Bilge Alarm Monitor OMD 11

8/10/2019 Bilge Alarm Monitor OMD 11

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Appendix 3 - Bilge Alarm Monitor OMD 11 1. Edition V301110002 Page 1

Water Technology * Bremen * Germany P. Gross Issue: 01.06.01

Operating and Maintenance Instructions

Bilge Alarm Monitor OMD 11

OIL MONITOR OMD-11

Water TechnologyRWO

SYSTEM FAULT

POWER ON

ppmOIL ALARM 1

OIL ALARM 2

1 5 p p m O i l C o n t e n t A l a r m M o n i t o r

RWORWORWORWOWater TechnologyLeerkmpe 3 D-28259 Bremen Germany Tel. +49-421-537050 Fax +49-421-5370540

e-mai: [email protected] http://www.rwo.deA member of the Sterling Fluid Systems Group


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T a b l e o f C o n t e n t sPage

1 Monitor description 31.1 Introduction 31.2 Scattered light measurement method 41.3 Design of the Monitor OMD 11 5

2 Technical Specifications 6

3 Installationof Monitor OMD 11 73.1 With an RWO oily water separator of 0.1 or 0.25 m3/h capacity 73.2 With an RWO oily water separator from 0.5 to 10 m3/hcapacity 7

4 Operation 84.1 Important notes 84.2 Commissioning 8

4.2.1 Connections 84.2.2 Functional tests 9

4.3 Alarm levels 94.4 Alarm set points and time delay 94.5 Setting alarm levels and time delays 104.6 Recorder 10

5 Piping connections 115.1 With an RWO oily water separator of 0.1 or 0.25 m3/h capacity 115.2 With an RWO oily water separator from 0.5 to 10 m3/hcapacity 12

6 Electrical connections 136.1 Warning 136.2 With an RWO oily water separator of 0.1 or 0.25 m3/h capacity 136.3 With an RWO oily water separator from 0.5 to 10 m3/hcapacity 146.4 Wiring plan 14

7 Monitor operation 157.1 With an RWO oily water separator of 0.1 or 0.25 m3/h capacity 157.2 With an RWO oily water separator from 0.5 to 10 m3/hcapacity 157.3 Before commissioning 157.4 Before each start 157.5 Monitoring operation and alarm events during operation 16

7.5.1 When water containing oil flows through the device 167.5.2 If the oil concentration should exceed 15 ppm 16

8 Storage under frost condi tions 16

9 Maintenance 16

10 Troubleshooting 17

10.1 Fault finding 1710.2 Sample cell tube replacement 1710.3 Replacement of the PCB 1810.4 Calibration 20

11 Spare parts 2111.1 Drawing of spare parts positions 2111.2 Spare parts list 2111.3 Exchange parts service 22

11.3.1 General 2211.3.2 exchange equipment service 2211.3.3 Exchange of electronic components 22


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1 Monitor description

1.1 Monitor description

The OMD-11 Bilge Alarm Unit has been designed specifically for use in conjunction with15 ppm oil-water separator units and has a specification and performance which meets

the requirements of the IMO (International Maritime Organisation) specifications for BilgeAlarm Units contained in Resolution MEPC. 60 (33).The unit is supplied with 2 works-adjusted alarms at 15 ppm. Other set points (10 ppm or5 ppm) are possible and can be adjusted on site at any time by using the buttons at thefront panel.If an alarm set point is exceeded, the alarms are visible at the front panel and the appro-priate relays are switched.Furthermore a 0(4) - 20 mA (equal to 0 - 30 ppm) signal output is available for driving a re-corder or external meter. The connection is done with an optional available adapter.The water sample is taken from the flowing water upstream of an orifice.The following National IMO-type test certificates in accordance with MEPC. 60(33) areavailable, issued by the national authorities of the countries listed below.

The list is an interim one and necessarily incomplete, as further national certification hasbeen applied for.

