DPM ST6 Series User manual

ST6SeriesDIGITALPOCKETMANOMETER 
OPERATINGMANUAL
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ST6InstructionManual
Page00CONTENTS
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LimitationsofUse 01
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KeypadControls 02
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ModeofOperation 03
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PressureModeDisplay 04
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VelocityModeDisplay 05
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LiveVolumeDisplay 06
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VolumeModeDisplay 07
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TemperatureModeDisplay 08
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PressureConnections 09
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Velocity 10
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VolumeFlowRates 11
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UserMenu 12‐17
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OptionMenu 18 ‐21
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ConversionTables 22
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DuctTraversePoints 23
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DownloadingData 24
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MaintenanceandCalibration 24
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Specifications 25 ‐26
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LIMITATIONSOFUSE ST6InstructionManual
Page01
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ST6Seriesinstrumentsareintendedformeasurementoflowdifferentialairpressureinandaround
commercialandindustrialairhandlingsystemsandforusewithaPitotStaticTube,dpmAneTMhead,
dpmHoodanddpmShortHood.

Theinstrumentsarenotsuitableforliquidpressuremeasurementandmustnotbeusedwith
corrosive,toxicorotherwisehazardousgases.

Theinstrumentsarenotclassifiedas“Flameproof”or“IntrinsicallySafe”andconsequentlymustnot
beusedwhereanexplosionhazardmayexist.TheyarealsonotauthorisedforLifeSupport
applications.

Duringnormaloperationsmallquantitiesofair(typicallylessthan0.1ml/min)maypassintooroutof
thesystemundertestanditistheresponsibilityoftheusertoconsidertheconsequencesofsuch
leakagebeforedeterminingthesuitabilityoftheinstrumentforanyparticularpurpose.
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Theinstrumentmustbeturnedoffbeforeitisstoredortransportedand,ifitistobestoredforalong
periodoftimeoristobetransportedbyair,thebatteriesmustberemoved.

Thereisa12‐monthguaranteeonallmanufacturedparts.
Thisguaranteedoesnotcoveranyconsumables,and/orwearandtearduringnormalorabnormaluse.
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Theguaranteebecomesnullandvoidiftheinstrumentspartshavebeentamperedwith,misused,
abusedorusedoutsidetheparameterssetoutinthismanual.

Themanufacturerwilldetermineiftheinstrumentisrepairableorrequiresreplacement;chargesmay
apply.

NOTE:RECHARGEABLEINSTRUMENTSMUSTNOTBEFITTEDWITHDRYCELLBATTERIESASTHISMAY
CAUSEAMALFUNCTION.
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ST6InstructionManual
Page02KEYPADCONTROLS

OnandOff.

Operatebacklight.

▲Scrollupinmenumodes.
Increasedigits.
Togglebetweendisplaysinmodeofoperation.
(modeldependent)Thedisplaysarearrangedinloopformationasfollows:
▲PressureMode:
Pressure
Temperature
▲VelocityMode:
Velocity
Temperature
LiveVolume
▲VolumeMode:
Volume
Temperature

►Scrolltotherightinmenumodes.
Togglebetweenunitsofmeasurementinmodeofoperation.
(modeldependent)Theunitsarearrangedinloopformationasfollows:
Pa►KPa►mbar►mmH2O►inH2O►mmHg►inHg►PSI►m/sec►ft/min►
L/sec►m3/sec►m3/hr►cfm►Pa

▼Scrolldowninmenumodes.
Decreasedigits.
Togglebetweendisplaysinmodeofoperation.
(modeldependent)Thedisplaysarearrangedinloopformationasfollows:
▼PressureMode:
Pressure
Temperature
▼VelocityMode:
Velocity
LiveVolume
Temperature
▼VolumeMode:
Volume
Temperature
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◄Scrolltotheleftinmenumodes.
Togglebetweenunitsofmeasurementinmodeofoperation.
(modeldependent)Theunitsarearrangedinloopformationasfollows:
Pa◄cfm◄m3/hr◄m3/sec◄L/sec◄ft/min◄m/sec◄PSI◄inHg◄mmHg◄inH2O
◄mmH2O◄mbar◄KPa◄Pa

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UsedinconjunctionwiththekeytoaccesstheUserMenu.
Accesstheoptionmenu.
Acceptcommandsinthemenumodes.

