Brannstrom BilgMon 488
Swift Marine Tech Services Pte Ltd provides professional BilgMon 488 15 PPM Bilge Alarm service, calibration, troubleshooting, repair, retrofit, replacement, and maintenance solutions for commercial vessels, offshore vessels, ship operators, and marine engineering applications.
The BilgMon 488 is a marine oil content monitoring and 15 ppm bilge alarm system designed for use with Oily Water Separators (OWS). Swift Marine Tech Services Pte Ltd supports vessel owners, ship managers, technical superintendents, and marine engineers with dependable bilge monitoring solutions designed to support accurate oil-content measurement, reliable alarm operation, and compliance with applicable marine environmental requirements.
Reliable Alarms, Better Environmental Protection
What Is the BilgMon 488 15 PPM Bilge Alarm?
The BilgMon 488 is a compact marine 15 ppm bilge alarm and oil content monitor used to continuously monitor oil concentration in bilge water associated with oily water separator systems.
Using optical scattered-light measurement technology, the system provides oil-content measurement and configurable alarm functions. Its monitoring and alarm outputs can be integrated with the vessel’s OWS arrangement to support controlled discharge operations.
Swift Marine Tech Services Pte Ltd provides technical support for BilgMon 488 calibration, troubleshooting, maintenance, sensor and measuring-cell replacement, retrofit, and system replacement.
International Approvals & Compliance
The BilgMon 488 is associated with IMO Resolution MEPC.107(49) requirements for 15 ppm bilge alarms and oily-water separating equipment. Its application also relates to the wider pollution-prevention requirements of MARPOL Annex I.
Swift Marine Tech Services Pte Ltd supports vessel operators with technical service and documentation related to:
IMO MEPC.107(49)
MARPOL Annex I
15 ppm bilge monitoring requirements
Oily Water Separator monitoring
Marine equipment type-approval documentation
Calibration and service records
Vessel inspection preparation
Port State Control readiness
Applicable approvals and certificates should always be verified against the specific equipment version, certificate, vessel flag, classification requirements, and approved installation.
BilgMon 488 Technical Specifications
| Specification | BilgMon 488 |
|---|---|
| Measurement Range | 0–30 ppm |
| Alarm Range | 1–15 ppm |
| Measurement Principle | Optical scattered-light |
| Alarm Outputs | 2 adjustable outputs |
| Analog Output | 0/4–20 mA |
| Power Supply | 24V AC/DC or 115/230V AC |
| Display | LCD with keypad |
| Flushing | Automatic fresh-water flushing |
| Data Interface | USB |
| Application | 15 PPM Bilge Monitoring / OWS |
| Type Approval | IMO MEPC.107(49) |
Key Features
- Reliable 15 PPM Monitoring – Supports consistent monitoring of oil content during bilge-water discharge.
- Enhanced Marine Protection – Helps reduce the risk of excessive oily-water discharge.
- Improved OWS Control – Alarm and relay functions support effective discharge management.
- Accurate Detection – Optical measurement helps provide dependable oil-content readings.
- Simplified Maintenance – Flushing and measuring-cell arrangements support easier servicing.
- Reduced Operational Downtime – Diagnostic and alarm functions help identify system issues quickly.
- Easy System Integration – Multiple signal interfaces support connection with existing shipboard systems.
- Cost-Effective Retrofit – Compact construction supports replacement of older bilge monitoring equipment.
- Better Inspection Readiness – Reliable monitoring and maintenance records support vessel inspections.
- Long-Term Reliability – Regular calibration and preventive maintenance help maintain system performance.
Key Benefits
- 0–30 PPM Measurement Range – Continuous oil-content monitoring in bilge water.
- 1–15 PPM Adjustable Alarm – Configurable alarm threshold for discharge monitoring.
- Optical Scattered-Light Detection – Accurate optical measurement of oil concentration.
- Automatic Fresh-Water Flushing – Helps maintain measuring-cell performance.
- Dual Alarm Outputs – Supports alarm indication and OWS discharge-control functions.
- LCD Display & Keypad – Provides clear readings and system-status information.
- 0/4–20 mA Output – Enables connection with vessel monitoring and automation systems.
- USB Data Retrieval – Supports access to operating and alarm information.
- Multiple Power Options – Available for 24V AC/DC and 115/230V AC systems.
- Compact Marine Design – Suitable for OWS installations and retrofit applications.
Reliable Oil Monitoring for MARPOL-Compliant Operations





BilgMon 488 Calibration & Service Solutions
Regular inspection and calibration are important for maintaining reliable 15 ppm bilge alarm performance. Swift Marine Tech Services Pte Ltd provides technical assistance for:
BilgMon 488 calibration
Oil-content measurement verification
Sensor performance checks
Measuring-cell inspection and replacement
Alarm-function testing
Relay-output verification
Sample-flow checks
Fresh-water flushing checks
System diagnostics
Calibration documentation support
Preventive maintenance
Professional maintenance helps vessel operators identify potential problems before they lead to operational interruptions or inaccurate monitoring.
BilgMon 488 Troubleshooting & Repair
Our marine technical team can assist with troubleshooting common BilgMon 488 faults and operational issues, including:
RTC failure alarms
RTC battery-related issues
Sensor communication problems
Measuring-cell faults
No-flow alarms
Flushing problems
Display-related faults
Relay and alarm issues
Analog signal problems
Configuration issues
Communication faults
Recurring alarm conditions
Our objective is to identify the source of the problem and provide an appropriate repair, replacement, or maintenance solution.
BilgMon 488 Retrofit & Replacement Services
When an existing 15 ppm bilge alarm becomes obsolete or difficult to maintain, upgrading to a modern monitoring solution can improve serviceability and operational reliability.
Swift Marine Tech Services Pte Ltd supports:
BilgMon 488 retrofit projects
Replacement of obsolete 15 ppm bilge alarms
OWS monitoring upgrades
Sensor and measuring-cell replacement
Wiring and terminal conversion assistance
Alarm and relay interface support
Analog signal integration
Marine automation integration
Installation and commissioning support
Each retrofit should be assessed against the vessel’s existing OWS arrangement, approved drawings, electrical configuration, and applicable class and flag requirements.
Why Choose Swift Marine Tech Services Pte Ltd?
Swift Marine Tech Services Pte Ltd provides marine equipment service and technical support focused on marine automation, instrumentation, bilge monitoring, oily-water separator systems, and shipboard equipment.
Our Service Advantages
Marine engineering expertise
BilgMon 488 technical support
15 ppm bilge alarm calibration
OWS monitoring expertise
Troubleshooting and repair assistance
Retrofit and replacement solutions
Sensor and measuring-cell support
Preventive maintenance
Spare-parts sourcing assistance
Calibration and service documentation
Support for vessel operators and technical teams
Service support across the USA, UK, and Canada
Focus on reliable and cost-effective marine solutions
Contact Swift Marine Tech Services Pte Ltd
Looking for BilgMon 488 service or 15 ppm bilge alarm solutions in the Singapore?
Swift Marine Tech Services Pte Ltd provides:
BilgMon 488 Calibration | BilgMon 488 Troubleshooting | 15 PPM Bilge Alarm Service | OWS Service | Bilge Alarm Repair | BilgMon 488 Retrofit | Measuring Cell Replacement | Sensor Support | Marine Automation Service | Marine Instrumentation Service | Bilge Monitoring Solutions