Extech Instruments RPM33 - Preparing for Measurements; Non-Contact Tachometer Preparation; Contact Tachometer Preparation

RPM33-EU-EN V1.3 4/13
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PreparingforMeasurements
Non‐Contact(Photo)TachometerPreparation
1. Applyasquarepieceofreflectivetapetothe surfaceoftheobjectundertest(nominaltape
size:0.5”/12mm).Besuretoaffixthetapeasclosetotheouteredgeoftheobjectundertest
aspossible.Seediagrambelow.
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2. Ifnotalreadydone,unscrewandremovethemetercollar(itemnumber3intheDescription
sectiondiagram)
3. Proceedtothe“TakingMeasurements”sectionbelow.
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ContactTachometerPreparation
1. Ifnotalreadydone,attachthecollar(itemnumber3inthe Descriptionsectiondiagram)to
themeter.
2. Slidethecontactadaptorontothetachometer’sshaft.Besuretoaligntheadaptorwiththe
alignmentpinonthe shaftofthecontactadaptor.
3. Attachacontactmeasurementaccessory(cone,wheel,orconcaveaccessory)ontothe
contactadaptor.
4. ForContactoperationthemetercanmeasureSurfaceSpeedorLength.Readthe section
titled“SurfaceSpeedandLengthMeasurementModes”laterinthisguidefordetails.
5. Followthestepsinthe“TakingMeasurements”sectionbelow.
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