Oil Mist Detector
Kidde Graviner | Schaller Automation| VISATRON | Daihatsu
New product
A Marine Oil Mist Detector (OMD) is one of the most important safety monitoring systems used on large marine diesel engines. Its primary purpose is to continuously monitor the crankcase atmosphere and detect abnormal oil mist concentration that may develop from overheated bearings, friction, lubrication problems or other hot spots.
An abnormal rise in oil mist can indicate a potentially dangerous engine condition. Early detection allows the crew and engine protection system to react before conditions escalate toward serious machinery damage or a crankcase explosion.
Oil Mist Detectors are therefore widely installed on main engines and auxiliary diesel engines aboard cargo vessels, tankers, bulk carriers, container ships, offshore vessels and other commercial ships.
SM MARINE SERVICE™ supports multiple generations and brands of marine Oil Mist Detection equipment.
Below are some of the major OMD systems for which complete equipment and replacement parts can be sourced.
The Graviner MK5 Oil Mist Detector is a long-established crankcase monitoring system found on many older marine diesel-engine installations.
It monitors oil mist concentration and provides early warning when abnormal conditions develop within the engine crankcase.
For vessels that continue to operate an existing MK5 installation, replacement control equipment and legacy spare parts can be important because changing the complete OMD installation may involve additional piping, wiring and commissioning work.
Graviner MK5 Oil Mist Detector – View Product
SM MARINE SERVICE™ lists the MK5 in refurbished condition and provides dedicated technical information for the system.
The Graviner MK6 OMD is another widely encountered generation of the Graviner engine oil mist detection family.
Typical replacement requirements can involve the control panel, detector heads, electronic components, power-related parts, cables and other system components.
Graviner MK6 Oil Mist Detector Control Panel – View Product
This dedicated SM MARINE SERVICE™ page covers the MK6 control-panel/system requirement.
The Graviner MK7 Oil Mist Detector represents a later generation in the Graviner OMD family.
It is used for continuous engine crankcase monitoring and early detection of potentially hazardous oil mist conditions.
Ship owners and technical managers searching for Graviner MK7 complete systems, detector heads, electronic components or replacement parts can contact SM MARINE SERVICE™ for availability.
Graviner MK7 Oil Mist Detector – View Product
The dedicated MK7 product page provides further product and sourcing information.
VISATRON® Oil Mist Detection systems are manufactured by Schaller Automation in Germany and are extensively used for monitoring oil mist concentration in diesel and dual-fuel engine crankcases.
The VN87plus family includes VN115/87plus, VN116/87plus and VN215/87plus. Schaller's operating documentation explains that these systems continuously sample engine atmosphere and provide pre-alarm and main oil-mist alarm functions.
The VISATRON VN115/87plus monitors oil mist development across the connected crankcase sampling system.
According to Schaller's documentation, the VN115/87plus detects the development of excessive oil mist but does not identify the individual source compartment. It provides two alarm levels, with the pre-alarm activated at 70% of the configured main alarm level.
VISATRON VN115/87plus Oil Mist Detector – View Product
Further stock and product information is available on the dedicated SM MARINE SERVICE™ page.
The VISATRON VN215/87plus provides more detailed localization capability.
Schaller documentation states that its Valve Box 215 arrangement allows the detector to identify the compartment with the highest oil mist concentration. During normal operation, engine atmosphere is sampled continuously; following an oil-mist alarm, the system can perform an additional search run to locate the highest concentration.
VISATRON VN215/87plus Oil Mist Detector – View Product
The SM MARINE SERVICE™ page specifically covers VN215/87plus equipment and measuring-head requirements.
According to Schaller documentation, VN87plus systems operate from 24 VDC ±25%, have an IP54 degree of protection in the referenced approval documentation and use a suction system to continuously draw crankcase atmosphere for oil-mist measurement.
Schaller's documentation also identifies important system elements such as the measuring head, suction arrangement, valve box on applicable models, connecting box, air-jet pump and electrical interface.
Daihatsu engine installations may also use dedicated oil mist detection equipment for crankcase monitoring.
SM MARINE SERVICE™ currently has dedicated product pages for Daihatsu MD-SX and Daihatsu MD-14M OMD equipment.
The Daihatsu MD-SX Oil Mist Detector is associated with crankcase oil mist monitoring and protection of Daihatsu marine diesel-engine installations.
For existing systems, requirements may include the controller, detector components, electronic boards, cables, connectors and associated system parts.
Daihatsu MD-SX Oil Mist Detector – View Product
The SM MARINE SERVICE™ MD-SX page provides further information about this equipment.
The Daihatsu MD-14M is another Oil Mist Detector represented in the SM MARINE SERVICE™ marine-equipment inventory.
Existing Daihatsu engine installations may require complete replacement units or individual components depending on the condition of the OMD system.
DAIHATSU MD-14M Oil Mist Detector – View Product
Dedicated product information and availability are provided on the MD-14M page.
During normal diesel-engine operation, the concentration of suspended oil droplets inside the crankcase remains within expected limits.
If a bearing or another moving component begins overheating, lubricating oil contacting the hot surface can generate an increasing concentration of oil mist.
An OMD continuously monitors the crankcase atmosphere through its detector/sampling arrangement.
When the measured oil mist concentration exceeds defined limits, the system generates a warning or alarm so that appropriate engine-protection procedures can be initiated.
The exact measurement, sampling and localization method varies between OMD manufacturers and models.
