Extech Instruments LT10 Bedienungsanleitung

USERGUIDE



PocketLightMeter



ModelLT10



Shop for Extech products at: 1.888.610.7664

ShopExtech.com

2LT10‐en‐GB_v1.14/15

Introduction



ThankyouforselectingtheExtechInstrumentsModelLT10PocketLightMeter.TheLT10measuresand

displayslightintensityinfootcandleandLuxunitsusingaprecisionphoto‐diodesensor.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.TheExtechInstrumentsbrand,

awhollyownedsubsidiaryofFLIRSystems,Inc.,isISO‐9001certified.



Safety



UseCAUTIONwhenoperatingthisdevice.Thelightsensorissensitiveandshouldbehandledwithgreat

care.



MeterDescription



1. Photodetector(LightSensor):Sensorcontainsalonglifesilicon

photodiode

2. MAX‐LUX/fcfunctionbutton:Pressbuttonmomentarilytoview

themaximum(MAX)reading.Pressthebuttonmomentarily

againtoreleasetheMAXdisplayandreturntothenormal

operatingmode.Pressandholdthisbuttonforatleast2seconds

toswitchbetweenLUXandfc(footcandle)unitsofmeasure.

Notethat1fc=10.76LUX).

3. LCDBacklightControlSensor:ThemeterswitchestheLCD

backlightONandOFFautomaticallybasedonenvironmental

lightingconditions.

4. LCDdisplay:1999count,backlitLCDwithLUX,fc,MAX,andlow

batteryicons.

5. Powerbutton:PresstoswitchtheunitONorOFF.

Note:Batterycompartmentandtripodmountarelocatedonrearof

instrument.

Shop for Extech products at: 1.888.610.7664

ShopExtech.com

3LT10‐en‐GB_v1.14/15

Operation



TurnPowerONorOFF

Pressthebuttontoturnpoweronoroff.Ifthedisplaydoesnotswitchon,checkthata9Vbatteryis

installedandisfresh.

SelectingLUXorFootcandle(fc)unitsofmeasure

PressandholdtheMAX‐LUX/fcbuttonforatleast2secondstoswitchbetweenLUXandFcunits.

MeasurementProcedure

1. SwitchthemeterONandpositionthelightsensortocapturethelightthatistobemeasured.

2. ThedisplaywillindicatethelightlevelinFcorLUXunits.

3. Themeterautomaticallyselectsthecorrectrange.Ifthe‘OL’iconappears,thelightmeasurementisout

ofrangeandcannotbemeasuredaccurately.

4. Ifthex10orx100indicatorappears,multiplythedisplayedvaluebythecorrespondingmultiplierto

obtainthecorrectmeasurementvalue.

MaxHold

MomentarilypresstheMAX‐LUX/fcbuttontoviewthehighestreading(MAX)encounteredsincethemeter

waslastswitchedON.Pressthebuttonagaintoreturntothenormaloperatingmode.ToresettheMAX

reading,switchthemeterOFFandthenONagain.

LCDBacklight

ThemeterautomaticallycontrolstheLCDbacklighting(ONandOFF)tomatchtheavailableambientlighting.



Shop for Extech products at: 1.888.610.7664

ShopExtech.com

4LT10‐en‐GB_v1.14/15

BatteryReplacement



Whenthebatterypowerbeginstofail,thelowbatterysymbolwillappearontheLCD.Replacethe9V

batterybyfollowingthesesteps.

1. Opentherearbatterycompartmenttoaccessthebattery

2. Replacethe9Vbattery,carefullysecuringthebatteryinthecompartment

3. Securelyfastenthecompartmentcover

4. Ensurethatthecompartmentcoverissecurelyfastenedbeforeusingthemeter



AllEUusersarelegallyboundbytheBatteryOrdinancetoreturnallusedbatteriestocommunity

collectionpointsorwhereverbatteries/accumulatorsaresold.

Disposalinhouseholdtrashorrefuseisprohibited.

Disposal:Followthevalidlegalstipulationsinrespectofthedisposalofthedeviceattheendofits

lifecycle



BatterySafetyReminders

Pleasedisposeofbatteriesresponsibly;alwaysobservelocal,state,andfederalregulationswithregard

tobatterydisposal.

Neverdisposeofbatteriesinafire.Batteriesmayexplodeorleak.

Nevermixbatterytypesoroldandnewbatteries.Alwaysinstallnewbatteriesofthesametype.







Shop for Extech products at: 1.888.610.7664

ShopExtech.com

5LT10‐en‐GB_v1.14/15

Specifications



GeneralSpecifications

Display1999CountBacklitLCDwithLUX,fc,battery,andMAXindicators

DisplayPolarityAutomaticallydetectspolarity;displays(‐)fornegativepolarity

OverrangeindicationLCDdisplays‘OL’

LowBatteryIndicationBatteryiconappearswhenbatteryvoltageisbelowoperatinglevel

Measurementrate2.5readingspersecond,nominal

MeasurementRepeatability±2%

MAXindicationDisplayshighestreading

Temperaturecoefficient±0.1%peroC

PhotodetectorSiliconphoto‐diodewithspectralresponsefilter

SensorCalibrationCalibratedtostandardincandescentlamp;colortemperature2856k

SpectralresponseCIEphotopic(CIEhumaneyeresponsecurve)

Powersupply9Vbattery

AutoPowerOffMeterautomaticallyswitchesoffafter17minutesofinactivity

OperatingconditionsTemperature:0to40oC(32to104oF);Humidity:<80%RH

StorageconditionsTemperature:‐10to60oC(14to140oF);Humidity:<80%RH

Dimensions157(H)x54(W)x34(D)mm(6.2x2.1x1.3")

Weight170g(6oz.)



