Yokogawa ASI133 Product Documentation

Product Introduction

The Yokogawa ASI133 is a high-performance analog signal isolator designed for industrial automation and process control applications. It provides reliable isolation, signal conversion, and noise suppression for various analog signals, ensuring accurate and stable data transmission in harsh environments.

The ASI133 is part of Yokogawa’s extensive lineup of signal conditioners and isolators, known for their durability, precision, and compatibility with a wide range of industrial systems.

Product Advantages

1. High Accuracy – Provides precise signal conversion with minimal drift over time.
2. Robust Isolation – Offers galvanic isolation to protect sensitive equipment from electrical noise and ground loops.
3. Wide Compatibility – Supports various input/output signal types, including 4-20mA, 0-10V, and thermocouple signals.
4. Durable Construction – Designed for industrial environments with high resistance to vibrations and temperature fluctuations.
5. Easy Installation – Compact DIN rail mounting design simplifies integration into control panels.
6. Low Power Consumption – Energy-efficient operation reduces overall system power requirements.

Technical Specifications

Applications

• Process Control Systems – Used in chemical, oil & gas, and power plants for signal conditioning.
• Factory Automation – Integrates with PLCs and DCS systems for reliable signal transmission.
• HVAC Systems – Ensures accurate temperature and pressure signal processing.
• Water Treatment – Monitors and controls flow, pH, and other critical parameters.
• Renewable Energy – Supports signal isolation in solar and wind power systems.

Compatible Models

The ASI133 can be used alongside the following Yokogawa products:

• Yokogawa AXF Series (Flowmeters)
• Yokogawa EJX Series (Pressure Transmitters)
• Yokogawa UTAdvanced (Temperature Transmitters)
• Yokogawa DPharp Series (Differential Pressure Transmitters)
• Yokogawa CENTUM VP (DCS Systems)

Installation Instructions

1. Mounting – Secure the ASI133 onto a DIN rail (35mm standard) in a control panel.
2. Wiring – Connect input, output, and power supply terminals as per the wiring diagram.
3. Grounding – Ensure proper grounding to minimize electrical noise interference.
4. Power-Up – Verify voltage compatibility before applying power.
5. Calibration – Perform initial calibration using a standard signal source if required.
6. Testing – Check signal integrity using a multimeter or process calibrator.

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Frequently Asked Questions (FAQ)

Q1: What is the maximum operating temperature for the ASI133?
A1: The ASI133 can operate in temperatures ranging from -20°C to +60°C.

Q2: Can the ASI133 handle thermocouple inputs?
A2: Yes, it supports various thermocouple types (K, J, etc.) with appropriate configuration.

Q3: Is the ASI133 suitable for hazardous areas?
A3: The standard model is not intrinsically safe. For hazardous locations, consult Yokogawa for Ex-rated versions.

Q4: What is the typical response time of the ASI133?
A4: The response time is ≤ 250ms, ensuring real-time signal processing.

Q5: Can the ASI133 be powered by AC voltage?
A5: No, it requires a 24V DC power supply (18-32V DC range).

Q6: How do I calibrate the ASI133?
A6: Use a precision signal source to adjust zero and span via internal potentiometers (if available) or software configuration.