ThePTX7900seriescombinesmodulardesignwith
thelatestadvancesinASICtechnologyandsurface
mountedelectronics.Thisprovidesalightweightand
costeffectivealternativetopressuregaugesand
switchesinprocessindustryapplications.
AttheheartofthetransmitterisGEDruck’sownpiezo-
resistivesiliconsensor.Thistechnologyisextensively
qualifiedandproven,forexampleinaerospaceand
subseaprogrammeswhichdemandthehighestlevels
ofperformanceandlongtermreliability.
AHastelloyisolationdiaphragmandelectronbeam
weldedstainlesssteelbody,ensurescompatibilitywith
awiderangeofhostilemedia.A316stainlesssteel
electronicshousingwithaluminium/bronzeendcap,
providesamaintenance-freeassemblysuitableforthe
mostarduousenvironments.
ThePTX7900pressuretransmitteralsooffersexcellent
RFIimmunity,meetingthehighestlevelofCEmarking
requirementsforheavyindustrialuse.
GEDruck
g
PTX7900Series
PressureTransmitters
H18546Standardrangesorcustomscaled
H18546Gaugeandabsoluteconfigurations
H18546Hastelloyandstainlesssteelconstruction
H18546Useraccessiblezeroandspanadjustment
H18546RFIprotectedtoCEHeavyIndustrial
H18546ATEXIntrinsicallySafeandFlameproof
versions
OPTIONS
(O)Standard-CECategory1Pressure
AccessorytoPressureEquipmentdirective
(PED)97/23/EC.Note:‘OperatingPressure
Range’isequivalenttomaximumworking
pressure(Ps)asreferredtointhePED
(I)IntrinsicallySafeApproval
1180
II1GEExiaIICT4(Ta=80H11034C)
toATEXdirective94/9/EC
(D)FlameproofApproval
1180
II2GEExdIICT6(Ta=70H11034C)
toATEXdirective94/9/EC
OtherTclassandambienttemperature
available.
AlloptionsarecompliantwithEMC
Directive89/336/EEC
EMCEmissions:EN50081-1,EN55022
EMCImmunity:EN61000-6-2:1999
(10V/mHeavyIndustrial).
ORDERINGINFORMATION
(1)Selectmodelnumber:
CodeModel
PTX7900BaseModel-M20femaleconduitentry
PTX7901BaseModel-1/2”NPTfemaleconduitentry
PTX7902BaseModel-Pg13.5femaleconduitentry
CodePressureConnection
1G
1
/
2
Female
2G
1
/
2
MaletoBSEN387-1
3
1
/
2
NPTFemale
4
1
/
2
NPTMale
CodeApprovals
0None-SafeAreause
IATEXIntrinsicallySafe
DATEXFlameproof
PTX7900-1-DTypicalModelNo.
(2)Statepressurerange/units
Continuingdevelopmentcannecessitate
specificationchangeswithoutnotice.
STANDARDSPECIFICATIONS
PressureMeasurement
OperatingPressureRanges
0to100,160,250mbar,500mbar,1,2,3.5,7,10,
20,35,70bargaugeandabsolute.0to140,200,
350,700barsealedgaugeandabsolute.
Compoundrangesavailableonrequest.Note:
Anypressureunitandspancanbespecified
between100mbarand700barF.S.
Overpressure
Theoperatingrangecanbeexceededbythe
followingwithoutdegradingperformance:
12xfor100mbar
8xfor160mbarrange
6xforranges250and500mbar
4xforranges1and2bar
3xforranges3.5to140bar(200barmax)
2xforranges200to700bar(1000barmax)
PressureContainment
Gaugeranges:
16xfor100mbar
12xfor160mbarrange
8xforranges250and500mbar
6xforranges1and2bar
4xforranges3.5to70bar(250barmax)
Absolute/sealedgaugeranges:
250barforabsoluteranges100mbarto140bar.
1000barfor200barto700barranges
PressureMedia
Fluidscompatiblewith316Lstainlesssteeland
HastelloyC276.(NACEcompatiblegrades).
SupplyVoltage
9to30VatPTXterminals.(9to28VforISunits).
Maximumload(H9024)=50x(SupplyVoltage-9).
SupplySensitivity
0.005%F.S./Volt.
InsulationResistance
>10MH9024@500Vd.c.(@20H11034C).
SurgeProtection
Withstands2kVspike.
SpiketestconformstoEN61000-4-5.
OutputCurrent
4-20mA(2-wire)forzerotoFSpressure.
Performance
Accuracy
H115060.25%F.S.CombinedNon-linearity,
HysteresisandRepeatability.
ZeroOffsetandSpanSetting
Factoryset±0.05mA.Furthernominal±5%site
adjustmentvianon-interactingpotentiometers.
LongTermStability
Atstandardreferenceconditionsthecalibration
willnotchangebymorethan0.1%F.S.peryear.
OperatingTemperatureRange
Ambient:-40to100H11034C
Process:-40to120H11034C
TemperatureEffects
Forranges500mbarandabove,outputwillnot
deviatefromroomtempcalibrationbymorethan:-
1%F.S.over-10H11034to50H11034C(0.7%F.S.typical)
2%F.S.over-20H11034to80H11034C(1.5%F.S.typical)
(<500mbar,valuesincreasepro-ratawithspan.)
Physical
PressureConnection
G
1
/2female,G
1
/2maletoBSEN387-1
(DIN16288),
1
/2NPTfemaleor
1
/2NPTmale.
ElectricalConnection
M20
1
/2femaleconduit.
1/2NPTorPG13.5femaleconduit(viaadaptor).
IngressProtection
DesignedtomeetIP67whenproperlyinstalled
withconduitfittingconnection.
Weight
1kgnominal.
INSTALLATIONDRAWINGS-Dimensionsinmm
?60
134
78
36
M20x1.5
44
19
38
1/2NPTMale
G1/2Male
G1/2or1/2NPT
(Female)
PTX7900Series
PressureTransmitters
DruckLimited
FirTreeLane,Groby,Leicester,LE60FH,UK
+44(0)1162317100Fax:+44(0)1162317103
E-Mail:sales@druck.comwww.druck.com
Agent:
05/04
GEDruck
g
Group
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