EP1158476A1 - Mesureur bifilaire, sa méthode à tester et son arrangement de test - Google Patents

Mesureur bifilaire, sa méthode à tester et son arrangement de test Download PDF

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Publication number
EP1158476A1
EP1158476A1 EP00110818A EP00110818A EP1158476A1 EP 1158476 A1 EP1158476 A1 EP 1158476A1 EP 00110818 A EP00110818 A EP 00110818A EP 00110818 A EP00110818 A EP 00110818A EP 1158476 A1 EP1158476 A1 EP 1158476A1
Authority
EP
European Patent Office
Prior art keywords
iec
measuring device
current
electrical system
transport
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00110818A
Other languages
German (de)
English (en)
Inventor
Georg Dr. Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Endress and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Priority to EP00110818A priority Critical patent/EP1158476A1/fr
Priority to KR1020027015712A priority patent/KR100673502B1/ko
Priority to DE50115072T priority patent/DE50115072D1/de
Priority to US10/276,298 priority patent/US6967486B2/en
Priority to PCT/EP2001/004386 priority patent/WO2001091082A2/fr
Priority to AT01943257T priority patent/ATE441168T1/de
Priority to EP01943257A priority patent/EP1287511B1/fr
Priority to AU65880/01A priority patent/AU6588001A/en
Publication of EP1158476A1 publication Critical patent/EP1158476A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage

