12
Performance and Efficiency Monitoring
Performance and Efficiency Monitoring
2
CMT provides five different systems:
• Peak Pressure Indicator:Easy,simpleandefficienttooltomeasurepeakpressure.
• PREMET M:Moderneconomicandeasytousedevicewithallfeaturesneeded.
• PREMET X:Ultraaccuratedevicewithalargecolordisplayandadvancedconnectivity.
• PREMET Online Single Sensor:SimilartothePREMETXfunctionalitybutpermanentlywiredupalwaysreadytotakeameasurement.
• PREMET Online 24/7:Measurescontinuouslytheperformanceofthemainenginesowillnotmissanyproblem.
Sea going vessels require large amounts of fuel to operate. Therefore diesel engine performance is paramount to a ships owner’s bottom line. Most marine diesel engines operate on lower-quality fuels that can cause ignition delays and incomplete combustion.
CMTsDieselPerformanceAnalyserscanprovideearlydetectionofwornordamagedenginecomponentssuchaspistonringleakage,burntpistoncrown,exhaustvalveleakageandmuchmore.Italsoensuresthattheengineiswellbalancedandtheinjectiontimingiscorrect.Anoptionalfeatureisanacousticemissionsensorthatmeasuresfuelinjectionwithoutpenetratingthefuelsystem.Thisoptiondeliversenhancedengineperformancebyutilizingsomeofthelatesttechnologicalinnovationsdesignedspecificallyformarineengines.
Your benefits:
• Reducedfuelconsumption
• Wellbalancedengine
• Correctignitiontiming
• Overloadprotection
• Improvedmaintenanceefficiency
• Reducedsparepartspurchases
• Reducedemissions
Ordering InformationPeak Pressure Indicator Types:
DPA-CT-00140
Peak Pressure Indicator 140
Range: 0-140bar
DPA-CT-00180
Peak Pressure Indicator 180
Range: 0-180bar
DPA-CT-00220
Peak Pressure Indicator 220
Range: 0-220bar
DPA-CT-00250
Peak Pressure Indicator 250
Range: 0-250bar
DPA-CT-02000
Peak Pressure Indicator 2000
DoubleScale
Range: 0-150bar
0-2000Psi
DPA-CT-03000
Peak Pressure Indicator 3000
DoubleScale
Range: 0-225bar
0-3000Psi
DPA-CT-12116
Spare part set for Peak Pressure
Indicator
Mechanical Peak Pressure Indicator
The CMT Peak Pressure Indicator is an easy, fast and cost effective way to maintain your diesel engines.
Itmeasuresthemaximalfiringpressureandthecompressionpressureoftwoandfourstrokecombustionengines.Ithelpsbalancingandoptimizingyourengineandwiththatyouwillbeabletomakethemostoutofyourengineandfuel.
Bycuttingthefuelforonecylinderforashorttimeyoucaneasilydetectanypos-sibleblowbytoavoidunwantedlossofenergy.
Optimizingyourenginecannotbeeasier
withthehelpoftheCMTPeakPressureIndicator.
WehavedesignedthenewCMTPeakPressureIndicatorwiththeengineeronsiteinmind.Ithasbeendesignedforeasyoperationandtoprotectitsuserincaseofexcessivecylinderpressure.
Asafetyglassgaugeandprotectionbyablowoutbackwallarejusttwoexamplesforourfeaturestoavoidaccidentsduringtheusage.
EverysingledevicewillbetestedandcalibratedaccordingtoourISO9001qual-itystandardsandwillbesuppliedwithacalibrationcertificateprovingtheaccuracyofthedevice.
Your benefits:
• Preventsunbalancedpeakpressure
• Detectblowbys
• Helpstoavoiduncontrolledvibration
• Preventslossofefficiency
• Highaccuracyatallspeedsandpressureranges
• Extremelyrobust
• Steel-gaugeinsafetyconstruction
Overview
CMTs Training:
WeatCMTechnologiesGmbHunderstandthatthechallengeofprotectingthevesselagainstcostlydowntimeandoperatingitcosteffectivelyisputtinghighdemandsontheeducationoftheemployeesseeingtotheoperationandmaintenance.
