Extech Instruments HD780 User manual

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USERMANUAL
HeavyDutyManifoldPressureGauge
ModelHD780
AdditionalUserManualTranslationsavailableatwww.extech.com
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Introduction
CongratulationsonyourpurchaseoftheExtechInstrumentsHeavyDutyManifoldandPressure
GaugeModelHD780.Thisdeviceisaportable,digitalrefrigerantmanifoldmeterthatmeasures
highpressure,TypeKtemperatureandambienttemperature.Thismeterisshippedfullytested
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,
ProductUpdates,CustomerSupport,andProductRegistration.
Features
Measurespsi,kPA,inHg,cmHg,bar,plusTypeKandambienttemperature
AutomaticTemperatureCompensation
Autopowerofffeaturesavesbatterylife
EasytoreadLCDwithbacklight
DataholdandMINMAXreadings
Includestwoheavydutypressurehoses,protectiverubberholster,twoType
Ktemperature
clamp probes, two general purpose Type K bead wire temperature probes, Universal AC
adaptorwithplugs(US,EU,UK,AUS),9Vbattery,andhardcase.
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MeterDescription
1. ProbeConnection
2. LCDDisplay
3.
/SETButton
4. /UNITSButton
5. ENTERButton
6. °F/°C/Button
7. P(P1,P2selection)M(mode)Button
8. MAX/MINButton
9. H(Hold)Button
10. T(T1,T2selection)/M(mode)Button
11. POWERButton
RIGHTSIDEVIEW
1. T2Input
2. DC9VPowerAdapterInputSocket
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2
3
4
5
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8
9
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11
1
2
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LEFTSIDEVIEW
1. T1Input
2. AmbientTemperaturesensor
3. Batterycompartment(Back)
DISPLAY
1. P1,P2andP1P2Pressure
2. Pressureunits
3. T1,T2,T1T2Temperature
4. Holdicon
5. Setupicon
6. MAX/MIN/AVGindicators
7. AmbientTemperature
8. Autopoweroffsymbol
9. Poweradapterindicator
10. LowBatteryIndicator
11. Offset
1
3
2
4
5
6
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2
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Operation
ButtonDescriptions
PowerON/OFFthemeter
MAX/MIN SelectMAX/MIN/AVG
PM TogglebetweenP1andP2
H Freezethereadingsonthedisplay
TMTogglebetweenT1andT2(The middledisplayshowsthetemperatureplusthe
offset.SeetheSETUPsectiontoadjusttheoffsetvaluesforT1andT2)
/SET Press once to power ON/OFF backlight or press for 3 seconds to enter/exit
setupmode
/UNITS Change the pressure units, scroll though setup options, or increase the
displayedsetting
°F/°CChange the temperature units, scroll through setup options, or decrease the
displayedsetting
Press one time to enter setup option. Press two times to store the displayed
settingintomemory
DisplayBacklight
To turn the display backlight ON, momentarily press the backlight button. To turn the
backlightoffpressthebacklight
buttononemoretime.
DataHold
Tofreezea displayed reading onthe LCD, press theHOLDbutton one time (theHOLDiconwill
appearonthebottomleftportionoftheLCD).ToexitHOLD,presstheHOLDbuttonagain.
UnitsofMeasure
The currently selected unit of measure is shown below the measurement value on the top
sectionsofthemeter’sLCD.Tochangetheunitofmeasure,pressthe/UNITSbuttonuntilthe
desiredunitofmeasureappears.
DisplayingPressure
Press Unit button to scroll through available pressure units of measure. Press P M button to
togglebetweenP1,P2,P1P2readings.
DisplayingTemperature
PressunitbuttontoselectC/F.PressT MbuttontotogglebetweenT1,T2,T1T2readings.The
displayshows dashes (‐ ‐ )whenthere is no thermocouple connected.Thedisplay shows “OL”
whenthetemperaturebeingmeasuredisoutsidethethermocouplerange.
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ViewingMAXMINAVG
Foragivenmeasurementsession,thismetercanrecordthehighest(MAX)andthelowest(MIN)
readingsforlaterrecall.
1. PresstheMAXMINbuttontoviewthecurrentMAXreadings(MAXiconappears).The
readingsonthedisplayarenowthehighestreadingslogged.
2. PresstheMAXMIN
buttonagaintoviewthecurrentMINreadings(MINiconappears).The
readingsonthedisplayarenowthelowestreadingslogged.
3. PressMAXMINbuttononcemoretoviewthecurrentAVGreadings(AVGiconappears).
Thereadingsonthedisplayarenowthelowestreadingslogged.
To
exitthe MAXMINmode,pressandholdtheMAXMINbuttonfor3seconds.TheMAXMIN
AVGiconswillswitchoffandthemeterwillreturntothenormaloperatingmode.
