Deckma OMD-24 Series Manuale utente

DECKMA

HAMBURG

We help to protect the Environment

I N S T R U C T I O N M A N U A L

OMD-24 Series

15 ppm Bilge Alarm

OMD-24 Series

OMD-24

Electric Valve –OMD-24 EV

Electric Valve Auto Clean –OMD-24 EVA

Auto Clean –OMD-24 A

(Optional: Manual Cleaning Unit MCU)

DECKMA

HAMBURG

Page: 1

Usage of this instruction manual

This instruction manual will guide you how to use the OMD-24 Series. The instruction

manual is split into sections. Every section handles a specific part of the OMD-24 Series.

The first section gives you general information about the safety before using and servicing

the OMD-24 Series. Please take notice on this section.

You will also find information about the construction and the installation of

OMD-24 Series. The programming mode is explained in detail at the end of the instruction

manual.

This instruction manual also contains also information about the service support and our

contact details. The symbols below will accompany for a better understanding.

Symbols



This symbol is used for giving general advices.

This symbol is used to clarify a recommendation.



This symbol is used for giving advices about servicing.

DECKMA

HAMBURG

Page: 2

IMPORTANT NOTICE

Replacement components for 15 ppm Bilge Alarms

General

All monitors in our range are inspected and tested to the related International Maritime

Organization IMO requirements at our factories prior to delivery.

In normal use, the units should operate correctly and without fault over a long period of time

requiring only small amounts of maintenance to be carried out as outlined in the instruction

manual.

Service Exchange Units

In the event of a monitor malfunction due to electrical or electronic component failure it is our

recommendation that a service exchange unit be ordered.

The defective instrument should be returned to our works within 30 days of supplying the service

exchange unit, then only the repair charge is payable. Otherwise the whole cost of a service

exchange unit becomes payable.

This procedure is by far the easiest and most cost-effective way of ensuring the monitor on board

conforms to IMO resolution MEPC.107(49).

Remark

According the MEPC.107(49) § 4.2.11 the units have to be checked at IOPP Certificate renewal

survey by the manufacturer or persons authorized by the manufacturer. Alternatively, the unit

may be replaced by a calibrated 15 ppm Bilge Alarm.

The OMD-24 Series are designed in that way, that only the Measuring Cell needs to be changed,

as these units carry the Calibration Certificate. The Calibration Certificate with the date of the last

calibration check should be retained onboard for inspection purposes.

If for some reasons the Computer Unit needs to be changed, it has to make sure, that the memory

card will remain on board for at least 18 months. The new Computer Unit will carry its own

memory card. The old card can be inserted into the new unit only for reading. Writing is only

possible with the card delivered with the new Computer Unit. For details see section 14.

Memory Card.

Warranty

Our warranty terms are 12 months after installation but maximum 18 months after delivery ex

works. The maker undertakes to remedy any defect resulting from faulty materials of

workmanship except wearing parts.

The maker's obligation is limited to the repairs or replacement of such defective parts by his own

plant or one of his authorized service stations.

The purchaser shall bear the cost and risk of transport of defective parts and repaired parts

supplied in replacement of such defective parts.

ANY DISMANTLING OR BREAKING OF A SEAL WILL VOID THE WARRANTY.

DECKMA

HAMBURG

Page: 3

Content:

Usage of this instruction manual ........................................................................................... 1

Symbols ........................................................................................................................................1

Revision ................................................................................................................................ 6

1. Introduction................................................................................................................... 7

1.1 OMD-24 ............................................................................................................................7

1.2 OMD-24 EV........................................................................................................................7

1.3 OMD-24 EVA .....................................................................................................................7

1.4 OMD-24 A .........................................................................................................................7

2. Important Notes ............................................................................................................ 8

3. Principle of operation .................................................................................................... 9

3.1 Measuring Principle...........................................................................................................9

3.2 Display Visualization..........................................................................................................9

3.3 Alarms ..............................................................................................................................9

3.4 Adjustment .....................................................................................................................10

3.4.1 Limited Adjustment Alarm Set Point ...................................................................................................10

3.5 Active Current Interface...................................................................................................10

3.6 Inputs..............................................................................................................................11

3.7 EV (Electric clean water Valve) .........................................................................................11

3.8 Automatic Cell Cleaning Device........................................................................................11

3.9 MCU (Manual Cleaning Unit)............................................................................................ 12

3.10 Features ..........................................................................................................................12

4. Specification ................................................................................................................ 13

