Oil Mist Detector
Daihatsu Diesel Mfg. Co., Ltd.
New product
Title
Daihatsu MD-SX Oil Mist Sensor | Marine Oil Mist Detector Sensor | Main Engine OMD Sensor | SM MARINE SERVICE™
Description
The Daihatsu MD-SX Oil Mist Sensor is an intelligent crankcase oil mist monitoring sensor designed to detect abnormal oil mist concentrations inside marine diesel engine crankcases. Continuous monitoring helps protect the engine from overheating, bearing failures, and potential crankcase explosions by providing early warning before dangerous conditions develop.
The product shown in your photographs is clearly identified as:
The MD-SX sensor is installed directly on the engine crankcase and communicates with the vessel's Oil Mist Detection (OMD) system to provide continuous condition monitoring.
Throughout our marine automation projects, SM MARINE SERVICE™ supports ship owners, ship managers, and marine engineers by supplying genuine, reconditioned, and fully tested Daihatsu engine monitoring equipment, spare parts, repair services, and worldwide technical support.
Manufacturer: Daihatsu Diesel MFG. Co., Ltd.
Country of Origin: Japan
Model: MD-SX
Equipment Type: Oil Mist Sensor
Power Supply: DC 24V, 60 mA
Marine Application: Main Engine Crankcase Oil Mist Detection System
The MD-SX Oil Mist Sensor continuously measures the concentration of oil mist inside each crankcase compartment of a marine diesel engine.
If the oil mist concentration rises above the preset safety level due to bearing overheating, lubrication failure, or excessive friction, the sensor immediately sends a signal to the Oil Mist Detection System, allowing engineers to investigate the problem before serious engine damage occurs.
This early-warning function is a critical safety feature required on many medium-speed marine diesel engines.
Marine engineers frequently search using different names such as:
Including these keyword variations helps engineers worldwide find SM MARINE SERVICE™ when searching for replacement sensors, repair services, or spare parts.
For Daihatsu MD-SX Oil Mist Sensors, oil mist detection systems, engine safety equipment, spare parts, repair services, calibration, and worldwide supply:
Website: https://www.smmarineservice.com
WhatsApp: +8801818929292
Marketing Contact: Nazmul Hasan Bhuiyan
The Daihatsu MD-SX Oil Mist Sensor is an intelligent optical sensing device designed for continuous crankcase monitoring on marine diesel engines. Its major components include:
These components continuously monitor crankcase conditions and transmit oil mist concentration data to the Oil Mist Detection (OMD) controller.
The Daihatsu MD-SX Oil Mist Sensor is installed on medium-speed marine diesel engines operating in commercial and offshore vessels.
Typical applications include:
Typical vessel types:
The sensor forms an essential part of the vessel's Oil Mist Detection System (OMD), helping prevent crankcase explosions and catastrophic engine failures.
| Problem | Possible Cause | Recommended Solution |
|---|---|---|
| Power LED OFF | No 24VDC supply | Check power source, fuse, and wiring |
| Failure LED ON | Internal electronic fault | Perform diagnostics and replace the sensor if required |
| Continuous Alarm | Excessive oil mist concentration | Inspect bearings, lubrication system, and crankcase condition |
| False Alarm | Dirty optical chamber | Clean the sensing chamber following the service manual |
| Communication Failure | Connector or cable problem | Inspect connectors and wiring harness |
| Unstable Readings | Sensor contamination or vibration | Clean the sensor and verify installation |
| No Response During Test | Internal processor or sensing element fault | Test the sensor using approved procedures and replace if necessary |
Proper troubleshooting should always be performed before replacing the complete sensor assembly.
To maintain optimum performance:
Routine preventive maintenance improves detection accuracy and extends sensor service life.
The MD-SX Oil Mist Sensor remains widely used because it provides fast, reliable detection of abnormal crankcase oil mist before dangerous conditions develop.
Its advantages include:
Many vessels continue using the MD-SX because replacing an individual sensor is far more economical than upgrading an entire oil mist detection system.
At SM MARINE SERVICE™, we support ship owners and marine engineers by supplying tested replacement sensors, repair services, spare parts, and technical assistance for Daihatsu engine safety systems.
The MD-SX is an electronic Oil Mist Sensor used to continuously monitor crankcase oil mist concentration on marine diesel engines.
It provides an early warning of overheating bearings, lubrication failures, or abnormal crankcase conditions that could lead to severe engine damage or a crankcase explosion.
The sensor operates on 24 VDC with a nominal current consumption of approximately 60 mA, as indicated on the product label.
Depending on the fault, cleaning, connector replacement, or electronic repair may be possible. If the sensing element is damaged, replacement is generally recommended.
Yes. We supply new, reconditioned, and fully tested Daihatsu MD-SX Oil Mist Sensors, replacement parts, repair services, calibration support, and worldwide shipping.
SM MARINE SERVICE™ can assist in sourcing or supplying:
The Daihatsu MD-SX Oil Mist Sensor is a marine-grade optical sensor designed to detect abnormal oil mist concentrations inside diesel engine crankcases. By providing continuous monitoring and rapid alarm generation, it helps protect engines against bearing failures, lubrication problems, and crankcase explosions, making it an essential component of modern marine engine safety systems.
For installation, wiring diagrams, maintenance intervals, cleaning procedures, calibration, diagnostics, and alarm testing, engineers should consult the official Daihatsu MD-SX Oil Mist Detection System Manual, the engine manufacturer's maintenance manual, and vessel-specific technical documentation.
We Supply:
Bangladesh Office
Samir Market, DT Road, Beside CDA Market, Pahartali, Chattogram, Bangladesh
China Warehouse & Support Center
Shanghai, China
https://www.smmarineservice.com
Email: info@smmarineservice.com
WhatsApp: +8801818929292
Marketing Contact: Nazmul Hasan Bhuiyan
SM MARINE SERVICE™ specializes in supplying Daihatsu MD-SX Oil Mist Sensors, Oil Mist Detection (OMD) systems, optical sensing units, controller modules, engine safety equipment, PCB repair, spare parts, calibration support, and worldwide technical services for ship owners, ship management companies, shipyards, offshore operators, and marine engineers worldwide.
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