Extech Instruments HD700 User manual

USERGUIDE



HeavyDuty
DifferentialPressureManometer

ModelHD700

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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)


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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.

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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
2

Inchesofwaterin
2
O
Feetofwaterft
2
O
Centimetersofwatercm
2
O
BarsBar
Ouncespersquareinchozin
2


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.


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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

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Specifications
GeneralSpecifications
DisplayFourdigitLCDwithfunctionindicators
UnitsofMeasureBAR,mBAR,psi,kg/cm
2
,mmHg,inchesHg,kPa,feetH
2
O,inches
H
2
O,cmH
2
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
o
C(14to140
o
F);<80%RH
Operatingconditions0to50
o
C(32to122
o
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 )

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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
2
0.001
±103.4mmHg0.1
±4.072inchesHg0.001
±13.79kPa0.01
±4.612feetH
2
O0.001
±55.40inchesH
2
O0.01
±140.6cmH
2
O0.1
±32.00o in
2
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

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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



Copyright©013‐015FLIRSystems,Inc.
Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform
ISO‐9001Certified
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