4.1 Specification OMD-24 ......................................................................................................14

4.2 Specification OMD-24 EV .................................................................................................15

4.3 Specification OMD-24 EVA ...............................................................................................16

4.4 Specification OMD-24 A...................................................................................................17

5. Construction ................................................................................................................ 18

5.1 Construction OMD-24......................................................................................................19

5.2 Construction OMD-24 EV .................................................................................................20

5.3 Construction OMD-24 EVA ...............................................................................................21

5.4 Construction OMD-24 A...................................................................................................22

5.5 Manual Cleaning Unit (MCU)/ Automatic Cell Cleaning Device ..........................................23

DECKMA

HAMBURG

Page: 4

5.5.1 Flow rate regulation on MCU, Auto Clean System....................................................................................23

6. INSTALLATION ............................................................................................................. 24

6.1 Installation OMD-24 ........................................................................................................25

6.2 Installation OMD-24 EV ...................................................................................................26

6.3Installation OMD-24 EVA .................................................................................................27

6.4 Installation OMD-24 A ..................................................................................................... 28

7. Piping .......................................................................................................................... 29

7.1 Piping OMD-24 ................................................................................................................29

7.2 Piping OMD-24 EV ...........................................................................................................31

7.3 Piping OMD-24 EVA .........................................................................................................32

7.4 Piping OMD-24 A .............................................................................................................33

8. Cabling......................................................................................................................... 34

8.1 External Control System...................................................................................................39

9. Power Supply............................................................................................................... 40

10. Commissioning......................................................................................................... 41

10.1 Electrical and Piping.........................................................................................................41

10.2 Instrument Start-Up Sequence......................................................................................... 42

10.3 Flow rate Adjustment ......................................................................................................42

10.4 System Settings ...............................................................................................................44

10.5 Auto Clean Control Unit...................................................................................................44

11. OMD-24 Series Operating instructions...................................................................... 46

11.1 Cleaning Options .............................................................................................................47

12. Operator Maintenance............................................................................................. 48

12.1 General Test....................................................................................................................48

12.2 Normal Operation ........................................................................................................... 48

12.3 Cleaning Process..............................................................................................................49

12.4 Intensive Cleaning ...........................................................................................................49

12.5 System Test.....................................................................................................................49

12.6 Data Logger Checking ......................................................................................................50

12.7 MCU and Automatic Cell Cleaning Device.........................................................................50

12.8 Maintenance Recommendations......................................................................................51

13. Programming Mode ................................................................................................. 52

14. Memory Card ........................................................................................................... 54

DECKMA

HAMBURG

Page: 5

14.1 OMD-CR Memory Card Reader.........................................................................................55

15. Fault finding............................................................................................................. 56

15.1 Automatic Cell Cleaning Unit Fault Finding .......................................................................58

16. Calibration ............................................................................................................... 59

16.1 OMD-24 Series ................................................................................................................59

16.2 Calibration and Repeatability Check.................................................................................59

16.3 Function Test at Classification Survey and Port State Control ............................................60

17. OMD-24 Series with 5 ppm Alarm Set Point .............................................................. 61

18. Spare Parts............................................................................................................... 62

18.1 Recommended On Board Spares ...................................................................................... 64

19. Optional Equipment ................................................................................................. 65

20. REMARKS................................................................................................................. 66

21. Appendix I................................................................................................................ 67

21.1 Navigation Buttons..........................................................................................................67

21.2 Functional Buttons .......................................................................................................... 69

21.2.1 Functional Button “TEST” ...............................................................................................................69

21.2.2 Functional Button “ON”..................................................................................................................71

21.2.3 Functional Buttons AL1/ AL2/ SET ..................................................................................................73

21.2.4 Functional Button “SYS”..................................................................................................................76

21.3 Data Logger Operation Buttons........................................................................................ 77

22. Appendix III.............................................................................................................. 79

22.1 ALARMS ..........................................................................................................................79

23. Appendix IV. ............................................................................................................ 80

23.1 Operator Maintenance Quick Checklist ............................................................................80

24. Appendix V .............................................................................................................. 81

24.1 Servicing and Cleaning Manual.........................................................................................81

Index................................................................................................................................... 94

List of Figures ...................................................................................................................... 95

Sales & Service Locations ............................................................................................ 96

Notes: ................................................................................................................................. 97

Certificates.......................................................................................................................... 98

DECKMA

HAMBURG

Page: 6

Revision

Document-Name

Revision No.

