SPECS Vision — AOMD & COMD

Oil Mist Detection System (OMD)

SPECS has obtained worldwide reputation for top-quality oil mist detection for engine rooms (AOMD) and diesel engine crankcases (COMD). Type approved by all major classification societies per IACS UR M67 — the gold standard for crankcase explosion prevention.

Oil mist detection systems are mandatory safety measures for reducing the fire risk from machinery spaces, flammable oil systems, and crankcase explosions in diesel engines. Per IACS UR M67, oil mist detectors are required for engines of 2,250 kW and above or having cylinders of more than 300 mm bore.

SPECS has acquired type approvals from all major classification societies worldwide for their AOMD (atmospheric) system for engine rooms, their COMD (crankcase) system for diesel engines, and the next-generation COMD for new vessel construction.

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IACS UR M67 Compliant

Effectiveness verified per IACS Unified Requirement M67 — the mandatory standard for crankcase OMD.

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All Class Societies

Type approved by DNV, BV, LR, ABS, ClassNK, KR and all other major classification societies.

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Instantaneous Alarm

Instantaneous alarm response on oil mist detection — immediate engine protection.

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RS-485 / 422 IAS

Standard RS-485/422 interface for integration with shipboard Alarm & Monitoring Systems.

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Anti-Vibration

Robust anti-vibration construction designed for harsh marine engine environments.

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Low Maintenance

Less contaminated sensor design with highly integrated single-board for improved reliability.

Applicable Industries & Applications

🚢 Marine Engines ⛽ LNG Vessels & Tanks 🏗️ Shipbuilding Industry 🏭 Industrial Power Plants 📡 Telecommunication Facilities 🔬 Electronic Industry ⚙️ Oil & Gas Refineries 💧 HPP High-Pressure Pump Rooms

AOMD — Vision IIIA

Specs Vision Atmospheric Oil Mist Detector (AOMD)

Measures oil mist in the engine room and all spaces where oil-using machines are located. When oil mist concentration exceeds the set value, an alarm is triggered — preventing the risk of engine room fire or explosion. Recommended by MCA and IMO for atmospheric engine room protection.

SPECS Vision AOMD Vision IIIA Atmospheric Oil Mist Detector

The Atmospheric Oil Mist Detector (AOMD) is developed in SPECS Factory and can accurately detect and activate alarms if there is oil mist in a marine engine crankcase or atmosphere in closed room condition.

Oil mist can be formed by atomizing of oil spray leaked from oil lines or vaporizing of oil on hot machine surfaces. AOMD units are positioned to detect oil mist rapidly and successfully in engine rooms, oil purifier rooms, pump rooms and other high-risk spaces.

SPECS is the unique manufacturer for oil mist detectors in Korea — producing the newest version based on recent IACS standards with multi-sensor technology and remote monitoring capability.

System Components: Detector Unit Vision IIA · Multi-Sensor Remote Monitoring Unit (RMU) · Junction Box

📄 AOMD Specs Vision Technical Data 📋 AOMD Leaflet 2025

System Features — SPECS Vision AOMD

Newest Version Based on Recent IACS — latest standards compliance for new-build and retrofit vessels
Effectiveness Verified Based on M67 Rules — tested per IACS Unified Requirement M67
Superior Accuracy Verified — advanced infrared sensing for precise oil mist density measurement
Most Rigid Construction — heavy-duty casing built for harsh engine room environments
Instantaneous Response to Alarm — immediate alarm activation on threshold breach
RS-485 / 422 to IAS — standard interface to vessel's Alarm & Monitoring System
Less Contaminated Sensor Design — extended sensor life with self-cleaning architecture
Highly Integrated Single Board Design — reduced components for improved reliability
Robust Anti-Vibration Construction — MIL STD-167, MIL-S-901D vibration rated
Multi-Functional Remote Monitoring Unit (RMU) — centralized monitoring and data logging
Proven Test and Calibration Chamber — factory-tested before delivery
Access OMD System Remotely — secure remote access from anywhere worldwide

Parameter	AOMD Vision IIIA Specification
Type	Atmospheric Oil Mist Detector (AOMD)
Model	Vision IIIA (Multi-Sensor)
Detection Method	Infrared turbidity measurement
Application	Engine room, pump rooms, purifier rooms, closed machinery spaces
Communication	RS-485 / RS-422 to IAS / AMS
Power Supply	24V DC
Alarm Response	Instantaneous on threshold breach
Vibration Standard	MIL STD-167, MIL-S-901D
IACS Compliance	UR M67 verified
Classification Approval	All major classification societies
IMO Compliance	IMO MSC recommendations for machinery space fire protection
Origin	SPECS Corporation, Korea

