EP1287511B1 - Circuit arrangement and vehicle comprising a two conductor measuring device and method for testing the same - Google Patents
Circuit arrangement and vehicle comprising a two conductor measuring device and method for testing the same Download PDFInfo
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- EP1287511B1 EP1287511B1 EP01943257A EP01943257A EP1287511B1 EP 1287511 B1 EP1287511 B1 EP 1287511B1 EP 01943257 A EP01943257 A EP 01943257A EP 01943257 A EP01943257 A EP 01943257A EP 1287511 B1 EP1287511 B1 EP 1287511B1
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- 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 containing circuitry and means of transport, and a method for their testing.
- Two-wire measuring devices are known to be measuring devices that have only two conductors L1, L2, which allow their electrical connection to and from the outside. These two conductors must be used both for the power supply and for the transmission of a measuring signal generated by the measuring instrument.
- the measured signal values delivered by the two-wire measuring device are a standardized range of 4 mA to 20 mA DC currents assigned in such a way that a current value within this range corresponds exactly to one measured signal value.
- Two-wire gauges of the aforementioned type are well known to the skilled person and, for example, in the EP-A 895 209 or the US-A 43 31 912 described in detail.
- the mentioned power supply takes place by means of a connected in operation to the two conductors from outside, a DC voltage, belonging to a Primäx network NP DC voltage source G, so that closes a so-called current loop.
- a current measuring resistor Rm at which a voltage proportional to the instantaneous current value and thus to the measuring signal can be picked up and further processed outside the measuring device.
- the resistor Rm may be located far from the two-wire measuring device MS '; then he is connected via correspondingly long lines.
- the one pole is NP1 of the primary network NP with the conductor L1 of the two-conductor measuring device MS 'and the other pole NP2 connected to one terminal of the resistor Rm, while the other terminal so to speak, as an indirect second primary network connection NP2 'is connected to the conductor L2.
- digital signals can also be transmitted according to one of the usual standards, such as the so-called HART protocol.
- the HART protocol (HART is a registered trademark of the HART User Group and the acronym for "Highway Addressable Remote Transducer", ie for bus-addressed measuring devices) has long been known and introduced in industrial metrology.
- the HART protocol enables communication between a field and a process control level with the benefit of the simultaneous transferability of an analog measurement signal according to the 4 mA to 20 mA standard and the digital HART signal for commissioning, maintenance, query or Control of the measuring instruments in the field level.
- a cyclic polling and possibly a subsequent instruction is performed by the digital HART signals.
- a digital zero is realized by two sine waves of frequency 2.2 kHz and a digital one by a single sine wave of frequency 1.2 kHz according to the standard Bell 202 frequency shift keying. These sine waves are transmitted through the two conductors by modulating them on the current flowing through them.
- EMC electromagnetic compatibility
- test regulations presuppose that the primary power supply system, which is used by the DC voltage source G, also generates energy-rich interference pulses to which a two-wire measuring device MS 'connected to the network has to withstand.
- test regulations reproduce real states, as they occur in practice, when two-wire measuring devices are to be used, for example, on means of transport, in particular on ships. Namely, in the primary on-board network NP installed on ships, the interfering impulses mentioned are frequently present, cf. this the Fig. 1 , Thus, the two conductors L1, L2 of today's two-wire meters must be tested with the test signals provided by the IEC-1000-4-5: 1995 standard for power supply lines, and they must therefore be designed to be resistant to these test signals.
- Another task is to specify a suitable means of transport.
- An essential advantage of the invention is that in two-wire gauges, which are to be used in transport, esp. In ships, no costly and storage space-requiring, interference suppression or filtering components are required and that nevertheless an operating license after Standard IEC 1000-4-5: 1995 can be issued for such two-wire measuring instruments.
- FIG. 2 in which in the form of a block diagram schematically an embodiment of a operated according to the invention, two-wire measuring device is shown.
- Fig. 2 is a conventional two-wire meter MS, for example, with a standard housing Gh, as a circuit block illustrated.
- the two-wire measuring device MS at least one physical quantity is measured, for example the volume or mass flow rate of a fluid, or further its density, viscosity, pressure or temperature, or furthermore the pressure difference between two media or else generally temperature , Pressure, level, pH or gas concentration.
- the two-wire measuring device MS is intended for operation in a means of transport, in particular in a ship. There it is fed by a current from a current loop which is powered by a standard IEC-1000-4-5, in particular the IEC-1000-4-5: 1995 standard, fed by a primary on-board network NP of the means of transport and the supply of a secondary electrical system NS serving source circuit Q comes.
