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Compact Oil Mist Detector (MEV283)

The Dr. E. Horn Oil Mist Detector is a compact system, which can detect even the smallest changes in the oil concentration and is connected to the vessel’s automation security system. Moreover, this system can be retrofitted and mounted directly on the pipes for crankcase ventilation. Thus, no additional pipping is required in the assembly.  

This system benefits you because of the:

  • Compact unit size
  • Long-term usage
  • Simple installation on breather outlet, no drilling of the engine required
  • No need for artificial suction
  • Option to have a crankcase pressure sensor
  • Retrofit service available
  • Cost-effective solution.

We deliver directly and globally to end-users, agents, and resellers.
Contact us at marine@insatech.com.

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More than 20.000 systems installed worldwide

The oil mist detectors in the MEV283 series can easily and at low costs be installed on various engines on the crankcase breather. As the system is mounted directly on the pipes, no additional pipping is required in the assembly.

Furthermore, the detectors are available with or without an add-on to measure the pressure in the crankcase. No matter what, the oil mist concentration and the optional oil pressure in the crankcase are measured against the limits, which are set and approved by the machine manufacturer.

If the measurement of the oil mist concentration or oil pressure is above the limits the system will give a signal about the operative operation with either a pre-alarm, pressure alarm, or a main alarm. You can read more about the alarm on the ODM here.

As a standard, you are getting a 4-20mA signal for the ODM to give a signal output about the oil mist concentration and crankcase pressure. Moreover, you have the options of Ethernet and CAN bus versions available as well.

Additionally, the method of measuring with an optical sensor, as well as how the system is installed makes spare parts like pumps, filters, and such unnecessary.  

OBS: The equipment can be installed with a redundant 24V to meet any demand for an independent supply of battery.

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Easy and Cost-effective Retrofitting

The Oil Mist Detector from Dr. E. Horn, type MEV283, is very straightforward to retrofit because it only must be fitted into the vent line with 2 flanges. This means that all crankcase compartments of the engine can be monitored with just one device.

Thus, there is no need to:

  • Lay cables or pipes on the engine housing
  • Drilling holes in the drive flaps
  • Oil drops will not be thrown off the crankshaft and cause false alarms.

Moreover, the simple design and few components of the MEV 283 make it very easy to maintain, as well as highly reliable.

Exactly what you need? Contact us here

Typical applications

The Oil Mist Detector can be used in various settings including:

  • 4-stroke diesel engines
  • Slow/ middle/ high-speed engines
  • Used by major engine manufacturers worldwide
  • Version for hazardous application areas available.

The Oil Mist Detector is, thus, highly applicable also in the maritime industry.

Get more information here

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Advantages (compared to competitors)

The function of the Oil Mist Detector is much more sensitive than other systems as it is mounted at the top of the engine. Thus, the thermal oil mist needs to come up to the single detection point.

Moreover, you have several advantages in the Oil Mist Detector from HORN compared to the competitors. The ODM is mounted at the breather outlet of an engine, and this is done with good reason as it gives you the following benefits:

  • Detects problems in the gear train
  • Detects problems with the turbocharger
  • Detects much faster than other systems the thermal oil mist from the first cylinder’s systems (less than approx.10sec -> tested)
  • Is more sensitive than competitors’ systems as lower shutdown limits are set (less than 0,5% LEL)
  • Has a similar reaction time to competitor systems for the last cylinder
  • Has no problems with load changes and no false alarms.
  • Extremely cost-effective.

Moreover, all competitors are working with compartment-specific sensors. This means, that they place a sensor in each crankcase compartment. In this case, the sensors are sensitive to oil drops that are thrown off the crankshaft.

Or they pull in air from each compartment and evaluate it in a central unit. Then the signals can be partially delayed, and the suction blowers often fail because they are oil-laden. Instead of suction fans, an air-driven ejector can also be used. This is reliable but consumes a lot of air, thus, being expensive for you.

All these systems also have a high cost for piping, wiring, and installation because they consist of many individual parts.

