Extech Instruments HD700 User manual

USERGUIDE



HeavyDuty

DifferentialPressureManometer



ModelHD700

HD700-en-GB_V1.7 4/15

Introduction

CongratulationsonyourpurchaseoftheExtechManometerModelHD700.Thisdevicemeasures

gaugeanddifferentialpressureintherangeof±2.000psi.TheHD700offerseleven11)unitsof

measureuserselectablebyfrontpanelpushbutton)andhasadifferentialinputthatuses

convenientquick‐disconnectfittings.AdvancedfeaturesincludeDATAHOLD,MIN‐MAX‐AVG

RECORDmode,ZERO/OFFSET,AUTOPOWEROFF,andUSBPCinterface.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Guide,ProductUpdates,and

CustomerSupport.



MeterDescription

1. P1input

2. ACadaptorjack

3. P2Input

4. LCDDisplay–Indicatesthemeasurementdata,unitofmeasure,

elapsedtimer,andfunctionsymbolsasdescribedinthismanual

5. USBPCinterfacejack3.5mm)–Forusewithdataacquisition

software

6. UNITbutton–Presstoselecttheunitofmeasure

7. DIFbutton–Presstodisplaydifferentialpressure.Alsousedto

OFFSETthedisplayedreadings.

8. RECORDbutton–PresstoaccesstheMIN/MAX/AVGrecording

mode

9. HOLD/ZERObutton–Presstofreezethedisplayedreading.Also

usedtozerothedisplaypressandholduntildisplayshowsall

zeroes).

10. BACKLIGHT button–PresstoswitchthedisplaybacklightON.

ThebacklightwillautomaticallyturnOFFafter40seconds.

11. POWERbutton–PresstoturnthemeterONorOFF

12. Batterycompartmentonrear)



HD700-en-GB_V1.7 4/15

Display

1. USBdataoutputactive

2. DifferentialPressureMode

3. DataHoldMode

4. Primarydisplay

5. RecordMode

. MAX/MIN/AVGindicators

7. LowBatteryIndicator

8. Pressureunitofmeasure

9. ElapsedTimer



BasicOperation

MeterPower

TheHD700usesa9Vbatteryforpower.IfthemeterdoesnotswitchonwhenthePOWER

buttonispressedorifthedisplayshowsBAT,replacethebattery.

WhenthePOWERbuttonsispressed,themeterperformsashortself‐testandrevertstothe

settingsinplacewhenthemeterwaslastturnedoff.

AutomaticPower‐offFeature

Inordertoconservebatterylife,themeterhasanautomaticpowerofffeature(after20

minutes).Todefeatthisfeature,pressandholdtheHOLDbuttonwhileturningthemeteron.

ReleasetheHOLDbuttonwhen‘n’appearsonthedisplay.Themeterwillnowremainonuntil

theuserturnsitofforuntilthebatteryweakens.NotethattheAutoPowerOFFfeaturewillbe

reactivatedthenexttimethemeteristurnedoffandthenon.

HD700-en-GB_V1.7 4/15

UnitofMeasure

PresstheUNITbuttontoselecttheunitofmeasure.Thismeterofferseleven(11)unitsof

measureaslistedbelow.



UnitofMeasureDisplayicon

PoundspersquareinchPsi

InchesofMercuryin g

Milli‐barmbar

MillimetersofMercurymm g

Kilo‐PascalskPa

KilogramspercentimetersquaredKgcm



Inchesofwaterin

O

Feetofwaterft

O

Centimetersofwatercm

O

BarsBar

Ouncespersquareinchozin



FittingsConnection

ConnecttubingtotheP1,P2(orboth)inputport(s).Ifbothinputsareused(differentialmode),

themeterdisplaysapositivepressurereadingiftheP1pressureisgreaterthanP2anda

negativereadingifP2isgreaterthanP1.



ZeroAdjustandOffsetfunction

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OLD

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



ToOFFSETmeterreadings:PresstheDIFbuttonwhiletakingameasurement.Subsequent

readingswillrepresentthedifferencebetweenthecurrentmeasurementandthemeasurement

thatwasonthedisplaywhentheDIFbuttonwaspressed.



HD700-en-GB_V1.7 4/15

MIN‐MAX‐AVGRecordModewithElapsedTimer

TheRECORDfunctiontracksthemaximum(MAX),minimum(MIN),andavera e(AVG)readin s

withatimestamp.Theelapsedtimerisdisplayedonthelowerri ht‐handcorneroftheLCDand

informstheuserofthetimeaMAXorMINreadin wasrecorded.

