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SyStem FeatureS:
• Over54.000engineswellprotectedbyVISATRON®
• Automaticopacityadaptationtoengine innor-mal operation - FalseAlarm-freeSystemevenunderfrequentchangesinengineloadandrpm
• Extremelylowmaintenancecost-designedforenginelifetime
• Activedirtprotectionofopticsbycleanair-onlyavailablefromSchAllErAutOmAtiOn
• Designedforvibrationsbeyondclassificationrules
• classapprovalof11classificationSocieties
technicalinformation
OIL MIST DETECTION SYSTEMS VISATRON® Vn115/87plus
Vn116/87plus
Vn215/87plus
Vn115/87plusEX
...amemberofDiEmOS®family
2
VISatrON® techNIcal data a cOmpONeNt OF the dIemOS-SyStem
FunctiOnDEScriptiOn
DESIgN
AllOilmistDetectorsoftheViSAtrOn®familyaredesig-nedtolastthelifetimeoftheengine.the measuring heads containing the optical system foropacity measurement, as well as the electronics, aredesigned to be interchangeable with the older Vn/87series,producedforalmost25years.
theair jetpump,theconnectorplug,thepipeconnectorbox(Vn115/87plus)resp.thevalvebox(Vn116/87plusandVn215/87plus)andtheshock-absorbingmountingplatefortheactualmeasuringheadaremountedona solidbaseplate.
AllViSAtrOn®OilmistDetectorsareequippedwith3re-layoutputs:-Systemready-pre-Alarm-highOilmistAlarm(alsocalledmainAlarm)
AllViSAtrOn®-devicescontinuouslydrawtheatmospherefromcompartmentsofthecrankcasebymeansofasuctionsystem.thesuction required isgeneratedby theVenturieffect,fedbycompressedair.thesampleflow,consistingofairfromthecrankcasecompartments,isguidedthrougha light beam of infrared light formeasuring opacity. thelevel of oil mist is measured by the absorption of theinfraredlight.Opacity (in %) is used as the dimensional unit of theturbidity;100%Opacitymeanstotallightabsorption,and0%opacitynoabsorption.
theVn87plusseriesoffersthefollowingstandardfeatures:• Scavengingairchambersarenotsuppliedwithairfrom
theengineatmosphere,butwithfreshpressurizedairso that the optical system is well protected againstcontaminationandstaysclean.Alsothefiltersstaycleanforalongerperiod.
• A measuring head heating unit prevents possiblecondensation, limitingthedangeroffalsealarmsduetohumidityaroundtheopticalsystem.
• An rS 485 interface permits the connection ofthe Vn87plus series to a remote monitoring unit,alternatively the system may be connected via a4-20mAconnection.
• Aseparatepre-alarmrelay,activatedat70%opacityofmainalarmlevel,willbeactivatedbeforeanenginestopwillbetriggeredbasedonahighconcentrationofoilmist(endangeringtheengine).
3
VISATRON®Vn115/87plusandVn115/87plusEX
• Basicdesign,suitableforthemonitoringoftrunkpistondieselengineswithin-lineandV-typeenginesrunningatmediumandhighspeed.
• intheeventofdangerousoilmistgeneration,thereisanalarmsignalviathealarmrelayforhighoilmist.thereisnoindicationoftheoilmistsourcelocation.
VISATRON®Vn116/87plus
• Suitableforthemonitoringoftrunkpistondieselengi-neswithin-lineandV-typeenginesrunningatmediumandhighspeed.
• OilmistDetectionviaapipesamplingsystemandanindicationwhichsideoftheenginetheoilmistlevelhasrisentodangerouslevels.
• iflocalizationofthehighoilmistisrequired,theVn116/87canreplacetheVn115/87withminimalmodification.
VISATRON®Vn215/87plus
• Suitable for the monitoring of crosshead enginesrunning atmedium and slow speed, because the oilmist spreads out from the damaged compartmentmoreslowlythaninthecaseoftrunkpistonengines.
