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EPMXPElectronic Indicator

For Diesel Engines

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EPMXP Electronic Indicator... its components and high accuracy 

 Application on a twostroke engine

Instrument case incl. all components

 The Electronic Indicator Type EPMXP from IMES is a userfriendly instrument for measuring combustion pressure onengines. It is ready for use without set upontheengine.

 The EPMXP replaces tradit ionalmechanical indicator, and hence no

planimetry or manual calculation isrequired.

 The well proven cylinder pressure

sensor type HTT is used for measuring the combustion pressure at the indicatorcock valve and then moved from onecylinder to another in order to completemeasurements on all cylinder.

 This robust HTT sensor is characterizeby its high degree of accuracy and long term stability, and can be readily used on th e indica tor valve , eve n at high temperature.

 The comparison to the water cooledpiezoelectric reference sensor showsexcellent thermodynamicresults.

HTTsensor in comparison to water cooledreference sensor

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...the unique instrumentincluding longlife HTTsensor

Operation

 The numerical measurement data isshown instantly after measurement on the LC display. Changes in both thepeak pressure and the overall variationin combustion pressure can be detec ted and recorded with the included vi

sualisationsoftware.

Pmax Maximum peak pressurePmin Minimum peak pressurePmean Averagepeak pressurePcomp Compression pressure on

 two stroke applicationdp/ca Maximum gradientof 

pressurecurve

  easuring functions

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EPMXP replaces mechanical indicator....no time consuming planimetring diagrams

Conventional mechanical indicatorsare only partly suited to modern internalcombustion engines, since they can nolonger achieve the required accuracy as peak cylinder pressures and temperaturesrise.

 The EPM XP El ect roni c Ind icat or features temperature compensationover its entire measurement range andmeets engine manufacturers exactingrequirements for accurate pressureindication.

 The interpretation of cylinder pressuremeasurements from a strip of paperrequires training and takes con

Conventional mechanical indicator

Paper strip of combustion curve

si In addition, the manualinterpretation process is a source of potential errors.

derable time.

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User friendly Electronic Indicator...easy to apply on engines

sure cycles (pressure/time).The storeddata can be transfered from EPMXPviaUSBport toPC.

 The EPMXP is suitable for all marineengines with speeds from 50...1500

RPM.

 This battery powered ElectronicIndicator EPMXP provides importantm e as u re m en t d a ta f o r e n gi n ediagnostics directlyat thepoint of use. Itmeasures the peak pressure (Pmax)an d c a lcu late s t h e c om bu s tion

pressure curve from a number of pres.

EPMXP connected via USB cable to PC   Pressure curve displayed

Charging process of standard rechargeable 9V monoblock battery willbe done via USBport of PC and

does not require additional chargingstation in order to reduce componnents.

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Monitoring of combustion data 

Peak pressure deviation of eachindividual cylinder can be compared to the actual calculated average peakpressure of the engine before and aftermaintenance work.

Pcomp value is automatic calculatedon twostroke applications.

 The pressure curves of all enginecylinders can be overlapped a particularly useful feature for ferifying the balancingoftheengine.

Cylinder pressure curves can be storedand compared as data files. It is alsopossibleto zoomcurves for details.

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...with Electronic Indicator

 A clear and consistent PerformanceR e po r t o f r e l ev a nt c o mb u s ti o nparameters will form the data base forrel iable verification of the enginecondition.

 The Engine Report will automatically saved as a file on the PC and sent by email to the ship operator office.

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EPMXP

Electronic Indicator

 for Diesel Engines