AOMD System Diagram & Technical Specification

SPECS Vision AOMD system diagram components layout

SPECS Vision AOMD technical specification sheet

SPECS Vision AOMD technical specification chart

COMD — Vision IIIC

Specs Vision Crankcase Oil Mist Detector (COMD)

Monitors individual crankcase compartments of marine diesel engines. Detects oil vaporization rapidly with high reliability and least maintenance cost. Proven on vessels from all major engine makers worldwide — MAN, WinGD, Wärtsilä, Hyundai, Doosan, STX, CAT, Mitsubishi and more.

SPECS Vision COMD Vision IIIC Crankcase Oil Mist Detector

The Crankcase Oil Mist Detector (COMD) measures oil mist within individual engine crank chambers. An alarm is triggered to reduce the risk of engine explosion when oil mist concentration exceeds the predetermined value.

The Vision IIIC is an improved COMD system designed for marine diesel engines. It uses advanced microprocessor and infrared detection technology to continuously monitor oil mist levels within the engine crankcase — enabling early detection of potential engine malfunctions.

Installed on well-known marine engine makes worldwide:

MAN DieselWinGDWärtsilä Hyundai HHIDoosanSTX CATMitsubishiHimsen

System Components: Crankcase OMD (Vision IIIC) · Remote Monitoring Unit (Vision IIIR) · Junction Box (Vision IIIJC)

📄 COMD Technical Datasheet 🔧 COMD Spare Parts List

System Features — SPECS Vision COMD

Newest Version Based on Recent IACS — fully compliant for new-build vessels (contracts from 1 Jan 2007)
Effectiveness Verified Based on M67 Rules — IACS UR M67 type tested and approved
Superior Accuracy Verified — microprocessor + infrared for precise crankcase mist density measurement
Most Rigid Construction — self-contained, compact for critical crankcase spaces
Instantaneous Response to Alarm — immediate alarm and slow-down signal on trigger
Worldwide 24hr Support — global after-sales support including Singapore, India, UAE and more
RS-485 / 422 to IAS — AMS/IAS integration via RS-485; 24V DC power
Less Contaminated Sensor Design — extended operational life in oily crankcase environments
Highly Integrated Single Board Design — improved long-term reliability with fewer components
Robust Anti-Vibration Construction — withstands harsh engine vibration and shock
Multi-Functional RMU — Vision IIIR remote monitoring unit for centralized control room display
Proven Test and Calibration Chamber — individually factory-tested before shipment

Parameter	COMD Vision IIIC Specification
Type	Crankcase Oil Mist Detector (COMD)
Model	Vision IIIC (also Vision 5C, Vision 5X)
Detection Method	Infrared turbidity (microprocessor-based)
Monitoring	Individual crankcase compartments
Communication	RS-485 / RS-422 to AMS/IAS
Power Supply	24V DC
Remote Monitoring	Vision IIIR Remote Monitoring Unit
Junction Box	Vision IIIJC
Alarm Output	Common alarms (Mist, System) via 24V DC relay
IACS Compliance	UR M67 type approved
Classification Approval	All major classification societies
Engine Compatibility	2-stroke & 4-stroke diesel (MAN, WinGD, Wärtsilä, HHI, Doosan, STX, CAT, Mitsubishi)
Origin	SPECS Corporation, Korea

COMD System Diagram & Technical Specification

SPECS Vision COMD system features diagram

SPECS Vision COMD technical specification

SPECS Vision COMD full technical specification chart

BWMS — Bearing Wear Monitoring

Bearing Wear Monitoring System (BWMS)

Predicts bearing wear in 2-stroke marine diesel engines before conditions become critical. Provides early warning alarm and slow-down signal when unexpected problems arise with any crank-train bearing — preventing catastrophic engine damage at sea.

The BWMS is a proactive predictive maintenance tool for 2-stroke crosshead engines. It continuously monitors bearing conditions and triggers alarms well before wear reaches a critical level — giving engineers time to act before a costly breakdown.

The system monitors all major crank-train bearings — crosshead bearings, crank pin bearings and main bearings — providing early warning and slow-down signals to protect the engine and crew when unexpected problems arise.

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Crosshead Bearing

Continuous monitoring of crosshead bearing condition in 2-stroke diesel engines.