zeroOverridesthetimeperiodoftheAutoZerosystem.
TochangethistimingseeUserMenupage13.

unitsTogglebetweenunitsinthemeasurementmode.
(modeldependent)Theunitsarearrangedinloopformationsasfollows:
Pa→KPa→mbar→mmH2O→inH2O→mmHg→inHg→PSI→m/sec→ft/min→
L/sec→m3/sec→m3/hr→cfm→Pa
Beinganautoranginginstrument,thecorrectresolutionandthedecimalpointwillbe
displayedaccordingtothepressurebeingapplied.

speedSmoothesouttheresponsetoappliedpressurechanges. Timeconstant:
F=0secS1=5sec S2=10secS3=15sec S4=20sec

storeStorereadingsmanually. FordataloggingseeOptionMenupage21.

hold
temp
Usewithatemperatureprobeinordertoholdthetemperaturereading.
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menu
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MODEOFOPERATION ST6InstructionManual
Page03
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BatteriesLow:Whenthe‘batterylow’warningappears,thebatteriesmustbereplaced
immediately,otherwisethereadingsobtainedwillbeunreliable.
Ifatanytimethereadingsseemsuspect,replacethebatteries.
Forrechargeableinstrumentschargetheinternalbatteries.

Instrumenttopview:

1:Pressureports.Theinstrumentrespondstopositive,negativeanddifferentialpressure.
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2:K‐typeThermocouple.ConnectaK‐typeprobefortemperaturemeasurement.
FortemperaturedisplayseeTemperatureModeDisplaypage08.

3:AnalogueOutput.CablesfortheAnalogueOutputaresuppliedasanoptionalextra.
Theminimumoutputis0.0Vandthemaximumoutputis2.5V.
TheusersetsthecorrespondingpressureinPascals.TosetpressuresseeUserMenupage16.
Connectthewhitecabletothepositiveandtheblackcabletotheground.
Theinstrumentwillnowgivevoltageoutputcorrespondingtothepositivepressures.

4:MiniUSBport.ForPCConnection usedwithDpmUsbSoftwaretodownloaddataandfor
monitoringpurposes.SeeDownloadingDatapage24.
Forrechargeableinstrumentsusedwithchargertochargetheinternalbatteries.

Keypadview:

11
2
3
4
+
–

ST6InstructionManual
Page04PRESSUREMODEDISPLAY
modeldependent


S1Speed.
Thereare5differentspeedsettings.
Usethe‘speed’keytotogglebetweenspeedsettings.

L1Locationnumber.
StoredatainuptoninedifferentLocationsseeOptionMenupage19.
Theinstrumentwillgiveanaveragevalueinthemodeofoperationfordatathatis
storedinthesameunitsofmeasurementandlocation.
WhendataisdownloadedtoaPCitwillbelistedundertheLocationinwhichitisstored.

AutoZero...WhenevertheAutoZerosequenceisinitiatedmanuallyoratpreset‘AutoZero...’will
bedisplayeduntilthecycleiscomplete.

0.0PaUnitofMeasurement.
Usethe‘units’keyorthe◄and►keystotogglebetweenunitsofmeasurement.

23.3°CTemperatureProbereading.
Thisisnotdisplayedwhenthetemperatureprobeisnotattached.

HWhenthe‘holdtemp’keyispressed‘H’willbedisplayedafterthetemperaturereading,
signallingthatthetemperatureisbeingheld.
Thetemperaturewillbeheldeveniftheprobeisdetached,untilthe‘holdtemp’keyis
pressedasecondtime.
Pressingthe‘holdtemp’keyasecondtimewillreleasethetemperatureandiftheprobe
isattachedreadingswillcontinuetobetakenasnormal.Iftheprobeisnotattached,the
instrumentwillusethedefaultreadings.

Store
5
Numberofreadingsstored.
Upto4000readingscanbestored.
ForinformationonstoringdatamanuallyseeKeypadControlspage02.
ForinformationondataloggingseeOptionMenupage21.

AvPre:36.5AveragePressureofthestoredreadings.
AnAveragePressureistakenforeachUnitofMeasurementineachLocation.
Thisisthendisplayedonthescreen.Storedvaluescanbeviewedin‘ReviewResults’.

