DECKMA OMD-2008 Series 15ppm Bilge Alarm Unit

Overview

DECKMA OMD-2008 Series 15ppm Bilge Alarm Unit | IMO Approved Marine Oil Content Monitoring System

The DECKMA OMD-2008 Series 15ppm Bilge Alarm Unit is a marine oil content monitoring system designed for continuous measurement of oil concentration in treated bilge water discharged from approved oily water separator systems. Developed for commercial ships and offshore applications, the OMD-2008 Series exceeds the performance requirements of IMO Resolution MEPC.107(49) and supports compliance with MARPOL Annex I by continuously monitoring oil content, activating alarms, and controlling overboard discharge when preset limits are exceeded. The system combines a rugged measuring cell, intelligent computer unit, integrated data logging, and flexible alarm configuration to deliver reliable long-term performance in demanding marine environments.

At Ship Care Service, we supply genuine DECKMA OMD-2008 Series 15ppm Bilge Alarm Units, measuring cells, spare parts, replacement accessories, calibration support, and technical assistance for commercial vessels, offshore platforms, shipyards, and marine engineering companies worldwide.

What is the DECKMA OMD-2008 Series?

The DECKMA OMD-2008 Series is an IMO-approved 15ppm Bilge Alarm Unit installed downstream of an approved oily water separator. Its primary purpose is to continuously monitor the oil concentration in treated bilge water before discharge overboard.

If the measured oil concentration exceeds the configured alarm value, the system activates visual and audible alarms while operating the Automatic Stopping Device (ASD) when connected. The unit also records separator status, alarms, and operational events through its integrated data logging system.

Why a 15ppm Bilge Alarm is Important

International marine pollution regulations require vessels fitted with oily water separators to continuously monitor discharged bilge water.

A certified bilge alarm helps operators:

• Support compliance with MARPOL Annex I

• Meet IMO MEPC.107(49) requirements

• Prevent accidental oil discharge

• Protect the marine environment

• Support Port State Control inspections

• Maintain discharge records

• Improve onboard environmental compliance

How the DECKMA OMD-2008 Series Works

The OMD-2008 Series continuously monitors treated bilge water whenever the oily water separator is operating.

Step 1 – Bilge Water Sampling

A representative sample of treated bilge water flows through the optical measuring cell installed after the oily water separator.

Step 2 – Optical Oil Content Measurement

The measuring cell continuously measures oil concentration using DECKMA's optical sensing technology. The microprocessor processes the sensor signals to provide accurate real-time oil content measurement.

Step 3 – Digital Signal Processing

The computer unit continuously evaluates:

• Oil concentration

• Alarm status

• Measuring cell condition

• System diagnostics

• Separator operating status

• Data logging information

The graphic display provides operators with real-time operating information.

Step 4 – Alarm & Automatic Discharge Control

When oil concentration exceeds the configured alarm value, the system can:

• Activate visual alarms

• Activate audible alarms

• Operate the Automatic Stopping Device (ASD)

• Stop or divert overboard discharge

• Record operational events every 15 seconds as required for data logging.

Key Features of the DECKMA OMD-2008 Series

IMO Approved Performance

The OMD-2008 Series exceeds the performance requirements specified in IMO Resolution MEPC.107(49) for 15ppm Bilge Alarm Units.

Graphic LCD Display

The integrated graphic display provides easy access to:

• Oil concentration

• Alarm status

• System diagnostics

• Operating parameters

• Maintenance information

Adjustable Alarm Settings

The unit is supplied with factory-adjusted alarms at 15 ppm, while alarm set points between 1 ppm and 15 ppm can be configured according to operational requirements. Optional 10 ppm and 5 ppm versions are also available.

Integrated Data Logging

The OMD-2008 Series continuously records:

• Oil concentration

• Alarm history

• Separator status

• Operating events

This information supports onboard maintenance and inspection requirements.

Flexible Installation

The system consists of a computer unit and measuring cell that can be installed for convenient operation and maintenance. It is suitable for both new vessel construction and retrofit applications.

Rugged Marine Construction

The measuring cell features an anodized aluminium body with stainless steel inlet and outlet components, designed for reliable operation in demanding marine environments.

Typical Applications

The DECKMA OMD-2008 Series is commonly installed on:

• Container Ships

• Bulk Carriers

• Oil Tankers

• Chemical Tankers

• Offshore Support Vessels

• Passenger Ships

• Naval Vessels

• General Cargo Ships

• Marine Power Plants

Industries We Serve

The OMD-2008 Series is widely used across:

• Commercial Shipping

• Offshore Oil & Gas

• Marine Engineering

• Ship Management

• Shipyards

• Marine Service Companies

• Port Operations

• Marine Environmental Compliance

Who Uses the DECKMA OMD-2008 Series?

