Bilgmon488 Instruction Manual VC

BilgMon488 Instruction Manual vC 1/23

INSTRUCTION MANUAL

BilgMon48815 ppm Bilge Alarm

Brännströms Elektronik ABUddevallagatan 14416 70 Göteborg

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[email protected] ♦ www.brannstrom.se


Contents1.Introduction................................................................................................................................. 32.Construction................................................................................................................................ 33.Operation..................................................................................................................................... 44.Specification................................................................................................................................. 55.Installation................................................................................................................................... 66.Operating Instructions............................................................................................................. 117.Simulation.................................................................................................................................. 208.Contrast...................................................................................................................................... 209.Clibration check (40 NTU)..................................................................................................... 2110.Maintenance............................................................................................................................ 2111.Troubleshooting...................................................................................................................... 2212.Certificates............................................................................................................................... 23


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1.IntroductionThe BilgMon488 bilge alarm has been designed specifically for use in conjunction with15 ppm oil-water separator units. BilgMon488 performance meets the requirements ofthe International Maritime Organisation specifications for 15 ppm bilge alarms containedin resolution MEPC. 107(49).

BilgMon488 is equipped with 2 adjustable alarms that are triggered when the oil-contentof the processed sample exceeds the set limit (1 – 15 ppm, works-adjusted to 15ppm).Alarm outputs consist of relays and indicator LEDs. Additionally a 0(4) – 20 mA currentoutput signal (corresponding to 0 – 30 ppm) is available to enable remote surveillanceand recording of oil contents.

2.ConstructionBilgMon488 consists of two main parts, the MASTER unit (housing with LCD, buttonsand LEDs) and the SENSOR unit (housing with pipe fittings).

The MASTER unit contains all the electronics used for control and data storage of thebilge alarm. Mounted in the lid of the MASTER housing is the main memory containingthe bilge alarm log.

The SENSOR unit contains electronics for measuring the sample stream. The SENSORunit also holds the measurement calibration data. Communication with the MASTERunit is done wireless hence the SENSOR unit is hermetically sealed and shall not beopened.


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3.OperationOptical sensors monitors the amount of light scattered and absorbed by the oil dropletsin the sample stream. Sensor signals are processed by a microprocessor to produce acorresponding oil content (ppm) output. The output is communicated to the MASTERunit where it is processed. The MASTER unit takes action, such as alarm activation,logging etc., depending on the oil content and the separator signal.

Settings that affect the behaviour of the bilge alarm are described in detail in the”Operating Instructions” section.

Zero point calibration can be re-adjusted on site whereas full sensor calibrationaccording to IMO-requirements is performed by manufacturer.


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4.SpecificationMeasurement:Oil range: 0 – 30 ppmResolution: 0.1 ppmAccuracy: According to IMO MEPC.107(49)Response time: < 3 sec

Alarms:Alarm 1 (valve control) delay: 0-10 sec user adjustableAlarm 2 (annunciation) delay: 0-600 sec user adjustableAlarm points 1 and 2: 1-15 ppm user adjustableAlarm hysteresis: 0.5 ppm (below alarm point)

User interface:LCD display: 2x16 alphanumeric displayControl: 4 button keypad

Input/Output:Current output: 0 – 20 mA or 4 – 20 mA for 0 – 30 ppmCommunications: RS232 serial communication (separate

adapter)Alarm outputs: 2 x relays (0.25A)Clean water solenoid valve output: 1 x relay (0.5A, supply voltage)Switch input: 1 x switch input for separator status

Data storage and retrieval:Calibration storage: Stored in sensor housing.IMO required data: Stored in BilgMon488 main housing (sensor

housing may be replaced with dataremaining on board).

IMO required data retrieval: Via LCD display, RS232 or removablememory.

System and supply:Supply: 1 A, 115 or 230 V AC, 50 – 60 Hz Power consumption: 10 VA


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5.InstallationMechanical


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Tube arrangement alt 1


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Electrical connections


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6.Operating InstructionsThe menu system of BilgMon488 is organised into 4 top menus:1. Main menu.2. Info menu.3. Log menu. 4. Cleaning/test menu.5. Settings menu.Some of the menus also contain submenus for displaying or setting the properties of theapparatus.

Navigating the menus is done by using the 4 push buttons located beneath the LCDdisplay. In this document they are referred to as (from left to right) MINUS, PLUS,ABORT and ENTER. LONG_ENTER means keeping the ENTER button pressed formore than 2 seconds. By using the above mentioned buttons the user is able to navigatemenus, enter values and activate different functions of the BilgMon488 .


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• Main menuAfter start the display will show the main menu. The apparatus can only be activated whenthe display shows the main menu hence the user has to be sure that the apparatus is left inthe main menu state after performing settings, cleaning, tests etc. Contrast of the LCDscreen can be adjusted by holding the ABORT button while adjusting with PLUS andMINUS when in main menu. Note that the apparatus will return to the main menu after 5min of no activity (no pressed buttons). The bilge alarm can only be activated when inmain menu. In all other menus the overboard valve will be closed.

