Extech Instruments LT10 Manuel utilisateur

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

Table des matières

Autres manuels Extech Instruments Instrument de mesure

Extech Instruments

Extech Instruments RPM250W Manuel utilisateur

Extech Instruments

Extech Instruments MA250 Manuel utilisateur

Extech Instruments

Extech Instruments UM200-NIST Manuel utilisateur

Extech Instruments

Extech Instruments 461893 Manuel utilisateur

Extech Instruments

Extech Instruments 461825 Manuel utilisateur

Extech Instruments

Extech Instruments EasyView EA33 Manuel utilisateur

Extech Instruments

Extech Instruments 45160 Manuel utilisateur

Extech Instruments

Extech Instruments ExStik II EC400 Manuel utilisateur

Extech Instruments

Extech Instruments HD350 Manuel utilisateur

Extech Instruments

Extech Instruments HD700 Manuel utilisateur

Extech Instruments

Extech Instruments HDV7C-55-HD-1 Manuel utilisateur

Extech Instruments

Extech Instruments EA31 Manuel utilisateur

Extech Instruments

Extech Instruments 407790 Manuel utilisateur

Extech Instruments

Extech Instruments MA150 Manuel utilisateur

Extech Instruments

Extech Instruments 380942 Manuel utilisateur

Extech Instruments

Extech Instruments 45320 Manuel utilisateur

Extech Instruments

Extech Instruments 461920 Manuel utilisateur

Extech Instruments

Extech Instruments FM300 Manuel utilisateur

Extech Instruments

Extech Instruments 401027 Manuel utilisateur

Extech Instruments

Extech Instruments AM300 Manuel utilisateur

Extech Instruments

Extech Instruments MA640 Manuel utilisateur

Extech Instruments

Extech Instruments 407026 Manuel utilisateur

Extech Instruments

Extech Instruments MO297 Manuel utilisateur

Extech Instruments

Extech Instruments RH520 Manuel utilisateur

Manuels Instrument de mesure populaires d'autres marques

Suaoki

Suaoki D40 Manuel utilisateur

Elster

Elster BK-G1.6 Manuel utilisateur

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuel

Duratool

Duratool D03128 Manuel utilisateur

Vega

Vega VEGAPULS 65 Manuel utilisateur

Tonghui

Tonghui TH2618B Manuel utilisateur

Tenmars

Tenmars TM-801 Manuel utilisateur

MSR

MSR 145 Manuel utilisateur

TPS

TPS WP-82 Manuel utilisateur

ELMETRON

ELMETRON CP-511 Manuel utilisateur

PCB Piezotronics

PCB Piezotronics 003C30 Manuel utilisateur

Tenma

Tenma 72-10465 Manuel utilisateur

Endress+Hauser

Endress+Hauser Proline Promag 50 Caractéristiques techniques

Siemens

Siemens SITRANS F Coriolis FCT030 Manuel de la liste des pièces

KLINGER

KLINGER CMF V Series Manuel utilisateur

EXFO

EXFO FTB-2 Manuel d'exploitation et d'entretien

Keysight

Keysight M8290A Manuel utilisateur

ADTEK

ADTEK MW-5 Manuel utilisateur