Thereforeweareofferingtrainingtomakesurethatyouremployeesareproperlytrainedintheuseofatoolyouhaveinvestedin.
3
PREMET® M
Ordering InformationDPA-CT-12021
PREMET® M Device
-KISTLERPiezo-SMART-Sensor
-NewPremiumAnalysisSoftwarePREMET
Viewer)
DPA-CT-12022
PREMET® TDC pick up for 4-stroke
engines
DPA-CT-12023
PREMET® pair of Pick ups for 2-stroke
engines
DPA-CT-12024
PREMET® Fleet Management Software
DPA-CT-12027
15m Premet pick up connection cable
DPA-CT-12028
DPA evaluation service
Newly developed and part of CMTs modern range of Premet diesel per-formance analysers the PREMET® M is the way to go if you are looking for an economic approach to monitor your engines without sacrificing qual-ity and accuracy. Brand new technolo-gies give the user an unparalleled accuracy and will ensure you are get-ting results you can act on. Designed by marine engineers to be used from marine engineers the PREMET® M helps balancing cylinder load, optimize injection timing and detect worn or damaged engine components and thus reducing the engine’s oper-ating cost.
Balancing the cylinder load helps ex-tend engine life, increases efficiency, andreduces emissions to assist with environ-mentalcompliance.
Your Benefits
• Shockproveprotectoravailable
• Newlydesignedusinguptodatetechnology
• Newanalysissoftware
• FleetManagementsoftwareavailable
• Ruggeddesignforonboarduse
• Highaccuracy
• DNVGLEcoInsightready
• Economicinitialcosts
• ExchangeSensorwithoutnewcalibrationofthedevice
Properignitiontimingreducesexhaustgastemperatureandtherateofexcesscarbonbuild-up. Tuning the engine may reducespecific fuel oil consumption (SFOC). Foreach degree that the ignition is retardedSFOCincreasesbyapproximately2%.ThePREMET®Mmayprotectagainstcost-ly downtime by implementing predictivemaintenance. Major defects can be eas-ily detected. Engine maintenance can beplanned,thussavinginpartsandlaborbychangingenginepartsbasedonneed,notontimedintervals.
The PREMET® M has a rugged housingand uses a Kistler PiezoSMART pressuresensoroflatestdesignwhichisbeingcon-nectedtotheindicatorvalveofthecylinderfor ameasurement. 4-stroke engines canbe measured without pick up with highaccuracy but to achieve an even higheraccuracy a pick up can be used. For themeasurementof2-strokeenginesapairofpickup isavailableasoptionalextra.Theintegrated compensation of torsional vi-brationsenablesanunparalleledaccuracywhenmeasuringon2-strokeengines.
ThePREMET®M iscompact,easy touseandvery intuitive.Data isbeingexportedviaUSBandcanbeanalyzedfurtherwiththe software supplied together with thedevice. For personnel managing multiplevessels CMT offers a Fleet ManagementSoftware.
Thenon-volatilememory stores up to18enginerecordswithupto20cylindersperengine.The angle precision of the PREMET® Mis 0.17 deg. The max. cylinder pressurethe sensor can be used with is 400 bar.
Specification
Ignitionpressurerange 0-350bar
Sensor Kistler6013CSF
Speedrange 20-3000rpm
Max.numberofengines 18
Max.numberofcylindersoverallengines 125
Max.temperature 400°C
Compensationoftorsionalvibration P
Compensationofpressurevibration P
Displayalphanumeric,size75x25mm,
resolution20x4char
Accuracy 0.17%degreecrankangle
CMTechnologiesGmbHoffersameasure-mentevaluationservicetohelpyougettingthemostoutofyourCMTinstrument.Alsoindividualtrainingcoursescanbear-rangedeitheratCMT,atyourofficeorevenonboard.