• Info menuThe submenus of info menu show information about the master unit (software versionand part ID) and the sensor unit (part ID, SW version, sensor birth date and date of lastcalibration check). Note that entering the submenus also puts the apparatus in an alarmstate.

• Log menuThe log menu contains functionality for searching and stepping the logged IMO requireddata.

• Cleaning & test menuThe cleaning & test menu and its submenus provide measures for calibrating, cleaning andtesting the apparatus.

• Settings menuSettings menu contains adjustable settings of parameters such as ppm-limits, alarm/valvetime delays, autoflush settings, clock and current output (curro) mode.


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The following table shows the different menus and submenus of the BilgMon488 anddetailed instructions on how to operate them.

The ”main menu” isdisplayed at startup. Thevalues shown in this menuare date, time, the measuredoil-content of the sample inparts per million (ppm) andthe position of the cleanwater valve (SPL = sample,WTR = clean water).Press PLUS to go to nextmenu.Return to this menu bypressing ABORT severaltimes.


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050327 10:06:00PPM=07.2 SPL


The ”info menu” and itssubmenus containinformation about thesystem such as softwareversions, ID-numbers etc.To enter the infosubmenus press ENTER.Press PLUS to go to nextmenu.Return to this menu bypressing ABORT severaltimes.

Continuous cycles withinformation about themaster unit (se rightcolumn).Press PLUS to go to nextsubmenu. Press ABORT to exit thesubmenu.

Master info

Master ID: AC02-2321

Master SW ver:000A

Continuous cycles withinformation about thesensor unit (se rightcolumn).Press MINUS to go toprevious submenu.Press ABORT to exit thesubmenu.

Sensor info

Sensor ID: CD12-4541

Sensor SW ver:000B

Sensor date: 050219 15:20:00

Cal. checked:050220 10:00:00

T:25.3 Dry:60V3:0211 V03:0096


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Info Master info

Sensor info


The ”log menu” shows thenumber of events/entriescurrently available in the logmemory.To enter the log submenupress ENTER (onlypossible if log is not empty).Press PLUS to go to nextmenu or MINUS to go toprevious.

The ”step log menu” letsthe user step through theapparatus log displaying theevent, date and time of thelog entries.Step backwards (in time) bypressing MINUS andforward by pressing PLUS.Enter search mode bypressing ENTER (se right).Return to ”log menu” bypressing ABORT.When returning from thismenu the user will be asked”Send log?”. This providesthe possibility to send datato the serial port of theapparatus. Answer thequestion by pressing thebutton corresponding to thedesired answer.

The ”search log menu” letsthe user search for a specificdate in the log. Note that acursor is shown under theitem currently edited.Move cursor by pressingENTER. Increase/decreasevalue by pressingPLUS/MINUS. Commitsearch by pressingLONG_ENTER (return to”step log menu” with resultof search).Abort search by pressingABORT (return to ”step logmenu”).


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Log1043 entries

Log: PPM > 15050223 13:32:12

Log: Search for:050223 13:32:12


To enter the ”cleaning andtest” submenus pressENTER.Press PLUS to go to nextmenu or MINUS to go toprevious. ABORT returnsto ”main menu”.

Press ENTER to enter thecleaning mode (se right).Press PLUS to go to nextsubmenu and ABORT toexit the submenu.

The cleaning mode lets theuser unscrew the cap of thesensor housing and cleanthe sensor using water and asoft brush.The water valve can beopened and closed bypressing MINUS.When the sensor tube isclean enough the ”zerovalue” will be below 50%when running clean waterthrough the sensor. PressingENTER when ”ZERO” isdisplayed zero calibrates thesensor.

Press ENTER to enter thecheck 40NTU calibrationmode (se right).Press PLUS to go to nextsubmenu or MINUS to goto previous.Press ABORT to exit thesubmenu.

Fill the sensor with 40NTUreference fluid. If the sensoris correctly calibrated thecalibration value displayedshould be above 80%.Pressing ENTER (OK)when the calibration value isdisplayed sets the calibrationcheck date (shown in”sensor info” submenu) tocurrent date.


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Cleaning & test Clean cell: START

Zero value: 040% WTR ZERO

Check 40NTU cal: START

Cal value: 083% OK


Press ENTER to enter theautomatic cleaning mode (seright).Press MINUS to go toprevious submenu.Press ABORT to exit thesubmenu.

The test outputs lets theuser toggle the relay outputsof the BilgMon488. PressMINUS/PLUS/ABORT totoggle the states of valve-/alarm-/water-relay. Notethat a time limit is used forthe water- and valve-relays.Two relays can not beactivated simultaneously. Inthe top right corner of theLCD an indication of theinput signal is shown (”C”means closed and ”O”means open).Exit by pressing ENTER.


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Test outputs:Enter to start!

ALM VLV WTR COFF 09 OFF EXIT


To enter the ”settings”submenus press ENTER.Press PLUS to go to nextmenu or MINUS to go toprevious.