S1
L1AutoZero...
0.0Pa
23.3°CH Store
AvPre: 36.5 5

VELOCITYMODEDISPLAY ST6InstructionManual
Page05
modeldependent


PT:1.000PitotTubeFactor.
Upto5differentPitotTubeFactorscanbestored.
ToinputPitotTubeFactorsseeUserMenupage15.
ToselectaPitotTubeFactorseeOptionMenupage20.

A:1AreaSetting.
Upto5differentAreaSettingscanbestored.
ToinputAreaSettingsseeUserMenupage14.
ToselectAreaSettingsseeOptionMenupage19.

S1Speed.
Thereare5differentspeedsettings.
Usethe‘speed’keytotogglebetweenspeedsettings.

L1Locationnumber.
StoredatainuptoninedifferentLocationsseeOptionMenupage19.
Theinstrumentwillgiveanaveragevalueinthemodeofoperationfordatathatis
storedinthesameunitsofmeasurementandlocation.
WhendataisdownloadedtoaPCitwillbelistedundertheLocationinwhichitisstored.

AutoZero...WhenevertheAutoZerosequenceisinitiatedmanuallyoratpreset‘AutoZero...’will
bedisplayeduntilthecycleiscomplete.

0.0m/sUnitofMeasurement.
Usethe‘units’keyorthe◄and►keystotogglebetweenunitsofmeasurement.

23.3°CTemperatureProbereading.
Thisisnotdisplayedwhenthetemperatureprobeisnotattached.

HWhenthe‘holdtemp’keyispressed‘H’willbedisplayedafterthetemperaturereading,
signallingthatthetemperatureisbeingheld.
Thetemperaturewillbeheldeveniftheprobeisdetached,untilthe‘holdtemp’keyis
pressedasecondtime.
Pressingthe‘holdtemp’keyasecondtimewillreleasethetemperatureandiftheprobe
isattachedreadingswillcontinuetobetakenasnormal.Iftheprobeisnotattached,the
instrumentwillusethedefaultreadings.

Store
5
Numberofreadingsstored.
Upto4000readingscanbestored.
ForinformationonstoringdatamanuallyseeKeypadControlspage02.
ForinformationondataloggingseeOptionMenupages21.

AvVel:5.6AverageVelocity ofthestoredreadings.
AnAverageVelocityistakenforeachUnitofMeasurementineachLocation.
Thisisthendisplayedonthescreen.Storedvaluescanbeviewedin‘ReviewResults’.

PT:1.000 A:1 S1
L1AutoZero...
0.0m/s
23.3°CH Store
AvVel: 5.6 5

ST6InstructionManual
Page06LIVEVOLUMEDISPLAY
modeldependent

LiveVolumecanonlybeactivatedwhenAreaSettingshavebeenstored. SeeUserMenupage14.
ToaccesstheLiveVolumeDisplaypressthe▼keywheninVelocityMode.
ToreturntoVelocityModepressthe▲key.


PT:1.000PitotTubeFactor.
Upto5differentPitotTubeFactorscanbestored.
ToinputPitotTubeFactorsseeUserMenupage15.
ToselectaPitotTubeFactorseeOptionMenupage20.

A:1AreaSetting.
Upto5differentAreaSettingscanbestored.
ToinputAreaSettingsseeUserMenupage14.
ToselectAreaSettingsseeOptionMenupage19.

S1Speed.
Thereare5differentspeedsettings.
Usethe‘speed’keytotogglebetweenspeedsettings.

L1Locationnumber.
StoredatainuptoninedifferentLocationsseeOptionMenupage19.
Theinstrumentwillgiveanaveragevalueinthemodeofoperationfordatathatis
storedinthesameunitsofmeasurementandlocation.
WhendataisdownloadedtoaPCitwillbelistedundertheLocationinwhichitisstored.

AutoZero...WhenevertheAutoZerosequenceisinitiatedmanuallyoratpreset‘AutoZero...’will
bedisplayeduntilthecycleiscomplete.

0.0L/s
UnitofMeasurement. TheLiveVolumeistheVelocitymultipliedbytheArea.
Form/stheresultsareinL/s;forft/mintheresultsareincfm.
InLiveVolumeModetheunitsofmeasurementcannotbechanged.

