Introduction

The Yokogawa AAI135 Analog Input Module is a reliable solution for converting analog field signals into high-accuracy digital data for process monitoring and control. Its versatile input support, compact design, and industrial-grade reliability make it ideal for complex process automation systems. It ensures continuous, accurate data acquisition, supporting predictive maintenance and optimal process efficiency.

Technical Specifications

Parameter	Details
Model	AAI135
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

Recommended Related Models

Model	Description
AAI131	Analog input module, 4-channel version
AAI132	Analog input module for voltage signals
AAI133	Thermocouple input module
AAI134	High-speed analog input module
AAI136	Multi-channel input module with diagnostics
AAI140	Isolated analog input module
AAI150	Redundant analog input module
AAI155	Compact analog input module
AAI160	Process signal conditioning module
AAI170	Universal analog input module

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 Analog Input Module is used in industrial automation and process control systems to convert field analog signals into digital data for monitoring, control, and data acquisition. It is ideal for chemical plants, refineries, power stations, and water treatment facilities, supporting a variety of sensors including temperature, pressure, flow, and level transmitters. This module ensures accurate signal acquisition for precise process control.

Advantages

High-accuracy analog signal conversion ensures precise measurement for critical processes
Supports multiple signal types, including 4–20 mA, 0–10 V, and thermocouple inputs
Compact design for efficient installation in control cabinets
Robust industrial construction, resistant to vibration and electrical noise
Seamless integration with Yokogawa DCS and PLC systems

FAQs

What types of analog signals are supported?
4–20 mA, 0–10 V, and select thermocouple inputs depending on configuration.
What is the input resolution of the module?
Up to 16-bit resolution for precise signal representation.
Can it handle multiple channels simultaneously?
Yes, it supports multiple input channels for distributed sensing.
What is the typical response time?
Approximately 50 ms per channel, suitable for most process control applications.
Does the module provide isolation?
Yes, galvanic isolation is included to prevent ground loops and electrical interference.
What is the operating temperature range?
-10°C to 60°C for standard industrial operation.
Is it compatible with Yokogawa DCS systems?
Fully compatible with Centum VP, Centum CS, and other Yokogawa control systems.
Does it support sensor diagnostics?
Yes, the module can detect open/short circuits and sensor faults.
Can it be hot-swapped in the control system?
Yes, it supports hot-swap functionality to minimize downtime.
What is the recommended wiring practice?
Use shielded twisted-pair cables for 4–20 mA signals to reduce noise.