PREMET®MwithSensor
4
PREMET® X
Ordering Information
DPA-CT-12020
PREMET® X Device
-KISTLERPiezo-SMART-Sensor
-NewPremiumAnalysisSoftwarePREMET
Viewer)
DPA-CT-12022
PREMET® TDC Pick up for 4-stroke
engines
DPA-CT-12023
PREMET® pair of pick ups for 2-stroke
engines
DPA-CT-12024
PREMET® Fleet Management Software
DPA-CT-12025
PREMET® Fleet Management Cloud
Subscription
Specification
Ignitionpressurerange 0-350bar
Sensor Kistler6019A11S
Speedrange 20-3000rpm
Max.numberofengines Unlimited
Max.numberofcylinders(perengine) 40
Max.temperature 400°C
Compensationpressure
Compensationoftorosionalvibration P
USBconnection P
WiFiconnection P
Displaycolor,size160x90mm,resolution800x
480
Accuracy 0.17%degreecrankangle
The PREMET® diesel indicators are known to be rugged and reliable. The newly developed PREMET® X now adds a brand new software, new sensor technology and connectivity to obtain, show, analyse and export the important pressure data of your diesel engine during operations. This device gives you the opportunity to fine tune your engine to a higher efficiency resulting in lower costs.
Compatiblewithlow-,medium-andhigh-speedenginesthePREMET®Xistheperfectsystemtooptimizeyourfuelinjectionstoreducefuelconsumptionbutalsotoavoidrepairsanddamagesaspartofaconditionmonitoringregime.ThePREMET®X,MadeinGermany,isusinghigh-qualitymaterialsandisequippedwiththenewestPiezoSMARTsensorfromKistlerSwitzerland.Latestdesignedenginesrunwithpeakpressuresupto300barandhighexhaustgastemperatures.Thenewsensortechnologyensureshighperformanceandaccurateresultsforthecompleterange.Thestorageofcalibrationdatainsidethesensormakesitpossibletoeasilyexchangesensorswithoutcalibrationofthedevice.
Thenewsoftwareallowstodoanindepthanalysisofyourengineensuringyouwill
beincontroloftheconditionoftheenginewithoutbeinganexpertuser.IfyourjobincludesresponsibilityformultiplevesselstheFleetManagementSoftwarewillmakeyourlifemucheasierandforworldwideaccessCMTisofferingaCloudsolutionaswell.TheintegratedWiFiconnectionincreasestheeaseofdatatransferconsiderably.
AWiFinetworkwithaninternetconnection,whichcaneasilybeestablishedwithastandardmobilephoneinthenextportwillallowanautomateduploadofthedataintothecloud.
Your benefits:
• Revolutionarynewsensortechnology
• Newanalysissoftware
PREMET®XwithSensor
ThelargeinternalmemoryofthePREMET®Xallowstosaveasmanyenginesetupsasyoulikeupto40cylindersperengine.Theintegratedcompensationoftorsionalvibrationsenablesultraaccuratemeasurementsfortwo-strokeengines.Four-strokeenginescanbemeasuredwithanextraTDCsensorwithhighaccuracy.ForevenmoreaccuracyaTDCsensorcanbeusedwiththePREMET®X.
Usinganacousticemissionsensorthefuelinjectioncanbemonitoredwithnoneedtotamperwiththehighpressurefuellinesduringinstallation.Ignitiondelayandothercriticaltimingsduringcombustionwillbecomevisible.
CMTechnologiesGmbHoffersameasurementevaluationservicetohelpyougettingthemostoutofyourCMTinstrument.AlsoindividualtrainingcoursescanbearrangedeitheratCMT,atyourofficeorevenonboard.
• WiFiconnectionforeasydatatransfer
• Ruggeddesignforonboarduse
• Highestavailableaccuracy
• DNVGLEcoInsightready
• CloudbasedFleetManagement
5
Acoustic Emission (AE) waves are commonly defined as transient elastic waves within a material caused by the release of localized stress energy. Hence, an event source is the phenomenon which releases elastic energy into the material, which then propagates as an elastic wave.
