Yokogawa CP451-11 Product Introduction

The Yokogawa CP451-11 is a high-performance signal conditioner designed for industrial automation and process control applications. It provides reliable signal conversion, isolation, and transmission for various analog and digital signals, ensuring accurate and stable data acquisition in harsh environments.

This product is widely used in industries such as oil & gas, chemical, power generation, and water treatment, where signal integrity and noise immunity are critical. The CP451-11 is part of Yokogawa’s extensive lineup of signal conditioners, known for their durability and precision.

Product Advantages

1. High Accuracy: Ensures precise signal conversion with minimal error.
2. Isolation: Provides galvanic isolation to protect against ground loops and noise interference.
3. Wide Compatibility: Supports multiple input/output signal types, including 4-20mA, 0-10V, and thermocouple inputs.
4. Robust Design: Built to withstand industrial environments with high EMI resistance and wide operating temperature ranges.
5. Easy Installation: Features a compact design with DIN rail mounting for quick setup.
6. Reliability: Long-term stability and low maintenance requirements.

Technical Specifications

Applications

The CP451-11 is suitable for:

• Process control systems in chemical plants.
• Monitoring and control in power generation facilities.
• Signal conditioning in oil & gas pipelines.
• Water and wastewater treatment automation.
• HVAC systems for building management.

Compatible/Related Models

The CP451-11 can be used alongside the following Yokogawa products:

1. Yokogawa CP451-10: Similar functionality with different I/O configurations.
2. Yokogawa CP451-20: Enhanced isolation and higher accuracy variant.
3. Yokogawa CP451-30: Supports additional communication protocols.
4. Yokogawa CP451-40: Dual-channel signal conditioner.
5. Yokogawa CP451-50: High-density version for space-constrained installations.
6. Yokogawa CP451-60: Advanced diagnostics and alarm features.

Recommended Popular Yokogawa Models

Installation Instructions

1. Mounting: Secure the CP451-11 on a standard 35mm DIN rail using the built-in clips.
2. Wiring: Connect input/output signals and power supply as per the terminal diagram. Ensure proper grounding.
3. Configuration: Set DIP switches or jumpers for desired signal type and range.
4. Testing: Verify signal accuracy using a calibrated multimeter or process calibrator.
5. Enclosure: Install in a protective enclosure if exposed to dust or moisture.

FAQ (Frequently Asked Questions)

Q1: What is the maximum load resistance for the 4-20mA output?
A1: The maximum load resistance is 500Ω for the CP451-11.

Q2: Can the CP451-11 handle high-frequency noise environments?
A2: Yes, it features high EMI resistance and isolation to mitigate noise interference.

Q3: Is the CP451-11 compatible with RTD inputs?
A3: No, the CP451-11 supports thermocouple and standard analog inputs but not RTD. For RTD, consider the CA300 model.

Q4: What is the typical lifespan of the CP451-11?
A4: With proper usage, the CP451-11 can operate reliably for over 10 years.

Q5: Can multiple CP451-11 units be daisy-chained?
A5: No, each unit requires individual power and signal connections.

Q6: Does the CP451-11 require calibration?
A6: Periodic calibration is recommended (annually or as per industry standards) to maintain accuracy.