Extech Instruments RPM33 - Contact Measurement Procedure; Measurement Modes and Units

RPM33-EU-EN V1.3 4/13
7
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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