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Crank Pin Bearing

Early detection of crank pin bearing wear before critical failure condition is reached.

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Main Bearing

Real-time main bearing monitoring with alarm and slow-down signal output.

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Early Warning Alarm

Alarm triggered before conditions become critical — time for planned maintenance response.

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Slow-Down Signal

Automatic slow-down signal to engine control system in case of unexpected bearing problems.

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Trend Monitoring

Bearing condition trend data for maintenance scheduling and fleet performance analysis.

Parameter	BWMS Specification
Application	2-stroke marine crosshead diesel engines
Bearings Monitored	Crosshead, crank pin and main bearings
Alarm Type	Early warning alarm + slow-down signal
Purpose	Predictive maintenance — prevent critical bearing failure
Origin	SPECS Corporation, Korea

SEEMS — Energy Efficiency Monitoring

Ship Energy Efficiency Monitoring System (SEEMS)

Collects real-time signals for ship operation efficiency and performance. Calculates and displays EEOI & CO₂ emission values per IMO guidelines. Over 150+ real-time data points for full operational visibility and IMO CII compliance.

SEEMS is considered the most useful and practical tool for monitoring, reporting and verification of CO₂ emissions and energy efficiency of all ship types. It collects all real-time signals including efficiency and performance of ship operations, analyzes and calculates them, then stores, displays and reports all data.

Based on IMO guidelines, SEEMS calculates and displays EEOI (Energy Efficiency Operational Indicator) and CO₂ emission values, presents trend graphs over variable time periods, and generates daily, voyage and sea trial reports — enabling engineers to maintain an optimum ship maintenance schedule.

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Real-Time Data

Collects and analyzes 150+ real-time data points from all major ship systems simultaneously.

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CO₂ & EEOI

Calculates and displays EEOI and CO₂ emission values per IMO guidelines for CII compliance.

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Trend Graphs

Presents trend graphs over variable time periods for performance analysis and reporting.

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Voyage Reports

Automated daily, voyage and sea trial reports for ship managers and port state control.

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Maintenance Schedule

Enables engineers to maintain an optimum ship maintenance schedule with predictive data.

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IMO & Flag Compliant

Fully compliant with IMO MRV, EU MRV and DCS data collection system requirements.

Parameter	SEEMS Specification
Data Points	150+ real-time monitoring channels
Calculated Values	EEOI, CO₂ emissions, fuel consumption, SFOC
Reporting	Daily, voyage and sea trial reports
IMO Compliance	IMO MRV, EU MRV, DCS guidelines
Display	Trend graphs over variable time periods
Origin	SPECS Corporation, Korea

SPM — Shaft Power Meter

Shaft Power Meter (SPM)

Measures and displays shaft torque, thrust, power, RPM, rotating direction, revolutions accumulation and power transfer from main engine to propeller — continuously. Suitable for both new vessels and existing vessels in operation.

The SPECS Shaft Power Meter uses strain gauge and proximity sensor techniques to provide continuous, accurate measurement of propulsion power. It is simple to install and the measurement unit can be changed between metric and SI units — making it suitable for all vessel types globally.

As a key component for measuring ship performance and fuel/propulsion efficiency, the SPM provides the data needed for regulatory compliance under IMO EEXI requirements and ongoing CII monitoring. Easy installation on both new-build and in-service vessels means minimal downtime during fitment.

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Shaft Torque & Power

Strain gauge technology for precise shaft torque measurement — power calculated continuously.

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RPM & Direction

Measures shaft RPM, rotating direction and revolutions accumulation in real time.

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Thrust Measurement

Propeller thrust measurement for complete propulsion system performance analysis.

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Metric & SI Units

Measurement unit can be changed between metric and SI — suitable for all flag states.

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New & Existing Vessels

Easy installation on new-build and in-service vessels without drydocking.

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EEXI / IMO Compliant

Supports IMO EEXI compliance and CII data collection for carbon intensity monitoring.

📋 Reference List for TPM/SPM 📄 SPECS Vision SPM Technical Proposal

Parameter	SPM Specification
Measurement Technology	Strain gauge + proximity sensor
Measured Parameters	Torque, thrust, power, RPM, direction, rev. accumulation
Units	Metric & SI (switchable)
Installation	New-build and in-service vessels
Display	Continuous real-time readout
Regulatory	IMO EEXI / CII compliance data
Origin	SPECS Corporation, Korea

SPECS Vision
Oil Mist Detectors &
Ship Monitoring Systems

Internationally Certified OMD & Marine Monitoring

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