- the two terminals NP1, NP2 are thus connected to supply terminals of the source circuit Q, one of which is active Part is shown for the sake of simplicity as a source g of a DC voltage 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 terminals NS1, NS2 arises.
- the current measuring resistor Rm is connected between the terminal NS2 and the conductor L2, so that the measuring device-side terminal of the resistor Rm can be referred to as the indirect connection of the secondary onboard electrical system NS2 '.
- the filter components are dimensioned, designed and designed in such a way that the secondary on-board electrical system NS complies with a valid IEC-1000-4-5 standard, in particular the IEC-1000-4-5: 1995 standard, and is therefore tested according to this standard and can be certified.
- the two-wire measuring device MS surprisingly only needs to be designed so that it is not EMC-certified for electromagnetic compatibility according to the current standard IEC-1000-4-5.
- an operating permit for operation in a means of transport esp. In a ship, esp. In a ship, two-wire measuring device MS issued as follows, ie it can be EMC-certified as follows:
- the two-wire measuring device MS When operating in transport the two-wire measuring device MS be powered by a current of a current loop, the current of the according to a valid standard IEC-1000-4-5, in particular the standard IEC-1000-4-5: 1995 certified, powered by the primary on-board network NP of the means of transport and the supply of the secondary electrical system NS serving source circuit Q comes. This complies with the test specifications of the current standard IEC-1000-4-5 and is or has already been EMC-certified, ie has this type-approval or the corresponding certificate.
- the operating permit of the two-wire measuring device MS ie its EMC certificate, is now granted to it in accordance with the valid IEC-1000-4-5 standard only if it has been tested in accordance with the IEC-1000-4- 5: 1995 EMC certified to be operated exclusively on the vehicle's EMC-certified secondary electrical system.
- the two-wire measuring device MS can be used e.g. be equipped with a correspondingly dimensioned connection-connection device.
- the method according to the invention for testing the two-wire measuring device MS for electromagnetic compatibility which is intended for operation in a means of transport, esp. In a ship, is carried out as follows (again, the measuring device MS of the illustrated stream of fed to the source circuit Q containing current loop:
- a hybrid generator esp. According to standard IEC-60-1 or 10 IEC 469-1, generates a current / voltage surge, esp.
- the hybrid generator is a decoupling network also defined in the aforementioned standard for simulating the source circuit Q and the decoupling network downstream of the test specifications of the standard IEC-1000-4-5: 1995 two-wire measuring device MS.
- An inventive test arrangement for testing a two-wire measuring device for electromagnetic compatibility which is intended for operation in a means of transport, esp. In a ship, includes the aforementioned hybrid generator, esp. According to standard IEC-60-1 or IEC 469-1, for generating the described current / voltage surge, the decoupling network connected downstream of the hybrid generator for simulating the secondary on-board electrical system NS and the decoupling network which is not certified according to the test specifications of the current IEC-1000-4-5 standard. conductor measuring device.
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- Testing Electric Properties And Detecting Electric Faults (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
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Abstract
Description
Die Erfindung betrifft Zwei-Leiter-Messgeräte enthaltende Schaltungsanordnungen und Verkehrsmittel, sowie ein Verfahren zu deren Prüfung.The invention relates to two-wire measuring devices containing circuitry and means of transport, and a method for their testing.
Für die folgenden Erläuterungen wird auf
Zwei-leiter-Meßgeräte der vorgenannten Art sind dem Fachmann hinlänglich bekannt und beispielsweise auch in der
Die erwähnte Energie-Speisung erfolgt mittels einer im Betrieb an die zwei Leiter von außerhalb angeschlossenen, eine Gleichspannung abgebenden, zu einem Primäx-Netz NP gehörenden Gleichspannungsquelle G, so dass sich eine sogenannte Stromschleife schließt. In dieser Schleife liegt auch ein Strom-Messwiderstand Rm, an dem eine zum momentanen Stromwert und somit zum Messsignal proportionale Spannung außerhalb des Messgeräts abgreifbar und weiterverarbeitbar ist.The mentioned power supply takes place by means of a connected in operation to the two conductors from outside, a DC voltage, belonging to a Primäx network NP DC voltage source G, so that closes a so-called current loop. In this loop, there is also a current measuring resistor Rm, at which a voltage proportional to the instantaneous current value and thus to the measuring signal can be picked up and further processed outside the measuring device.
