EP1565898B1 - Modular measuring transducer provided with a galvanically separated sensor - Google Patents

Modular measuring transducer provided with a galvanically separated sensor Download PDF

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Publication number
EP1565898B1
EP1565898B1 EP03780057A EP03780057A EP1565898B1 EP 1565898 B1 EP1565898 B1 EP 1565898B1 EP 03780057 A EP03780057 A EP 03780057A EP 03780057 A EP03780057 A EP 03780057A EP 1565898 B1 EP1565898 B1 EP 1565898B1
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EP
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Prior art keywords
electronic module
module
sensor module
transmitter
sensor
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EP03780057A
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German (de)
French (fr)
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EP1565898A2 (en
Inventor
Wolfgang Babel
Detlev Wittmer
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Endress and Hauser Conducta GmbH and Co KG
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Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG
Endress and Hauser Conducta GmbH and Co KG
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link

Definitions

  • the present invention relates to a modular transmitter having a sensor module and an electronic module coupled to the sensor module, wherein the sensor module is coupled via a contactless interface to the electronic module, via which the power supply of the sensor module and the data exchange between the sensor module and the electronic module.
  • the interface may be designed in the manner described in European patent application no. EP 1 206 012 A2 is described, in particular inductive interfaces appear suitable.
  • German Offenlegungsschrift discloses DE 13 703 854 a modular transmitter, in which a sensor is screwed to a measuring head, wherein the measuring head has a transmitting and receiving unit to wirelessly with a central Data collection unit to communicate.
  • the probes such as pH electrodes, are not galvanically isolated from the probe. Rather, it is assumed that a normal metallic contact between the measuring head and the probes.
  • the present invention is therefore based on the object to provide an electronic module for a modular transmitter, which overcomes the disadvantages of the prior art described.
  • the object is achieved by the electronic module according to independent claim 1 and the modular transmitter according to independent claim 5.
  • the modular transmitter according to the invention comprises a sensor module for detecting a measured variable and the electronic module according to the invention, wherein the sensor module and the electronic module are coupled to each other via a contactless interface, via which the power supply of the sensor module and the data exchange between the sensor module and the electronic module, wherein the electronic module further comprising a transmitting or transmitting and receiving unit for wireless data exchange with a complementary receiving or receiving and transmitting station.
  • the power supply of the electronic module can be done either via a supply cable or self-sufficient, ie, for example, by photocells, by means of a battery or by means of a fuel cell. Of course they are the different forms of energy supply can be combined.
  • the wireless data exchange between the electronic module and the complementary receiving or transmitting and receiving unit for example, via radio, ultrasound or light, in particular by means of infrared light.
  • the selected type of data transmission depends on the particular circumstances of the application. For use in laboratory operation with short ranges in particular an infrared data transmission seems suitable, with radio transmission being preferred for systems with longer ranges.
  • the data transmission over a mobile network or via satellite is suitable.
  • the invention can generally be implemented with arbitrary sensors, in particular with potentiometric sensors, turbidity sensors, gas sensors, pressure sensors, level sensors, flow sensors, spectroscopic sensors, photometric sensors, temperature sensors and humidity sensors.
  • the measuring arrangement shown comprises two modular transducers, namely a modular opacimeter 1a and a modular pH transmitter 1b.
  • the two modular transducers 1a, 1b exchange data with a base station 2.
  • the modular opacimeter 1a comprises an electronic module 10a which contains a circuit 8a for processing a signal received from the sensor module 7a Sensor signal includes.
  • the circuit 8a may further comprise means for reading device parameters of the electronic module 10a and the sensor module 7a.
  • the electronic module 10a comprises a transmission unit 9a for transmitting and receiving data to the base station 2.
  • the data transmission unit comprises an infrared transmitter 3a and an infrared receiver 5a, the base station 2 having a complementary receiver 4 and transmitter 6, respectively.
  • the data exchange can take place, for example, according to the IrDA standard.
  • the power supply of the electronic module 10a takes place via a supply line 13a.
  • the supply line 13a is used exclusively for power supply, wherein in a further embodiment, the supply line 13a at the same time redundant for data transmission z.
  • B. regulation of the supply current (4 ... 20 mA) or according to the HART standard is used.
  • a contactless plug connection is provided, which has a socket 11a provided on the underside of the sensor module 10a, and a plug 12a which is connected to the sensor module 7a. and engaged with the bushing 11a.
  • the connector is preferably detachable. Of course, the connector can also be designed vice versa. That from the bottom of the electronic module extends a plug, and the sensor module has a plug head for receiving the plug.
  • a first cylindrical coil may be arranged, wherein the plug 12a has a second cylindrical coil which is coaxial with the first cylindrical coil is arranged.
  • the plug 12a and the socket 11b each have a coil with a toroidal half, wherein the end surfaces of the toroidal core halves are positioned in alignment with each other closely spaced when the plug is disposed in the socket.
  • the inductive energy transfer from the electronic module to the sensor module takes place via an AC signal which is fed by the electronic module.
  • the amplitude of the AC signal is preferably modulated (ASK according to the English term amplitude shift keying), but other types of modulation such as pulse width and frequency modulation are conceivable.
  • the transmission of data to the sensor module takes place here by direct modulation of the injected AC signal, wherein for data transmission from the sensor module to the electronic module is a load modulation of the AC signal.
  • Fig. 1 further shows a modular transmitter 1b, which is designed as a pH transmitter. It has essentially the same structure as the modular turbidity meter 1a, so that reference is made below only to differences from the turbidity meter described above.
  • the sensor module 7b comprises for the pH transmitter a pH electrode, which is connected by means of the plug head 12b in the socket 11b of the contactless plug connection with the electronic module 10b.
  • the power supply of the modular transmitter 1 b is decentralized, for which purpose a battery 13 b is provided in the housing of the electronic module 10 b.
  • the local energy supply via a fuel cell or via a photocell.
  • the assignment of the power supply types to the different sensor types is chosen only for illustration purposes and does not describe a mandatory technical connection.