Country National Authority Country National Authority

Germany SEE BERUFSGENOSSENSCHAFT /GERMANISCHER LLOYD

CanadaDEPARTMENT OF TRANSPORTCANADA SAFETY AND

SECURITY MARINE SAFETY

Belgium MINISTERIE VAN VERKEEREN INFRASTRUCTUUR

Italy MINISTERO DEL LAMBIENTE

England MSA MARINE SAFETY AGENCYC/O GERMANISCHER LLOYD

P.R. China REGISTER OF SHIPPING OF THEPEOPLES REPUBLIC OF CHINA

Finland FINNISH MARITIMEADMINISTRATION

Danmark DANISH MARITIME AUTHORITY

France MINISTRE DE I`EQUIPEMENT DESTRANSPORT ET DU LOGEMENT

Poland POLSKI REJESTR STATKOW

NorwaySJFARTSDIREKTORATETNORWEGIAN MARITIMEDIRECTORATE

USA U. S. DEPARTMENT OF TRANSPOR-TATION UNITED STATES COASTGUARD

RussiaRUSSIAN MARITIME REGISTEROF SHIPPING

Europa MED-EC Conformity

TheNetherlands

MINISTERIE VAN VERKEER ENWATERSTRAAT; THE HEAD OF THENETHERLANDS SHIPPING

INSPEKTORATE

Sweden SWEDISH MARITIMEADMINISTRATION

Spain MINISTERIO DE FOMENTO


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1.2 Scattered light measuring method

Several optical sensors measure a combination of light scattered and absorbed by oildroplets in the sample stream. The sensor signals are then processed by a microproces-sor to produce a linearised output.If an alarm (works set point 15 ppm) occurs, the two oil alarm relays are activated after

the (adjustable) time delay.A self-diagnosis is integrated in the monitor for the components of the sensor and the evaluati-on circuitry.The microprocessor continuously monitors the condition of the sensor components andassociated electronics to ensure that calibration accuracy is maintained over time and ex-tremes of environmental conditions.

The diagram below shows the principle of scattered light measuring.

IR LED

reference beamlight receiver

scatteredlight receiver

light emitter

oil particles

measuring cell tube

This measuring principle is the most frequently used method for the continuous meas-urement of oil in water and has proved itself in practice.


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1.3 Design of the Monitor

All components are assembled in an alloy enclosure with the protection class IP 65. Theoptical components are mounted directly on the printed circuit board. The plug-in technol-ogy ensures an easy changing of the components together with a compact and robustconstruction. The electronics are state-of-the-art.The wetted parts are produced from stainless steel to ensure a reliable corrosion protec-

tion for a long time. The sample water is fed to the unit from underneath and is dischargedat the top and to the side.The mounting brackets of the unit are prepared at the rear of the unit either for wall orbulkhead mounting.

Water Technology

OIL MONITOR OMD-11

Einla

RWO

Ausla

Fig. 1

Pos Description Pos Description Pos Description

1 Inlet block 6 Housing 11 LED "Fault"

2 O-rings 7 Sample cell tube 12 LED "Alarm 1"

3 Printed circuit board 8 Connection cable 13 LED "Alarm 2"

4 Outlet block 9 Display 14 Desiccator

5 Head screw 10 LED "Power" 15 Flow adjustm. screws


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2 Technical Specif ications

Range: 0 - 30 ppm, Trend 0 - 50 ppm

Accuracy Better than 5 ppm (within IMO requirements)

Linearity Up to 30 ppm better than 2 %

Display 2 digits 14 segment LEDs

Power Supply: 24 Volt AC/DC 15%

Power Consumption: 5 VA

2 Alarm Points: Adjustable between 2 - 15 ppm(Works adjustment 15 ppm)

Alarm Operating Delay: Adjustable between 2 - 20 sec.(Works settings 1 = 10 sec, 2 = 10 sec)

Alarm Contact Rating: Potential free 1 pole change over contacts, 3 A / 24 V

System Fault Alarm: LED

Alarm Indication: Red LEDs

Output Signal: 0 - 20 mA or 4 - 20 mA, reversible, Ri < 500

Class of Protection: IP 65

Sample Water Pressure: 0.1 - 8 bar

Sample Flow: approx. 0.5 - 4 l/min depend. to pressure

Ambient Temperature: - 30 to + 70 CSample Water Temperature: + 1 to + 60 C

Humidity Max. 90% max at 55C

Cleanwater connection Freshwater or seawater (for f lushing and calibration)

Pipe Connections: R 1/4" Female

Roll: up to 22.5

Size (overall): 175 mm long x 190 mm high x 220 mm width

Weight: 3.5 kg


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3 Installation of the Monitor OMD-11

3.1 With an RWO oily water separator of 0.1 or 0.25 m3/h capacity

Because of the small size of the oily water separator, the Monitor OMD-11 is not mountedon the separator but delivered separately.