Definitions

  • the invention relates to two-wire measuring devices, methods for their testing and suitable test arrangements.
  • Two-wire measuring devices are known Measuring devices that only have two conductors L1, L2, their electrical connection from and to the outside enable. These two leaders must be both for the Energy supply as well as for the transmission of one of the Measuring signal generated measuring device can be used.
  • the ones from Two-wire measuring device are measured signal values a standardized range from 4 mA to 20 mA associated direct currents that a current value within this range corresponds exactly to a measurement signal value.
  • the aforementioned energy supply takes place by means of an Operation on the two conductors connected from outside, delivering a DC voltage to a primary network NP belonging DC voltage source G, so that there is a so-called current loop closes.
  • a current measuring resistor Rm on which one for current current value and thus proportional to the measurement signal Voltage can be picked up outside of the measuring device and is further processable.
  • the resistance Rm can be far from the two-wire measuring device MS 'be arranged; then he's over correspondingly long lines connected to it. So is one pole NP1 of the primary network NP with the conductor L1 of the Two-wire measuring device MS 'and the other pole NP2 with the connected a terminal of the resistor Rm while whose other connection, so to speak, as an indirect second Primary network connection NP2 'is connected to the conductor L2.
  • HART is a registered trademark of HART users Group and the acronym for "Highway Addressable Remote Transducer ", ie for bus-addressed measuring devices) has been around long known in industrial metrology and introduced.
  • the HART protocol enables communication between a field and a process control level with the advantage of simultaneous portability of an analog measurement signal according to the 4 mA to 20 mA standard and the digital HART signal for operation, commissioning, maintenance, Query or control of the measuring devices at the field level.
  • a digital zero is replaced by two Sine waves of frequency 2.2 kHz and a digital One by a single sinusoidal frequency 1.2 kHz according to the Bell 202 Frequency Shift standard Keying realized. These sine waves are over the transfer two conductors by the flowing in it Electricity can be modulated.
  • EMC electromagnetic Compatibility
  • test regulations presuppose that of the energy supply serving, from the DC voltage source Q outgoing primary network in addition to DC voltage too generated high-energy interference pulses, which one to the network connected two-wire measuring device MS 'must withstand.
  • test regulations simulate real conditions as they are occur in practice if two-wire measuring devices e.g. on Means of transport, especially on ships, are used should. In the primary electrical system NP installed on ships the mentioned interference pulses are often present, see. 1. FIG. 1. The two conductors L1, L2 of today's two-wire measuring devices with the standard IEC-1000-4-5: 1995 intended for power supply lines Test signals are tested and they are therefore opposite dimension these test signals to be resistant.
  • An object of the invention is a two-wire measuring device specify that to operate in a Transport, especially in a ship, is determined.
  • a Another object of the invention is a method for testing a two-wire measuring device electromagnetic compatibility, especially according to standard IEC-1000-4-5: 1995, to be specified for operation in a Transport, especially in a ship, is determined.
  • Yet another object of the invention is to provide a Test arrangement for testing a two-wire measuring device to indicate electromagnetic compatibility, which for the Operation in a means of transport, especially in a ship, is determined.
  • a method for issuing a To state the operating permit of a two-wire measuring device, that for operation in a means of transport, especially in a Ship is determined.
  • a major advantage of the invention is that in two-wire measuring devices used in means of transport, esp. in ships to be used, not expensive and storage space, suppressing interference pulses or filtering components are required and that anyway an operating license according to the standard IEC 1000-4-5: 1995 can be issued for such two-wire measuring devices.
  • a common two-wire measuring device MS e.g. with a standard housing Gh, as a circuit block illustrated.
  • the two-wire measuring device MS measured at least one physical quantity, e.g. the Volume or mass flow of a fluid, or further its density, viscosity, pressure, or temperature, or furthermore the pressure difference between two media or also in general temperature, pressure, level, pH or gas concentration.
  • the invention is not the measuring principle of the two-wire measuring device MS and its electronic circuit, esp. not its evaluation electronics, but its measurement principle-independent certification whose circuit block is not detailed and explained.
  • the two-wire measuring device MS is for operation in one Transport, especially in a ship, determined. There is it is powered by a current from a current loop that is from one according to a valid standard IEC-1000-4-5, esp. the Standard IEC-1000-4-5: 1995, certified by one Primary vehicle electrical system NP powered and the Supply of a secondary vehicle electrical system serving NS Source circuit Q comes.
  • the two connections NP1, NP2 are thus connected to supply connections the source circuit Q, of which an active Part of the simplicity as a source g one DC voltage is shown and to the filter components, such as. a coil L and a capacitor C, belong so that at the output of a secondary electrical system NS with the connections NS1, NS2 '.
  • the Current measuring resistor Rm between connection NS2 and Conductor L2 switched so that the measuring device side Connection of the resistor Rm as an indirect connection of the Secondary electrical system NS2 'can be called.
  • the filter components are dimensioned, designed and designed that the secondary vehicle electrical system NS a valid Standard IEC-1000-4-5, especially the standard IEC-1000-4-5: 1995, corresponds and therefore according to this Standard can be checked and certified.
  • the two-wire measuring device is intended for operation in the means of transport MS fed by a current of a current loop be, the current of which according to a valid standard IEC-1000-4-5, especially the standard IEC-1000-4-5: 1995, certified by the primary vehicle electrical system NP of the means of transport fed and the supply of the secondary electrical system NS serving source circuit Q comes.
  • This is enough Test regulations of the valid standard IEC-1000-4-5 and is or has already been EMC-certified So this operating license or the corresponding one Certificate.
  • the operating license of the two-wire measuring device MS so his EMC certificate is now given to him according to the valid standard IEC-1000-4-5 only issued if it without according to the test regulations of the applicable standard IEC-1000-4-5: 1995
  • To be EMC certified in the means of transport exclusively on its EMC-certified secondary electrical system is operated.
  • To meet this requirement can the two-wire measuring device MS e.g. with a appropriately dimensioned connection-connecting device be equipped.
  • the method according to the invention for testing the Two-wire measuring device MS on electromagnetic Compatibility, that for the operation in one Transport, especially in a ship, is determined as follows (also here the measuring device MS from explained current of the source circuit Q containing Current loop fed:
  • a hybrid generator especially according to the standard IEC-60-1 or IEC 469-1, generates a current / voltage surge, especially in this standard with regard to the time course of the Open circuit voltage and the time course of the Short-circuit current defined current / surge.
  • the Hybrid generator is also one of the standards mentioned defined decoupling network to simulate the Source circuit Q and the decoupling network that Test regulations of the standard IEC-1000-4-5: 1995 not sufficient two-wire measuring device MS downstream.
  • the operating license for operation on the secondary vehicle electrical system NS the means of transport, especially the ship, will be of the same type other two-wire measuring devices and thus the EMC certification granted them when the tested two-wire measuring device MS withstood the test.
  • a test arrangement according to the invention for testing a two-wire measuring device for electromagnetic compatibility that for the operation in a means of transport, esp. in one Ship, is determined, includes the hybrid generator already mentioned, esp. according to standard IEC-60-1 or IEC 469-1, for Generating the explained current / voltage surge that the Hybrid generator downstream decoupling network for Simulate the secondary electrical system NS and that Decoupling network downstream, according to the Test regulations of the valid standard IEC-1000-4-5 not certified two-wire measuring device.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
EP00110818A 2000-05-22 2000-05-22 Mesureur bifilaire, sa méthode à tester et son arrangement de test Withdrawn EP1158476A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP00110818A EP1158476A1 (fr) 2000-05-22 2000-05-22 Mesureur bifilaire, sa méthode à tester et son arrangement de test
KR1020027015712A KR100673502B1 (ko) 2000-05-22 2001-04-18 2-도체-측정 장치, 상기 측정 장치를 테스트하기 위한방법 및 장치
DE50115072T DE50115072D1 (de) 2000-05-22 2001-04-18 Schaltungsanordnung und verkehrsmittel beinhaltend ein zwei-leiter-messgerät sowie verfahren zu dessen prüfung
US10/276,298 US6967486B2 (en) 2000-05-22 2001-04-18 Two conductor measuring device, method for testing the same and testing system therefor
PCT/EP2001/004386 WO2001091082A2 (fr) 2000-05-22 2001-04-18 Appareil de mesure en technique deux fils, procede d'essai de cet appareil, et dispositif d'essai associe
AT01943257T ATE441168T1 (de) 2000-05-22 2001-04-18 Schaltungsanordnung und verkehrsmittel beinhaltend ein zwei-leiter-messgerät sowie verfahren zu dessen prüfung
EP01943257A EP1287511B1 (fr) 2000-05-22 2001-04-18 Circuit et vehicule comprenant un appareil de mesure en technique deux fils et procede d'essai de cet appareil
AU65880/01A AU6588001A (en) 2000-05-22 2001-04-18 Two conductor measuring device, method for testing the same and testing system therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00110818A EP1158476A1 (fr) 2000-05-22 2000-05-22 Mesureur bifilaire, sa méthode à tester et son arrangement de test

