KOMYO FA-470 COMBUSTIBLE GAS ALARM

 

Manufacturer

Komyo Rikagaku Kogyo Co., Ltd.

Country of Origin

Japan

Product Type

Marine Combustible Gas Alarm Controller

Model

FA-470

Marine Application

Combustible gas leak detection and alarm system for engine rooms, pump rooms, cargo areas, fuel handling systems, LNG/LPG spaces, and hazardous marine environments.

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Product Introduction

The Komyo FA-470 Combustible Gas Alarm is a reliable marine gas monitoring controller designed to detect combustible gas leaks before they reach dangerous concentrations. The system continuously receives signals from combustible gas sensors installed throughout the vessel and provides immediate visual and audible alarms whenever gas concentration exceeds the preset safety limits.

The unit shown in your photograph is a Komyo FA-470 Combustible Gas Alarm Controller, featuring Power and Alarm status indicators together with a manual Reset function. This controller has been widely used on merchant vessels, tankers, offshore platforms, chemical carriers, and industrial marine applications where combustible gas monitoring is required.

SM MARINE SERVICE™ supplies complete Komyo FA-470 systems, replacement controllers, spare parts, repair services, calibration, testing, and worldwide technical support.

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What is the Komyo FA-470?

The FA-470 is a central gas alarm controller that supervises combustible gas detectors installed in hazardous locations throughout a ship. It continuously monitors gas concentration and activates alarm outputs before gas reaches explosive levels.

The controller helps protect:

• Crew members
• Engine room equipment
• Cargo systems
• Fuel handling areas
• Electrical equipment
• Entire vessel safety

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Main Features

• Continuous combustible gas monitoring
• Power status indication
• Alarm indication
• Manual reset function
• Sensor fault monitoring
• Relay alarm outputs
• Marine-grade enclosure
• High reliability electronic design
• Easy installation
• Low maintenance
• Stable long-term operation
• Suitable for hazardous marine environments

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Main Components

A complete Komyo FA-470 system generally includes:

• FA-470 Controller
• Combustible Gas Sensors
• Sensor Junction Boxes
• Power Supply Module
• Alarm Relay Board
• Display Circuit
• Buzzer Circuit
• Terminal Blocks
• Calibration Interface
• Detector Cabling
• Alarm Indicators

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Marine Applications

The Komyo FA-470 is commonly installed on:

• Oil Tankers
• Chemical Tankers
• LPG Carriers
• LNG Carriers
• Offshore Platforms
• FPSOs
• Engine Rooms
• Pump Rooms
• Compressor Rooms
• Fuel Treatment Areas
• Hazardous Machinery Spaces

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Common Problems & Troubleshooting

Typical service issues include:

• False gas alarms
• Sensor aging
• Detector calibration drift
• Power supply failure
• Alarm relay malfunction
• Communication failure
• PCB defects
• Wiring faults
• Sensor contamination
• Controller internal faults

Routine inspection and calibration ensure accurate gas leak detection and dependable system performance.

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Maintenance Tips

• Perform regular gas sensor calibration.
• Test alarm outputs periodically.
• Inspect wiring and cable glands.
• Clean detector heads according to manufacturer recommendations.
• Verify Power and Alarm indicators.
• Replace expired gas sensors.
• Record calibration history for class inspections.

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Why Ships Still Use the Komyo FA-470

Many vessels continue operating the FA-470 because it offers:

• Proven reliability
• Simple operation
• Rugged marine construction
• Accurate combustible gas monitoring
• Easy maintenance
• Long service life
• Availability of replacement parts

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Frequently Asked Questions (FAQ)

Can the Komyo FA-470 be repaired?

Yes. Power supply circuits, relay outputs, PCB assemblies, and other electronic components can often be repaired and functionally tested.

Do you supply spare parts?

Yes. SM MARINE SERVICE™ supplies complete systems, controllers, gas sensors, alarm boards, power supply modules, and compatible spare parts.

Can you calibrate the system?

Yes. We provide calibration, repair, functional testing, troubleshooting, and technical support.

Is the FA-470 suitable for marine applications?

Yes. It was specifically designed for reliable combustible gas monitoring in marine and offshore environments.

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Short Product Description

The Komyo FA-470 Combustible Gas Alarm is a dependable marine gas detection controller designed to continuously monitor combustible gas concentrations and provide early warning alarms to help prevent fires, explosions, and hazardous gas incidents onboard ships.

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User Manual & Technical Resources

Available documentation includes:

• Komyo FA-470 User Manual
• Service Manual
• Installation Manual
• Wiring Diagram
• Calibration Procedure
• Maintenance Manual
• Spare Parts Catalogue
• Technical Specifications
• Troubleshooting Guide

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SM MARINE SERVICE™

SM MARINE SERVICE™ supplies Komyo FA-470 Combustible Gas Alarm Controllers, gas detection systems, gas sensors, alarm modules, spare parts, repair services, calibration, functional testing, and worldwide technical support.

Bangladesh Office
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh

China Warehouse & Support Center
Shanghai, China

Available Supply

• New Equipment
• Used Equipment
• Professionally Reconditioned Equipment

Services

• Worldwide Supply
• Spare Parts
• Repair & Overhaul
• Calibration
• Functional Testing
• Technical Support
• Global Shipping

Website: www.smmarineservice.com

Email: info@smmarineservice.com

WhatsApp: +8801818929292

Marketing Contact: Nazmul Hasan Bhuiyan

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