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Oil Mist Detector
MD-SX |
Responding to the requirements of engine builders, Daihatsu has
developed the sensor type MD-SX oil mist detector, which consists of
multiple sensor units that are directly inserted through a side wall of
the crank case and fitted to each cylinder of the diesel engine; and a
controller for integrated control of these units via communication
cable.
The detector has already gone through type approval certificate tests
by major classification societies NK, LR, DNV, BV, ABS, GL, KR, CR and
CCS, and CE marking.
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Features |
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Compact size, reliable and easy maintenance |
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This detector uses a
natural diffusion system based on technology for detection of oil
mist concentrations that Daihatsu has built up over the years,
augmented with new techniques and ideas. The system requires no
sucking mechanism or drive air/piping for mist detection by the
sensor units. The further use of an optical dispersion system
makes possible detection of mist concentrations by a compact
arrangement, which contributes to greater reliability and ease of
maintenance. |
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Flexible system constitution |
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The maximum number
of detection points is 16, which means detection
at eight points in twin engines. The system configuration is made
flexible, including the location for fitting of the controller. |
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Early detection of serious engine damage |
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The controller
has been improved in terms of operating ease by the use of key
switches and liquid crystal display (LCD); it can also monitor the
overall state of the device, including the sensor units, with its
self-diagnosing function.
The detector constantly monitors the oil mist concentration in the
crank case, indicates the mist level and, if the concentration is
raised beyond a set point by the overheating of the bearings or any
other cause, issues an alarm. Accordingly, the device makes possible
early detection or prediction of what might otherwise develop
into-serious trouble not only in low-speed marine engines but also
medium-speed and high-speed diesels. |
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Specifications |
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Sensor unit |
Controller |
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Function |
Oil mist concentration
Mist level output |
Mist level indication
Alarm monitoring |
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Detection point/No. of sensor units |
1Point /1Unit |
16 Units (max.) /1 Eng
(8 Units×2 Eng.) |
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Mist detection
Detection time |
Natural diffusion system
Continuous |
Response time <=1 sec |
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Detection system
Concentration |
Optical dispersion system |
0~2.0mg/l(Deviation:0~0.5mg/l) |
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Display
Operation |
3 color LEDs:
(Power, Alarm, Failure) |
Mist level: 3-color bar-graph indication
4 color LEDs:
(Run, Pre alarm, High alarm, Failure) LCD, Key switch |
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Contact output |
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5 Points (AC125V-0.4A/DC24V-2A) |
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Power supply |
Supply from controller |
DC24V (+30%~-25%)
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Power consumption |
60 mA (max.) /1 Unit |
1.5A (max.) (Internal:0.5A) |
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Protection class |
IP55 |
IP55 |
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Weight |
350g |
4.6kg |
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Paint color |
Munsell N1.0 (Black) |
Munsell N1.0 (Black) |
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Outline
dimensions |
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Maker reserves the right to
modify specifications and/or appearance at any time without prior notice.
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