Hydac HDA4744A/400/00 Pressure Transmitters

Hydac

产品编号: HDA4744A/400/00
Artikelnummer: Art.Nr. 906604
生产厂家: Hydac
Confirmed Rating: ☆☆☆☆☆ ☆ (3.6)
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Datasheets for Hydac HDA4744A/400/00 Pressure Transmitters

Description for Hydac HDA4744A/400/00 Pressure Transmitters

Electronic Pressure Transmitter HDA 4700 with Flush MembraneIECEx Intrinsically Safe IECEx Dustproof Enclosure IECEx Non-sparking Characteristic                                              Value / Characteristic / InformationAccuracy                                                      0,25% typ.Approval                                                       UL approvalElectrical connection                                 Binder Serie 714 M18 /4pMechanical connection                            G1/4 A ISO 1179-2 /maleOutput signal                                              4..20mA (2-conductor)Pressure range max value                       250,0Pressure range min value                                    0,0Pressure unit                                              BARType of pressure                                         RelativePart no.: 907303 Product description: HDA 4744-A-250-000Protection types and applications: Ex ia l MaEx ia llC T6 GaEx ia llC T6 Ga/GbEx ia llC T6 GbEx nA llC T6,T5,T4 GcEx ic llC T6,T5,T4 GcEx ta lllC T80/90/100°C DaT500 90/100/110°C DaEx tb lllC T80/90/100°C DbEx tc lllC T80/90/100°C DcEx ic lllC T80/90/100°C DcEx ia lllC T85°C DaSpecial features:·         Pressure connection has a flush·         membrane·         Accuracy ≤ 0.25 % FS typ.·         Certificate: IECEx KEM 08.0014X·         Robust design·         Very small temperature error·         Excellent EMC characteristics·         Excellent long-term properties The pressure transmitter HDA 4700 inIECEx Intrinsically Safe version has beenespecially developed for use in potentiallyexplosive atmospheres and is based onthe HDA 4000 series. As with the industrial version of theHDA 4700, devices with IECExIntrinsically Safe approval have afield-proven, all-welded stainless steelmeasurement cell with thin-film straingauge without internal seal. The pressure connection is achievedwith an all-welded stainless steelfront membrane filled internally witha pressure transfer fluid. The processpressure is transmitted hydrostatically tothe measurement cell via the pressuretransfer fluid. This device is used for applications inwhich a standard pressure connectioncould become blocked, clogged orfrozen by the particular medium used. Further applications include processeswhere the medium changes regularlyand any residues could cause mixingor contamination of the media, or inhighly viscous media. Intended areas ofapplication are, for example, the oil andgas industry, in mines or in locations with high levels of dust, e.g. in mills.

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