YOKOGAWA LR 4220E Control System – Precision Engineered for Industrial Automation Excellence
As certified partners of Yokogawa, Hong Kong Saul Electric Co., Ltd. specializes in supplying mission-critical automation components with 15+ years of technical expertise. We maintain Asia’s largest inventory of specialized industrial control systems, including hard-to-find and obsolete models.
Core Functionality
The Yokogawa LR 4220E represents the pinnacle of process control technology, engineered for precision regulation in critical manufacturing applications. This advanced controller delivers:
| Parameter | Specification |
|---|---|
| Control Algorithms | 8 programmable control functions with adaptive PID tuning |
| Communication Protocols | Ethernet (Modbus/TCP), RS-485 (Modbus/RTU), PROFIBUS-DP, DeviceNet |
| Display Interface | 14-segment color LCD with multi-language support |
| Physical Dimensions | 65mm depth compact chassis design |

Industrial Applications
- Continuous process manufacturing systems
- Safety Instrumented Systems (SIS) integration
- Turbine control and vibration monitoring
- DCS/PLC redundancy configurations
Our Service Commitment
All LR 4220E units include:
- 12-month comprehensive warranty
- Pre-shipment functional testing certification
- Technical support via WhatsApp direct line
- Global shipping with real-time tracking
Need specific configuration? Contact our engineers for custom solutions.





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