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Class approvals

The oil mist detectors in the MEV283 series have all the following class approvals:

  • RINa
  • CCS
  • BV
  • ABS
  • LRS
  • DNV GL
  • NKK

Furthermore, the ODM has withstood the EMS test, UR M67 test, as well as the UR M10 test.

Need our help? Contact us now.

Support various engine manufacturers

The Oil Mist Detector is available for engines from various manufacturers including:

  • MAN and licensed
  • HHI
  • STX
  • GE
  • MaK/Caterpillar
  • Wärtsilä
  • ABC
  • ZGPT Diesel
  • HND  (HeNan Diesel Engine)
  • CME (ZhengJiang)
  • SXD (ShanXi Diesel)
  • Niigata
  • Isotta Fraschini
  • Cummins
  • Weichai
  • And others.

Exactly what you need? Contact us here

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The ODM in the Marine Engine

The oil mist detectors in the MEV283 series have all the relevant class approvals for marine use.

Furthermore, the ODM has significantly decreased the number of ship fires and contributed to offshore safety because the oil mist detectors act as a safety alarm. This is important as the oil mist can ignite at even low temperatures and, thus, cause severe damage like engine room fires.

Did you know the ODM is a requirement to have as well? On marine engines with an output of 2,250 kW or more, you are required to have an ODM on your engine to protect both your vessel, but also your crew.

Does it match your need - contact us here

The function of the compact ODM

The compact ODM from HORN can meet the demand for an independent supply of battery and main supply of the classifications because it is available with redundant 24V.

An ‘engine-running’-signal can be used as input from the motor side to operate the system. As the oil mist detectors monitor the actual oil mist concentration and crankcase pressure a galvanic isolated analog signal output 4-20 mA is available for each of the two measured values.

You can simply connect to a monitoring and safety system, as the detector transmits the operating states:

  • Ready
  • Pre-alarm
  • Pressure alarm
  • Main alarm.

Read more about the alarms here.

Moreover, there is a configurable reserve relay; Ethernet or CAN bus interfaces can be used for data exchange of operational data, as well as operational parameters.

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Customized design for you

Each application of the ODM will be checked individually by a FE-simulation of the gas flow rate. Moreover, the ODM tubing will be designed according to the given engine constraints, as well as theoretical considerations will be taken into account.

Additionally, the specific engine parameters will be calculated and transferred into the software system code for an easy function.

Do you have any questions? Contact us

Let the alarm help you

As mentioned earlier, the Oil Mist detector from HORN is acting as a safety alarm for the crew onboard the vessel. If the measurement of the oil mist concentration or oil pressure is above the limits the system will give a signal about the operative operation with either a:

  • Pre-alarm
  • Pressure alarm
  • Main alarm.
  • Thus, the crew can act accordingly.

Furthermore, you easily connect to a monitoring and safety system, as the detector transmits the above-mentioned operating states, which makes it even easier to monitor and rely on the highly sensitive system to react in case the oil mist ignites and causes severe damage like engine room fires.

Exactly what you need? Contact us here

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Spare Part List for the Oil Mist Detector
506 121

Receiver
506 122

Transmitter
506 1947

O-rings for transmitter & receiver
ZUG00392

Pressure sensor
506 282

Smoke test cartridge
Ordering information, MEV281
W20
QU700

MEV283 + Adapter set
507 105

Cable (5 x 1,5mm2)
507 178

Cable (7 x 0,75mm2)
W26
506 1702

MEV283 + Adapter set
516 1090

Cable (5 x 1,5mm2)
516 1087

Cable (7 x 0,75mm2)
W32
506 028

MEV283 + Adapter set
516 684

Cable (5 x 1,5mm2)
516 677

Cable (7 x 0,75mm2)
W34
506 028

MEV283 + Adapter set
516 065

Cable (5 x 1,5mm2)
516 677

Cable (7 x 0,75mm2)
MEV283 Oli Mist Detector

Replacement of MEV281 & MEV282

A new version of oil mist detector has been introduced, the MEV283.

This will replace the previous versions MEV281 and MEV282 as a spare part. The MEV282 can be replaced by MEV283 with some minor modifications. When replacing MEV281 with MEV283 additional parts are also needed - Contact us for more information

The oil mist detector of the new design (MEV283) will automatically be delivered as spare part when the ordering details in the engine specific spare part catalogue are used. When inquiring, please specify the engine serial number(s) and the part number(s).

