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- Yokogawa
- SEA4D-01
- Analog Terminal Board
- Japan
- 482.6 x 88.1 x 85 mm
- 1.5 kg
- Xiamen, China
- New & In Stock
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Yokogawa SEA4D-01 Analog Terminal Board is an industrial-grade field wiring termination module used in Yokogawa Distributed Control Systems (DCS) and ProSafe-RS safety instrumented systems (SIS). It is designed to provide a secure and organized interface between field instrumentation and analog I/O modules.
This board is commonly applied in process automation environments requiring high reliability, stable signal transmission, and safe field wiring management, such as oil & gas, petrochemical, and power generation facilities.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Yokogawa |
| Model | SEA4D-01 |
| Product Type | Analog Terminal Board |
| Function | Analog Signal Termination / Field Wiring Interface |
| System Compatibility | Yokogawa CENTUM / ProSafe-RS / DCS & SIS systems |
| Channel Capacity | Typically 16 analog channels (system dependent) |
| Mounting Type | 19-inch rack mount |
| Installation | Control cabinet / marshalling panel |
| Dimensions | 482.6 × 88.1 × 85 mm |
| Weight | 1.5 kg |
| Terminal Type | M4 screw terminals |
| Signal Type | Analog input/output (4–20 mA / voltage signals depending on system) |
| Operating Temperature | -20°C to +60°C |
| Country of Manufacture | Japan |
Function and Working Principle
The SEA4D-01 operates as a passive interface terminal board between field devices and DCS/SIS analog I/O modules.
Its core functions include:
- Providing secure termination points for analog field wiring
- Connecting transmitters, sensors, and actuators to control system I/O modules
- Organizing large-scale analog signal wiring inside control cabinets
- Reducing wiring errors during installation and maintenance
- Supporting stable and noise-resistant signal transmission
The board does not perform signal processing; instead, it ensures that analog signals are safely routed from field instrumentation to Yokogawa I/O modules.
Role in Industrial Control Systems
Within Yokogawa control architectures, the SEA4D-01 acts as a wiring and signal distribution interface layer, connecting:
- Field transmitters (pressure, temperature, flow, level)
- Analog input/output modules
- Field Control Units (FCU)
- ProSafe-RS safety systems (in SIS configurations)
- Control cabinet marshalling systems
This structure improves maintainability, reduces wiring complexity, and enhances system reliability in large-scale industrial plants.
Industrial Applications
The Yokogawa SEA4D-01 is widely used in:
- Distributed Control Systems (DCS)
- Safety Instrumented Systems (SIS)
- Oil and gas production facilities
- Petrochemical and refining plants
- Power generation stations
- Chemical processing industries
- Water and wastewater treatment systems
- Industrial automation control cabinets
It is especially important where high-density analog signal wiring must be safely organized and maintained.
Installation and System Integration
Proper installation ensures stable signal performance and system safety.
Recommended practices include:
- Install in standard 19-inch control cabinet racks
- Ensure correct channel mapping and labeling
- Use shielded cables for analog signals where required
- Maintain proper grounding to reduce electrical noise
- Verify wiring continuity before commissioning
- Follow Yokogawa wiring and system integration standards
Correct installation reduces troubleshooting effort and improves long-term reliability.
Compatible System Components
The SEA4D-01 is commonly used with:
- Yokogawa analog I/O modules
- Field Control Units (FCU)
- CENTUM DCS systems
- ProSafe-RS safety systems
- Field transmitters (4–20 mA devices)
- Junction boxes and marshalling panels
- System cable assemblies
These components form a complete and reliable analog signal acquisition system.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| SEA4D-01 | Analog Terminal Board | Standard analog termination | DCS/SIS systems |
| AEA4D-01 | Analog Terminal Board | Compact analog I/O interface | Process control systems |
| SBD4D-06 | Digital Terminal Board | Digital signal termination | Discrete I/O systems |
| SED4D-06 | Digital Terminal Board | Safety digital I/O interface | SIS applications |
| SEA4D-06 | Analog Terminal Board | Updated version (replacement series) | Modern DCS systems |
Key Advantages
- Reliable analog signal termination for field wiring
- Improves wiring organization inside control cabinets
- Strong compatibility with Yokogawa DCS and SIS systems
- Reduces installation and maintenance complexity
- Industrial-grade rack-mounted design
- Supports stable signal transmission in noisy environments
- Enhances long-term system maintainability
- Suitable for continuous 24/7 operation
- Proven performance in critical process industries
Technical FAQs
What is the main function of SEA4D-01?
It provides termination and organized wiring connections for analog field signals in Yokogawa control systems.
Is SEA4D-01 an active module?
No. It is a passive terminal board and does not perform signal processing.
Where is it used?
It is used in Yokogawa DCS and ProSafe-RS systems for analog signal wiring and distribution.
Does it amplify or convert signals?
No. It only provides physical connection and wiring interface functions.
Conclusion
The Yokogawa SEA4D-01 Analog Terminal Board is a key infrastructure component in Yokogawa Distributed Control Systems. It ensures safe, organized, and reliable termination of analog field wiring, improving system maintainability and reducing installation complexity. With its robust industrial design and strong compatibility with control and safety systems, it plays an essential role in modern process automation environments.