• Damagedetectionthroughtheindividualcompartmentsuction pipe system, displaying the relevantcompartmentgivingthealarm.
applIcatION OF the dIFFereNt VISatrON® deVIceS aNd SuctION SyStemS
4
thedetectionofdamagetakesplacethroughaheaderpipesamplingsystemwithoutlocalizationofthepointofhighoilmist.theairmixture from thecrankcasepasses fromallindividualcompartmentsviatheheaderpipethroughthe
detector‘spipeconnectorboxintotheopacitymeasurement path. the alarm threshold canbe set to 4levels.
the dIFFereNt VISatrONS®
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161
Original A0 Dimension drawing VN115/87plus
von 2
DC180161 02CAD-ZeichnungBenennung Sach-Nr.Ausg. Datum Ze. RS Datum Name Blieskastel / Saar002 29.07.08 Mü Gez. 12.03.08 Winter003 11.04.16 JH Gepr.
Norm
M21:1
Werkstoff,Halbzeug Toleranzen Masstab
M25x1,5
G 1/2
A-A
G 3/4
G3/4
G 3/4
4 mountingholes for M8screws orthread bolts
compressed airconnection 2-15 barfitting G 1/4
120
175
174
ca.113
108 ca.179
ca.5
3811
1
158
111
140146
171
4652
116.5ca.197
7.5
the detection of damage takes place through a headerpipesamplingsystemwithadisplayofthecrankcasecom-partmentsideinwhichtheoverheatingdamagehasarisen.themixtureofatmospherefromthecrankcasepassesfromallindividualcompartmentsviatheheaderpipethroughthevalveboxintotheopacitymeasurementpathinthehous-ingofthemeasuringhead.iftheopacityofthemixtureofatmospherefromthecrankcaseexceeds10%ofthealarmthresholdthathasbeenset,adamagecheckstarts.
thevalvesinthevalveboxareswitchedoveraccordingtoaproprietaryalgorithmduringthedamagecheck,untilthesideofthecrankcasecompartmentswiththeoverheatingdamagehasbeenfound.thealarmthresholdcanbesetto4levels.theincreasedsensitivity,incomparisonwiththeVn115/87plus,resultsfromthefactthatanalarmistriggeredifthedifferenceinopacitybetweenthetwohalvesofthecrankcasecompartmentexceeds20%ofthealarmthresh-oldthathasbeenset.
A
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162
Original A0 Dimension drawing VN116/87plus
von 2
DC180162 02CAD-ZeichnungBenennung Sach-Nr.Ausg. Datum Ze. RS Datum Name Blieskastel / Saar002 29.07.08 Mü Gez. 12.03.08 Winter003 11.04.16 JH Gepr.
Norm
M21:1
Werkstoff,Halbzeug Toleranzen Masstab
M25x1,5
G 1/2
A-AG 3/4
G3/4G 1/2
G 3/4
4 mountingholes for M8screws orthread bolts
compressed airconnection 2-15 barfitting G 1/4A
120
175
174
ca.112
ca.179
ca.5
3853
4652
123.5197
108
209
7.5140
111
165
36
171
VISATRON®Vn115/87plus
VISATRON®Vn116/87plus
4
5
the sampling of oilmist levels takes place via a singlepipe sampling system, indicating the exact crankcasecompartmentinwhichthehighoilmistlevelsarecritical.the air mixture from throughout the crankcase passesthroughthemeasuringhead‘shousing.iftheopacityofthemixtureofairfromthecrankcaseex-ceeds10%ofthealarmthresholdthathasbeenset,a
damagecheckstarts.thevalvesinthevalveboxareswitchedoveraccordingtoaproprietaryalgorithmduringthedamagecheck,untilthecrankcasecompartmentwiththeoverheatingdamagehasbeenfound.thealarmthresholdcanbesetto4levels.
the dIFFereNt VISatrONS®
A
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163
Original A0 Dimension drawing VN215/87plus
von 2
DC180163 02CAD-ZeichnungBenennung Sach-Nr.Ausg. Datum Ze. RS Datum Name Blieskastel / Saar002 29.07.08 Mü Gez. 12.03.08 Winter003 11.04.16 JH Gepr.