Der Widerstand Rm kann weit entfernt vom Zwei-Leiter-Messgerät MS' angeordnet sein; dann ist er über entsprechend lange Leitungen daran angeschlossen. Somit ist der eine Pol NP1 des Primär-Netzes NP mit dem Leiter L1 des Zwei-Leiter-Messgeräts MS' und der andere Pol NP2 mit dem einen Anschluss des Widerstands Rm verbunden, während dessen anderer Anschluss
sozusagen als indirekter zweiter Primär-Netz-Anschluss NP2' mit dem Leiter L2 verbunden ist.
Auf den beiden Leitern L1, L2 können zusätzlich zu den genannten Stromwerten, die Analogsignale darstellen, auch nach einem der üblichen Standards, wie z.B. dem sogenannten HART-Protokoll, Digitalsignale übertragen werden. Das HART-Protokoll (HART ist eine eingetragene Marke der HART User Group und das Akronym für "Highway Addressable Remote Transducer", also für bus-addressierte Messgeräte) ist seit langem in der industriellen Messtechnik bekannt und eingeführt.The resistor Rm may be located far from the two-wire measuring device MS '; then he is connected via correspondingly long lines. Thus, the one pole is NP1 of the primary network NP with the conductor L1 of the two-conductor measuring device MS 'and the other pole NP2 connected to one terminal of the resistor Rm, while the other terminal
so to speak, as an indirect second primary network connection NP2 'is connected to the conductor L2.
On the two conductors L1, L2, in addition to the current values mentioned, which represent analog signals, digital signals can also be transmitted according to one of the usual standards, such as the so-called HART protocol. The HART protocol (HART is a registered trademark of the HART User Group and the acronym for "Highway Addressable Remote Transducer", ie for bus-addressed measuring devices) has long been known and introduced in industrial metrology.
Das HART-Protokoll ermöglicht eine Kommunikation zwischen einer Feld- und einer Prozessleitebene mit dem Vorteil der gleichzeitigen Übertragbarkeit eines Analog-Messsignals nach dem 4-mA-bis-20-mA-Standard und des digitalen HART-Signals zur Inbetriebnahme, Instandhaltung, Abfrage oder Steuerung der Messgeräte in der Feldebene.The HART protocol enables communication between a field and a process control level with the benefit of the simultaneous transferability of an analog measurement signal according to the 4 mA to 20 mA standard and the digital HART signal for commissioning, maintenance, query or Control of the measuring instruments in the field level.
Während das Analog-Messsignal kontinuierlich verfügbar bleibt, erfolgt eine zyklische Abfrage und gegebenenfalls eine nachfolgende Anweisung durch die digitalen HART-Signale. Dabei wird eine digitale Null durch zwei Sinusschwingungen der Frequenz 2,2 kHz und eine digitale Eins durch eine einzige Sinusschwingung der Frequenz 1,2 kHz entsprechend dem Standard Bell 202 Frequency Shift Keying realisiert. Diese Sinusschwingungen werden über die zwei Leiter übertragen, indem sie dem darin fließenden Strom aufmoduliert werden.While the analog measurement signal remains continuously available, a cyclic polling and possibly a subsequent instruction is performed by the digital HART signals. In this case, a digital zero is realized by two sine waves of frequency 2.2 kHz and a digital one by a single sine wave of frequency 1.2 kHz according to the standard Bell 202 frequency shift keying. These sine waves are transmitted through the two conductors by modulating them on the current flowing through them.
Heutige Zwei-Leiter-Messgeräte sind nur marktfähig, also vom Hersteller verkäuflich, wenn sie auf elektromagnetische Verträglichkeit (kurz: EMV) geprüft sind. Dies hat nachdem derzeit gültigen internationalen Standard IEC-1000-4-5:1995 zu erfolgen, der in den einzelnen Ländern in entsprechende nationale Standards übernommen worden ist, und ist eine sogenannte Typ-Prüfung.Today's two-wire gauges are only marketable, so from the manufacturer for sale, if they are on electromagnetic compatibility (in short: EMC) are tested. This has to be done according to the currently valid international standard IEC-1000-4-5: 1995, which has been adopted in the respective countries in corresponding national standards, and is a so-called type-examination.
Dies bedeutet, dass nicht jedes einzelne hergestellte Geräte geprüft wird, sondern dass die Prüfung eines oder weniger Geräte aus einem Ensemble identischer Geräte ausreichend ist.This means that not every single manufactured device is tested, but that the testing of one or a few devices from an ensemble of identical devices is sufficient.