AEeventsthatarecommonlystudiedamongmaterialfailureprocessesincludetheextensionofafatiguecrack,orfibrebreakageinacompositematerial.
AEisalsorelatedtoanirreversiblereleaseofenergythatcanbegeneratedfromsourcesnotinvolvingmaterialfailureincludingfriction,cavitationandimpact.Acousticemissionscanbedetectedinfrequencyupto100MHz.
Specifications
FrequencyRange: 200-700kHz(AcousticEmission)
OperatingTemperature: 130°C
PowerSupply: 5.0+/-0.25VDC
OutputSignal: 0.5-4.0VDC
Attachment: AlnicoMagnet,5.2kgpullforce
Diameter: 26mm
Connector: Neutrik,NC4MP-BAG
Ordering Information
DPA-CT-12026
Acoustic Emission Sensor
TheViewerhelpstoanalysethecombustionprocess,storethemeasurementsindatafiles,printdiagramsorcompletereportsandsentdatafilesbyE-mailtotheoffice.
Thesoftwarefacilitatestheevaluationoftheenginecondition.Avarietyofdiagrams,barplotsandtablespresentthemea-surementsincl.manuallyentereddatainanuser-friendlyway.
Thesoftwaremakesiteasiertocomparecurrentwithreferencedataandthusdetectwornpartsorincorrectadjustment.
Ithelpstoreducetheengine’soperatingcosts.Cylinder-to-cylinderloadbalancingandcorrectfuelinjectionsettingswilloptimiseengineperformanceandminimizespecificfueloilconsumption.
Leakingnozzle
Fuelafterburning
TheAcousticEmissionSensorsisapiezoelectricsensorwithbuilt-inamplifierandsignalconditioning.Itisoptimisedtodetectswavesintherangeof300to700KHz,whicharecausedbytheinjectionofthefuelthroughthenozzle,exhaustgasflowthroughthevalve,impactoftheinjectorneedle,closingandopeningofthefuelpumpspill.
TheAEsensorisusedtomeasuretheangleatwhichtheseeventsoccurandtodetectdeviationsininjectiontiming,lateburningoffuelinthecylinder,leakinginjectors.
TheoptionalAcousticEmission(AE)SensorcanbeusedforthePREMET®X,PREMET®SingleSensorandPREMET®24/7.ItisnotsuitablefortheusewiththeECONDieselIndicator.
Your benefits:
• Nopenetrationofthefuelsystem
• Eliminatespossiblefuelleakage
• Applicablefor2-strokeand4-strokeengines
PREMET® Viewer
6
PREMET® Online - Single Sensor
Your benefits:
• UsesexistingPCtomeasureengineperformance
• USBCJBwithlifetimeguarantee
• Fastmeasurement(8cylindersin5minutes)
• Real-timecylinderandfuelpressuremeasurements
• Smalldatafiles(31KBfor7cylinderengine)
Coloradoan connectors
• Nowiring
• Easyinstallation
• Nogroundingproblems
Powered by the PC
• Isolatedpressuremeasurementchannel
• Eliminates220/110voltageproblems
• Smallmetaljunctionboxes
• Easytroubleshooting
• Repairsbycomponentexchange
Handheld repeater unit
• One-manoperation
• Tuneenginewhilemeasuring
Ordering Information
Customizedsystem
-Pleasecontactourofficetodiscussdetails-
The PREMET® Online - Single Sensor has been developed to be used for one up to four engines, monitoring the cylinder pressure and fuel injection system.
Operatingcosts,especiallylabourandmaintenancecosts,canbeminimized,enginedowntimesgetshortened.Theintentionistooptimiseengineoperationswhilesavingtimeandinvestigations.