Norm
M21:1
Werkstoff,Halbzeug Toleranzen Masstab
compressed airconnection 2-15 barfitting G 1/4A
M25x1,5
G 1/2
A-A
G 3/4
4 mountingholes for M8screws orthread bolts
120
175
174
ca.112
ca.179
ca.5
38
285615
5
ca.197114.518
52
53
108
209
111
140 7.5171
VISATRON®Vn215/87plus
mOuNtINg example
6
• Suitableforthemonitoringof4-strokeDiesel,Gas-andDualFuelenginesinlineorV-typeenginearrangements
• AtEX-certifiedforcrankcaseenvironmentaccordingtoii(2G)[ExopisiiBt4Gb]
• in the event of dangerous oil mist generation, thereisanalarmsignalviathealarmrelayforhighoilmist.thereisnoindicationoftheoilmistsourcelocation.
the detection of damage takes place through a headerpipesamplingsystemwithout localisationof thepointofdamage. themixtureof atmosphere from the crankcasepassesfromallindividualcompartmentsviatheheader
pipe through the detector‘s pipe connector box into theopacitymeasurementpathinthehousingofthemeasuringhead.thealarmthresholdcanbesetto4levels.
the dIFFereNt VISatrONS®
VISATRON®Vn115/87plusEX
10
ca.148
ca.180
angle freely
adjustable
195.
5
ca.186
175
120
15
ca.6
30.5
174
ca.5
38
44.552
ca.143
1407.5
158
171
111
202116.5
ca.87
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164
Original A1 Dimension drawing VN115/87plus EX
von 2
DC180164 02CAD-ZeichnungBenennung Sach-Nr.Ausg. Datum Ze. RS Datum Name Blieskastel / Saar002 06.10.14 Wi Gez. 15.09.14 Winter003 01.07.16 Wi Gepr.
Norm
M21:2
Werkstoff,Halbzeug Toleranzen Masstab
M25x1,5
G1/2
flexible hose with screw connectionfor pipe - diameter 10mm
(included in delivery)
G3/4
compressed airconnection 2-15 barfitting G1/4
4 mounting holesfor M8 screws or
tread bolts
G3/4
G3/4
compressd air inlet003
7
VISatrON® techNIcal data
VISATRON®Vn116/87plusand
VISATRON®Vn215/87plus
Alarmthreshold2%*opacity(seebriefdescriptionoftheVn115/87plus),adjustablein4levelsfrom0.5%to25%Opacity.
Damagecheck-startthreshold0.24%*opacity(seebriefdescriptionoftheVn116/87plus),adjustablein4levelsfrom0.16%to0.55%opacity.Differential alarm threshold 0.49% *opacity (see briefdescriptionoftheVn116/87plus),adjustablein4levelsfrom0.33% to 1.1% opacity. Safety alarm threshold 2.44%*opacity,adjustablein4levelsfrom1.6%to5.5%opacity.*Factorysetting
pOwer Supply VISatrON®
ElEctricpOwErSupply
SIgNal OutputS aNd dISplayShiGhOilmiStAlArm
DriVEAirFOrthESuctiOnSyStEmViSAtrOn®
VISATRON®Vn115/87plus,VISATRON®
Vn115/87plusEXandVISATRON®Vn116/87plusVISATRON®Vn215/87plus
2headerpipes(22x2mm)withthinnerbranchpipes(10x2mm)tothecrankcasecompartments,max.length9m.
individualpipes(14x2mm)fromeachcompartmenttotheOmD,max.length9m.
themaximumnumberofsamplingpointsforbothsystems(headerpipeandindividual)=10Suctionpressuremeasuredagainstatmosphericpressure60mmwc.
Voltage 24VDc-25/+30%,24Vbatteryorpowersupplyunit
note incaseofbatteryoperation,provideadirectpowersup-plyfromthebatteryterminalsdirectlytotheViSAtrOn®device!
currentconsumption max.2A
Adjustmentrangeforthesensitivity canbesetto4levels
remotesignalling relaywith2potential-freeswitch-overcontacts.contactload max.60VDc,1A,60wwire-breakprotection Bridgingeachn.o.contactswith33Kohmresistor.
resistorscanbeexchangedagainstothervalues.Displayedondevice permanentlyredalarmlED
Vacuummeasuredagainst theatmosphereof60mmwc.themeasurement isperformedwithau-pipemanometerinthemeasuringhead.theu-pipemanometerisacompo-nentoftheservicebox(seeaccessories).
Air consumption max. 2,5 n m3/h (m3 at atmosphericpressure).thedriveaircanbetakenfromthepneumaticenginecontrolsystemorfromthestartingairsystem.