ElectricalSpecifications

RangesandResolutionAccuracy

LUX±(5%reading+10digits(<10000LUX/fc)

±(10%reading+10digits(>10000LUX/fc)

Notethatreadingsover1999willshowthex10orx100multiplier.

Inthesecases,multiplythedisplayedvaluebythemultiplierto

obtainthecorrectreading.

200.0,2000,20000,40000

Footcandles(Fc)

20.0,200.0,2000,4000



Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform

www.extech.com

Shop for Extech products at: 1.888.610.7664

ShopExtech.com

6LT10‐en‐GB_v1.14/15

Appendices

TypicalLightLevels

Lux Foot

Candles

Lux Foot

Candles

Factories

Homes

20-75 2-7 Emergency Stairs, Warehouse

100-150 10-15

Washing

75-150 7-15 Exit/Entrance Passages

150-200 15-20

Recreational Activities

150-300 15-30 Packing Wor

200-300 20-30

Drawing Room, Table

300-750 30-75 Visual Work: Production

Line

300-500 30-50

Makeup

750-1,500 75-150 Typesetting: Inspection Work

500-1,500 50-150

Reading, Study

1,500-3,000 150-300 Electronic Assembly, Drafting

1,000-2,000

100-200

Sewing

Office

Restaurant

75-100 7-10 Indoor Emergency Stairs

75-150 7-15

Corridor Stairs

100-200 10-20 Corridor Stairs

150-300 15-30

Entrance, Wash Room

200-750 20-75 Conference,

Reception Room

300-750 30-75

Cooking Room, Dining Table

750-1,500 75-150 Clerical Work

750-1,500 75-150

Show Window

1,500-2,000 150-2000 Typing, Drafting

Stores

Hospitals

75-150 7-15 Indoors

30-75 3-7

Emergency Stairs

150-200 15-20 Corridor/Stairs

75-100 7-10

Stairs

200-300 20-30 Reception

100-150 10-15

Sick Room, Warehouse

300-500 30-50 Display Stand

150-200 15-20

Waiting Room

500-750 50-75 Elevator

200-750 20-75

Medical Exam Room

750-1,500 75-150 Show Window,

Packing Table

750-1,500 75-150

Operating Room

1,500-3,000 150-300 Storefront, Show Window

5,000-10,000

500-1000

Eye Inspection

SpectralSensitivity

400 450 500 550 600 650 700

Wavelength (nm)

- - - - - Light Meter Response _____ CIE Response

0.8

0.6

0.4

0.2

Shop for Extech products at: 1.888.610.7664

ShopExtech.com

Inhaltsverzeichnis

Andere Extech Instruments Messgerät Handbücher

Extech Instruments

Extech Instruments MO297 Bedienungsanleitung

Extech Instruments

Extech Instruments MS400 Bedienungsanleitung

Extech Instruments

Extech Instruments EA30 Bedienungsanleitung

Extech Instruments

Extech Instruments 461920 Bedienungsanleitung

Extech Instruments

Extech Instruments AN200 Bedienungsanleitung

Extech Instruments

Extech Instruments CO220 Bedienungsanleitung

Extech Instruments

Extech Instruments HDV7C-55-HD-1 Bedienungsanleitung

Extech Instruments

Extech Instruments SDL400-NIST Bedienungsanleitung

Extech Instruments

Extech Instruments SDL470 Bedienungsanleitung

Extech Instruments

Extech Instruments HD300 Bedienungsanleitung

Extech Instruments

Extech Instruments 407764 Bedienungsanleitung

Extech Instruments

Extech Instruments UV510 Bedienungsanleitung

Extech Instruments

Extech Instruments Oyster Series Bedienungsanleitung

Extech Instruments

Extech Instruments 401027 Bedienungsanleitung

Extech Instruments

Extech Instruments CO250 Bedienungsanleitung

Extech Instruments

Extech Instruments 407735 Bedienungsanleitung

Extech Instruments

Extech Instruments RPM250W Bedienungsanleitung

Extech Instruments

Extech Instruments MO57 Bedienungsanleitung

Extech Instruments

Extech Instruments MA150-T Bedienungsanleitung

Extech Instruments

Extech Instruments RH350 Bedienungsanleitung

Extech Instruments

Extech Instruments 421509 Bedienungsanleitung

Extech Instruments

Extech Instruments RH390 Bedienungsanleitung

Extech Instruments

Extech Instruments FM100 Bedienungsanleitung

Extech Instruments

Extech Instruments PQ3450-30 Bedienungsanleitung

Beliebte Messgerät Handbücher anderer Marken

Suaoki

Suaoki D40 Bedienungsanleitung

Elster

Elster BK-G1.6 Bedienungsanleitung

Endress+Hauser

Endress+Hauser Deltabar FMD71 Handbuch

Duratool

Duratool D03128 Bedienungsanleitung

Vega

Vega VEGAPULS 65 Bedienungsanleitung

Tonghui

Tonghui TH2618B Bedienungsanleitung

Tenmars

Tenmars TM-801 Bedienungsanleitung

MSR

MSR 145 Bedienungsanleitung

TPS

TPS WP-82 Bedienungsanleitung

ELMETRON

ELMETRON CP-511 Bedienungsanleitung

PCB Piezotronics

PCB Piezotronics 003C30 Bedienungsanleitung

Tenma

Tenma 72-10465 Bedienungsanleitung

Endress+Hauser

Endress+Hauser Proline Promag 50 Technische Daten

Siemens

Siemens SITRANS F Coriolis FCT030 Stücklistenhandbuch

KLINGER

KLINGER CMF V Series Bedienungsanleitung

EXFO

EXFO FTB-2 Bedienungs- und Wartungshandbuch

Keysight

Keysight M8290A Bedienungsanleitung

ADTEK

ADTEK MW-5 Bedienungsanleitung