Der Standard IEC-1000-4-5:1995 ist seit 1995 gültig. Nach der bis 1995 gültigen Vorgänger-Version wurden die beiden Leiter L1, L2 lediglich als Messsignale übertragende Signalleitungen betrachtet und unterlagen somit nicht den demgegenüber für Energiespeiseleitungen schon immer strengeren Vorschriften, nach denen diese geprüft wurden.The standard IEC-1000-4-5: 1995 has been valid since 1995. According to the predecessor version, which was valid until 1995, the two conductors L1, L2 were only considered as signal signals transmitting signal signals and thus were not subject to the regulations that were ever stricter for power supply lines, according to which they were tested.
1995 hat sich diese Betrachtungsweise und Zuordnung jedoch bei direktem Anschluss der Zwei-Leiter-Messgeräte an die Gleichspannungsquelle G bzw. deren Primär-Netz NP dahingehend verschärft, dass nunmehr die zwei Leiter L1, L2 nicht mehr nur als Signalleitungen, sondern auch als Speise-Leitungen definiert sind, so dass sie den genannten strengen Prüfvorschriften unterliegen und nach diesen zu prüfen sind.In 1995, however, this approach and assignment has been exacerbated by direct connection of the two-wire measuring devices to the DC voltage source G or their primary network NP in that now the two conductors L1, L2 are no longer only signal lines but also feeders. Lines are defined so that they are subject to the aforementioned stringent test specifications and are to be examined according to these.
Diese Prüfvorschriften setzen voraus, dass das der Energie- Speisung dienende, von der Gleichspannungsquelle G ausgehende Primär-Netz zusätzlich zur Gleichspannung auch energiereiche Störimpulse generiert, denen ein an das Netz angeschlossenes Zwei-Leiter-Messgerät MS' standhalten muss.These test regulations presuppose that the primary power supply system, which is used by the DC voltage source G, also generates energy-rich interference pulses to which a two-wire measuring device MS 'connected to the network has to withstand.
Diese Prüfvorschriften bilden reale Zustände nach, wie sie in praxi vorkommen, wenn Zwei-Leiter-Messgeräte z.B. auf Verkehrsmitteln, insb. auf Schiffen, verwendet werden sollen. Im auf Schiffen installierten Primär-Bordnetz NP sind die erwähnten Störimpulse nämlich häufig vorhanden, vgl. hierzu die
Dies ist jedoch praktisch nicht sinnvoll, da es bedeuten würde, dass in das Zwei-Leiter-Messgerät MS', das ein standardisiertes Gehäuse Gh aufweist, elektronische Komponenten, z.B eine Spule L' und ein Kondensator C', in geeigneter Kombination eingangsseitig einzubauen sind, die der Unterdrückung oder mindestens der Filterung der auf dem
Primär-Bordnetz NP auftretenden Störimpulse dienen.However, this is practically not useful, since it would mean that in the two-wire measuring device MS ', which has a standardized housing Gh, electronic components, such as a coil L' and a capacitor C ', are installed on the input side in a suitable combination that the suppression or at least the filtering of the on the
Primary electrical system NP occurring interference pulses serve.
Dieser Einbau erhöht aber die Herstellkosten. Ferner steht der für diese meist mehrfach vorzusehenden Filter-Komponenten benötigte Stauraum SF nicht zur Verfügung, so dass das standardisierte Gehäuse Gh durch Hinzufügung eines Gehäusevolumens Gz vergrößert werden müßte, was die Kosten zusätzlich erhöht. Schließlich wird die Übertragbarkeit des erwähnten HART-Protokolls durch die Filter-Komponenten stark beeinträchtigt, wenn nicht unmöglich gemacht.However, this installation increases the manufacturing costs. Furthermore, the storage space SF required for these filter components, which are usually multiple times to be provided, is not available, so that the standardized housing Gh would have to be increased by adding a housing volume Gz, which additionally increases the costs. Finally, the portability of the mentioned HART protocol by the filter components is greatly compromised, if not impossible.
Eine Aufgabe der Erfindung besteht darin, eine ein Zwei- Leiter-Messgerät enthaltende Schaltungsanordnung anzugeben die für den Betrieb in einem Verkehrsmittel, insb. in einem Schiff, bestimmt ist. Noch eine weitere Aufgabe der Erfindung besteht darin, ein Verfahren zur Prüfung eines Zwei-Leiter-Messgeräts auf elektromagnetische Verträglichkeit, insb. nach Standard IEC-1000-4-5:1995, anzugeben, das zum Betrieb in einem Verkehrsmittel, insb. in einem Schiff, bestimmt ist.An object of the invention is to provide a two-wire measuring device containing circuit arrangement for operation in a Means of transport, esp. In a ship, is determined. Yet another object of the invention is to provide a method for testing a two-wire measuring device for electromagnetic compatibility, esp. According to standard IEC-1000-4-5: 1995, which is for operation in a means of transport, esp. In a Ship, certainly.
