Extech Instruments HD780 Bedienungsanleitung

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USERMANUAL

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HeavyDutyManifoldPressureGauge

ModelHD780

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AdditionalUserManualTranslationsavailableatwww.extech.com

2HD780‐en‐GB_V1.09/16

Introduction

CongratulationsonyourpurchaseoftheExtechInstrumentsHeavyDutyManifoldandPressure

GaugeModelHD780.Thisdeviceisaportable,digitalrefrigerantmanifoldmeterthatmeasures

highpressure,TypeKtemperatureandambienttemperature.Thismeter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Manual,Translations,

ProductUpdates,CustomerSupport,andProductRegistration.

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Features

Measurespsi,kPA,inHg,cmHg,bar,plusTypeKandambienttemperature

AutomaticTemperatureCompensation

Autopowerofffeaturesavesbatterylife

Easy‐to‐readLCDwithbacklight

DataholdandMIN‐MAXreadings

Includestwoheavydutypressurehoses,protectiverubberholster,twoTypeKtemperature

clampprobes,twogeneralpurposeTypeKbeadwiretemperatureprobes,UniversalAC

adaptorwithplugs(US,EU,UK,AUS),9Vbattery,andhardcase.

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3HD780‐en‐GB_V1.09/16

MeterDescription

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1. ProbeConnection

2. LCDDisplay

3. /SETButton

4. /UNITSButton

5. ENTERButton

6. °F/°C/Button

7. P(P1,P2selection)M(mode)Button

8. MAX/MINButton

9. H(Hold)Button

10. T(T1,T2selection)/M(mode)Button

11. POWERButton

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RIGHTSIDEVIEW

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1. T2Input

2. DC9VPowerAdapterInputSocket

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4HD780‐en‐GB_V1.09/16

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LEFTSIDEVIEW

1. T1Input

2. AmbientTemperaturesensor

3. Batterycompartment(Back)

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DISPLAY

1. P1,P2andP1‐P2Pressure

2. Pressureunits

3. T1,T2,T1‐T2Temperature

4. Holdicon

5. Setupicon

6. MAX/MIN/AVGindicators

7. AmbientTemperature

8. Autopoweroffsymbol

9. Poweradapterindicator

10. LowBatteryIndicator

11. Offset

5HD780‐en‐GB_V1.09/16

Operation

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ButtonDescriptions

PowerON/OFFthemeter

MAX/MINSelectMAX/MIN/AVG

PM TogglebetweenP1andP2

H Freezethereadingsonthedisplay

TMTogglebetweenT1andT2(Themiddledisplayshowsthetemperatureplusthe

offset.SeetheSETUPsectiontoadjusttheoffsetvaluesforT1andT2)

/SET PressoncetopowerON/OFFbacklightorpressfor3secondstoenter/exit

setupmode

/UNITSChangethepressureunits,scrollthoughsetupoptions,orincreasethe

displayedsetting

°F/°CChangethetemperatureunits,scrollthroughsetupoptions,ordecreasethe

displayedsetting

Pressonetimetoentersetupoption.Presstwotimestostorethedisplayed

settingintomemory

DisplayBacklight

ToturnthedisplaybacklightON,momentarilypressthebacklight  button.Toturnthe

backlightoffpressthebacklightbuttononemoretime.

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DataHold

TofreezeadisplayedreadingontheLCD,presstheHOLDbuttononetime(theHOLDiconwill

appearonthebottomleftportionoftheLCD).ToexitHOLD,presstheHOLDbuttonagain.

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UnitsofMeasure

Thecurrentlyselectedunitofmeasureisshownbelowthemeasurementvalueonthetop

sectionsofthemeter’sLCD.Tochangetheunitofmeasure,pressthe/UNITSbuttonuntilthe

desiredunitofmeasureappears.

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DisplayingPressure

PressUnitbuttontoscrollthroughavailablepressureunitsofmeasure.PressPMbuttonto

togglebetweenP1,P2,P1‐P2readings.

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DisplayingTemperature

PressunitbuttontoselectC/F.PressTMbuttontotogglebetweenT1,T2,T1‐T2readings.The

displayshowsdashes(‐‐‐)whenthereisnothermocoupleconnected.Thedisplayshows“OL”

whenthetemperaturebeingmeasuredisoutsidethethermocouplerange.

6HD780‐en‐GB_V1.09/16

ViewingMAX‐MIN‐AVG

Foragivenmeasurementsession,thismetercanrecordthehighest(MAX)andthelowest(MIN)

readingsforlaterrecall.

1. PresstheMAX‐MINbuttontoviewthecurrentMAXreadings(MAXiconappears).The

readingsonthedisplayarenowthehighestreadingslogged.

2. PresstheMAX‐MINbuttonagaintoviewthecurrentMINreadings(MINiconappears).The

readingsonthedisplayarenowthelowestreadingslogged.

3. PressMAX‐MINbuttononcemoretoviewthecurrentAVGreadings(AVGiconappears).

Thereadingsonthedisplayarenowthelowestreadingslogged.

ToexittheMAX‐MINmode,pressandholdtheMAX‐MINbuttonfor3seconds.TheMAX‐MIN‐

AVGiconswillswitchoffandthemeterwillreturntothenormaloperatingmode.