SeNSItIVItyVISATRON®Vn115/87plus
8
prE-AlArm
cABlEcOnnEctiOnS
Factorypre-Set to70%ofthemainalarmthreshold,notchangeable
remotesignalling relaywithpotential-freecontact,opensforapre-alarmcontactload max.60VAc,2A,120VA/max.60VDc,2A,60wDisplayedondevice Blinkingredalarmrelay
remotesignalling relaywithpotential-freeswitch-overcontact,whenthedeviceisfunctioningtroublefree
contactload max.60VAc,2A,120VA/max.60VDc,2A,60wDisplayedondevice Greenready-lEDonwhenthedeviceisfunctioning
troublefree
remotesignalling Byaremoteindicator,throughtherS485interfaceor4-20mA
Displayedondevice Setof14lED‘sdisplayingtheopacityrelativetothealarmthreshold in 14 steps, i.e. the main alarm is triggeredwhentheupperlEDisreached.
housingandbaseplate castaluminium.Supportplateforthemeasuringhead:stainlesssteelplatewithantivibrationsuspension
Allsurfaces lacquered,rAl7035Springs,boltsetc. Stainlesssteelrubberpartsforvibrationreduction Oilresistant.Built-invibration
reductionfortheelectronicpartSystemofprotection ip54Opertingrange 0°cto70°cStoragetemperature -25°cto+80°c
Vn115/87plusnetweight 7.5kg
Grosswithspecialpacking 12.5kgVn116/87plusandVn215/87plusnetweight 9.4kgGrosswithspecialpacking 13.5kgVn115/87plusEXnetweight 11.0kgGrosswithspecialpacking 15.0kg
m25x1.5screwedconnectionsforthecableconnectionoftherelaycontactsandpowersupply
rEADy,inDicAtiOnOFDEVicEinOpErAtiOn
OpAcityDiSplAy
mEchAnicAlDAtA/tEmpErAturE
VISatrON® techNIcal data
9
comprehensiveinvestigationsondifferenttypesofengineshavemadeclear that thesamplingpoints for theoilmisthavetobeplacedintheinteriorofthecrankcaseatpointswherethehighestpossibleconcentrationofoilmistcanbeextracted,intheshortesttimepossible.theconcentrationofextractedoilmistfromthecrankcaseisanindicationoftheconditionofthecrankdrive.itisimperativethataccu-rateinformationistransmittedasasignalwiththegreatestpossibleintensityfromthepointofoilmistgeneration,so
thatthesensitivityoftheOilmistDetectordoesn‘thavetobesetunnecessarilyhigh.Otherwise,interferinginfluencesarealsoreceivedandevaluated.One of the most important requirements for a well-functioning oil mist monitoring system is the absolutenecessity of avoiding false alarms. in addition, the waythe piping system is installed on the engine is of greatimportance.
the picture shows the conventional installation of aVISATRON®OilmistDetectorVn215.thepipeshavethenecessaryslopeforthereturnoftheoilthathasprecipitatedfromtheoilmist.Duetothisslope,thepipesrequireanareaoffreespaceextendingovertheentirelengthoftheengineand part of its height. this prevents obstruction of thecrankcasedoors and compartmentsduringmaintenancework.
the picture shows, the installation of a ViSAtrOn® Oilmist Detector, type Vn215, with individual compartmentsuctionpipesystemconsistingofaspace-savingsiphonblock assembly set. the advantage of horizontal pipeinstallationcanbeclearlyrecognised.Oilthatprecipitatesinthesuctionpipesisledbackintothecrankcasethroughthesiphonblocks.
the picture shows a further alternative in tubingarrangement for Vn115/87plus and Vn116/87plus. to avoidcollectionofexcessiveoilinthehorizontaltubingsystem,oilseparationunitsareinstalled(seemarking).
the picture shows the sectional view through a suctionhead with its maze, which effectively prevents spray oilfromgettingintothesuctionpipesystem.