Abstract

The inventive modular measuring transducer is used for galvanic separation of the modules of said transducer and for avoiding the use of data transmission channels and comprises a sensor module for detecting a measured value, and an electronic module. Said sensor module and electronic module are connected to each other by means of a contactless interface, thereby making it possible to power the sensor module, and to carry out the data exchange between the sensor module and the electronic module. In addition, said electronic module comprises a receiver-transmitter for wireless data interchange with an additional transmitting or receiving-transmitting station.

Description

Die vorliegende Erfindung betrifft einen modularen Messumformer, der ein Sensormodul und ein mit dem Sensormodul gekoppeltes Elektronikmodul aufweist, wobei das Sensormodul über eine kontaktlose Schnittstelle an das Elektronikmodul gekoppelt ist, über welche die Energieversorgung des Sensormoduls und der Datenaustausch zwischen dem Sensormodul und dem Elektronikmodul erfolgt. Die Schnittstelle kann in der Art gestaltet sein, wie sie in der europäischen Patentanmeldung Nr. EP 1 206 012 A2 beschrieben ist, wobei insbesondere induktive Schnittstellen geeignet erscheinen.The present invention relates to a modular transmitter having a sensor module and an electronic module coupled to the sensor module, wherein the sensor module is coupled via a contactless interface to the electronic module, via which the power supply of the sensor module and the data exchange between the sensor module and the electronic module. The interface may be designed in the manner described in European patent application no. EP 1 206 012 A2 is described, in particular inductive interfaces appear suitable.

Wenngleich die in der genannten europäischen Patentanmeldung als Steckverbinder offenbarte Schnittstelle die galvanische Entkopplung zwischen dem Sensormodul und dem Elektronikmodul gewährleistet, so erfordert die dort beschriebene Lösung noch die Datenübertragung zwischen dem Elektronikmodul und einer übergeordneten Einheit, beispielsweise einer Warte, über ein Kabel.Although the disclosed as a connector in the said European patent application interface ensures the galvanic decoupling between the sensor module and the electronic module, the solution described therein still requires the data transmission between the electronic module and a higher-level unit, such as a control room, via a cable.

