Extech Instruments MO55

MO55‐en‐GB_V1.002/16
5
DisplayLock
PresstheDisplayLockbutton tofreezethedisplayedreading.The iconisvisibleonthe
displaywhenDisplayLockisactive.Press
againtoreturntothenormaloperatingmode.
BeeperON/OFF
ThebeeperdefaultstoON.ToswitchthebeeperOFF,pressandholdtheDisplayLock/Audible
Beeperbutton untiltheicondisappears.Whenthebeeperisactivetheaudiodisplayicon
willbevisible.
Pin‐ModeSelf‐Test
TurnonthemeterandsetthemetertoPinmodeWoodorBuildingmaterialsandthentouch
theelectrodepinstothecontactsthroughtheholesatthetopoftheProtective/Testcap.
Expectedresult:Wood17.0to19.0%;Building15.5to17.5%
Whenthemeterreadsoutsideofthese
rangespleasereplacethebatteryandretry.Ifthemeter
continuestoreadoutsideoftheseranges,themetershouldbereturnedforservice.
PinlessModeComparisonMeasurements
Whileholdingthemeteragainstaknowndrysurface,turnonthemeter.PresstheMode(M)
buttontosteptothepreferredsetting,blinkingwoodorblinkingbuildingmaterialicon.The
meterwillnowread0%(relative/offsetreading).Nowmovethemetertootherareastotestto
findhigher
levelsofmoisture.
Maintenance
BatteryReplacement
Whenthebatterystatusicon appearsemptyorflashing,replacethebattery.
1. Removetherearbatterycompartmentcoverbypushingthecompartmentlatch.
2. Replacethe9Vbatteryobservingcorrectpolarity.
3. Replacethecompartmentdoorsecurely.
4. Disposeofbatteryresponsiblyandwithinapplicablelegalregulations.

Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.
Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriatecollectionsites,the
retailstorewherethebatterieswerepurchased,orwhereverbatteriesaresold.
Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuseris
obligatedtotakeend‐of‐
lifedevicestoadesignatedcollectionpointforthedisposalofelectricalandelectronicequipment.
CareandCleaning 
 Whentheinstrumentisnotinusepleasekeeptheprotectivecapinplace.
 Storethemeterinastable,dust‐freeenvironment;outofdirectsunlight.
 Removethebatteryfromtheinstrumentifthemeteristobestoredforlongperiodsorif
thebatterypower
symbolappearsempty(orflashing)onthedisplay.
 Tocleanthemetercase,wipewithadampclothdonotusesolventsorabrasives.
 Tocleanthepins,wipecarefullywithadampclothtoremoveresidue;allowtodrywell.
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