1. PresstheRECORDbuttononce.TheRECindicatorwillappearonthedisplayandthe

displayedelapsedtimerwillstart(HH:MM:SSformat[hours:minutes:seconds]).

2. PresstheRECORDbuttona aintoviewthehi hest(MAX)readin recordedsincethe

RECORDbuttonwasfirstpressed.TheMAXindicatorandmaximumreadin willappearon

thedisplay.TheelapsedtimerwillshowthetimeoftheMAXevent.

3. PresstheRECORDbuttona ain,theMINindicatorandtheminimumvaluewillappearon

thedisplay.TheelapsedtimerwillshowthetimeoftheMINevent.

4. PresstheRECORDbuttona ain,theAVGindicatorandtheavera evaluewillappearonthe

display.Theelapsedtimerwillcontinuetorun.

5. Toreturntonormaloperation,pressandholdtheRECORDbuttonuntilthedisplay

indicatorsREC,MAX,etc.switchoff.

NotethatintheRECORDmode,thebackli htandthepowerbuttonsaretheonlyavailable

functions.

USBPCInterface

Themeterhasabuilt‐inUSBportforusewiththeManometerDataAcquisitionsoftware.The

softwareallowstheusertoview,save,export,andprintreadin sfromtheHD700.Refertothe

documentationincludedwiththesoftwareforcompletedetails.

isplayedErrorCodes

Thefollowin codesaredisplayedwhenthemeterencountersanerror.

ERR1:Pressureinputexceedsspecifiedlimits

ERR2:Pressureinputistoolowtoread

ERR3:TheDifferentialPressureinputexceedsspecifiedlimits

ERR4:TheDifferentialPressureinputistoolowtoread

HD700-en-GB_V1.7 4/15

Specifications

GeneralSpecifications

DisplayFourdigitLCDwithfunctionindicators

UnitsofMeasureBAR,mBAR,psi,kg/cm

,mmHg,inchesHg,kPa,feetH

O,inches

O,cmH

O,ando in

2

Accuracy±0.3%FS(@25°C)

Repeatability±0.2%to0.5%FS

Linearity/Hysteresis±0.3%FS

CombinedAccuracy±1.1%FS

MaximumPressure10psi

Responsetime0.5stypical

InputcircuitDifferentialinputs(P1andP2)

InputPortsTwometal4.8mm,barbedfor1/8"(3.17mm)IDtubing

DataHoldFree esdisplayedreading

SensorBuilt‐inpie oelectricsensors

ero/OffsetfunctionPushbuttonactivation

Samplerate0.5sec.(approx.)

CompatibilityAirornon‐corrosiveandnon‐ioni edgas(notintendedforusewith

liquids)

AutoPowerOFFMeterturnsoffafterapprox.20minutestoconserveenergy(can

bedeactivated)

PCInterfaceBuilt‐inUSBserialinterface

Storageconditions0to60

C(14to140

F);<80%RH

Operatingconditions0to50

C(32to122

F);<80%RH

Batterypower9Valkalinebattery(BATlowbatteryindicator)

Batterylife125hourstypical

Dimensions210x75x50mm(8.2x2.9x1.9”)

Weight280g(9.8o )

HD700-en-GB_V1.7 4/15

RangeSpecifications

Range/Units(Max.)Resolution

±0.137bar0.001

±137.8mbar0.1

±2.000psi0.001

±0.140Kg/cm

0.001

±103.4mmHg0.1

±4.072inchesHg0.001

±13.79kPa0.01

±4.612feetH

O0.001

±55.40inchesH

O0.01

±140.6cmH

O0.1

±32.00o in

0.01



Warning: Pressure inputs of 10 psi or higher will d m ge the instrument. Do not

pply pressure higher th n the m ximum pressure listed in the specific tion t ble

HD700-en-GB_V1.7 4/15

BatteryReplacement

WhenthelowbatteryindicatorBATappearsonthedisplayorifthemeterdoesnotswitchon

whenthePOWERbuttonispressed,itisnecessarytoreplacethebattery.

Toreplacethebattery:

1. Openthebatterycompartmentbyslidingthemeter’srearpanelinthedirectionofthe

embossedarrow.

. Replacethe9Valkalinebattery

3. Replacethebatterycompartmentcover.

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.



OtherBatterySafetyReminders

o Neverdisposeofbatteriesinafire.Batteriesmayexplodeorleak.

o Nevermixbatterytypes.Alwaysinstallnewbatteriesofthesametype.

Conversions

UsefulconversionFactors

FromToMultiplier

inofH

OinofHg0.07355

inofH

OcmofH

O.54

mmofHginofH

O0.03937



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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