IMPORTANTThe Monitor OMD-11 should be located close to the oily water separator in order tominimise response delays. The distance between monitor and separator should ne-ver be more than 8 metres; any greater distance would result in a response time ofover 20 seconds which is the max response time in accordance with IMO regula-tions.

overall dimensions

172 213

135

165

140

120

Fix the Monitor OMD-11 with four M5 bolts on a rigid vertical surface, if possible with thedisplay at eye level.Connect the 3-way cock on the Monitor OMD-11 with the separators clean water outletpipe and the freshwater supply, using 8 mm copper piping and ERMETO connections.The sampling pipe should be installed horizontal or in a continuous upward flow.The outlet pipe of the Monitor OMD-11 has to be connected to the 3-way diverting valve.In the alarm state, the effluent water is recirculated to bilge.When assembling the housing and connecting the piping, it is important to avoid stressingthe housing so as to prevent possible damage.

3.2 With an RWO oily water separator from 0.5 to 10.0 m3/h capacity

The monitor is supplied ready-installed on the oily water separator with all necessary pip-ing and wiring.


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4 Operation

4.1 Important Notes

a) This equipment must be installed and operated in strict accordance with the instruc-tions contained in this manual. Failure to do so will impair the protection provided.

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

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

d) The unit must be isolated from the electrical supply before any maintenance of theequipment is attempted.

e) All national or local codes of practice or regulations must be observed and, whereapplicable, are deemed to take precedence over any directive or information con-tained in this manual.

f) To avoid wrong measurements, only quick separating detergents / cleaner should beused.

g) In case of freezing conditions the measuring cell should be emptied completely.

4.2 Commissioning

Once the installation, wiring and piping connections have been completed, carry out thefollowing checks:

4.2.1 Connections

a) Switch the oily separator to ON. Check whether the Power LED lights up.Check the power supply to the oily separator if necessary.

DANGER

At electrical voltages > 42 VDirect contact with live parts can cause serious injury or death.Only qualified electricians should carry out work on live parts.

b) Check all piping connections for leaks and rectify as appropriate.

c) Check the flow rate.

The equipment is set up in the factory for a flow rate 0.5 up to 4 l/min. Adjust theflow rate through the unit by using the small screws in the cell cap (Fig. 1, Pos.15). Turning the screw anticlockwise will increase the flow rate.

Note:The flow rate should be checked on both the clean water supply and theseparator sample supply. If the clean water supply is obtained from a highpressure source, the flow rate will be higher than from the sample point.

The flow rate does not influence the accuracy of the instrument. The adjustmentis only important for the time delay between the sample point and the monitor.


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4.2.2 Functional Tests

a) Run oil-free water through the instrument to purge the system.

a) Switch on the instrumentand make sure that thePower LED is illumi-nated and the display ischanging between "INI"and numbers, decreas-ing from "20". The monitor will display "0" with clean water, otherwise themonitor will be in working conditions when it reached the measured value.Allow a few minutes for the system to warm up and stabilise.

b) During oil-free water is running through the monitor check the Zero adjust-ment according Section 11. The display should be "0". If the display varies bygreater amounts, it may be that air entrainment is present. If this is the case,the cause must be located and rectified.

c) If the Zero needs to be calibrated, this can be done by using the buttons onthe front panel. Pressing simultaneously the buttons " !" and " "" will de-crease the display, pressing simultaneously the buttons " "" and " #" will

result in a higher reading.

4.3 Alarm

The unit is delivered with a works adjustment according the IMO-requirements. The alarmpoints are set to 15 ppm. Other alarm levels (for 5 or 10 ppm) can be set (see 4.4).

