DECKMA OMD-24
Effective bilge water management is essential for maintaining marine environmental compliance and preventing the discharge of excessive oil content into the sea. The OMD-24 Series Bilge Alarm Unit is designed specifically for integration with 15 ppm oily water separator systems, providing accurate oil-content monitoring and reliable alarm protection for shipboard applications.
Engineered to meet and exceed the requirements of IMO Resolution MEPC.107(49), the OMD-24 combines accurate measurement, adjustable alarm settings, malfunction indication, and optional data logging capabilities in a compact marine-grade system.
Swift Marine Tech Services Pte Ltd provides professional marine equipment solutions and technical support for bilge alarm systems, oily water separators, marine monitoring equipment, calibration, troubleshooting, and maintenance.
Reliable Bilge Monitoring. Faster Alarm Response. Stronger Environmental Protection.
Why OMD-24 Is a Smart Choice for Bilge Water Monitoring
The OMD-24 Bilge Alarm continuously monitors the oil concentration of water discharged from an oily water separator. If the measured oil content reaches the configured alarm threshold, the system provides a visible alarm and activates the corresponding relay outputs.
With a measurement range of 0–30 ppm and an IMO monitoring range of 0–15 ppm, the OMD-24 offers dependable monitoring for vessels where accurate oil-content detection and environmental protection are critical.
Key Features of the OMD-24 Bilge Alarm
Adjustable 15 PPM Alarm Settings
The OMD-24 is supplied with two factory-adjusted 15 ppm alarms. Alarm thresholds can be adjusted between 1 ppm and 15 ppm, allowing the system to be configured according to operational requirements.
High-Accuracy Oil Content Monitoring
The system is designed to provide measurement performance exceeding the requirements of IMO MEPC.107(49), supporting reliable monitoring of oily water separator discharge.
Fast Alarm Response
The OMD-24 provides rapid alarm response to help operators identify excessive oil concentration and take corrective action quickly.
Dual Independent Alarm Relays
Two independently adjustable alarm contacts provide flexible control and alarm functionality for shipboard oily water separator systems.
Built-In Malfunction Indication
The front-panel SYS LED provides an immediate indication of system status. A change from normal green indication to solid red alerts operators to a malfunction.
Optional 0/4–20 mA Output
An optional analog output enables connection to external recorders, meters, and vessel monitoring or automation systems.
IP65 Marine Protection
The IP65 enclosure provides protection against dust and water ingress, making the OMD-24 suitable for demanding marine and engine-room environments.
OMD-24 Technical Specifications
| Parameter | Specification |
|---|---|
| Measurement Range | 0–30 ppm |
| IMO Measurement Range | 0–15 ppm |
| Accuracy | Better than IMO MEPC.107(49) |
| Power Supply | 24V AC/DC ±10% |
| Power Consumption | <5 VA |
| Sample Flow | 0.1–4 L/min |
| Sample Temperature | +1°C to +65°C |
| Alarm Set Points | 1–15 ppm |
| Factory Alarm Setting | 15 ppm |
| Alarm Contacts | 2 Independent Changeover Contacts |
| Analog Output | 0/4–20 mA |
| Display | Graphic Display |
| Protection | IP65 |
| Ambient Temperature | +1°C to +55°C |
Key Benefits of the OMD-24 Bilge Alarm Unit
Enhanced Environmental Protection – Continuously monitors oil concentration in bilge water to help prevent excessive oil discharge into the marine environment.
IMO Compliance Support – Designed to meet and exceed the requirements of IMO MEPC.107(49) for 15 ppm bilge alarm systems.
Accurate Oil Content Monitoring – Provides reliable measurement across a 0–30 ppm range, supporting precise monitoring of oily water separator discharge.
Fast Alarm Response – Quickly alerts operators when the configured oil concentration limit is exceeded, enabling prompt corrective action.
Flexible Alarm Configuration – Alarm set points can be adjusted from 1–15 ppm, allowing the system to suit different operational requirements.
Reliable Fault Detection – Built-in system status indication helps engineers identify malfunctions quickly and reduce troubleshooting time.
Easy Integration with Automation Systems – Optional 0/4–20 mA output allows connection to external meters, recorders, and vessel monitoring systems.
Reduced Operational Risk – Dual independent alarm relays provide dependable alarm and control functionality for oily water separator systems.
Marine-Grade Construction – IP65 protection and robust components support reliable operation in demanding shipboard environments.