Publications (1)

Publication Number Publication Date
EP1158476A1 true EP1158476A1 (fr) 2001-11-28

Family

ID=8168791

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00110818A Withdrawn EP1158476A1 (fr) 2000-05-22 2000-05-22 Mesureur bifilaire, sa méthode à tester et son arrangement de test
EP01943257A Expired - Lifetime EP1287511B1 (fr) 2000-05-22 2001-04-18 Circuit et vehicule comprenant un appareil de mesure en technique deux fils et procede d'essai de cet appareil

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP01943257A Expired - Lifetime EP1287511B1 (fr) 2000-05-22 2001-04-18 Circuit et vehicule comprenant un appareil de mesure en technique deux fils et procede d'essai de cet appareil

Country Status (7)

Country Link
US (1) US6967486B2 (fr)
EP (2) EP1158476A1 (fr)
KR (1) KR100673502B1 (fr)
AT (1) ATE441168T1 (fr)
AU (1) AU6588001A (fr)
DE (1) DE50115072D1 (fr)
WO (1) WO2001091082A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005047894B4 (de) * 2005-10-06 2010-05-12 Abb Ag Verfahren zur Prüfung der Betriebsfähigkeit von Messumformern
KR20130087150A (ko) * 2012-01-27 2013-08-06 한국전자통신연구원 반도체 칩의 ｅｍｃ 측정용 지그 및 이를 이용한 반도체 칩의 ｅｍｃ 측정 방법
US9527395B2 (en) 2014-05-02 2016-12-27 Fca Us Llc Access arrangement for the power system of an electric vehicle
DE102014011717B4 (de) * 2014-08-06 2021-11-18 Abb Schweiz Ag Verfahren und Vorrichtung zur eigensicheren, redundanten Stromversorgung von Feldgeräten

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331912A (en) * 1980-10-06 1982-05-25 Rosemount Inc. Circuit for converting a non-live zero current signal to a live zero DC output signal
EP0895209A1 (fr) * 1997-07-21 1999-02-03 Emerson Electric Co. circuit de gestion d'énergie amélioré

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5748008A (en) * 1995-12-06 1998-05-05 Landreth; Keith W. Electrical integrity test system for boats
US6265879B1 (en) * 1999-07-14 2001-07-24 Keith W. Landreth Electrical integrity test system for boats
US6559660B1 (en) * 2001-08-20 2003-05-06 Brunswick Corporation Method and apparatus for testing an electrical system of a marine vessel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331912A (en) * 1980-10-06 1982-05-25 Rosemount Inc. Circuit for converting a non-live zero current signal to a live zero DC output signal
EP0895209A1 (fr) * 1997-07-21 1999-02-03 Emerson Electric Co. circuit de gestion d'énergie amélioré

Also Published As

Publication number Publication date
ATE441168T1 (de) 2009-09-15
KR100673502B1 (ko) 2007-01-24
WO2001091082A3 (fr) 2002-10-10
AU6588001A (en) 2001-12-03
US6967486B2 (en) 2005-11-22
DE50115072D1 (de) 2009-10-08
EP1287511B1 (fr) 2009-08-26
US20030122537A1 (en) 2003-07-03
EP1287511A2 (fr) 2003-03-05
KR20030024677A (ko) 2003-03-26
WO2001091082A2 (fr) 2001-11-29

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