4.4 Alarm Set Points and Time Delay

Two alarm circuits, with levels adjustable over the entire measuring range, are built intothe equipment. The alarm circuits 1 + 2 are set up in the factory for 15 ppm (according toIMO). Each circuit has an alarm LED associated with it. Each alarm circuit has, in addi-tion, a potential-free contact for feeding the signal to the outside or for the controlling of

electrical circuits.In RWO oily separators with Monitor OMD-11, the alarm 1 signal is taken to the shipsalarm system. The signal cable should be connected to terminals 17 and 18 of the sepa-rators control system.In RWO oily separators with Monitor OMD-11, the alarm 2 signal is used to control the 3-way recirculation valve. If the limiting value for residue oil is exceeded, it is switched torecirculate back to the bilge or to the bilge water tank. The valve will also be switched tothis position if the bilge water oil separator is switched to the OFF position or the pneu-matic pressure fails.

Please notefor better understanding:

Alarm output of the Monitor OMD-11

in alarm status the position of the alarm switch is open (potential-free, de-energised)

if the power supply is interrupted or the system is not in service, the position of thealarm sw itch is also in alarm position open, (potential-free, de-energised)

This fact sometimes causes trouble because the ships alarm is initiated whenthe oily water separator is off.

Because of this fact, we recommend to connect the alarm 1 output to the control box ofthe oily water separator. Here the alarm circuit will be closed as soon as the main switchof the control box is in off position i. e. no alarm signal will be transmitted as long as theoily water separator is not in service.The alarm 2 is used to control the 3-way diverting valve at the clean water outlet of the oilywater separator. If the oil content in the outflow exceeds 15 ppm, the 3-way valve will beswitched over from "overboard discharge to "recirculation to bilge or bilgewater tank.


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5 Piping connectionsInstallation of the Monitor OMD-11 and the 3-way recirculation valve including all accessories forautomatic switching to recirculation when the limit value (normally 15 ppm) in cleaned bilgewateris exceeded.


The Monitor OMD-11 should be mounted on a vertical surface in the immediate neigh-bourhood of the RWO oily separator and connected below as shown in the piping dia-gram. The piping connections for the equipment are R 1/4" internal thread. We recom-mend 8 mm copper piping x 1 mm wall thickness with clamp ring screw connectors for thepipe connections.The following connections should be made:1. The sample water inlet (Pos 25, 3-way ball-valve) on the monitor should be connected

by pipes to the clean water outlet on the separator (Pos. 13 on the pump) and a line with freshwater or clear seawater for cleaning and zero-balancing.

2. The sample water outlet is at the upper right of the transmitter head, below the screwcap. It shall be connected to the 3-wayrecirculation valve, Pos. 23.

IMPORTANT!For separators with a capacity of 0.1 m3 / h, the pump is not installed on the sepa-rator but is supplied as a separate item.

Pos. SKIT aquacleanS 0,1 0,25

3 Control Panel13 Effluent Outlet DN15 DN1514 Eccentric-Screw-Pump15 Flushingwater Inlet DN15 DN1517 Oil Monitor OMD23 Pneum. Three-way Valve DN20 DN2025 Three-way Ball Valve R1/4" R1/4"

25A Flushingwater Inlet R1/4" R1/4"25B Samplewater Inlet R1/4" R1/4"36 Pressure Reducing Valve R1/2" R1/2"

Flanges PN 16 DIN 2633


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The inlet pipe is screwed into the base of the vessel and for oily water separators with acapacity of 0.5 to 10 m 3/ h is already fitted and piped up, including all accessories or-dered. The outlet is top right at the transmitter head, just below the screw cap. The sam-ple water is fed to a funnel. Samples can be taken here for test purposes.

Pos. SKIT aquacleanS 0,5 1,0 1,5 2,5 5,0 10,0

3 Control Panel11 Orifice13 Effluent Outlet DN25 DN25 DN25 DN50 DN50 DN6514 Eccentric-Screw-Pump15 Flushingwater Inlet DN20 DN20 DN20 DN20 DN25 DN32

17 Oil Monitor OCD23 Pneum. Three-way Valve DN20 DN25 DN32 DN32 DN40 DN5025 Three-way Ball Valve R1/4" R1/4" R1/4" R1/4" R1/4" R1/4"

25A Flushing water Inlet R1/4" R1/4" R1/4" R1/4" R1/4" R1/4"25B Sample water Inlet R1/4" R1/4" R1/4" R1/4" R1/4" R1/4"28 Funnel R1/2" R1/2" R1/2" R1/2" R1/2" R1/2"36 Pressure reducing Valve R3/4" R3/4" R3/4" R3/4" R 1" R11/4"

Flanges PN 16 DIN 2633


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6 Electrical connections

6.1 Warning

DANGER

At electrical voltages > 42 VDirect contact with live parts may cause serious injury or death.Work on live parts should only be carried out by qualified electricians.