Typical users include:

• Chief Engineers

• Marine Engineers

• Technical Superintendents

• Shipowners

• Ship Management Companies

• Offshore Operators

• Marine Service Engineers

• Environmental Compliance Officers

• Shipyards

Why Choose the DECKMA OMD-2008 Series?

Marine operators worldwide choose the DECKMA OMD-2008 Series because it offers:

• Continuous 15ppm oil content monitoring

• IMO-compliant performance

• Adjustable alarm settings

• Integrated event and data logging

• Graphic LCD display

• Rugged marine construction

• Flexible installation

• Reliable long-term operation onboard commercial vessels.

Technical Overview

The DECKMA OMD-2008 Series 15ppm Bilge Alarm Unit is a marine-approved oil content monitoring system designed for continuous measurement of oil concentration in treated bilge water discharged from approved oily water separator systems. Installed downstream of the separator, the OMD-2008 Series continuously monitors oil content before overboard discharge to help vessels comply with MARPOL Annex I and IMO Resolution MEPC.107(49).

The system consists of a computer unit, an optical measuring cell, and associated sampling and communication components. During operation, treated bilge water passes through the measuring cell where oil concentration is continuously measured. The computer unit processes measurement data, supervises system performance, records operational events, and activates alarms or automatic stopping devices whenever oil concentration exceeds the configured discharge limit.

Designed specifically for marine applications, the OMD-2008 Series combines accurate measurement, integrated event logging, flexible installation, and dependable long-term operation.

Note: Installation arrangements, communication interfaces, and optional accessories may vary depending on vessel design and oily water separator manufacturer. Always verify equipment configuration using the equipment nameplate and official DECKMA documentation.

Main Components of the OMD-2008 Series

The DECKMA OMD-2008 Series consists of several integrated components that work together to provide continuous oil content monitoring.

Computer Unit

The computer unit serves as the central operating and monitoring interface.

Its functions include:

• Continuous oil content monitoring

• Alarm management

• System configuration

• Display operation

• Event recording

• Automatic Stopping Device (ASD) control

• Self-diagnostics

The graphic LCD display provides operators with real-time operating information and alarm status.

Optical Measuring Cell

The measuring cell continuously analyzes treated bilge water flowing from the oily water separator.

Its functions include:

• Optical oil content measurement

• Continuous sample monitoring

• Stable long-term operation

• Reliable measurement performance

The measuring cell is designed for easy inspection and routine maintenance.

Sampling System

The sampling arrangement continuously delivers treated bilge water through the measuring cell to ensure accurate oil concentration monitoring during separator operation.

Automatic Stopping Device (ASD) Interface

When oil concentration exceeds the configured alarm level, the OMD-2008 Series can activate an Automatic Stopping Device to stop or divert overboard discharge.

Data Logging System

The integrated memory continuously records:

• Alarm history

• Operational events

• Oil concentration records

• System status

These records assist with maintenance planning and regulatory inspections.

Working Principle

The DECKMA OMD-2008 Series continuously monitors treated bilge water whenever the oily water separator is operating.

Step 1 – Continuous Bilge Water Sampling

A representative sample of treated bilge water flows continuously through the optical measuring cell.

Step 2 – Optical Oil Content Measurement

The measuring cell continuously measures oil concentration using an optical sensing principle.

The detector identifies changes in oil concentration while maintaining stable measurement accuracy.

Step 3 – Digital Signal Processing

The computer unit continuously processes measured values while supervising:

• Oil concentration

• Alarm status

• Measuring cell condition

• System diagnostics

• Operational records

Step 4 – Alarm & Automatic Discharge Protection

When oil concentration exceeds the configured alarm threshold, the system can:

• Activate visual alarms

• Activate audible alarms

• Operate the Automatic Stopping Device

• Stop or divert overboard discharge

• Record alarm events within the internal data logging system

This helps prevent accidental discharge of oily water exceeding permitted limits.

Advantages of the DECKMA OMD-2008 Series

Continuous Oil Content Monitoring

The OMD-2008 Series continuously supervises treated bilge water during oily water separator operation.

Regulatory Compliance

The system supports compliance with international marine pollution prevention regulations for oily water discharge.

Graphic LCD Display

The display provides operators with clear operating information, alarm status, diagnostic messages, and maintenance indications.

Adjustable Alarm Configuration

Alarm settings can be configured within the allowable operating range to meet vessel operational requirements.

Integrated Data Logging

The internal memory stores operational history and alarm events for maintenance records and environmental inspections.