Eine weitere Aufgabe besteht darin ein entsprechendes Verkehrsmittel anzugeben.Another task is to specify a suitable means of transport.
Gelöst werden diese Aufgaben erfindungsgemäß durch die Merkmale der unabhängigen Ansprüche 1, 2 und 3.These objects are achieved according to the invention by the features of
Ein wesentlicher Vorteil der Erfindung besteht darin, dass in Zwei-Leiter-Messgeräten, die in Verkehrsmitteln, insb. in Schiffen, verwendet werden sollen, keine kostspieligen und Stauraum benötigenden, Störimpulse unterdrückenden bzw. filternden Komponenten erforderlich sind und dass trotzdem eine Betriebserlaubnis nach dem Standard IEC 1000-4-5:1995 für solche Zwei-Leiter-Messgeräte erteilt werden kann.An essential advantage of the invention is that in two-wire gauges, which are to be used in transport, esp. In ships, no costly and storage space-requiring, interference suppression or filtering components are required and that nevertheless an operating license after Standard IEC 1000-4-5: 1995 can be issued for such two-wire measuring instruments.
Die Erfindung wird nun anhand der weiteren Figur der Zeichnung,
In
Da die Erfindung nicht das Messprinzip des Zwei-Leiter-Messgerät MS und dessen elektronische Schaltung, insb. nicht dessen Auswerte-Elektronik, sondern dessen messprinzip-unabhängige Zertifizierung betrifft, wird dessen Schaltungsblock nicht näher detailliert und erläutert.Since the invention does not relate to the measuring principle of the two-wire measuring device MS and its electronic circuit, esp. Not its evaluation electronics, but its measuring principle-independent certification, the circuit block is not detailed and explained.
Das Zwei-Leiter-Messgerät MS ist für den Betrieb in einem Verkehrsmittel, insb. in einem Schiff, bestimmt. Dort ist es von einem Strom einer Stromschleife gespeist, der von einer nach einem gültigen Standard IEC-1000-4-5, insb. dem Standard IEC-1000-4-5:1995, zertifizierten, von einem Primär-Bordnetz NP des Verkehrsmittels gespeisten und der Versorgung eines Sekundär-Bordnetzes NS dienenden Quellenschaltung Q stammt.The two-wire measuring device MS is intended for operation in a means of transport, in particular in a ship. There it is fed by a current from a current loop which is powered by a standard IEC-1000-4-5, in particular the IEC-1000-4-5: 1995 standard, fed by a primary on-board network NP of the means of transport and the supply of a secondary electrical system NS serving source circuit Q comes.
Die beiden Anschlüsse NP1, NP2 liegen somit an Speise-Anschlüssen der Quellenschaltung Q, von der ein aktiver Teil der Einfachheit halber als Quelle g einer Gleichspannung dargestellt ist und zu der Filter-Komponenten, wie z.B. eine Spule L und ein Kondensator C, gehören, so dass an deren Ausgang ein Sekundär-Bordnetz NS mit den Anschlüssen NS1, NS2 entsteht. Auch hier ist der Strom-Messwiderstand Rm zwischen den Anschluss NS2 und den Leiter L2 geschaltet, so dass der messgerät-seitige Anschluss des Widerstands Rm als indirekter Anschluss des Sekundär-Bordnetzes NS2' bezeichnet werden kann.The two terminals NP1, NP2 are thus connected to supply terminals of the source circuit Q, one of which is active Part is shown for the sake of simplicity as a source g of a DC voltage 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 terminals NS1, NS2 arises. Again, the current measuring resistor Rm is connected between the terminal NS2 and the conductor L2, so that the measuring device-side terminal of the resistor Rm can be referred to as the indirect connection of the secondary onboard electrical system NS2 '.
Die Filter-Komponenten sind so bemessen, konzipiert und ausgelegt, dass das Sekundär-Bordnetz NS einem gültigen Standard IEC-1000-4-5, insb. dem Standard IEC-1000-4-5:1995, entspricht und somit nach diesem Standard geprüft und zertifiziert werden kann.The filter components are dimensioned, designed and designed in such a way that the secondary on-board electrical system NS complies with a valid IEC-1000-4-5 standard, in particular the IEC-1000-4-5: 1995 standard, and is therefore tested according to this standard and can be certified.