The monitor, including all accessories ordered for the automatic switchover of recircula-tion to bilge, will be supplied as individual items and not assembled.As can be seen from the wiring diagram in Section 6.4, the alarm relay contacts are po-tential-free and shown in the alarm state.The monitor is supplied complete with a 9-core, 2 meter-long connecting cable.This cable conveys the alarm signals to the terminal strip of the oily water separator control andcarries the power supply to the monitor.

IMPORTANT!If the connecting cable is not long enough, do not open up the monitor yourself toinstall a longer cable. There is a danger of damaging the sensitive electronic partsand invalidating the guarantee.Get in touch with us to see about delivery of a monitor with a longer cable.

You will find details of the connections in the wiring diagram accompanying Section 8.3 ofthe installation instructions of the oily water separator.The following electrical connections should be made:

Power supply 24V AC via cores 1 and 2 of the RWO oily water separator control, terminals13 and 14 to Monitor OMD-11.

Oil - alarm output circuit 2 via cores 6 and 7 from monitor to RWO oily water separator,terminals 13 and 15 and from there further to the 3-way-recirculation valve.

Connection to an alarm indicator in the control room, if required.We recommend you to connect the oil alarm output circuit 1 via the cable cores 3 and 4from the monitor to the RWO separator, terminals 17 and 18, and from there further to thecontrol room.

Connection of an external recorder etc., if requiredFor connecting the signal further, you require a connecting adapter with a 2 metre-longcable, Article No. 51108EM001.


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The monitor is supplied ready-to-use, including all accessories ordered, for the automaticswitching of recirculation to bilge and mounted on the RWO separator.

The following electrical connections should be made, if required:See also the oil separator installation instructions, Section 8.3.

Connection of an alarm annunciation to the control room.The oil alarm output is taken via the cable cores 3 and 4, circuit 1 of the monitor to theRWO separator control, terminals 17 and 18.We recommend, for the reasons described in Section 4.4 of these instructions, to use theoil alarm relais 1 as alarm signal to the control room.

Connection of an external recorder or oil content indication.For the routing of this signal you require a connecting adapter with a 2 meter-long ca-ble, Article No. 51108EM001.

6.4 Connection Diagram

Braun(-)brown(-)

Signal - Ausgangsignal - output

0(4)-20 mA

lalarmlalarm

RL 1oil alarm

31 2

24 Volt

AC/DC

764 5

oil alarm

RL 2

8 E

Ee

Wei(+)white (+)

Adapter fr Rekorder

adapter for recorder(optional)

(optional)

Water Technology

OIL MONITOR OMD-11

RWO

The relay contacts are shown in the alarm state (not energised).


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7 Monitor operation

7.1 with an RWO oily water separator of 0.1 or 0.25 m3/h capacity

IMPORTANT!

With these low capacity separators, the complete water flow of the separator is ledthrough the monitor. For this, the holes in the head screw of the cell are opened byremoving the flow adjustment screws in the factory.

7.2 with an RWO oily water separator from 0.5 to 10.0 m3/h capacity

IMPORTANT!With these separators, only a part of the water flow through the separator is led viaa bypass through the monitor. For this, a back-pressure orifice plate (separator,Pos. 11) is built into the main flow between the pump and the 3-way recirculationvalve (separator Pos. 23). The amount of the flow through the monitor is, as a rule,already set up in the factory.

The flow rate can be increased in special installation cases by the removal of anadjusting screw, or even both if required, Pos. 15, in the cell head screw (see Sec-tion 1.3, Fig. 1). The flow rate should be at least 0.5 litre/min and for these sepa-rator duties, usually not greater than 2 litre/min.

7.3 Before commissioning

7.3.1 Check if all electrical wiring is done perfectly.

DANGERAt electrical voltages > 42 V

Direct contact with live parts may cause serious injury or death.Work on live parts should only be carried out by qualified electricians.