7
PREMET® Online - 24/7
Technical Data Sensor
MeasuringRange: A24(0...200bar),A14(0...103bar),A34(0...300bar)
Sensitivity: A24(50µA/bar),A14(100µA/bar),A34(33,3µA/bar)
Overload: 300bar
Connector(IP67): M12x1
Linearityat23°C: <±0,75%FSO
MountingTorque: 15N•m
ZeroPoint(nopressure): 10mA
SignalStrokeFSO 10mA
Operatingtemp.range,Sensorfront: -50...350°C
Operatingtemp.atcableconnect.: -20...200°C
Operatingtemp.Chargeamplifier: -10...85°C
SupplyVoltage: 16...30VDC
Weight: 150g
Ordering Information
Customizedsystem
-Pleasecontactourofficetodiscussdetails
Your benefits:
• Longerlifetimeofcomponents
• Optimizedmaintenanceplanning
• Earlyfaultdetection
• Increasedoperationalsafety
• Lowerfuelconsumption
• Easytechnicalreporting
Data Logger Box( CA 04204 )
PC in Remote Location( engine control room )
Cat 5/6Ethernet cable
max length 100m( CA 04106 )
Extension Cable1x15
( CA 04007 )
Pair of pick-ups withMagnetic TDC Pick-up
( CA 04058 )
Pressure Sensor Cable Cyl N( CA 04102 )
Cylinder PressureSensor
Kistler 6613CQPermanent mount
Scavenging AirPressure Sensor
( CA 04110 )
N - Cylinder Numberfrom 4 to 16
Scavenging AirPressure Sensor Cable
( CA 04111 )
MAIN ENGINE MONITORING SYSTEM
Electromagnetic AcousticEmission Sensor, 15m cable
( CA 04127 )
Ship Speed
Flow MeterNetwork
Junction Box( CA 04205)
TDC
Flywheel
Torque Meter Pressure Sensor Cable Cyl 1( CA 04102 )
Your Features:
• Synchronouscylinderpressuremeasurementofupto16cylinders
• 3x4-20mAInputs
• 4xDigitalOutputs
• 2x62DiagramsBuffer
• p(max)alarmrecord
• USBdatatransfertoPC
The PREMET® Online 24/7 is the most advanced system for continuous diesel engine performance. It has been developed to be used for one Main Engine Only.
Itcanmonitorupto16cylindersandlogthedatapermanently.TheElectronicCombustionAnalyserisacomprehensivesystemforcontinuousengineperformancemeasurementandmonitoringwhich
willprovidethekeyknowledgeforobtainingoptimumandreliableengineperformancedata.Usingthecombus-tioninformationyouwillhaveminimumenginewear,anoptimumemissionandfuelconsumption.
8
Efficiency and Performance Monitoring
Recording the fuel performance is important to run a sea-going vessel efficiently. With the rising prices of fuel and the ecological awareness it gets more impor-tant to monitor the fuel consumption.
Especiallylargeshipsrequirelargeamountoffuelanditisnecessarytomonitorthefuelconsumptiontoguaranteeanef-ficientperformanceaswellastoobeythenewEUguidelinesforCO2reporting.
CMToffersaneasywaytomonitortheperformancebasedontheactualuseoffuelongivendistances.Thesystemcannotonlymonitortheengineperformance,butalsothewholeshipsefficiencywhichincludespropellerandhull.
Fuel Performance and CO2 Reporting
Ordering Information
FPS-CT-18002
Fuel Performance System FPS
FPS-CT-18003
FPS External Display
Size: 3,4inch
FPS-CT-18004
Flow Meter for FPS
FPS-CT-18005
Power supply for FPS
Power: 24VDC/230VAC
FPS-CT-18006
Analogue output modul
Output: 4channels
Current: 4-20mA
FPS-CT-18007
Interface modul
RS485,RS422,RS232port
FPS-CT-18008
Digital input modul
Input: 8channels
Power: 24VDC2,5H
One of the large and still growing emission sources is the greenhouse gas, produced by international shipping. Due to that matter the EU wants to reduce the CO2 emissions from maritime transport of EU flag states. The level of 2005 should be lowered at least by 40% until 2050.
