Fellow Kogyo FOCAS-1800 15ppm Bilge Alarm

Manufacturer

Fellow Kogyo Co., Ltd.

Country of Origin

Japan

Product Type

15ppm Bilge Alarm & Oil Content Monitoring System

Marine Application

Oily Water Separator (OWS) Monitoring and MARPOL Pollution Prevention System

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Product Introduction

The Fellow Kogyo FOCAS-1800 15ppm Bilge Alarm is a highly reliable marine pollution prevention device designed to continuously monitor oil concentration in bilge water discharged from a vessel's Oily Water Separator (OWS).

The primary purpose of the system is to ensure compliance with IMO MARPOL Annex I regulations, which prohibit the discharge of oily water containing more than 15 parts per million (ppm) of oil into the sea.

The FOCAS-1800 continuously measures oil content and automatically generates alarms whenever oil concentration exceeds permitted limits.

For ship owners, chief engineers, superintendents, and environmental compliance officers, the FOCAS-1800 remains an important piece of marine environmental protection equipment.

Original Product Image

The image above shows an actual Fellow Kogyo FOCAS-1800 Bilge Alarm System supplied by SM MARINE SERVICE™, including the monitor unit and detector assembly.

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What Is a 15ppm Bilge Alarm?

A 15ppm Bilge Alarm is an IMO-required monitoring device installed after the Oily Water Separator.

Its purpose is to continuously measure oil concentration in discharged water.

When oil content exceeds 15ppm:

• Alarm activates
• Discharge is stopped automatically
• Three-way valve changes position
• Overboard discharge is prevented
• Environmental compliance is maintained

The system acts as the final protection barrier against marine pollution.

Bilge Alarm Images

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How the FOCAS-1800 Works

The FOCAS-1800 continuously samples water flowing from the Oily Water Separator.

The detector cell analyzes the oil content using optical measurement technology.

The measured value is displayed on the monitor unit.

When oil concentration exceeds preset limits:

1. Alarm activates.
2. Visual indication appears.
3. Relay outputs operate.
4. Automatic discharge stopping functions activate.
5. Vessel remains MARPOL compliant.

The monitoring process operates continuously while the OWS is running.

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Main Features

Continuous Oil Content Monitoring

Provides real-time monitoring of discharged water quality.

15ppm Alarm Protection

Automatically detects excessive oil concentration.

Automatic Relay Outputs

Supports automatic valve control and discharge shutdown.

Compact Marine Design

Suitable for installation in machinery spaces.

IMO Compliance

Designed for use with IMO-approved Oily Water Separator systems.

Easy Calibration

Allows periodic calibration and verification.

Long Service Life

Reliable operation in harsh marine environments.

Monitoring System Images

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Main Components

1. Monitor Unit

The main control and display section.

Functions

• Oil content display
• Alarm management
• Relay control
• System diagnostics

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2. Detector Cell

Measures oil concentration in sampled water.

Functions

• Oil detection
• Optical analysis
• Measurement processing

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3. Sampling System

Provides water samples to the detector.

Functions

• Continuous sample flow
• Stable measurement

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4. Alarm Relay Outputs

Controls external equipment.

Functions

• Alarm activation
• Automatic shutdown
• Valve control

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5. Calibration Interface

Used for testing and calibration procedures.

Functions

• Accuracy verification
• Maintenance support

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Marine Applications

The FOCAS-1800 is commonly installed on:

Commercial Ships

• Bulk Carriers
• Container Ships
• Oil Tankers
• Chemical Tankers
• LPG Carriers
• LNG Carriers

Offshore Vessels

• Platform Supply Vessels
• Offshore Support Vessels

Engine Room Systems

• Oily Water Separator Systems
• Bilge Treatment Systems
• Environmental Compliance Systems

The system is an essential component of MARPOL Annex I compliance.

OWS Installation Images

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Common Alarm Conditions

Typical alarms include:

Oil Alarm

Oil concentration exceeds 15ppm.

Detector Alarm

Detector contamination or malfunction.

Sample Flow Alarm

Insufficient sample flow through detector.

Calibration Error

Calibration values outside limits.

System Fault Alarm

Internal electronics or communication fault.

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Common Problems & Troubleshooting

High Oil Content Alarm

Possible Causes

• OWS malfunction
• Excessive oil contamination
• Bilge water quality issue

Corrective Actions

• Stop discharge
• Check OWS operation
• Verify separator performance

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Detector Cell Contamination

Possible Causes

• Dirty optical surfaces
• Oil deposits

Corrective Actions

• Clean detector cell
• Verify sample quality

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No Sample Flow

Possible Causes

• Blocked sampling line
• Valve closed
• Pump malfunction

Corrective Actions

• Inspect sample line
• Check valves
• Verify flow

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False Alarm

Possible Causes

• Dirty detector
• Calibration drift
• Air bubbles

Corrective Actions

• Clean detector
• Recalibrate system
• Remove air from sampling line

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Maintenance Tips

Daily Checks

• Verify displayed ppm value
• Confirm no active alarms

Weekly Checks

• Inspect sample flow
• Check detector condition

Monthly Checks

• Test alarm functions
• Verify relay outputs

Quarterly Maintenance

• Clean detector cell
• Inspect electrical connections

Annual Maintenance

• Full calibration
• Performance verification
• Certification inspection

Maintenance Images

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Why Ships Still Use the FOCAS-1800

The FOCAS-1800 remains popular because:

• Proven Japanese reliability
• Accurate oil content measurement
• IMO compliance support
• Easy maintenance
• Long service life
• Reliable alarm operation
• Worldwide acceptance

Many vessels continue operating FOCAS systems successfully for years with proper maintenance and calibration.

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Frequently Asked Questions (FAQ)

What is a 15ppm Bilge Alarm?

A device that continuously measures oil concentration in discharged bilge water and activates alarms when oil exceeds 15ppm.

Why is 15ppm important?

IMO MARPOL regulations prohibit discharge of oily water exceeding 15ppm.

Can the FOCAS-1800 stop discharge automatically?

Yes. Through relay outputs and connected control systems.

Does the detector require cleaning?

Yes. Periodic cleaning is essential for measurement accuracy.

Is calibration required?

Yes. Regular calibration and verification are mandatory for compliance.

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Short Product Description

The Fellow Kogyo FOCAS-1800 15ppm Bilge Alarm is a marine oil content monitoring system designed to ensure compliance with MARPOL Annex I regulations. The system continuously measures oil concentration in bilge water discharged from Oily Water Separator systems and activates alarms whenever oil content exceeds 15ppm. Its reliable operation, accurate measurement technology, and IMO-compliant design make it a trusted environmental protection solution for vessels worldwide.

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Assembly Details

Complete System Assembly Includes

1. Monitor Unit

• LCD display
• Alarm indicators
• Control electronics

2. Detector Cell Assembly

• Optical measurement chamber
• Oil sensing components

3. Sampling System

• Water sample inlet
• Flow control assembly

4. Alarm Output Module

• Relay outputs
• Shutdown interfaces

5. Calibration Assembly

• Calibration ports
• Verification connections

6. Communication Interface

• External system integration

7. Mounting Hardware

• Brackets
• Fasteners

8. Electrical Connection Assembly

• Terminal blocks
• Power supply connections

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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