7.3.2 Check that all mechanical connections are correct and seated properly.

7.4 Before each start

7.4.1 Switch the 3-way ball valve to the position "flushing with clean water".7.4.2 Set the main power switch on the oily water separator to "ON" .7.4.3 The power LED should light up and the indicator "INI" should show a set of num-

bers, beginning with "20", then change and after a short time show "0. Carry outa zero balance, if necessary (see Section 4.2.2).

7.4.4 Wait several minutes till the equipment has reached its operating temperature anda stable state.

7.4.5 Switch the 3-way ball valve to the position "sample water supply".7.4.6 The equipment is now ready for operation and can monitor the clean water leav-

ing the separator.


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10 Troubleshooting

10.1 Fault finding

A fault is indicated, when the green "Power"-LED is off and the red "Fault"-LED is illumi-nated. Simultaneously a fault code will be shown in the display:

Display Reason Servicing

Meter out of range (only whenwithout flashing) Oil content toohigh, dirty sample tube

Clean sample tube, wait until oilcontent is within the range

Fault indication flashing in con-nection with "TR" or "SF"

See under "TR" or "SF"

System Fault, damaged LED orfaulty electronics

Changing of PCB, repair at manu-facturer

Transmission Fault, sample toodark, sample tube dirty

Cleaning of sample tube

Water failure, water inside thehousing of the unit

Open the unit, clean and dry thehousing, replacement of sampletube as necessaryCalibration according Section 13.3.

Calibration request after changingthe position of Jumper J1 inside

the instrument

Calibration according Section 13.3

All otherdisplays

System Fault Changing of PCB, repair at manu-facturer

10.2 Sample Cell Tube Replacement

An alarm, as described in 10.1, is also given if there is a defect in the sample tube. In thiscase the glass tube must be replaced as soon as possible to prevent damage by oxidationto the electronics. The sample tube should be changed as follows:

IMPORTANT!Before opening the device, make sure that any water that might be lying on thehousing is wiped off. If you dont take this precaution, water can run over the edgeinto the device and damage the electronic parts.

10.2.1 Switch off the power supply.

10.2.2 Remove all piping from the instrument.

10.2.3 Open the instrument and remove the front panel. Disconnect the plug connec-tion from the PCB (Dwg. No. 60600-50, P4). Pull the PCB carefully out of itsseat.

10.2.4 Loosen the 3 screws from the outlet block (4) and remove this carefully. Loosenthe 3 screws from the inlet block (1) and remove this together with the sampletube (7).

10.2.5 Clean the inner part of the instrument and make sure that everything is dry.


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10.2.6 Replace the O-rings (2) and the sample tube (7) in the inlet block (1). Replacethe O-rings (2) in the outlet block (4).

10.2.7 Mount the inlet block, the outlet block and the piping.

10.2.8 Do a pressure test at approx. 8 bar with oil free water and make sure that thesample tube is absolutely clean from the outside.

10.2.9 Insert the PCB and make sure that the connection wiring is routed correctly. Re-connect the front panel to the PCB (Dwg. No. 60600-30) and screw it back inplace.

10.2.10 Examine the colour of the desiccator (Fig. 1, Pos. 14). If the colour is light blueor white, the desiccator needs to be replaced.

IMPORTANT!The desiccator cartridge ensures a low humidity inside the measuring cellto prevent erroneous readings which could arise from condensation onthe glass tube. Changing the cartridge is done by unscrewing the unitfrom the front plate and screwing in again. This can be done withoutopening up the equipment. The protective shell of the new cartridgeserves also as a tool.

10.2.11 Carry out a calibration according to Section 13.3.The monitor is now ready for use.

10.3 PCB Replacement (Refer to Fig. 1)

DANGERAt electrical voltages > 42 VDirect contact with live parts may cause serious injury or death.Work on live parts should only be carried out by qualified electricians.


10.3.1 Switch off the power supply and stop the water flow.

10.3.2 Open the instrument and remove the front panel. Disconnect the plug connec-tion to the PCB (Dwg. No. 60600-50).

10.3.3 Pull the PCB carefully out of its seat and disconnect the wiring.

10.3.4 Connect the new PCB accordingly.

10.3.5 Mount the PCB and replace the front panel.10.3.6 Examine the colour of the desiccator (14). If the colour is light blue or white, thedesiccator needs to be replaced.