Asafirststep,largeshipsusingEUportswillberequiredtoreporttheirverifiedannualemissionsandotherrel-evantinformationfromJanuary2018.
CMToffersanewonlinemonitoringsystemforfuelperformanceandCO2reporting.TheSystemFPS 2.0requiresminimummaintenanceandhasthefol-lowingconcept:
• SimplestandardPLCsystemwithclasstypeapprovalcertificate
• Webbasedopenconfiguration
• 2ndscreeninECRtodisplaymainvalueswithstatus
• Datahistoryonboard&dataex-portonshore
• Standarddatainterface(openstructure)4–20mA,0–10V,pulse,NMEA,ModbusSlave
• Engineperformanceorreportofallavailabledata
TheSystemhasawebbasedvisualiza-tionwhichenablesaccesstomeasureddataovereverycomputer.Thereforeyourperformancecanbemanagedeverywhere,nomatterifitistheoffice,thebridgeortheECR.
FortheCO2reportingitisfurthermorerequiredtodeterminetheactualdensityofthebunkeredfuelandthefuelintheindividualtanks.Thefollowingmethodsareallowed:
• On-boardmeasurement
• Fuelsupplier
• Laboratorytest
Whilethefuelsuppliercanonlyspecifythedensityofthefueldeliveredthefuelintankscanonlybemeasuredonboardorinalab.
CMTdoesprovideasimpleandcosteffectivemethodofmeasuringden-sityon-boardavoidinghighlaboratorycosts.(Seedensitysection)
Specific fuel consumption
Engine performanceFuel efficiency
Propeller curve
9
Shaft Power Meter
The CMT Shaft Power Meter is the cost effective solution when reliable shaft power measurement is required. It is a permanent monitoring system which continuously measures the shaft (effective) torque, power and RPM.
TheShaft Power Meteritselfconsistsoftwometaltapeswithmagneticpattern,twosensorsandatransmitter.
A4-20mAsignal,proportionaltotheshafttorquein%oftheMCRvalueisaveragedbyapresetnumberofupto255consecutiverevolutions.
The4-20mAtorqueoutputandthepulseRPMsignalcanbeconnectedwithanyshipautomation.ShaftpoweriscalculatedbytorqueandRPM.AlldatacanbetransferredtoaPCviatheUSBconnector.
Themeasureddataissavedinapresetperiod.
Thesoftwaredisplaystrendsofthesaveddataandthecurrentandsavedmeasurementsonthemainenginepower/rpmdiagram,asdefinedbytheenginemanufacturer.
ThemeasureddatacanbeexportedinanExcelcompatibleCSV(CommaSeparatedValues)fileforfurthercalculationsandanalyses.
Thesystemiseasytoinstallandrequiresnoelectronicpartsontheshaft.Thesystemoperatesabsolutelycontactfree.
Themicroprocessorbasedtransmitterdetectstheshiftofpulsesofthesecondtape(thetwistoftheshaft),causedbythetorqueandcalculatestheactualtorquereading.
Scope of delivery
• PlateforfixingtheUprofile
• U-profiledBracketforSensorholder(Dependingondistanceofshipframetoshaftsurface)
• Sensorholder(U-profiled)
• 2SPMSensors
• Magneticbands(lengthisdependingonShaftdiameter)
• Rubbertocoverthemagneticbands
• 2convertingboxes(130x110x80)
• Controlcabinet(300x200x150)
Ordering Information
SPM-CT-18001
Shaft Power Meter System
Contactfreemethodforpermanenttorque
&powermeasurement
Shaftdiameter: 200-1200mm.
