Spectra Precision LL300N-3 User Manual

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Charging the batteries

Thechargerrequiresapprox.10hourstochargeemptyrechargeablebatteries.Forthischarging,connectthe

plugofthechargertotherechargejackoftheunit.Neworlong-timeout-of-userechargeablebatteriesreach

theirbestperformanceafterbeingchargedandrechargedvetimes.

Thebatteriesshouldonlybechargedwhenthelaserisbetween50°Fand104°F(10°Cto40°

C)Chargingatahighertemperaturemaydamagethebatteries.Chargingatalowertemperature

mayincreasethechargetimeanddecreasethechargecapacity,resultinginlossofperformance

andshortenedlifeexpectancy.

HOW TO USE THE LASER

Laser Setup

Positiontheunithorizontally(tripodmountandrubberfeetdownward!)onastableplatform,wallmount,or

tripodatthedesiredelevation.

Pressthepowerbutton(1)toturnontheunit.TheLEDs(3,4and5)areturnedonfor3seconds.Self-leveling

willstartatonce.Theunitisleveledwhenthelevelingindicator(3)isnolongerashing(onceeverysecond).

Therotorwillnotspinuntiltheunitisleveled.Fortherstveminutesafterthelaserselflevels,theLEDlights

solidthenasheseveryfoursecondstoletyouknowthelaserisstilllevel.

Inordertoswitchtheunitoff,pressthepowerbutton(1)again.

If the laser is positioned beyond its self-levelingrangeof ±8%, the manual and leveling indicators ash

simultaneouslyandawarningsoundisemitted.Repositionthelaserwithinitsself-levelingrange.

Self-leveling, Height Change (HI) Alert

Onceturnedon,theunitautomaticallylevelsitselfinrangesof8%(±0.8m/10m).Inordertorecognize

thelevelingprocessatthemeasuringareaandinordernottomarkfaultyheightsduringthisoperation,the

rotationstops.

Onceleveled,theunitconstantlymonitorsitslevelcondition.Theheightchange(HI)alertisactivated5minutes

afterself-levelingwasperformedandthelaserisrotatingat600min

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Levelerrors>30mm/10mputtheunitintoalertmodebecausetheyaregenerallycausedbyadisturbance

thatcouldleadtoinaccuratemeasurements.Whenenteringintoalertmode,theprismstops,thelaserbeam

turnsoff,awarningsoundisheardandtheHIWarningLED(4)ashes2xpersecond.Turntheunitoffand

thenonagain.Toensureyourformerelevation,nowyouhavetocheckorarrangetheexactheight.

Manual Mode/Single Slope Mode

Whenyoupressthemanualbutton(2)onthelaser,theremotecontrol,orthereceiver-remotecontrol,thelaser

issetfromautomaticself-levelingmodetoManualmode.Manualmodeisindicatedbytheashing(onceevery

second)redLED(4).InManualmode,theY-axiscanbeslopedbypressingtheUp-andDown-Arrow-buttons

ontheremotecontrol.Additionally,theX-axiscanbeslopedbypressingtheLeft-andRight-Arrow-buttons

ontheremotecontrol.

Whenyoupressthemanualbuttonagainontheremotecontrol,thelaserissetintoSingleSlopemode.This

isindicatedbytheashingred(4)andgreen(3)LEDs(onceeverysecond).InSingleSlopemode,theY-axis

canbeslopedbypressingtheUp-andDown-Arrow-buttonsontheremotecontrol,whiletheX-axisremains

inautomaticselflevelingmode(e.g.whensettinguprampsordriveways).TheHeightchange(HI)alertis

stillactive.

Pressingthemanualbuttonatthelaserorremotecontrolagain,changesthelaserbacktoautomaticself-

levelingmodeasindicatedbytheashinggreenLED(3).

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Spectra Precision LL300N-3 Laser Level, Self Leveling Kit