ZeroAdjust(Pressure)
TheunitmustbekeptintheuprightpositionwhenZEROINGorwhentakingmeasurements.To
ZERO the meter: Before use and without fittings attached to the meter, press and hold the H
buttonfor3secondsoruntilthedisplayshowsallzeroes.
SetupMode
Press and hold the /SET button for three seconds to enter the Setup Mode. Momentarily
pressingtheorbuttonswillcyclethroughoutthefunctions.Press toselectthedesired
function.SetupisdisabledinMIN/MAXmode.Theyare(inorder):
OFFSET………StoreoffsetsforT1andT2
SLP……Sleepmode
Note:PressandholdtheSETbuttonforthreesecondswhenintheSetModetoexit.
Offset
Use the offset option to compensate for a specific thermocouple temperature error or
mismatch.Theallowableadjustmentrangeis±5.0°C(9.0°F).
1. PlugthethermocoupleintotheT1orT2inputconnectorlocatedoneithersideofthemeter.
2. Placethethermocoupleinaknown,stableenvironment.
3. Allow
the readings to stabilize. The primary display shows the temperature, while the
bottomdisplayshowstheoffsetvalue.
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
modeoption.
SleepMode(AutoPowerOFF)
With sleep mode active, the meter automatically powers off after 20 minutes of inactivity. To
defeatthisfeature,whileinSLPmode,press
toindicateON(sleepmodeON)orOFF(sleep
mode OFF). Press or buttons to make a selection. Press to store the new setting in
memory.
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BatteryReplacement
WARNING: To avoid electricalshock,remove the test leads,disconnectthe meter from
anycircuitandturnOFFthemeterbeforeopeningthecase.Donotoperatewithanopencase.
BatteryReplacement
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
replacedassoonaspossible:
Removethecoverfromtherearofthemeter.
Replacetheone(1)9Vbatteryobservingpolarity.
Replacethebatterycompartmentcover.
Note:ThemetercanalsobepoweredbyaDC9VPowerAdapter.Themeterwillbepermanently
poweredONwhentheDCadapterisusedasthepowersupply(thepowerbuttonfunctionis
disabled).
Safety:Pleasedisposeofbatteriesresponsibly;neverdisposeofbatteriesinafire,batteriesmay
explodeorleak.Ifthemeterisnottobeusedfor60daysormore,removethebatteryandstore
separately.
Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.
As consumers, users are legally required to take used batteries to appropriate
collection sites, the retail store where the batteries were purchased, or wherever
batteriesaresold.
Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.The user
isobligated
to take endoflife devices to a designated collection point for the disposal of
electricalandelectronicequipment.
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Specifications
Function Range Resolution Accuracy
Pressure‐14to0psi 0.1
(0.3psi)
0to200psi 0.1
(1.0psi)
200to400psi 0.1
(0.3%+1psi)
400to500psi 0.1
(0.3%+1.5psi)
96to0kPa 1
(2kPa)
0to1378kPa 1
(7kPa)
1378to2757kPa 1
(0.3%+7kPa)
2757to3447kPa 1
(0.3%+10kPa)
0.96to0bar 0.01
(0.02bar)
0to13.79bar 0.01
(0.1bar)
13.79to34.47bar 0.01
(0.3%+0.1bar)
28to0inHg 0.1
(0.4inHg)
0to407inHg 0.1
(2inHg)
407to814inHg 0.1
(0.3%+2inHg)
814to999.9 0.1
(0.3%+3inHg)
72to0cmHg 1
(1cmHg)
0to1034cmHg 1
(5cmHg)
1034to2068cmHg 1
(0.3%+6cmHg)
2068to2585cmHg 1
(0.3%+8cmHg)
TypeKthermocouple
(T1/T2Temperature)
60°Cto537.0°C
(76°Fto999.9°F)
0.1
(0.15%rdg+1.0°C)
(0.15%rdg+1.8°F)
AmbientTemperature
(SensorType:NTC)
0°Cto50.0°C
(32.0°Fto122.0°F)
0.1
1.0°C(2.0°F)
GeneralSpecifications
PressureConnectorType Standard¼NPTmaleflarefitting
StatedAccuracy @25°C(77
o
F)<75%RH
Max.OverloadPressure 800psi
DataHold Freezesdisplayedreading
AutoPowerOFF Afterapprox.30minutesofinactivity(canbedeactivated)
Storageconditions 20to60
o
C(4to140
o
F);<80%RH(withbatteryremoved)
Operatingconditions 0to50
o
C(32to122
o
F);<75%RH
Batterypower 9Vbattery(Lowbatteryindicator)
Dimensions 23.5x7.6x5cm (9.3x3.0x2.0“)
Weight 460g(16.2oz.)
Copyright©2016FLIRSystems,Inc.
Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform
ISO9001Certified
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