Yokogawa AAI835-H50 Product Overview

The Yokogawa AAI835-H50 is a high-performance analog input module designed for industrial automation and process control applications. It is part of Yokogawa’s extensive lineup of signal conditioners and I/O modules, known for their reliability, precision, and durability in harsh environments.

This module is widely used in industries such as oil & gas, chemical, power generation, and water treatment, where accurate signal conversion and isolation are critical.

Product Advantages

1. High Accuracy & Stability – The AAI835-H50 ensures precise signal conversion with minimal drift over time, making it ideal for critical measurement applications.
2. Robust Isolation – Provides strong electrical isolation between input and output, protecting sensitive equipment from noise and voltage spikes.
3. Wide Input Range – Supports various analog input signals, including voltage and current, enhancing flexibility in different industrial setups.
4. Durable Construction – Built to withstand harsh industrial environments with high resistance to electromagnetic interference (EMI) and vibrations.
5. Easy Integration – Compatible with Yokogawa’s control systems and other industry-standard automation platforms.
6. Compliance & Certifications – Meets international standards for safety and performance, ensuring reliability in regulated industries.

Technical Specifications

Applications

The AAI835-H50 is widely used in:

• Process Control Systems – For monitoring and controlling industrial processes.
• Power Plants – Signal conditioning for sensors and transmitters.
• Oil & Gas – Reliable signal transmission in hazardous areas.
• Water & Wastewater – Monitoring flow, pressure, and level signals.
• Manufacturing Automation – Integration into PLC and DCS systems.

Compatible & Recommended Accessories

To ensure seamless operation, the AAI835-H50 can be paired with:

• Yokogawa SPS11 – Power supply unit for stable voltage input.
• Yokogawa XS901 – DIN rail mounting kit for secure installation.
• Yokogawa CABLE-01 – Shielded connection cables for noise reduction.

Installation Instructions

1. Mounting – Secure the module on a DIN rail using the provided clips.
2. Wiring – Connect input signals and power supply according to the terminal diagram.
3. Grounding – Ensure proper grounding to minimize electrical noise.
4. Configuration – Adjust input range and settings via DIP switches if applicable.
5. Testing – Verify signal accuracy using a calibrated multimeter before full operation.

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Frequently Asked Questions (FAQ)

Q1: What is the maximum input voltage for the AAI835-H50?
A1: The module supports up to 10V DC input by default, but higher ranges may require external attenuation.

Q2: Can the AAI835-H50 be used in hazardous areas?
A2: Yes, it complies with intrinsic safety standards when used with appropriate barriers.

Q3: How do I calibrate the module?
A3: Calibration requires a precision signal source and adjustment via internal potentiometers (if available) or software tools.

Q4: Is the module compatible with third-party PLCs?
A4: Yes, it works with standard 4-20mA or 0-10V interfaces, making it compatible with most PLCs.

Q5: What is the typical lifespan of the AAI835-H50?
A5: With proper usage, the module can operate reliably for over 10 years.

Q6: Does Yokogawa provide technical support for this product?
A6: Yes, Yokogawa offers global technical support and documentation for troubleshooting and maintenance.