MSSC GDMS-OMD14 Manual de usuario
GDMS-OMD14®
Part No.: 2 914 00 0000
Release: 160623
(revision 160704)
Marschallstraße 4 • 66606 St. Wendel • Germany
Tel. +49 6851 9127970
eMail: [email protected] • Web: www.mss-hx.com
MSS AG
Declaration of Conformity
We
Marschallstraße 4
66606 St. Wendel
Germany
Tel.: +49 6851 9127970
declare on our own responsibility, that the products
Kind of equipment:
Type - designations:
are in compliance with following norms:
66606 St. Wendel, Germany, 2016 June 23
!
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!
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It is recommended to read this manual before commencing the repair, assembly
or commissioning of the oil mist detector system!
The manufacturer’s warranty will become void if these instructions are
not followed!
Unless notied, these operation instructions are applicable for:
GDMS-OMD14
`
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1. System Description....................................................................... 1.1
2. Installation .................................................................................... 2.1
3. Commissioning ............................................................................. 3.1
4. Performance / Maintenance Tests ................................................ 4.1
5. Troubleshooting ............................................................................ 5.1
6. Repair ........................................................................................... 6.1
7. Notes ............................................................................................ 7.1
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1. System Description....................................................................... 1.1
1.1. Components .............................................................................................1.1
1.1.1. GDMS-OMD14 Principle ...................................................................1.1
1.1.2. GDMS-OMD14 - Delivered Items .....................................................1.4
1.1.3. GDMS-OMD14 - System Components .............................................1.5
1.1.3.1. GDMS-OMD14 Evaluator ..........................................................1.5
1.1.3.2. Connectors and pin-out of the GDMS-OMD14 Evaluator ..........1.8
1.1.3.3. GDMS-OMD14 Sensor and SOPS ............................................1.9
1.1.3.4. Technical Data of GDMS-OMD14 Sensor and Evaluator ........1.11
1.1.4. Intended Purpose ............................................................................1.13
1.1.5. Materials Included ...........................................................................1.14
2. Installation .................................................................................... 2.1
2.1. General ....................................................................................................2.1
2.2. Installation Position ..................................................................................2.2
2.3. Wiring Diagram ........................................................................................2.3
3. Commissioning ............................................................................. 3.1
3.1. Pre-Commissioning Checks .....................................................................3.1
3.2. Data Sampling ..........................................................................................3.1
3.3. Alarm Setting and Triggering ....................................................................3.1
3.3.1. Alarm Resetting .................................................................................3.2
3.4. Settings & Parameters / Using the Evaluator ...........................................3.3
3.4.1. Basic Usage of the Evaluator ............................................................3.3
3.4.2. How to change a value .....................................................................3.4
3.4.3. Menu Screen Overview .....................................................................3.7
4. Performance / Maintenance Tests ................................................ 4.1
4.1. Function Test ............................................................................................4.1
5. Troubleshooting ............................................................................ 5.1
5.1. Failure in GDMS-OMD14 Sensors ...........................................................5.1
5.2. Communication Failure ............................................................................5.3
5.3. Evaluator Failure ......................................................................................5.4
5.4. EEprom Parameters Failure .....................................................................5.4
6. Repair ........................................................................................... 6.1
7. Notes ............................................................................................ 7.1
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The is an advanced
oil mist detection system especially
constructed to meet the requirements
of large diesel and gas engines, like
ship engines or power plant engines.
While developing GDMS-OMD14
MSS AG has used the latest technical
knowledge and practical experience.
The issue of highly ignitable oil mist
produced when lubricants or fuel come
in contact with hot surfaces within the
engine has become one of the most
signicant risks for engine builders
and operators. Mist concentration of
50 mg/l and higher is sufcient for an
explosion to occur, resulting in large-
scaled engine damages and in severe
cases in the loss of lives. The presence
of oil mist inside the engine can also
indicate a damage of sliding surfaces,
because the lubricant lm can vapour in
areas where moving parts begin to rub against each other.
The main topics of oil mist detection are:
1. Prevention of larger damages in engines. If the oil mist is detected early, minimal
maintenance and repair works are often sufcient to solve the problem, allowing
to avoid high repair- and breakdown costs for the engine.
2. Protection of the engine against explosion. Before the concentration of oil mist
reaches the LEL, Lower Explosion Level (50 mg/l), the oil mist detector will trigger
an alarm.
GDMS-OMD14 is also capable of detecting water vapour. Due to water vapour,
corrosion on major parts inside the engine may occur which will damage the engine.
Oil mist detection systems are also part of rules applied world-wide which are
administered by the IACS, the International Association of Classication Society.
These rules are called UR, Unied Requirements, and oil mist detection systems
are part of UR M10 and UR M67. These Unied Requirements are realized and
used in the national rules of the Classication Societies, like the German Lloyd.
1 Evaluator
for up to 16
Sensors
1 - 16
Sensors
Inside the
engine
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Based on a widely-used principle of light measurement, GDMS-OMD14 does not
have the disadvantages of some older OMD systems. The GDMS-OMD14 is a pipe-
free system, with sensors mounted directly at the engine wall, it allows quick and
exact measurement of oil mist concentration in each engine compartment. A local
control device, the GDMS-OMD14 Evaluator, processes and displays measurement
data received from the sensors. The data can also be monitored on a computer
using the interfaces of the Evaluator.
The light measurement can be performed in two different ways:
1. : Light emitted by a light source (LED) passes through the
measuring section and is measured by a semi-conductor receiver diode. The
wave length of the light can be between 600nm and 960nm. Oil mist reects
and refracts light, therefore lowering the intensity that can be detected by the
receiver. The concentration of oil mist in the measuring section correlates
to the intensity of light detected by the receiver. This measuring principle is
employed by GDMS-OMD14.
2. : Light of a LED is emitted into a measuring section and the
light reecting on the mist is measured via an optical semi-conductor. The
extent of the oil mist concentration in the measuring section correlates to the
reection on the mist.
The GDMS-OMD14 Evaluator as well as the optional PC monitoring software have
a warning system which allows to raise an alarm when the measured data indicates
high oil mist concentration in the engine.
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