Yokogawa EC402-51 Product Introduction

The Yokogawa EC402-51 is a high-performance electrochemical analyzer designed for precise measurement and control of pH, ORP (Oxidation-Reduction Potential), and conductivity in industrial processes. It is widely used in water treatment, chemical processing, pharmaceuticals, and food & beverage industries. The EC402-51 features advanced diagnostics, robust construction, and user-friendly operation, making it a reliable choice for critical applications.

The analyzer is equipped with a large, easy-to-read LCD display and supports multiple communication protocols, including 4-20 mA output, HART, and Modbus. Its modular design allows for flexible configurations to meet specific process requirements.

Product Advantages

1. High Accuracy and Stability: The EC402-51 delivers precise measurements with minimal drift, ensuring long-term reliability.
2. Advanced Diagnostics: Built-in self-diagnostics and alarm functions reduce maintenance time and improve operational efficiency.
3. Durable Construction: Designed to withstand harsh industrial environments, including high temperatures and corrosive conditions.
4. User-Friendly Interface: Intuitive menu navigation and a clear display simplify operation and setup.
5. Flexible Communication Options: Supports multiple communication protocols for seamless integration into control systems.
6. Low Maintenance: Features like automatic calibration and cleaning reduce the need for manual intervention.

Technical Parameters

Applications

The EC402-51 is suitable for a wide range of applications, including:

• Water Treatment: Monitoring pH and conductivity in purification systems.
• Chemical Processing: Precise control of reaction processes.
• Pharmaceuticals: Ensuring compliance with strict quality standards.
• Food & Beverage: Maintaining optimal conditions for production.
• Power Plants: Monitoring water quality in boilers and cooling systems.

Compatible Models for Integration

The EC402-51 can be paired with the following Yokogawa sensors and accessories:

• Sensors: PH8E, SC8E, OR8E
• Transmitters: EXAxt450, EXAxt400
• Accessories: YTA110 temperature transmitter, YFGW410 field wireless converter

Installation Instructions

1. Mounting: Secure the analyzer on a DIN rail or panel using the provided brackets.
2. Wiring: Connect power and signal cables according to the wiring diagram in the manual.
3. Sensor Connection: Attach the compatible sensor to the designated input terminals.
4. Calibration: Perform initial calibration using standard solutions for accurate measurements.
5. Testing: Verify functionality by simulating process conditions.

Ensure the installation environment is free from excessive vibration, dust, and moisture to prolong the device’s lifespan.

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FAQ (Q&A)

Q1: What is the lifespan of the EC402-51?
A1: With proper maintenance, the EC402-51 can operate reliably for 5-10 years, depending on the environment.

Q2: Can the EC402-51 be used in hazardous areas?
A2: Yes, it is available with ATEX and IECEx certifications for hazardous area installation.

Q3: How often should calibration be performed?
A3: Calibration frequency depends on usage, but typically every 1-3 months is recommended for critical applications.

Q4: Is the EC402-51 compatible with third-party sensors?
A4: No, it is optimized for Yokogawa sensors to ensure accuracy and reliability.

Q5: What is the warranty period for this product?
A5: Yokogawa offers a standard 2-year warranty for the EC402-51.

Q6: Can the EC402-51 be integrated with SCADA systems?
A6: Yes, it supports Modbus and HART protocols for seamless SCADA integration.