MTI PBS-4100 Jet Engine Trim Balancing System - MTI Instruments ...

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PBS-4100 solves toughbalancing problemsThe PBS-4100 system isoften able to balanceengines that have beenruled “unbalanceable” byother methods, saving thecost of engine removaland teardown.Two-Plane BalancingThe PBS-4100 canperform two planebalancing (both fan andturbine) at one speed ormultiple speeds, anabsolute requirement formany newerengine designs. Itcalculates solutions forboth the fan and theturbine; you can chooseto install balance weightsin either or both planes.Multispeed BalancingThe PBS-4100 is able tobalance engines thatexhibit vibration peaks atmore than one enginespeed. You may specifya set of up to 20 speedsat which you wish toreduce vibration. ThePBS-4100 will provide theoptimum balance solutionfor the entire set. You alsocan bias the solution byassigning a higher priorityto one or more speeds.Multichannel The PBS-4100 accepts two vibrationchannels simultaneously.As an option, theinstrument can beconfigured to accept up tofour channels and asecond tachometer signal.System ExpandabilityThe PBS-4100 can beexpanded to meet yourfuture balancing needs.New software features arebeing developedcontinually and are madeavailable for easyinstallation to increasesystem capabilitiesand accommodate newengine designs.Customer comments about the PBS-4100:“The PBS-4100 is greatwhen I have to get anengine balanced beforecurfew. I can balance anengine in less than halfthe time it used to take.”“We are trim balancingmore engines nowbecause the PBS-4100 isso fast. It’s easier towork a trim balance intoour maintenanceschedule. Our fleetaverage vibrationlevels are way downand we’re getting farfewer crew squawks.”“The key factor for us isthat we can use thesame piece of equipmentfor all our aircraft.No matter what enginewe add to our fleet,we’re sure the PBS-4100 will be able tohandle it.”“The oscilloscopefeature is very handyfor zeroing in on badcables and sensors.”Airlines keep more planes flying when they use the PBS-4100.Balancing is done faster and more accurately than ever before.“A very user-friendlyinstrument.. easy tolearn . . . the practicemode is great fortraining.”“We bought the PBS-4100 on the basis ofestimated savings infuel costs for groundtests. It saved us thefuel, but the realpayback has been itsability to balanceengines that previouslywe would have pulledoff the wing.”“We evaluated everysystem on the marketand found that the PBS-4100 is the best unit forengine balancing. Weintend to equip all ourmaintenance bases withPBS-4100s.”
Advanced balancing and diagnostic capabilitiesThe PBS-4100 system is more than an easy-to-use balanceanalyzer. It gives you a full range of diagnostic capabilities thatidentify engine problems and prevent wasted time and effort.VIBRATION SURVEY ANALYZER and TRACKING FILTERPlots engine vibration (broadband, tracked N1 and optional N2/N3) acrossthe entire engine speed range. It allows you to determine how muchvibration is caused by engine unbalance and how much is caused by otherfactors. You won’t waste hours trying to balance an engine when balancingwon’t solve the problem.This feature also allows you to identify speeds where vibration peaks occur.The PBS-4100 provides a balance solution to reduce vibration at all peakssimultaneously.TypeDataCollectionAcceleration only, decelerationonly, accel/decelor decel/accelFREOUENCY SPECTRUM ANALYZERProvides a high-resolution frequency spectrum that breaks thevibration signal into its components. This reveals which enginesystems are causing vibration problems.TypeChannelsFrequencyRangeA high speed digitalsignal processorconstantly collectsvibration and speeddata from all enabledchannels.High-resolution 400or 800 line spectrumwith resolutionenhancement.Uses all enableddata channels. Anychannel may beenabled or disabledindividually.10 to 10,000 HzChannelsDisplaysSpectrumDisplayWaterfallDisplayUses all installed andenabled data channels.Any channel may beenabled or disabledindividually.Vibration vs. speed datadisplayed in color codedreal-time graphics. Otherselectable options ofdigital and bar graphformats. Broadband andcomponents color coded.X-Y plot of vibrationamplitude vs. frequency.Both plot axes can beexpanded for betterresolution, including autoscaling and zoom.Valuable 3D plot ofspectrum vs. time.Viewing perspective canbe changed and all plotaxes can be expanded forbetter resolution, includingauto scaling and zoom.DIGITAL OSCILLOSCOPE AND VOLTMETERProvides a live display of the quality of vibration signals. You won’t wastetime working with bad data or trying to solve instrumentation problemsthrough trial and error.The vibration survey helps the user select theengine speeds at which balancing is required.The 400 or 800 line frequency spectrumpinpoints the sources of engine vibration.Waterfall spectra identify changesduring speed changes.TypeFree running dataacquisition provides realtimedisplay. Users mayselect time and voltageaxis ranges including autorange functions. Zoommode allows detailedview of wave shape.ReadoutsVoltageand TimeAxisDigital display of volts(pk-pk, rms, and dc)Amplitude for eachchannel.Auto ranging or userdefinable voltageaxis settings.ChannelsSwitch between anyof the enabledvibration channels.SpeedDisplayContinuous displayof current enginespeed in rpm and% of full speed.The oscilloscope display can be used to detect faultysensors and other instrumentation problems.
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MTI PBS-4100 Jet Engine Trim Balancing System - MTI Instruments ...

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