Flexible Installation

Its modular design allows installation on new vessels as well as retrofit projects with varying engine room layouts.

Marine-Grade Construction

The OMD-2008 Series is designed to operate reliably under demanding marine conditions, including:

• High humidity

• Continuous engine room vibration

• Temperature fluctuations

• Long operating hours

• Offshore environments

Routine Maintenance

Routine maintenance helps ensure reliable monitoring accuracy and dependable long-term operation.

Before Operation

Inspect:

• Computer unit display

• Alarm indicators

• Measuring cell condition

• Sampling lines

• Electrical connections

Verify that the system indicates normal operating status before starting the oily water separator.

Weekly Inspection

Check:

• Measuring cell cleanliness

• Alarm operation

• Display information

• Sampling flow

• Visible leakage

Inspect the sampling arrangement for contamination or restrictions.

Monthly Inspection

Inspect:

• Measuring cell

• Sampling system

• Electrical wiring

• Connectors

• Mounting hardware

Clean the measuring cell in accordance with DECKMA maintenance recommendations.

Annual Maintenance

Recommended maintenance includes:

• Functional testing

• Calibration verification

• Alarm testing

• Measuring cell inspection

• Data logging verification

• Electrical inspection

• Sampling system inspection

Maintenance activities should be documented within the vessel's Planned Maintenance System (PMS).

Common Operational Problems

Although the OMD-2008 Series is designed for reliable long-term operation, certain operational issues may occasionally occur.

Problem: High Oil Content Alarm

Possible Causes

• Oily water separator malfunction

• Excessive oil contamination

• Contaminated measuring cell

• Incorrect separator operation

Recommended Solution

Inspect the separator, verify oil concentration, and clean the measuring cell if necessary.

Problem: Measuring Cell Contamination

Possible Causes

• Oil deposits

• Sludge accumulation

• Insufficient cleaning

• Dirty sampling lines

Recommended Solution

Inspect and clean the measuring cell following DECKMA maintenance procedures.

Problem: No Sample Flow

Possible Causes

• Blocked sampling line

• Closed isolation valve

• Sampling pump malfunction

• Air trapped in the sampling system

Recommended Solution

Inspect the sampling arrangement and restore proper flow before resuming operation.

Problem: Display or Communication Fault

Possible Causes

• Loose electrical connection

• Power interruption

• Wiring damage

• Internal electronic fault

Recommended Solution

Verify electrical supply, inspect wiring, and confirm correct operation of the computer unit.

Problem: Frequent False Alarms

Possible Causes

• Dirty measuring cell

• Air bubbles within the sample

• Calibration drift

• Unstable sample flow

Recommended Solution

Inspect the measuring cell, verify sampling conditions, and perform calibration verification where required.

Calibration Recommendations

To maintain accurate oil content measurement, periodic calibration verification should be performed according to DECKMA maintenance procedures and the vessel's Planned Maintenance System.

Calibration is generally recommended:

• During scheduled maintenance

• After replacing the measuring cell

• Following major servicing

• After extended shutdown

• According to manufacturer recommendations

• As required by company maintenance procedures

Genuine Spare Parts Available

Ship Care Service supplies genuine replacement parts for the DECKMA OMD-2008 Series, including:

• Optical Measuring Cells

• Computer Units

• Display Modules

• Sampling Components

• Solenoid Valves

• Measuring Tubes

• Power Supply Modules

• Wiring Harnesses

• Connectors

• Mounting Hardware

• Replacement Accessories

Availability depends on the installed system configuration.

Buying Guide

Before purchasing an OMD-2008 Series unit or replacement components, consider the following:

Verify System Compatibility

Confirm compatibility with the installed oily water separator and vessel configuration.

Confirm Equipment Identification

Providing the following information helps identify compatible replacement components:

• Model Number

• Serial Number

• Equipment Nameplate

• Oily Water Separator Model

• Existing Part Number (if available)

Choose Genuine Components

Using genuine replacement parts helps maintain:

• Accurate oil content monitoring

• Reliable alarm operation

• Long equipment service life

• Regulatory compliance

• Full compatibility with the installed system

Work with an Experienced Marine Supplier

Choose a supplier capable of providing:

• Genuine DECKMA products

• Technical assistance

• Spare parts support

• Worldwide marine supply

• After-sales service

Why Marine Operators Choose the DECKMA OMD-2008 Series

The DECKMA OMD-2008 Series 15ppm Bilge Alarm Unit is trusted because it offers:

• Continuous oil content monitoring

• IMO-compliant operation

• Graphic LCD display

• Adjustable alarm settings

• Integrated event recording

• Easy maintenance

• Flexible installation

• Reliable long-term marine performance