10.3.7 Carry out a calibration according to Section 4.2.2.


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10.4 Calibration

DANGERAt electrical voltages > 42 VDirect contact with live parts may cause serious injury or death.Work on live parts should only be carried out by qualified electricians.


When calibrating, it is necessary to have a comparison liquid available. For the monitorOMD-11 this is a Formazin-in-water solution with a concentration of 100 FTU (FormazinTurbidity Units). A suitable calibration set can be ordered specially under the Article No.51108EM002.

10.4.1 Switch off the power supply and stop the water inflow.

10.4.2 Open up the device and remove the front plate. Pull the printed circuit board

forward a little till the jumper J1 is accessible.10.4.3 Set the jumper J1 to its other position, so that the centre pin is now jumpered to

the one on the other side of it.

10.4.4 Replace the front plate and switch the power on. "CA now appears in the dis-play and the device is in the alarm state.

10.4.5 Carefully clean the sample tube with clean water and the sort of brush suitablefor cleaning bottles, as described in Section 12.

10.4.6 Empty the sample tube and fill it with a 100 FTU Formazin solution (A suitablecalibration set can be ordered specially under the Article No. 51108EM002.). It isnecessary, under certain circumstances, to fill the tube twice with the Formazinsolution to exclude the possibility of dilution by any water which may be present.

10.4.7 When you have made sure that the correct Formazin solution is in the device,press the keys " !" and " #" at the same time. There now appears in the dis-play 16 1 and the device is calibrated anew.

10.4.8 Now proceed as described in Section 7.4.


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11 Spare Parts

11.1 Drawing showing spare part posi tions

Water Technology

OIL MONITOR OMD-11

Einla

RWO

Ausla

11.2 Spare parts list

No. Of

pieces

Pos. Description Article No.

1 7 Sample tube 51108EM0031 Set 2 O - Rings for sample tube 51108EM0041 3 Printed circuit board 51108EM0051 14 Desiccator cartridge 51108EM0061 1 Inlet block 51108EM0071 4 Outlet block 51108EM0081 5 Head screw 51108EM0081 F1 Fuse (Dwg. 60600-30) 513110025T1 Brush 51106OCD451 Calibration set 51108EM002

1 Set Spare parts * (in a box) 51108EM020

* Spare Parts Box contains:

1 piece Sample tube (7) 1 pieceDesiccator cartridge (14)

1 piece O-rings (2) 1 pieceBrush

1 piece Fuse

Note: All spare parts are optional and not in the standard scope of supply


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11.3 Exchange Parts Service

11.3.1 General

Our equipment undergoes strict quality controls before leaving the factory and iscalibrated according to the IMO specifications.

11.3.2 Exchange Equipment Service

If, in spite of the care mentioned above, it should come to an equipment failure,we recommend you to order a complete exchange monitor from us.

This ensures that, after the exchange, you have a monitor on board that hasbeen overhauled and tested in our factory.

The defective device which has been replaced should then be sent back to usimmediately.

If you return the defective monitor to us within a reasonable period of time (30days), RWO will only charge for the repair and transport costs. Otherwise wemust charge the full sum shown on the invoice which accompanies the ex-change monitor we send to you.

Experience has shown that this offers the customer the most reasonable priceand ensures at the same time that a device is employed which meets the IMOspecifications.

11.3.3 Exchange of electronic components

Because of small variations in the characteristics of the same type of compo-nent, it is recommended to calibrate the Oil monitor after repair and replacementof such components (except for relays, fuses, etc.).

Otherwise it can come to faulty display values and, if the display value is verylow, to exceeding the allowable limit of oil in water.

For the above reasons, we recommend you to order to an exchange unit fromus.

Important Contact Numbers:

RWO Repairs and ServiceT e l : + 4 9 - 4 2 1 - 5 3 7 0 5 3 5F a x : + 4 9 - 4 2 1 - 5 3 7 0 5 4 0

RWO Spare Parts Service

T e l : + 4 9 - 4 2 1 - 5 3 7 0 5 1 8F a x : + 4 9 - 4 2 1 - 5 3 7 0 5 4 0

IMPORTANT!

When you are ordering spare parts or exchange units, please give us the serial no.or construction no. of the oily water separator number! (see cover sheet of the op-erating instructions or the name plate on the bilge water separator).

Date post:	02-Jun-2018
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Bilge Alarm Monitor OMD 11

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