AAI135-S50 Yokogawa Analog Input Modules
Need More Details?
If you’d like to check stock availability, request the latest price, or view more product images, simply click the "Request for Price" button and our team will assist you promptly.

Yokogawa AAI135‑S50 Analog Input Module
The Yokogawa AAI135‑S50 is a high‑precision analog input module engineered for reliable signal acquisition in industrial automation and process control systems. As part of Yokogawa’s line of control‑system modules, this input module supports a variety of analog sensors — such as temperature, pressure, flow, and level transmitters — delivering accurate signal conversion and digital data output for use in distributed control systems (DCS), PLC systems, or process monitoring setups.
Key Features:
-
High‑accuracy analog signal acquisition from sensors (e.g., 4–20 mA transmitters, voltage output sensors, thermocouples, RTDs — depending on configuration).
-
Stable and noise‑resistant signal processing for dependable measurement integrity in industrial environments.
-
Modular, rack‑mount or DIN‑rail friendly design enabling easy installation, maintenance, and expansion.
-
Compatibility with Yokogawa DCS and other industrial control systems for seamless integration into existing automation architectures.
-
Built‑in diagnostics or fault detection (depending on configuration) to support preventive maintenance and system reliability.
Specifications:
-
Model / Part Number: AAI135‑S50
-
Module Type: Analog Input Module
-
Supported Signal Types: Current input (e.g., 4–20 mA), voltage input (e.g., 0–10 V), and possibly thermocouple/RTD inputs depending on variant — check datasheet for exact configuration.
-
Input Channels: Multi‑channel analog inputs (refer to manufacturer documentation for number of channels supported)
-
Accuracy: High-precision A/D conversion suitable for critical process parameters
-
Mounting: Rack- or DIN‑rail‑mountable module suitable for control panels and DCS racks
-
Integration: Designed for compatibility with Yokogawa DCS and standard industrial automation control systems
The Yokogawa AAI135‑S50 analog input module offers a reliable, flexible, and precise solution for analog signal acquisition in industrial process control applications. For procurement, configuration support, or integration assistance, please contact Ram Automations at info@ramautomations.com.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.