VISatrON® aSSembly SyStem
illuStrAtiOn1
illuStrAtiOn2
illuStrAtiOn3
illuStrAtiOn4
10
VISatrON® aSSembly SyStem
theenginewallconnectionsjointhesuctionheadslocatedin the crankcase compartment and the suctionpipesontheoutside,andareavailableinvariousdesignswithdif-ferentmetricorpipethreadsizes.mazesuctionheadswithdifferentpipe lengthscanbe installed (see illustration4).theenginewallconnectionscanbeusedforconventionalsuctionpipesystemsoralsoinconnectionwithVISATRON®siphonblocks.
SchAllEr AutOmAtiOn has developed various typesof ViSAtrOn® assembly units in order to adapt to theinstallation conditions on almost every engine design.the assembly units consist of a ViSAtrOn® OmD, aspecific engine adaptedbracket, available for crossheadand trunkpistonengines, an integratedprotectivecover,anairpressureregulationunit,fixturesandfittingsforthecompressedairsupply.theassemblyunitisacomponentoftheViSAtrOn®assemblyset.SchAllErAutOmAtiOnsupplies special, ready-mademodular assembly sets forVISATRON® Oil mist Detectors, for a variety of enginetypesfromworldwidemanufacturers.AnOilmistDetectionsystemforaspecificengine,(illustration6)consistsof:•pipeconnections,eitherwithenginewallconnectionsorsiphonblocks•ready-madepipes•Allnecessaryfittings,suchaspipesupportsandfasteningelements
pressure regulationunit (illus.8).thepressure regulationunit consistsof apressure regulatoranda throttleblockwith an integrated air filter. the throttle block ensuresthat the drive air pressure in the ViSAtrOn® Oil mistDetectordoesnot increasetoanexcessivelyhighlevel ifthepressureregulatorfails,(e.g.failureofdiaphragm).thepressure regulation unit is delivered, pre-assembled andreadytooperatewithitsbracket.
SchAllEr AutOmAtiOn offers a specially designedserviceboxfortheViSAtrOn®adaptationtotheengineforquickassemblythatisavailabletoallourclients.ServiceBox (illus. 7) on request. the service box contains allreplacement parts, tools and devices necessary for theinitialoperation,therepairandthefixingofmalfunctions.the amount of replacement parts in the service box issufficientforanoperatingperiodof1year.
illuStrAtiOn5
illuStrAtiOn6
illuStrAtiOn7
illuStrAtiOn8
11
SyStEmFEAturES
theOmDEAisdesignedtofindthehighestpossibleOmDsensitivity in the shortest possible time with the lowestpossiblefalsealarmlevels,adaptedtospecificenginetypes.
with the release of the unified requirements (ur) m10 (‘protection of internal combustion engines againstcrankcaseexplosions’)andm67(‘typetestingprocedureforcrankcaseOilmist Detection andAlarmEquipment’)in2006,iAcS,forthefirsttime,requestedsimilartestsviaclassification Societies for new engine types and vesselnewbuilds.
Omdea® OIl mISt detectION eFFIcIeNcy apprOVal
SchAllErAutOmAtiOnoffersdamagesimulation,withourin-housesimulator,tointegratetheOmDsysteminthebestpossiblemannertospecificenginetypes.
Oil mist Generators providing real oil mist in order tosimulatee.g.acutebearingdamageinarunningengine.
DownloadyourOmDEABrochurehere
headquarters:Schaller automationIndustrielle Automationstechnik GmbH & Co. KGIndustriering 14D-66440 BlieskastelTel.: +49 6842 508 0Fax: +49 6842 508 260 Mail: [email protected]
Key account management center:SingaporeSchaller Automation Pte Ltd.114 Lavender Street#09-93 CT Hub 2Singapore 338729Phone: +65 6643 5151 (24/7)Fax: +65 6643 5150Mail: [email protected]
chinaSchaller Automation - ChinaRoom 401, Juyang Mansion No. 1200Pudong Avenue,Shanghai 200135, P.R.ChinaPhone: +86 - 21 - 5093 - 7566Mobile: +86 - 1390 - 1890 - 736Fax: +86 - 21 - 5093 - 7556Mail: [email protected]
uSaSchaller Automation LP811 Shotgun RoadSunrise, FL 33326United States of AmericaPhone: +1 954 794 1950Mobile: +1 561 289 1495Fax: +1 954 794 1951Mail: [email protected]
Safety for you and your engine:Worldwide!
iSO9001/2015certified
Vn87EnV2.0203/2019
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