Simplified Maintenance – Compact design and accessible components make inspection, cleaning, servicing, and calibration more convenient.
Improved OWS Performance Monitoring – Helps operators verify the effectiveness of the 15 ppm oily water separator system before discharge.
Supports Reliable Vessel Operations – Continuous monitoring helps minimize environmental risks, unexpected alarms, and potential operational disruptions.
International Standards & Certification
The OMD-24 Series Bilge Alarm Unit is designed for marine oily-water monitoring in accordance with internationally recognized requirements for 15 ppm bilge alarms. Its compliance framework is primarily based on IMO MARPOL Annex I and IMO Resolution MEPC.107(49), which specify requirements for 15 ppm bilge separators, oil content meters, alarms, and associated stopping arrangements.
Certifications & Compliance
- IMO MARPOL Annex I – Requirements for prevention of pollution by oil and shipboard oily-water discharge.
- IMO Resolution MEPC.107(49) – Revised Guidelines and Specifications for Pollution Prevention Equipment for Machinery Space Bilges of Ships.
- 15 PPM Bilge Alarm Requirements – Designed for monitoring oil content in oily-water separator effluent at the 15 ppm limit.
- 15 PPM Oil Content Monitoring – Supports continuous monitoring of separator discharge.
- Type Approval Requirements – MEPC.107(49) specifies type-approval testing for 15 ppm bilge alarms, including environmental testing.
- Alarm & Automatic Stopping Requirements – The IMO framework requires alarm activation when oil content exceeds 15 ppm and appropriate automatic stopping arrangements.
- Response-Time Requirements – MEPC.107(49) specifies a maximum 5-second response for the bilge alarm display and a maximum 20-second overall response for stopping overboard discharge where applicable.
- Onboard Calibration/Accuracy Verification – Accuracy checks and calibration documentation are addressed under the MEPC.107(49) requirements for 15 ppm bilge alarms.
Smarter Bilge Protection. Accurate 15 PPM Detection.




Why Choose Swift Marine Tech Solutions Pte Ltd?
Swift Marine Tech Solutions Pte Ltd is a trusted provider of marine equipment solutions, technical services, maintenance, calibration, and troubleshooting support for vessels, ship managers, shipyards, offshore operators, and marine industries.
With practical knowledge of shipboard equipment and marine automation systems, we help customers maintain dependable equipment performance while supporting operational efficiency, environmental compliance, and vessel safety.
Our expertise covers marine automation, bilge monitoring, oily water separators, 15 ppm bilge alarms, oil mist detection, marine instrumentation, calibration, troubleshooting, inspection, and maintenance services.
Our Marine Technical Services
Marine Equipment Supply
We support customers with reliable marine automation and instrumentation equipment, components, accessories, and replacement parts for various shipboard applications.
Installation & Commissioning
Our technical team provides assistance with equipment installation, system integration, commissioning, functional testing, and operational verification to ensure equipment is properly configured for vessel operation.
Calibration Services
Accurate measurement is essential for marine monitoring systems. We provide calibration and performance verification support for suitable marine instrumentation and monitoring equipment.
Troubleshooting & Fault Diagnosis
Our engineers assist with identifying and resolving equipment issues including alarm faults, sensor problems, incorrect readings, communication errors, flow problems, and system malfunctions.
Preventive Maintenance
Regular maintenance can help reduce unexpected equipment failures and vessel downtime. Our maintenance support includes inspection, cleaning, testing, adjustment, component checks, and performance verification.
Repair & Overhaul Support
We provide technical assistance for the repair, servicing, and overhaul of marine monitoring and automation equipment, helping extend equipment service life and maintain reliable operation.
Bilge Alarm & Oily Water Separator Support
We specialize in technical support for 15 ppm bilge alarm systems and oily water separator monitoring equipment, including inspection, troubleshooting, calibration assistance, measuring cell maintenance, and system testing.
Marine Automation & Instrumentation
Our technical capabilities extend to marine automation systems, sensors, monitoring instruments, control equipment, transmitters, alarms, and associated shipboard instrumentation.
Contact Swift Marine Tech Services Pte Ltd
OMD-24 Bilge Alarm | Reliable 15ppm Oil Content Monitoring Solution
Supply • Technical Support • Inspection • Maintenance • Troubleshooting • Calibration Support • Measuring Cell Support • Spare Parts • Replacement Equipment