Worldwide Delivery – Contact Our Team

From Failure Prevention to Performance Optimization

Yesterday’s challenges were about preventing failures - today, the focus is on higher standards. With smaller crews, preventive maintenance is more critical than ever, while predictive maintenance relies on standardized data exchange across automation layers. 

Enhance this by integrating multiple measurement methods, ensuring higher data quality and faster response times. These monitoring systems use multiple microcontrollers to separate collected and transmitted data, strengthening cybersecurity.

Looking for something else? See our selection of safety systems from HORN:

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FAQ

Insatech Medarbejdere Website MSR
For technical questions

Martin Søvind Jensen

Tel: +45 2761 4502

Email: Martin.Sovind@insatech.com

Write to Martin

Insatech Medarbejdere Website ASMI
For commercial inquiries

Astrid Mihut

Tel.: +45 5537 2095

Email: Marine@insatech.com

 

Contact us now

We Deliver Directly to End Customers, Resellers, and Agents – Globally

At Insatech, we are proud to offer our high-quality products to all customers worldwide. Whether you’re an end customer, a reseller, or an agent, you can purchase directly from us.

By choosing us, you gain direct access to all our products, eliminating the need for intermediaries. Our global distribution possibilities ensure fast and reliable delivery to your doorstep, wherever you are.

We strive to make it easy for you as an end consumer to find the products you are looking for while supporting agents and resellers looking to grow their business. Whether you’re buying for your use or resale, we’re here to meet your needs.

Discover how simple it is to work directly with a trusted global distributor – shop with confidence at Insatech today!

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Power supply

2 x 24V DC -25/+30%, ripple ≤ 5%, automatic fuse
Power consumption

approx. 25W
Operating temperature

-20 ... +85 °C
Storage temperature

-20 ... +85 °C
Relative humidity

<90 %, non-condensing
Protection acc. DIN 60529

Monitoring box IP 65, Optical sensors IP 67
Terminals

Conductor cross section 0.14 ... 1.5mm2
Housing material

Tube element steel, monitoring box and optic sensors aluminum
Weight

Monitoring box approx. 1.3 kg, engine specific tube element approx. 5 ... 22 kg
EMS-standard

Generics no. 55016 and 55022, Safety rules acc. EN 61000-4, -6, Rules for type approval: DNVGL

 
Certificates
  • DNVGL
  • ABS
  • LR
  • RINE
  • BC

 
External Input: Engine-Signal (On/ Off)

By using a voltage signal or as input contact. Alternative: signal can be set by CAN
Crankcase pressure

Burden max. 500R
Oil mist

Burden max. 500R
Linearity

max. ± 0,25% of final value
Reaction time

Approx. 300 ms
1x Alarm/ Trip- Relay

Mechanical, NO/ NC, free programmable
Max. switching power

60W, 125 VA
Max. switching voltage

220 VDC, 250 VAC
Max. switching current

2A DC/AC
Exp. Life/ min. operations

1,000,000
Contact material

gold-plated silver
1x System-Error relay

Self-monitored PhotoMOS-relay, short-circuit protected
3x Status-Message relays

PhotoMOS-relay, short-circuit protected, free confingurable (Pre-alarm, Pressure alarm, Reserve)
Max. switching current

500 mA
Max. switching voltage

7 ... 60V AC/DC
Ethernet

For display and parameter settings galvanic isolated
Link speed

max. 100 Mbit/s
CAN

Galvanic isolated
Protocol

CANopen, J1939
Adressing (Node ID)

Adjustable 1 ... 127
Transmission rate

Adjustable 20 kBaud ... 1 MBaud
  • Data Sheet - Oil Mist Detector - HORN
    English | pdf
  • Brochure - Oil Mist Detector - HORN
    English | pdf
  • Operation Instruction - Oil Mist Detector - HORN
    English | pdf
  • Article - Installation Example - Oil Mist Detector - HORN
    English | pdf

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