaneously?
Yes, multiple channels can be processed concurrently.
What is the typical response time per channel?
Around 50 milliseconds per channel.
Is galvanic isolation provided for the inputs?
Yes, each channel is galvanically isolated to prevent ground loops.
What is the operating temperature range?
-10°C to 60°C.
Is it compatible with Yokogawa DCS systems?
Fully compatible with Centum VP, Centum CS, and other Yokogawa automation systems.
Does it support sensor diagnostics?
Yes, it detects open or short circuits on connected sensors.
Can this module be hot-swapped?
Yes, hot-swap functionality is supported to reduce downtime.
What wiring practices are recommended for best signal integrity?
Use shielded twisted-pair cables and maintain proper grounding for all analog signals.