Speed: 0-800rpm
Sensor: Contact-free
Electrical installation SPM
ElectricalinstallationShaftPowerMeter
• PowersupplyatinstallationpointconverterboxShaftPowerMeter24VDC
• PositioncontrolcabinetShaftPowerMeter(overviewdrawingrequested)
• Powersupply110/240VAC,50-60Hz,2A
• LANconnection
• RemoteLCDdisplay(separatepowersupply24VDC,0,3Arequired)
• LCDdisplayincontrolcabinet
• Lengthofcableconvertingbox(analysisboard)tocontrolcabinet
• LengthofcablecontrolboxtoremoteLCDdisplay
Following questions need to be clarified prior final quoting:
• Shaftdesign/diameter/hollowshaft/(drawingtobeprovided)
• Materialspecificationoftheshaft
• Installationconditions(photos)
• Distancefromshipframeinstallationpointtoshaftsurface
• Freespaceforinstallationofsensorbracketscontactlesstoshaft(min.1,5m)
10
Transmitter Output Signals
Output1: 4-20mA(Shaftrpmsignal)
Output2: 4-20mA(Shaftpowersignal)
Output3: 4-20mA(torquesignal)
Output4: 4-20mA(freeconfigurable)
RPMatMCR: 0-800RPM
SensorAccuracy +/-0.1%torque
Operatingtemp.: 0...50°C
PowerSupply: 24VDC
Your benefits:
• Simple&EasytoInstall,plug&play
• Costeffective
• Noinstallationofelectronicorelectriccomponentsonshaft
• Easytore-installafterstern–tubeinspections;
• Zerocalibrationproceduredonebythepushofabutton
• MaintenanceFreeSystem
• ContinuousActual(effective)PowerOutput
• RealTimeMeasurementsofanyDieselEngine
• ShaftTorquein%oftheMCRvalueaveragedbyupto255consecutiverevs.
• Givesfeedbackaboutenginebalancing
• Expandabletofuelperformancesystem
Features
• PCLbasedsystem
• ContactFreeDigitalSensors
• HighPrecision,timeresolutionof100nanoseconds
• RPM,TorqueandPowersignalsstoredonSDcard
• KeycomponentforfuelperformanceSystem
• Noneedtoprovidepowertothecomponentsontheshaft
• Noneedtotransferanysignalsfromrotatingcomponents
• NotAffectedbyCentrifugalForces,temperaturechange,propellerthrustorshaftmisalignmentandstress
• NoMechanicalWear,Nozerodriftingovertime;
11
The evolution of the PREMET® starting with the Steam Engine and James Watt
1885
1910
1912
1942
1994
1996
2007
2016
2018
1782
1946
Hugo Maihak improves Watt’s engine indica-tor.
James Watt invents the first steam indicator for measuring the varying pressure within a steam engines cylinder.
Foundation of the H. Maihak Aktiengesells-chaft, which from then on produces the Maihak indicators type 25 and 50.
Relocation of the Lehmann and Michels AG from Hamburg to Meerane/Saxony due to the destruction of the companies building and foundation of the LEMAGFeinmesstechnik GmbH.
Relocation back to Hamburg. Ongoing production of the indicators type 25 and 50.
The first electronic indicator with its own piezo-electric sensor is being sold underthe brand name PREMET®.
Market introduction of the second generation with color display named PREMET® C.
Insolvency of LEMAG. CMT takes over the PREMET® production and personnel.
Market introduction of the modern third generation of the PREMET® indicators as suc-cessors for the PREMET® C, HLV/PPG as well as the DieselSCOPE combining the advantages of their predecessors.
Take over of Baewert GmbH by the sensor manufacturer Kistler from Switzerland.
CMT takes over the HVL/PPG indicators of Kistler from Switzerland.
The two engineers Lehmann and Michels of the H. Maihak Aktiengesellschaft found the Lehmann und Michels AG (LEMAG) who further improve the indicator.
Foundation of the Metallwerker GmbH (later Baewert GmbH) by former employees at the old site in Meerane which from then on operates in competition for indicators.
Development of an electronic indicator with piezo-electric sensor called HLV.
DO-C10073-CT (Issue 5)
CMTechnologiesGmbHMarie-Curie-Str.5
25337Elmshorn,GermanyTel:+49(4121)700890
Email:[email protected]:www.CMTechnologies.de