23.3°CTemperatureProbereading.
Thisisnotdisplayedwhenthetemperatureprobeisnotattached.

HWhenthe‘holdtemp’keyispressed‘H’willbedisplayedafterthetemperaturereading,
signallingthatthetemperatureisbeingheld.
Thetemperaturewillbeheldeveniftheprobeisdetached,untilthe‘holdtemp’keyis
pressedasecondtime.
Pressingthe‘holdtemp’keyasecondtimewillreleasethetemperatureandiftheprobe
isattachedreadingswillcontinuetobetakenasnormal.Iftheprobeisnotattached,the
instrumentwillusethedefaultreadings.

Store
5
Numberofreadingsstored.
Upto4000readingscanbestored.
ForinformationonstoringdatamanuallyseeKeypadControlspage02.
ForinformationondataloggingseeOptionMenupages21.

AvVol:47.5AverageVolume ofthestoredreadings.
TheAverageVolumeisafunctionofVelocitymultipliedbyArea,seepage11.

PT:1.000 A:1 S1
L1AutoZero...
0.0L/s
23.3°CH Store
AvVol: 47.5 5

VOLUMEMODEDISPLAY ST6InstructionManual
Page07
modeldependent


+1.0/‐1.0KFactor.
Upto4differentKFactorscanbestoredandaUserValuecanbetemporarilyinput.
TosetdefaultKFactorsseeUserMenupage15.
ToselectaKFactorortoinputatemporaryUserValueseeOptionMenupage20.

S1Speed.
Thereare5differentspeedsettings.
Usethe‘speed’keytotogglebetweenspeedsettings.

L1Locationnumber.
StoredatainuptoninedifferentLocationsseeOptionMenupage19.
Theinstrumentwillgiveanaveragevalueinthemodeofoperationfordatathatis
storedinthesameunitsofmeasurementandlocation.
WhendataisdownloadedtoaPCitwillbelistedundertheLocationinwhichitisstored.

AutoZero...WhenevertheAutoZerosequenceisinitiatedmanuallyoratpreset‘AutoZero...’will
bedisplayeduntilthecycleiscomplete.

0.0
m3/
sec
UnitofMeasurement.
Usethe‘units’keyorthe◄and►keystotogglebetweenunitsofmeasurement.

23.3°CTemperatureProbereading.
Thisisnotdisplayedwhenthetemperatureprobeisnotattached.

HWhenthe‘holdtemp’keyispressed‘H’willbedisplayedafterthetemperaturereading,
signallingthatthetemperatureisbeingheld.
Thetemperaturewillbeheldeveniftheprobeisdetached,untilthe‘holdtemp’keyis
pressedasecondtime.
Pressingthe‘holdtemp’keyasecondtimewillreleasethetemperatureandiftheprobe
isattachedreadingswillcontinuetobetakenasnormal.Iftheprobeisnotattached,the
instrumentwillusethedefaultreadings.

Store
5
Numberofreadingsstored.
Upto4000readingscanbestored.
ForinformationonstoringdatamanuallyseeKeypadControlspage02.
ForinformationondataloggingseeOptionMenupages21.

AvVol:0.5AverageVolumeofthestoredreadings.
AnAverageVolumeistakenforeachUnitofMeasurementineachLocation.
Thisisthendisplayedonthescreen.Storedvaluescanbeviewedin‘ReviewResults’.

+1.0/‐1.0 S1
L1AutoZero...
0.0m3/
sec
23.3°CH Store
AvVol: 0.5 5

ST6InstructionManual
Page08TEMPERATUREMODEDISPLAY

ToaccesstheTemperatureModeDisplaypressthe▲keywhileinMeasurementMode.
ToreturntoMeasurementModepressthe▼key.

DisplaywithTemperatureProbe:

Max:22.8MaximumProbeReading.

Min:22.3MinimumProbeReading.

°CUnitofMeasurement


DisplaywithoutTemperatureProbe:

‐‐‐‐‐

NoProbeAttached

Default=
16°C
InstrumentDefaultTemperature.
Tochangethedefaultvalue,ortochangethedefaultsettingfrom°Cto°F,
seeUserMenupage16.
ToinputatemporaryvalueseeOptionMenupage20.

Max:22.8 Min:22.3
22.5°C
‐‐‐‐‐
Default=16°C