Aufgrund dieser erfindungsgemäßen Ausbildung braucht das Zwei-Leiter-Messgerät MS überraschenderweise lediglich so konzipiert zu sein, dass es für eine elektromagnetische Verträglichkeit nach dem gültigen Standard IEC-1000-4-5 nicht EMV-zertifizierbar ist.Because of this inventive design, the two-wire measuring device MS surprisingly only needs to be designed so that it is not EMC-certified for electromagnetic compatibility according to the current standard IEC-1000-4-5.
Somit kann einem für den Betrieb in einem Verkehrsmittel, insb. in einem Schiff, bestimmten Zwei-Leiter-Messgerät MS eine Betriebserlaubnis wie folgt erteilt werden, d.h. es kann wie folgt EMV-zertifiziert werden: Beim Betrieb im Verkehrsmittel soll das Zwei-LeiterMessgerät MS von einem Strom einer Stromschleife gespeist sein, wobei der Strom von der nach einem gültigen Standard IEC-1000-4-5, insb. dem Standard IEC-1000-4-5:1995, zertifizierten, vom Primär-Bordnetz NP des Verkehrsmittels gespeisten und der Versorgung des Sekundär-Bordnetzes NS dienenden Quellenschaltung Q stammt. Diese genügt den Prüfvorschriften des gültigen Standards IEC-1000-4-5 und wird bzw. wurde bereits danach EMV-zertifiziert, besitzt also diese Betriebserlaubnis bzw. das entsprechende Zertifikat.Thus, an operating permit for operation in a means of transport, esp. In a ship, esp. In a ship, two-wire measuring device MS issued as follows, ie it can be EMC-certified as follows: When operating in transport the two-wire measuring device MS be powered by a current of a current loop, the current of the according to a valid standard IEC-1000-4-5, in particular the standard IEC-1000-4-5: 1995 certified, powered by the primary on-board network NP of the means of transport and the supply of the secondary electrical system NS serving source circuit Q comes. This complies with the test specifications of the current standard IEC-1000-4-5 and is or has already been EMC-certified, ie has this type-approval or the corresponding certificate.
Die Betriebserlaubnis des Zwei-Leiter-Messgeräts MS, also dessen EMV-Zertifikat, wird ihm nun entsprechend dem gültigen Standard IEC-1000-4-5 nur dann erteilt, wenn es, ohne nach den Prüfvorschriften des gültigen Standards IEC-1000-4-5:1995 EMV-zertifiziert zu sein, im Verkehrsmittel ausschließlich an dessen EMV-zertifiziertem Sekundär-Bordnetz betrieben wird. Um diese Bedingung zu erfüllen, kann das Zwei-Leiter-Messgerät MS z.B. mit einer entsprechend dimensionierten Anschluss-VerbindungsVorrichtung ausgestattet sein.The operating permit of the two-wire measuring device MS, ie its EMC certificate, is now granted to it in accordance with the valid IEC-1000-4-5 standard only if it has been tested in accordance with the IEC-1000-4- 5: 1995 EMC certified to be operated exclusively on the vehicle's EMC-certified secondary electrical system. In order to meet this condition, the two-wire measuring device MS can be used e.g. be equipped with a correspondingly dimensioned connection-connection device.
Das Verfahren entsprechend der Erfindung zur Prüfung des Zwei-Leiter-Messgeräts MS auf elektromagnetische Verträglichkeit, das für den Betrieb in einem Verkehrsmittel, insb. in einem Schiff, bestimmt ist, wird wie folgt durchgeführt (auch hier wird das Messgerät MS vom erläuterten Strom der die Quellenschaltung Q enthaltenden Stromschleife gespeist:The method according to the invention for testing the two-wire measuring device MS for electromagnetic compatibility, which is intended for operation in a means of transport, esp. In a ship, is carried out as follows (again, the measuring device MS of the illustrated stream of fed to the source circuit Q containing current loop:
Ein Hybrid-Generator, insb. nach Standard IEC-60-1 oder 10 IEC 469-1, erzeugt einen Strom/Spannungsstoß, insb. den in diesem Standard hinsichtlich des zeitlichen Verlaufs der Leerlauf spannung und des zeitlichen Verlaufs des Kurzschlußstroms definierten Strom/Spannungsstoß. Dem Hybrid-Generator ist ein im erwähnten Standard ebenfalls 15 definiertes Entkoppelnetzwerk zum Simulieren der Quellenschaltung Q und dem Entkoppelnetzwerk das den Prüfvorschriften des Standards IEC-1000-4-5:1995 nicht genügende Zwei-Leiter-Messgerät MS nachgeschaltet.A hybrid generator, esp. According to standard IEC-60-1 or 10 IEC 469-1, generates a current / voltage surge, esp. In this standard in terms of the time course of the open-circuit voltage and the time course of the short-circuit current defined current / voltage surge , The hybrid generator is a decoupling network also defined in the aforementioned standard for simulating the source circuit Q and the decoupling network downstream of the test specifications of the standard IEC-1000-4-5: 1995 two-wire measuring device MS.