Notation

Date

OMD-24 Series

R00_20160708

Temporarily

Instruction Manual

15.11.2017

DECKMA

HAMBURG

Page: 7

1. Introduction

The OMD-24 Series Bilge Alarm Units have been designed specifically for use in

conjunction with 15 ppm oil-water separator units and have a specification and

performance which exceeds the requirements of the International Maritime Organization

IMO specifications for 15 ppm Bilge Alarms contained in Resolution MEPC.107 (49).

The units are supplied with 2 works-adjusted alarms at 15 ppm. Set points from 1 ppm to

15 ppm are possible and can be adjusted on site at any time by using the buttons at the

front panel.

If an alarm set point is exceeded, the alarms are visible at the front panel and the

appropriate relays are switched. In case of malfunction the “SYS LED” at the front panel

will change from blinking green to permanent red.

For the data logging function, the unit requires a status input from the separator.

A 0(4) - 20 mA signal output (equal to 0 - 30 ppm) is available for driving a recorder or

external meter.

By request the OMD-24 Series are also available with 5 ppm alarm set point. Additionally,

instrument versions equipped with a Measuring Cell Cleaning Unit or an Automatic Cell

Cleaning Device are available.

1.1 OMD-24

The OMD-24 is the basic version of the OMD-24 Series. It is equipped with a Clean Water

Handle and a Sample Handle to switch from sample stream to clean water.

1.2 OMD-24 EV

The OMD-24 EV is designed with an Electric Switchover Valve to switch the instrument

from sample stream to supply of clean, oil free water. The instrument will switch over to

alarm condition, but will also continue to display the measurement result. The Electric

Switchover Valve also allows remote flushing.

1.3 OMD-24 EVA

The OMD-24 EVA is fitted with an Electric Switchover Valve and an Automatic Cell

Cleaning Device.

1.4 OMD-24 A

The OMD-24 A is prepared with an Automatic Cell Cleaning Device for Auto Clean

operation.

DECKMA

HAMBURG

Page: 8

2. Important Notes

a) This equipment must be installed and operated in strict accordance with the

instructions contained in this instruction manual. Failure to do so will impair the

protection provided.

b) Installation and servicing must be undertaken by a competent and suitably skilled

person.

c) The equipment must be connected to the ground according relevant requirements.

d) The unit must be isolated from the electrical supply before any maintenance of the

equipment is attempted.

e) All national or local codes of practice or regulations must be verifying and, where

applicable, are deemed to take precedence over any directive or information

contained in this instruction manual.

f) In case of freezing conditions, the Measuring Cell should be emptied completely.

Some components mentioned in this instruction manual may not be present on the

instrument on site, and/or the instrument may have additional components.

g) Technical specifications are subject to change without notification.

h) If uncertain how to proceed, contact the maker.

DECKMA

HAMBURG

Page: 9

3. Principle of operation

3.1 Measuring Principle

An optical sensor array measures a combination of light scattered and absorbed by oil

droplets in the sample stream. The sensor signals are processed by a microprocessor to

produce linearized output.

If an alarm (set point form 1 ppm to 15 ppm) occurs, the two oil alarm relays are activated

after the adjusted time delay.

The microprocessor continuously monitors the condition of the sensor components and

associated electronics to ensure that calibration accuracy is maintained over time and

extremes of environmental conditions.

3.2 Display Visualization

The display visualizes the oil content status of the units. Using the buttons, it is also

possible to see information about the settings.

3.3 Alarms

The units contain two independent oil alarm circuits. From the manufacturing both alarms

are set to 15 ppm (according IMO). The set points can be changed according to the

requirements on site, to any point between 1 ppm and 15 ppm. An alarm point setting

above 15 ppm is not possible. The adjustment can be done in the programming mode as

described in the appendix (See section 21.2.3 Functional Buttons AL1/ AL2/ SET).

Both alarm circuits are also related to an alarm LED on the front panel.

Additional to the alarm LEDs each alarm circuit is equipped with a relay with potential

free alarm contacts. These contacts can be used for external processing of the signal or

for control of further functions. The alarm circuits contain two independent alarm delays,

which can be set separately.

In case of malfunction the “SYS LED”will indicate some type of internal fault of the unit.

This LED is flashing green in normal conditions and is red in alarm conditions.

If a malfunction or failure of the power supply occurs, relays (both alarm relays) will switch

to alarm condition. (See Section 22. Appendix III. for an easily understandable example).

If the unit is off, both relays will be in alarm condition.

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