Valve settings menu showthe values set for Alarm 1(valve control). There aretwo editable values, theppm limit (”ppm:”) and thetime delay (”t:”) of thealarm.

Press ENTER to edit thevalve settings (se right).Press PLUS to go to nextsubmenu and ABORT toexit the submenu.

Move cursor by pressingENTER. Increase/decreasevalue by pressingPLUS/MINUS. Commitvalue by pressingLONG_ENTER.Abort edit by pressingABORT.

Alarm settings menu showthe values set for Alarm 2(annunciation). There aretwo editable values, theppm limit (”ppm:”) and thetime delay (”t:”) of thealarm.Press ENTER to edit thealarm settings (se right).Press PLUS to go to nextsubmenu or MINUS to goto previous.Press ABORT to exit thesubmenu.

Move cursor by pressingENTER. Increase/decreasevalue by pressingPLUS/MINUS. Commitvalue by pressingLONG_ENTER.Abort edit by pressingABORT.


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Settings Valve settingsppm:15.0 t:000s

Valve settingsppm:15.0 t:000s

Alarm settingsppm:15.0 t:010s

Alarm settingsppm:15.0 t:010s


Autoflush lets the user setthe duration (”t:”) inseconds and the interval(”int:”) in hours of theautomatic sensor flushfunction.Press ENTER to edit theautoflush settings (se right).Press PLUS to go to nextsubmenu or MINUS to goto previous.Press ABORT to exit thesubmenu.

Move cursor by pressingENTER. Increase/decreasevalue by pressingPLUS/MINUS. Commitvalue by pressingLONG_ENTER.Abort edit by pressingABORT.Setting the duration to 0seconds turns the autoflushfeature off.

Set clock shows the dateand time as displayed in themain menu.Press ENTER to edit/setthe date and time.Press PLUS to go to nextsubmenu or MINUS to goto previous.Press ABORT to exit thesubmenu.

Move cursor by pressingENTER. Increase/decreasevalue by pressingPLUS/MINUS. Commitvalue by pressingLONG_ENTER.Abort edit by pressingABORT.Time format is ”yymmddhh:mm:ss”.

Curro mode shows the setmode of the currentoutputt.Press MINUS to go toprevious submenu.Press ABORT to exit thesubmenu.

Toggle value by pressingPLUS/MINUS. Commitvalue by pressingLONG_ENTER.Abort edit by pressingABORT.


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Autoflush ( on)t:20s int:24h

Autoflush ( on)t:20s int:24h

Set clock:050327 11:34:05

Set clock:050327 11:34:05

Curro mode0 to 20 mA

Curro mode0 to 20 mA


7.SimulationBy holding the ENTER button pressed while in main menu lets the user simulate differentppm values and separator input states. In this mode the The following table shows thedisplay in the test mode.

Pressing the MINUS buttondecreases the PPM value by1.0. Pressing the PLUSbutton increases the PPMvalue by 1.0. Pressing theABORT button toggles thesimulated separator input(PWR = separator off, ACT= separator on). In theupper right corner of thedisplay an indication isgiven of the clean watervalve position.

8.ContrastBy holding the ABORT button pressed while in main menu lets the user set the contrastof the LCD screen. In this mode the The following table shows the display in the testmode.

Pressing the MINUS buttondecreases the contrast valueby 10%. Pressing the PLUSbutton increases thecontrast value by 10%.


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Contrast: 010%

SimulationPPM=07.0 ACTSimulation SPLPPM=03.0 PWR

Log1043 entries


9.Clibration check (40 NTU)Enter the ”Check 40NTU cal” submenu of the cleaning & test menu. Press enter to startthe calibration test. The clean water valve will now be opened. Close the clean watersupply. Drain the sensor and fill it with 40NTU calibration fluid. The display should nowshow a value between 80% and 100%. If this is the case an ”OK” will be shown over theRETURN button. Press the RETURN button to set the ”Cal checked” date as shown inthe ”Sensor info” submenu.

10.MaintenanceThe BilgMon488 can be set to autoflush. This means that the senor tube is flushed withclean water at durations and intevals as set in the settings menu. Autoflush is only activewhen in main menu and BilgeMon488 is not active.


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11.TroubleshootingSymptom Possible reason Servicing

BilgMon488 is switched onbut LCD remains blank.

Power supply is erroneous.

or

LCD monitor is broken.

Check connections.

Order replacement part.PPM value remains high Dirty sensortube

or

Air present in sample

or

Excessive contaminatespresent in sample (rust,bacteria etc...)

Clean the sensor tube andre-zero.

Correct cause of airpresence. Clean sensor andre-zero.

Correct cause ofcontamination. Clean sensorand re-zero.

LCD display show:MEMORY ERROR/MEMORY WRITEERROR

Memory malfunction

or

Memorychip not present

Order replacement part.

Replace the memorychip.LCD display show:Lost sensor contact! Dirty or damaged

MASTER-SENSORcontact area.

Part MASTER andSENSOR units. Cleancontact surface with milddetergent.


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12.Certificates


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Documents

Bilgmon488 Instruction Manual VC