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RPM33-EU-EN V1.3 4/13

ContactTachometerMeasurements

1. PrepareforContactmeasurementsasdescribedintheMeasurementPreparationsection

above.

2. DetermineifSurfaceSpeedorLengthmeasurementsaretobemade.Refertothesection

“SurfaceSpeedandLengthMeasurementModes”laterinthisguidefordetails.

3. PressandholdtheMEASUREbutton.

4. Touchthemeasurementaccessory(cone,wheel,orconcaveaccessory)totheobjectunder

test.

5. ReadthemeasurementresultfromtheLCDdisplay.

6. WhentheMeasurebuttonisreleasedthelastreadingwillremainonthedisplayfor5to10

secondsbeforethe‘AutoPowerOFF’featureswitchesthemeterOFF.TheHOLDdisplayicon

willswitchON.

7. Tochangetheunitofmeasure,firstreleasetheMEASUREbutton.Then,momentarypresses

oftheMODEbuttonwillstepthroughtheavailableunits.RefertotheSpecificationssection

andtothesectionbelowentitled“SurfaceSpeedandLengthMeasurementModes”forunits

ofmeasuredetails.

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SurfaceSpeed,Length,andRevolutionsMeasurementModes

1. ToswitchbetweentheSurfaceSpeedandtheLengthmeasurementmodes,pressandhold

theMODEbuttonfortwoseconds.

2. TheunitsofmeasureavailableintheSurfaceSpeedmodearemetersperminute(M/M),

inchesperminute(I/M),feetperminute(F/M),andyardsperminute(Y/M).Stepthrough

theunitsselectionswithmomentarypressesoftheMODEbutton.

3. TheunitsofmeasureavailableintheLengthmeasurementmodearemeters(M),inches(I),

feet(F),yards(Y),andrevolutions(REV).TheRevolutions(REV)modeishandyasacounter

forusewithcustomsizedwheelattachmentstocount(tally)wheelrotations.Stepthrough

theunitsselectionswithmomentarypressesoftheMODEbutton.

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Extech Instruments RPM33 User Manual

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