Manufacturer

YAMAMOTO Electric Instrument Co., Ltd. (Y.E.I.)

Country of Origin

Japan

Product Type

Marine Intrinsically Safe Barrier System Module

Marine Application

Marine Automation, Engine Monitoring, Alarm & Safety Systems

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Y.E.I Barrier System DS-P2 – Marine Intrinsically Safe Barrier Module

Product Introduction

The Y.E.I Barrier System DS-P2 is a high-reliability intrinsically safe barrier module developed by YAMAMOTO Electric Instrument Co., Ltd. (Y.E.I.), Japan. It is designed to safely interface field-mounted hazardous-area sensors with marine automation and monitoring systems while limiting electrical energy entering hazardous circuits.

This module is widely installed on commercial vessels, tankers, offshore support vessels, chemical carriers, LPG/LNG ships, and other marine installations where hazardous-area instrumentation must communicate safely with engine monitoring and control equipment. The DS-P2 is recognized for its robust construction, long operational life, and dependable performance in demanding marine environments.

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What Is This Equipment?

The DS-P2 Barrier System is an electrical isolation and intrinsic safety interface used between hazardous-area devices and shipboard automation systems.

Its primary purpose is to:

• Protect connected control equipment
• Limit voltage and current supplied to hazardous locations
• Improve electrical safety
• Reduce the risk of ignition
• Protect PLCs, monitoring systems and alarm systems from abnormal electrical conditions

These modules are commonly installed inside marine automation cabinets where sensors from fuel tanks, engine rooms, cargo systems or hazardous spaces require intrinsically safe connections.

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Main Features

• Japanese marine-quality construction
• High reliability for continuous operation
• Intrinsically safe interface
• Compact DIN/control cabinet installation
• Suitable for hazardous-area instrumentation
• Stable signal transmission
• Low maintenance requirement
• Long operational service life
• Easy replacement during maintenance
• Proven performance in marine automation systems

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Main Components

A typical Y.E.I Barrier System includes:

• Barrier Module (DS-P2)
• Intrinsic Safety Circuit
• Signal Isolation Circuit
• Input Terminal Block
• Output Terminal Block
• Protective Components
• Metal Housing
• Identification Nameplate
• Mounting Hardware

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Applications

The Y.E.I DS-P2 is commonly used in:

• Engine Monitoring Systems
• Marine Automation Systems
• Alarm & Monitoring Systems
• Fuel Oil Monitoring
• Cargo Monitoring Systems
• Tank Level Monitoring
• Pressure Transmitters
• Temperature Sensors
• Hazardous Area Instrumentation
• Offshore Platforms
• Chemical Tankers
• Oil Tankers
• LPG/LNG Vessels
• Marine Control Panels

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Common Problems & Troubleshooting

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Maintenance Tips

To maximize service life:

• Inspect terminals periodically.
• Keep the enclosure clean and dry.
• Check for corrosion caused by marine humidity.
• Verify grounding during scheduled maintenance.
• Replace damaged wiring immediately.
• Avoid excessive vibration.
• Confirm signal integrity after maintenance work.
• Maintain adequate cabinet ventilation.

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Why Ships Still Use This Equipment

Although modern automation systems continue to evolve, many commercial ships still operate with proven Y.E.I barrier modules because they provide:

• Exceptional reliability
• Stable signal isolation
• Long service life
• Easy replacement
• Excellent compatibility with legacy automation systems
• Low operating cost
• Trusted Japanese engineering

For vessels operating worldwide, retaining reliable barrier systems often minimizes downtime and avoids costly control system upgrades.

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Frequently Asked Questions (FAQ)

What is the Y.E.I DS-P2?

It is a marine intrinsically safe barrier module used to safely connect hazardous-area field instruments to shipboard automation systems.

Who manufactures the DS-P2?

YAMAMOTO Electric Instrument Co., Ltd. (Y.E.I.), Japan.

Where is it installed?

Inside marine automation cabinets, engine control rooms, cargo monitoring systems, and hazardous-area control panels.

Can it be replaced individually?

Yes. Individual barrier modules are normally replaceable during maintenance.

Is it suitable for marine applications?

Yes. It is specifically designed for demanding marine and offshore automation environments.

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Short Product Description

The Y.E.I Barrier System DS-P2 is a Japanese marine intrinsically safe barrier module designed for hazardous-area signal isolation and protection. It provides dependable communication between field instrumentation and ship automation systems while maintaining electrical safety. The DS-P2 is widely used on commercial vessels and offshore installations requiring reliable monitoring and control.

SM MARINE SERVICE™

Marine Automation & Navigation Equipment Supplier

Available Condition

• New Equipment
• Used Equipment
• Refurbished Equipment
• Reconditioned Equipment

Stock Location

• Bangladesh
• China

Services

• Worldwide Shipping
• Technical Support
• Spare Parts Supply
• Marine Equipment Sourcing

Contact Information

SM MARINE SERVICE™
Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh

Mobile / WhatsApp / Viber: +88 01818 929292

Email: info@smmarineservice.com

Website: www.smmarineservice.com

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