DPI 610 AERO 便携式压力校准仪简要操作手册（英文）

GEInfrastructure

Sensing

DruckDPI610AERO

Portablepressurecalibrator/indicator

K237-SupplementtouserguideK213

Operation

DPI610AERO

3K237IssueNo.1

Contents

General

5

Introduction

6

PneumaticControls

7

ElectricalConnections

7

Operation

8

AltitudeSwitchTests

8

Method(WhereSwitchContactsAreAccessible)

9

Method(WhereSwitchContactsAreNotAccessible)

10

AltitudeLeakTests

11

Method

11

AirspeedSwitchTests

12

Method(WhereSwitchContactsAreAccessible)

13

Method(WhereSwitchContactsAreNotAccessible)

14

AirspeedLeakTests

15

Method

15

Figures

DPI610(AeronauticalOption)Controls6

DPI610(AeronauticalOption)PneumaticControls7

DPI610(AltitudeSwitchTestConnections)9

DPI610(AirspeedSwitchTestConnections)13

5K237IssueNo.1

Operation

DPI610AERO

General

ThispublicationcoverstheoperationoftheaeronauticalversionoftheDPI610PortablePressureCalibratorandshouldbereadinconjunctionwithDruckPublicationNo.K213.

Thefollowingkeysymbolsareusedintheprocedurediagramswhichfollowandarerepeatedhere(fromK213),toallowthissupplementtostandalone.Pages1to7ofK213detailtheoperatorcontrolsandgeneralinformationwhicharealsorelevanttotheAeroOptionoftheDPI610PressureCalibrator.

Shadedcursorkeysindicatethatacombinationofthesefourkeys,Up,Down,LeftandRightshouldbeusedto(e.g.)enteranalphanumericvalueortoselectafunction.

IndicatestheENTERkey.Usedtoconfirmanoperationoraselection.Shadingindicateskeyoperation.

Exitkey,usedtoclearcurrentmenuselectionandreturntonextmenulevelabovecurrentlevel.Usedasanescapekeyfromcurrentoperation.Shadingindicateskeyoperation.

Hardkey(total7).Legendbesidekeysymbolindicatesfunction.Shadingindicateskeyoperation.

MaximumInstrumentRatings

Thefollowingtableshowsthemaximummeasurementratingsofthestandardinstrumentwhichshouldnotbeexceeded.Pressureoverrange(120%ofFS)isindicatedbythepressuredisplayflashing.Voltageorcurrentoverrange(110%ofmax),causeseitherthevoltageorcurrentdisplaytoflash.

Note:WhentheAEROtaskisselected,thedisplayflashesifthevoltageorcurrentinput

overrangesby110%oftheabovemaximumvalues.Thepressuredisplayflashesataltitudesbelow-3000ftandabove50,000ftoratairspeedsgreaterthan600knots,dependinguponthemodeselected.

K237IssueNo.16

DPI610AERO

Operation

Introduction

Thisspecial,2barabsolute(59inHgabsolute)versionoftheDPI610providesmanualgenerationofpressureandvacuumfortestingofaircraftPitotandStaticsystems.Ithasaspecialpneumaticmanifoldandoutputportassembly,theoutputofthepumpbeingsuitablyregulatedtopreventoverpressure/vacuumfrombeingappliedtotheaircraft’sinstruments.Theventline,controlledbythereleasevalve,isalsothrottledtoallowacontrolledventrateinordertoprotecttheaircraft’ssystemsandinstruments.

Asecond,manualletdownvalve,fitteddirectlytotheoutputport,allowsthesystemtobemanuallyvented(returnedtogroundlevel)bytheoperatorwhentheoutputisatasafeoperationalleveli.e.<1500ft.FigureB1showsthearrangementoftheinstrument.TheAeronauticaloptionisconfiguredasaspecialtaskandcanbeaccessedonlyfromtheTASKmenu.AllotherfunctionsandtasksoftheDPI610areavailableontheAeronauticalversion.

FigureB1-DPI610(AeronauticalOption)Controls

7K237IssueNo.1

Operation

DPI610AERO

PneumaticControls

FigureB2showsdetailsofthepneumaticcontrols.TheoutputportisanAN4connectortowhichtheusermustmakehisownconnection.

Note:Theinstrumentisdesignedtooperatewith5metresof6mmborepipeattached.

FigureB2-DPI610PneumaticControls

ElectricalConnections

Detailsoftheelectricalconnectionstotheinstrumentaregivenonpage6ofK213andPage7ofthatpublicationgivesdetailsoffittingbatteriesandbatterycharging.

Note:UnitnolongerrequirestobeswitchedontochargetheinternalNiCadpack.

K237IssueNo.18

DPI610AERO

Operation

Operation

TwotypesoftestcanbeconductedbyuseoftheaeronauticalversionoftheDPI610,aswitchtestandaleaktestforaircraftAltitude(Static)andAirspeed(Pitot)systems.

Toselecttheaeronauticaloptionfromtaskmenu,proceedasfollows.

TASK

TASKS

BASIC

P-I

P-P

P-V

I-P

SELECTTASK

TASKS

ADVANCED

AERO

USERTASKS

SELECTTASK

AltitudeSwitchTests

AfterselectionoftheaeronauticalAEROoption,

rSelectAltitudeSWITCHTESTasfollows.

rIfnecessary,selectAltitudeunitsasfollows.

9K237IssueNo.1

Operation

DPI610AERO

r

r

Ifrequired,applypressureofthedaycorrection(POD),byselectingPODadjustmentasfollows.