Die Betriebserlaubnis zum Betrieb am Sekundär-Bordnetz NS des Verkehrsmittels, insb. des Schiffes, wird gleichartigen weiteren Zwei-Leiter-Messgeräten und somit die EMV- Zertifizierung ihnen erteilt, wenn das geprüfte ZweiLeiter-Messgerät MS der Prüfung standgehalten hat.The operating license for operation on the secondary on-board electrical system NS of the means of transport, esp. Of the ship, is granted to similar further two-wire measuring devices and thus to the EMC certification if the tested two-wire measuring device MS has withstood the test.
Eine erfindungsgemäße Prüfanordnung zum Prüfen eines Zwei-Leiter-Messgeräts auf elektromagnetische Verträglichkeit, das für den Betrieb in einem Verkehrsmittel, insb. in einem Schiff, bestimmt ist, umfaßt den bereits erwähnten Hybrid-Generator, insb. nach Standard IEC-60-1 oder IEC 469-1, zum Erzeugen des erläuterten Strom/Spannungsstoßes, das dem Hybrid-Generator nachgeschaltete Entkoppelnetzwerk zum Simulieren des Sekundär-Bordnetzes NS und das dem Entkoppelnetzwerk nachgeschaltete, nach den Prüfvorschriften des gültigen Standards IEC-1000-4-5 nicht zertifizierte Zwei-Leiter-Messgerät.An inventive test arrangement for testing a two-wire measuring device for electromagnetic compatibility, which is intended for operation in a means of transport, esp. In a ship, includes the aforementioned hybrid generator, esp. According to standard IEC-60-1 or IEC 469-1, for generating the described current / voltage surge, the decoupling network connected downstream of the hybrid generator for simulating the secondary on-board electrical system NS and the decoupling network which is not certified according to the test specifications of the current IEC-1000-4-5 standard. conductor measuring device.
Claims (4)
- Circuit arrangement comprising:- a primary vehicle electrical system (NP) of a means of transport, particularly a ship, said electrical system powering a source circuit (Q)- a secondary vehicle electrical system (NS), powered by the source circuit (Q), of the means of transport- a two-wire measuring device (MS) which is powered by a current of a current loop which comes from the source circuit (Q)- where the source circuit (Q) meets an applicable standard IEC-1000-4-5, particularly standard IEC-1000-4-5: 1995 and- where the two-wire measuring device (MS) is designed in such a way that it does not meet the applicable standard IEC-1000-4-5.
- Means of transport, particularly a ship, comprising:- a primary vehicle electrical system (NP) which powers a source circuit (Q)- a secondary vehicle electrical system (NS) which is powered by the source circuit (Q)- a two-wire measuring device (MS) which is powered by a current of a current loop coming from the source circuit (Q)- where the source circuit (Q) meets an applicable standard IEC-1000-4-5, particularly standard IEC-1000-4-5:1995, and where the two-wire measuring device (MS) is designed in such a way that it does not meet the standard IEC-1000-4-5, which applies for electromagnetic compatibility
- Process for testing a two-wire measuring device (MS) for electromagnetic compatibility, which is designed for operation in a means of transport, particularly a ship, and is powered there by a current from a current loop. The current comes from a source circuit (Q), which meets a valid IEC-1000-4-5 standard, particularly IEC-1000-4-5:1995, is powered by a primary vehicle electrical system (NP) of the means of transport and is used to power a secondary vehicle electrical system (NS). The process in question comprises the following steps:- interconnecting a hybrid generator used to generate a current/voltage surge, particularly as per IEC-60-1 or IEC 469-1 standard, a decoupling network for simulating the source circuit (Q) and a two-wire measuring device (MS), which does not meet the test specifications of the IEC-1000-4-5: 1995 standard, in such a way that the decoupling network is downstream from the hybrid generator and the two-wire measuring device (MS) is downstream from the decoupling network.- generating a current/voltage surge, which corresponds in particular to the IEC-60-I or IEC 469-1 standard with regard to the time pattern for an open-circuit voltage and a short-circuit current, and determining whether the two-wire measuring device (MS) has withstood the test.