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ZeroAdjust(Pressure)

TheunitmustbekeptintheuprightpositionwhenZEROINGorwhentakingmeasurements.To

ZEROthemeter:Beforeuseandwithoutfittingsattachedtothemeter,pressandholdtheH

buttonfor3secondsoruntilthedisplayshowsallzeroes.

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SetupMode

Pressandholdthe/SETbuttonforthreesecondstoentertheSetupMode.Momentarily

pressingtheorbuttonswillcyclethroughoutthefunctions.Press toselectthedesired

function.SetupisdisabledinMIN/MAXmode.Theyare(inorder):

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OFFSET………StoreoffsetsforT1andT2

SLP……Sleepmode

Note:PressandholdtheSETbuttonforthreesecondswhenintheSetModetoexit.

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Offset

Usetheoffsetoptiontocompensateforaspecificthermocoupletemperatureerroror

mismatch.Theallowableadjustmentrangeis±5.0°C(9.0°F).

1. PlugthethermocoupleintotheT1orT2inputconnectorlocatedoneithersideofthemeter.

2. Placethethermocoupleinaknown,stableenvironment.

3. Allowthereadingstostabilize.Theprimarydisplayshowsthetemperature,whilethe

bottomdisplayshowstheoffsetvalue.

4. Usethe▲and▼buttonstoadjusttheoffsetuntiltheprimaryreadingmatchesthe

calibrationtemperature.Pressbuttontostorethevalueandmovetothenextsetup

modeoption.

SleepMode(AutoPowerOFF)

Withsleepmodeactive,themeterautomaticallypowersoffafter20minutesofinactivity.To

defeatthisfeature,whileinSLPmode,presstoindicateON(sleepmodeON)orOFF(sleep

modeOFF).Pressorbuttonstomakeaselection.Press  tostorethenewsettingin

memory.

7HD780‐en‐GB_V1.09/16

BatteryReplacement

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WARNING:Toavoidelectricalshock,removethetestleads,disconnectthemeterfrom

anycircuitandturnOFFthemeterbeforeopeningthecase.Donotoperatewithanopencase.

BatteryReplacement

Whenthelowbatteryicon  appearsontheLCD,thebatteriesmustbereplaced.Several

hoursofaccuratereadingsarestillpossibleinthiscondition;however,batteriesshouldbe

replacedassoonaspossible:

Removethecoverfromtherearofthemeter.

Replacetheone(1)9Vbatteryobservingpolarity.

Replacethebatterycompartmentcover.

Note:ThemetercanalsobepoweredbyaDC9VPowerAdapter.Themeterwillbepermanently

poweredONwhentheDCadapterisusedasthepowersupply(thepowerbuttonfunctionis

disabled).

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Safety:Pleasedisposeofbatteriesresponsibly;neverdisposeofbatteriesinafire,batteriesmay

explodeorleak.Ifthemeterisnottobeusedfor60daysormore,removethebatteryandstore

separately.



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.

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8HD780‐en‐GB_V1.09/16

Specifications

FunctionRangeResolutionAccuracy

Pressure‐14to0psi0.1(0.3psi)

0to200psi0.1(1.0psi)

200to400psi0.1(0.3%+1psi)

400to500psi0.1(0.3%+1.5psi)

‐96to0kPa1(2kPa)

‐0to1378kPa1(7kPa)

1378to2757kPa1(0.3%+7kPa)

2757to3447kPa1(0.3%+10kPa)

‐0.96to0bar0.01(0.02bar)

0to13.79bar0.01(0.1bar)

13.79to34.47bar0.01(0.3%+0.1bar)

‐28to0inHg0.1(0.4inHg)

0to407inHg0.1(2inHg)

407to814inHg0.1(0.3%+2inHg)

814to999.90.1(0.3%+3inHg)

‐72to0cmHg1(1cmHg)

0to1034cmHg1(5cmHg)

1034to2068cmHg1(0.3%+6cmHg)

2068to2585cmHg1(0.3%+8cmHg)

TypeKthermocouple

(T1/T2Temperature)

‐60°Cto537.0°C

(‐76°Fto999.9°F)

0.1(0.15%rdg+1.0°C)

(0.15%rdg+1.8°F)

AmbientTemperature

(SensorType:NTC)

0°Cto50.0°C

(32.0°Fto122.0°F)

0.1

1.0°C(2.0°F)

GeneralSpecifications

PressureConnectorTypeStandard¼NPTmaleflarefitting

StatedAccuracy@25°C(77oF)<75%RH

Max.OverloadPressure800psi

DataHoldFreezesdisplayedreading

AutoPowerOFFAfterapprox.30minutesofinactivity(canbedeactivated)

Storageconditions‐20to60oC(‐4to140oF);<80%RH(withbatteryremoved)

Operatingconditions0to50oC(32to122oF);<75%RH

Batterypower9Vbattery(Lowbatteryindicator)

Dimensions23.5x7.6x5cm (9.3x3.0x2.0“)

Weight460g(16.2oz.)

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

ISO‐9001Certified

www.extech.com

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