User manual

EXTECHINSTRUMENTS
2VB450‐en‐GB_V1.06/15
Introduction
ThankyouforselectingtheExtechInstrumentsModelVB450.
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TheVB450isaportablevibrationmeterconsistingofanaccelerationsensorandadigital
measurementdisplaycircuit.Itcanbeusedtomeasurevibrationdisplacement,speed(or
intensity)andaccelerationofmechanicalequipment.Equipmentsuchasfans,pumps,
compressors,motors,etc.canbetested.
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Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovideyearsofreliable
service.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionofthisUser
Guide,ProductUpdates,ProductRegistration,andCustomerSupport.
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SafetyNotes
Warning:Useextremecarewhenusingthisvibrationmetertotestmechanicaldevices.Damageto
meterandinjurytopersonscanoccurifthismeterisusedinamannernotspecifiedinthisUser
Guide or if nominal, preparatory safety measures are not taken.Please refer to, and follow, the
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safetydirectivesbelow.
o Donottakemeasurementsondeviceswheretherangeisknowntobe,orexpectedtobe,
outsidethespecifiedmeasurementrangeofthisdevice.
o Donotusethisinstrumentifitshousingappearscracked,chipped,orotherwise damaged.
o Donotusethisinstrument
ifthesensororitscableappearsdamagedorcompromisedinany
way.
o Replacethebatteryassoonasthelowbatterysymbolappearsonthemeterdisplay.
o Removethebatteryifthedeviceistobestoredfor>60days.
o Neverdisposeofbatteriesinafire.Batteriesmayexplodeorleak.
o Donotattempttochargethe9Vbattery.Thesupplied9Vbatteryisnotrechargeable.This
meterwasnotdesignedtouserechargeablebatteries.
o Ifthemeteroperatesabnormally,stoptestingandhavetheunitservicedbeforefurtheruse.
o Neverusethemeterinawetenvironmentorinanatmosphereofcombustibleorexplosive
gas.
o Donotopenthemeterhousing;therearenouser‐serviceableparts.ContactExtech
Instrumentsdirectlyorcontactpoint‐of‐salepersonnelforserviceinquiries.
o Protectthemeter’sLCDfromshockorvibration;allowonlythemagnetandsensortotouchthe
devicesundertest.