Extech Instruments HD780 User manual



USERMANUAL



HeavyDutyManifoldPressureGauge

ModelHD780



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.



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.



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

MeterDescription



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



RIGHTSIDEVIEW



1. T2Input

2. DC9VPowerAdapterInputSocket



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



LEFTSIDEVIEW

1. T1Input

2. AmbientTemperaturesensor

3. Batterycompartment(Back)



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



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.



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.



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.



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.



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.



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.



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):



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.



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



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).



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.



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

Table of contents

Other Extech Instruments Measuring Instrument manuals

Extech Instruments

Extech Instruments 451212 User manual

Extech Instruments

Extech Instruments 407735 User manual

Extech Instruments

Extech Instruments CO240 User manual

Extech Instruments

Extech Instruments MA150 User manual

Extech Instruments

Extech Instruments 401027 User manual

Extech Instruments

Extech Instruments MO210 User manual

Extech Instruments

Extech Instruments MO53 User manual

Extech Instruments

Extech Instruments EC100 User manual

Extech Instruments

Extech Instruments MO750 User manual

Extech Instruments

Extech Instruments FM300 User manual

Extech Instruments

Extech Instruments GRT350 User manual

Extech Instruments

Extech Instruments VFM200 User manual

Extech Instruments

Extech Instruments MO55W User manual

Extech Instruments

Extech Instruments MO257 User manual

Extech Instruments

Extech Instruments MA145 User manual

Extech Instruments

Extech Instruments 461895 User manual

Extech Instruments

Extech Instruments 407355 User manual

Extech Instruments

Extech Instruments ExStik EC500 User manual

Extech Instruments

Extech Instruments EC600 User manual

Extech Instruments

Extech Instruments DT200 User manual

Extech Instruments

Extech Instruments 480846 User manual

Extech Instruments

Extech Instruments MO270 User manual

Extech Instruments

Extech Instruments PQ3350 User manual

Extech Instruments

Extech Instruments 380801 User manual

Popular Measuring Instrument manuals by other brands

Suaoki

Suaoki D40 user manual

Elster

Elster BK-G1.6 operating instructions

Endress+Hauser

Endress+Hauser Deltabar FMD71 technical information

Duratool

Duratool D03128 manual

Vega

Vega VEGAPULS 65 Quick setup guide

Tonghui

Tonghui TH2618B Operation manual

Tenmars

Tenmars TM-801 user manual

MSR

MSR 145 user manual

TPS

TPS WP-82 manual

ELMETRON

ELMETRON CP-511 user manual

PCB Piezotronics

PCB Piezotronics 003C30 Installation and operating manual

Tenma

Tenma 72-10465 manual

Endress+Hauser

Endress+Hauser Proline Promag 50 Brief operating instructions

Siemens

Siemens SITRANS F Coriolis FCT030 Function manual

KLINGER

KLINGER CMF V Series instruction manual

EXFO

EXFO FTB-2 Notice

Keysight

Keysight M8290A Getting started guide

ADTEK

ADTEK MW-5 operating manual