- Process as per the previous claim where additional two-wire measuring devices (MS) of the same type, which do not meet the applicable standard IEC-1000-4-5, are granted operation approval in a secondary vehicle electrical system (NS), which meets the applicable standard IEC-1000-4-5, particularly standard IEC-1000-4-5:1995, if the tested two-wire measuring device (MS) has withstood the test performed in accordance with the previous claim, and if the two-wire measuring device (MS) of the same type is only operated in the means of transport in the secondary vehicle electrical system (NS) which meets the applicable standard IEC-1000-4-5, particularly standard IEC-1000-4-5:1995.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01943257A EP1287511B1 (en) | 2000-05-22 | 2001-04-18 | Circuit arrangement and vehicle comprising a two conductor measuring device and method for testing the same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00110818 | 2000-05-22 | ||
| EP00110818A EP1158476A1 (en) | 2000-05-22 | 2000-05-22 | A two-wire measuring apparatus, a method of testing the same and a testing arrangement therefor |
| EP01943257A EP1287511B1 (en) | 2000-05-22 | 2001-04-18 | Circuit arrangement and vehicle comprising a two conductor measuring device and method for testing the same |
| PCT/EP2001/004386 WO2001091082A2 (en) | 2000-05-22 | 2001-04-18 | Two conductor measuring device, method for testing the same and testing system therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1287511A2 EP1287511A2 (en) | 2003-03-05 |
| EP1287511B1 true EP1287511B1 (en) | 2009-08-26 |
Family
ID=8168791
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00110818A Withdrawn EP1158476A1 (en) | 2000-05-22 | 2000-05-22 | A two-wire measuring apparatus, a method of testing the same and a testing arrangement therefor |
| EP01943257A Expired - Lifetime EP1287511B1 (en) | 2000-05-22 | 2001-04-18 | Circuit arrangement and vehicle comprising a two conductor measuring device and method for testing the same |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00110818A Withdrawn EP1158476A1 (en) | 2000-05-22 | 2000-05-22 | A two-wire measuring apparatus, a method of testing the same and a testing arrangement therefor |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6967486B2 (en) |
| EP (2) | EP1158476A1 (en) |
| KR (1) | KR100673502B1 (en) |
| AT (1) | ATE441168T1 (en) |
| AU (1) | AU6588001A (en) |
| DE (1) | DE50115072D1 (en) |
| WO (1) | WO2001091082A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005047894B4 (en) * | 2005-10-06 | 2010-05-12 | Abb Ag | Method for checking the operability of transmitters |
| KR20130087150A (en) * | 2012-01-27 | 2013-08-06 | 한국전자통신연구원 | Jig for measuring emc of semiconductor chip and method for measuring emc of semiconductor chip using the same |
| US9527395B2 (en) | 2014-05-02 | 2016-12-27 | Fca Us Llc | Access arrangement for the power system of an electric vehicle |
| DE102014011717B4 (en) * | 2014-08-06 | 2021-11-18 | Abb Schweiz Ag | Method and device for intrinsically safe, redundant power supply of field devices |
Family Cites Families (5)
| 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 |
| US5748008A (en) * | 1995-12-06 | 1998-05-05 | Landreth; Keith W. | Electrical integrity test system for boats |
| US5959372A (en) * | 1997-07-21 | 1999-09-28 | Emerson Electric Co. | Power management circuit |
| 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 |
-
2000
- 2000-05-22 EP EP00110818A patent/EP1158476A1/en not_active Withdrawn
-
2001
- 2001-04-18 EP EP01943257A patent/EP1287511B1/en not_active Expired - Lifetime
- 2001-04-18 AU AU65880/01A patent/AU6588001A/en not_active Abandoned
- 2001-04-18 AT AT01943257T patent/ATE441168T1/en not_active IP Right Cessation
- 2001-04-18 US US10/276,298 patent/US6967486B2/en not_active Expired - Fee Related
- 2001-04-18 KR KR1020027015712A patent/KR100673502B1/en not_active IP Right Cessation
- 2001-04-18 WO PCT/EP2001/004386 patent/WO2001091082A2/en active Application Filing
- 2001-04-18 DE DE50115072T patent/DE50115072D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE50115072D1 (en) | 2009-10-08 |
| EP1287511A2 (en) | 2003-03-05 |
| WO2001091082A2 (en) | 2001-11-29 |
| US20030122537A1 (en) | 2003-07-03 |
| US6967486B2 (en) | 2005-11-22 |
| KR20030024677A (en) | 2003-03-26 |
| AU6588001A (en) | 2001-12-03 |
| KR100673502B1 (en) | 2007-01-24 |
| EP1158476A1 (en) | 2001-11-28 |
| WO2001091082A3 (en) | 2002-10-10 |
| ATE441168T1 (en) | 2009-09-15 |
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