An Oil Mist Detector is fundamentally an early-warning engine safety device.
Potential causes of abnormal crankcase oil mist can include:
• Bearing overheating
• Insufficient lubrication
• Abnormal friction
• Damaged moving components
• Localized hot spots
• Mechanical deterioration
Early detection can help engineers investigate the machinery condition before it develops into more serious engine damage.
Depending on brand and model, SM MARINE SERVICE™ can support sourcing of:
• Complete Oil Mist Detector
• Detector Head
• Measuring Head
• Control Unit
• Control Panel
• Display Unit
• PCB / Electronic Board
• Power Supply
• Sensor / Measuring Components
• Valve Box
• Connecting Box
• Suction Components
• Sampling Pipes
• Air Filters
• Gaskets and Seals
• Cables
• Connectors
• Internal Electronic Parts
For VISATRON VN87plus systems, Schaller's documentation and spare-parts information identifies replaceable items including complete detectors, measuring-related components, filters, gaskets and valve-box components.
Check power supply, air supply where applicable, detector condition and system connections.
Inspect the optical/measuring system, sampling path, filters, air supply and contamination condition according to the manufacturer's procedures.
Inspect electrical connections and the measuring assembly. Avoid replacing the complete system before determining whether the fault is isolated to the detector/measuring head.
Blocked or contaminated sampling pipes can affect detection performance. Inspect the complete sampling arrangement according to the manufacturer's maintenance procedure.
Check incoming power, fuses, power-supply components, internal connections and control electronics.
Check cables, connectors, alarm relay/interface wiring and the connection to the engine safety/monitoring system.
Never assume that a persistent oil mist alarm is merely an instrument fault. The engine condition must be investigated according to the engine manufacturer's and vessel's safety procedures.
Regular maintenance is critical because the OMD performs an engine-safety function.
Recommended maintenance areas include:
• Inspect sampling pipes and suction lines
• Keep measuring optics clean according to manufacturer instructions
• Inspect filters
• Check air supply where applicable
• Verify alarm operation
• Inspect cables and connectors
• Check detector heads and measuring heads
• Inspect gaskets and seals
• Carry out functional tests according to the applicable manual
• Maintain manufacturer-recommended service intervals
For VISATRON VN87plus equipment, Schaller specifically documents its suction, clean-air protection and measuring arrangements, so the applicable manufacturer manual should be followed during servicing.
SM MARINE SERVICE™ can support worldwide sourcing of:
Graviner
Schaller Automation / VISATRON
Daihatsu
Depending on stock, equipment may be available as:
New • Used • Tested Working • Refurbished • Reconditioned
For obsolete or older OMD installations, sourcing the correct compatible replacement part can allow ship owners to maintain an existing installation without unnecessary complete-system replacement.
Marine OMD systems are commonly used for:
• Main Diesel Engines
• Auxiliary Diesel Engines
• Two-Stroke Marine Engines
• Four-Stroke Marine Engines
• Diesel and applicable dual-fuel engine installations
• Cargo Ships
• Tankers
• Bulk Carriers
• Container Vessels
• Offshore Vessels
• Passenger Ships
• Merchant Vessels
They are particularly relevant to Chief Engineers, Marine Engineers, Electrical Officers, Technical Superintendents, Ship Managers, Ship Owners and Marine Spare Parts Purchasing Departments.
The correct replacement should normally be determined from the existing OMD manufacturer, exact model, engine configuration, detector arrangement, part number and system interface.
For example, a vessel equipped with Graviner MK6 should not select a different detector merely because it performs the same general OMD function.
Likewise, VISATRON VN115/87plus and VN215/87plus are not identical systems: Schaller documentation shows different sampling/localization arrangements.
When requesting a quotation, send SM MARINE SERVICE™:
Manufacturer + Model + Part Number + Quantity + Nameplate Photo + Existing Unit Photo
This helps identify the correct replacement quickly.
An Oil Mist Detector is an engine safety-monitoring device designed to detect abnormal oil mist concentration within an engine crankcase.
OMD commonly refers to Oil Mist Detector or the associated Oil Mist Detection system used for engine crankcase monitoring.
It provides early warning of abnormal crankcase conditions associated with rising oil mist concentration and potential hot spots.
SM MARINE SERVICE™ can support requirements for Graviner, VISATRON/Schaller and Daihatsu OMD equipment, along with other marine OMD requirements depending on availability.
Buy / View Graviner MK5 Oil Mist Detector
View Graviner MK6 Oil Mist Detector & Control Panel
View Graviner MK7 Oil Mist Detector
View VISATRON VN115/87plus Oil Mist Detector
View VISATRON VN215/87plus Oil Mist Detector & Measuring Head
Yes. SM MARINE SERVICE™ maintains dedicated pages for both the MD-SX and MD-14M requirements.
View Daihatsu MD-SX Oil Mist Detector
View Daihatsu MD-14M Oil Mist Detector
Yes. Used, tested working, refurbished and reconditioned OMD equipment can be sourced depending on stock.
Yes. Worldwide supply can be arranged according to equipment availability and destination.
SM MARINE SERVICE™ supports ship owners, ship managers, technical superintendents, marine service companies and purchasing departments looking for difficult-to-source Oil Mist Detectors and OMD spare parts.
Our sourcing focus includes both current and legacy marine equipment, making it possible to support vessels where complete replacement with a new-generation system may not be immediately practical.
For a quotation, provide the OMD brand, exact model, part number, quantity and clear photographs.
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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