ObtainQFEpressurereadingfrombarometer(POD)andentercorrectionasfollows.(e.g.).Note:ThecurrentPODstatusi.e.eitherOfforcurrentvalueisdisplayed.ThePODRESETkey(F2),setsthecurrentPODcorrectiontoOff.

Method(WhereSwitchContactsAreAccessible)

(1)ConnecttheinstrumenttotheexternalstaticsystemasshowninFigureB3.

Note:Contactsmustbepotentialfree.

FigureB3-DPI610(AltitudeSwitchTestConnections)

K237IssueNo.110

DPI610AEROOperation

(2)Ensurethatnegativepressureisselectedandclosethereleasevalve.

(3)ClosetheManualLetdownValve.

(4)PresstheRUNkey(F1)andoperatethehandpump.Continueuntilswitchoperatesasshownbelow.

(5)Openthereliefvalveandallowvacuumtodecreaseuntilswitchoperatesagainasshownabove.Theoperatingpressuresandhysteresiswillbeindicated.

(6)Recordthedisplayedoperatingpressures.

(7)Allowvacuumtofalluntiltheindicatedaltitudeisbelow1500ft.

(8)SlowlyopentheManualLetdownValvetoreturnthesystemtogroundlevel.

(9)ToperformanotherswitchtestpressRUN(F1).

(10)Tocancelswitchtestmode,pressTASK.

Method(WhereSwitchContactsareNotAccessible)

WhenthepressureswitchcontactsareunavailableforconnectiontotheDPI610,anexternalindicatororannunciatormustbeusedasanindicationthatthepressureswitchhasoperated.Thetestmethodisexactlythesameaspreviouslydescribed,exceptthattheMANUALOPERATION(F2)keyisusedbytheoperatoronreceiptofanindicationofswitchoperation.Atypicalsequenceisshownbelow.

11K237IssueNo.1

Operation

AltitudeLeakTests

DPI610AERO

AfterselectionoftheaeronauticalAEROoption,

rSelectAltitudeLEAKTESTasfollows.

rIfnecessary,selectAltitudeLEAKTESTunitsasfollows.

Method

(1)Connectinstrumenttoexternalstaticsystemand,Ifrequired,applypressureofthedaycorrection(POD)asdetailedonpage9.

(2)ClosetheReleaseValveandManualLetdownValveandusethehandpumptosetinstrumentpressuretotherequiredaltitudereading(SeeFigureB2).

(3)SetWAITandDURATIONofleaktesttimesasfollows.

K237IssueNo.112

DPI610AERO

Operation

(4)Whenready,presstheRUNkey(F2).Theleaktestproceedsasfollows(e.g.),

Initially,theWAITperiodcountsdown,followedbytheTIMINGperiod.TheSTARTALTisrecordedassoonasthetimingperiodstarts.

(5)Recordthedisplayedoperatingpressures.

(6)Toconductanotherleaktest,usethehandpumptosetanewsystempressureandpressRUN(F2)again.

(7)Uponcompletionoftest,allowvacuumtofalluntilaltitudeisbelow1500ft.

(8)SlowlyopentheManualLetdownValvetoreturnthesystemtogroundlevel.

(9)Tocancelleaktestmodeaftercompletionoftest,pressTASK.

AirspeedSwitchTests

AfterselectionofthetheaeronauticalAEROoption,

rSelectAirspeedSWITCHTESTasfollows,

13K237IssueNo.1

Operation

DPI610AERO

rIfnecessary,selectairspeedunitsasfollows.

Method(WhenSwitchContactsAreAccessible)

(1)ConnecttheinstrumenttotheexternalstaticsystemasshowninFigureB4.

Ensurethatthesystemisventedpriortocommencementofthetest.

Note:Contactsmustbepotentialfree.

FigureB4-DPI610(AirspeedSwitchTestConnections)

K237IssueNo.114

DPI610AEROOperation

(2)Ensurethatpositivepressureisselectedandclosethereleasevalve.

(3)ClosetheManualLetdownValve.

(4)ZerothespeedreadingbypressingtheZEROkey.

(5)PresstheRUNkey(F1)andoperatethehandpump.Continueuntilswitchoperatesasshownbelow.

(6)Openthereliefvalveandallowpressuretodecreaseuntilswitchoperatesagainasshownabove.Theoperatingpressuresandhysteresiswillbeindicated.

(7)Recordthedisplayedoperatingpressures.

(8)AllowpressuretofalluntiltheindicatedAirspeedisbelow80kts.

(9)SlowlyopentheManualLetdownValvetoreturnsystemtogroundlevel.

(10)Toperformanotherswitchtest,pressRUN(F1)andrepeattheaboveprocedure.

(11)Tocancelswitchtestmode,pressTASK.

Method(WhenSwitchContactsAreNotAccessible)

WhenthepressureswitchcontactsareunavailableforconnectiontotheDPI610,anexternalindicatororannunciatorisusedastheindicationthatthepressureswitchhasoperated.Thetestmethodisexactlythesameaspreviouslydescribed,exceptthattheMANUALOPERATION(F2)keyisusedbytheoperatortoindicateswitchoperation.Atypicalsequenceisshownbelow.

15K237IssueNo.1

Operation

AirspeedLeakTests

DPI610AERO

AfterselectionofthetheaeronauticalAEROoption,

rSelectAirspeedLEAKTESTasfollows.

rIfne