In besonderen Anwendungsfällen ist dies insofern nachteilhaft, als der modulare Messumformer nur schwer zugänglich ist bzw. sehr weit von der übergeordneten Einheit entfernt ist. Zudem besteht die Gefahr, dass der Datenaustausch zwischen der übergeordneten Einheit und dem Messumformer durch Beschädigung des Kabels beeinträchtigt wird. Weiterhin kann es von Nachteil sein, wenn der Messumformer galvanisch an die übergeordnete Einheit gekoppelt ist, insbesondere dann, wenn lokale Potentialschwankungen auftreten können.In special applications, this is disadvantageous in that the modular transmitter is difficult to access or is very far away from the parent unit. In addition, there is a risk that the data exchange between the higher-level unit and the transmitter will be affected by damage to the cable. Furthermore, it can be disadvantageous if the transmitter is galvanically coupled to the higher-level unit, in particular if local potential fluctuations can occur.

Andererseits offenbart die deutsche Offenlegungsschrift DE 13 703 854 einen modularen Messumformer, bei dem ein Messfühler mit einem Messkopf verschraubt ist, wobei der Messkopf eine Sende- und Empfangseinheit aufweist, um drahtlos mit einer zentralen Datenerfassungseinheit zu kommunizieren. Die Messfühler, beispielsweise pH-Elektroden, sind jedoch nicht galvanisch getrennt von dem Messkopf. Vielmehr ist von einer gewöhnlichen metallischen Kontaktierung zwischen dem Messkopf und den Messfühlern auszugehen.On the other hand, the German Offenlegungsschrift discloses DE 13 703 854 a modular transmitter, in which a sensor is screwed to a measuring head, wherein the measuring head has a transmitting and receiving unit to wirelessly with a central Data collection unit to communicate. However, the probes, such as pH electrodes, are not galvanically isolated from the probe. Rather, it is assumed that a normal metallic contact between the measuring head and the probes.

Dies ist insofern nachteilig, als beim Austausch von Messfühlern durch Funkenabriss Explosionsgefahr in gefährdeten Umgebungen besteht. Zudem können die Kontakte zwischen dem Messfühler und dem Messkopf korrodieren, so dass die Signalübertragung beeinträchtigt wird.This is disadvantageous in that there is a risk of explosion in hazardous environments when replacing sensors by spark arrest. In addition, the contacts between the sensor and the measuring head can corrode, so that the signal transmission is impaired.

Ein weiterer modularer Meßumformer ist aus WO-A-91/13417 bekannt.Another modular transmitter is off WO-A-91/13417 known.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Elektronikmodul für einen modularen Messumformer bereitzustellen, welches die beschriebenen Nachteile des Standes der Technik überwindet.The present invention is therefore based on the object to provide an electronic module for a modular transmitter, which overcomes the disadvantages of the prior art described.

Die Aufgabe wird erfindungsgemäß gelöst durch das Elektronikmodul gemäß des unabhängigen Patentanspruchs 1 sowie dem modularen Messumformer gemäß unabhängigem Patentanspruchs 5.The object is achieved by the electronic module according to independent claim 1 and the modular transmitter according to independent claim 5.

Der erfindungsgemäße modulare Messumformer umfasst ein Sensormodul zum Erfassen einer Messgröße und das erfindungsgemäße Elektronikmodul, wobei das Sensormodul und das Elektronikmodul über eine kontaktlose Schnittstelle miteinander gekoppelt sind, über welche die Energieversorgung des Sensormoduls und der Datenaustausch zwischen dem Sensormodul und dem Elektronikmodul erfolgt, wobei das Elektronikmodul weiterhin eine Sende- bzw. Sende- und Empfangseinheit zum drahtlosen Datenaustausch mit einer komplementären Empfangs- bzw. Empfangs- und Sendestation aufweist.The modular transmitter according to the invention comprises a sensor module for detecting a measured variable and the electronic module according to the invention, wherein the sensor module and the electronic module are coupled to each other via a contactless interface, via which the power supply of the sensor module and the data exchange between the sensor module and the electronic module, wherein the electronic module further comprising a transmitting or transmitting and receiving unit for wireless data exchange with a complementary receiving or receiving and transmitting station.

Die Energieversorgung des Elektronikmoduls kann entweder über ein Versorgungskabel oder autark, d.h. z. B. durch Photozellen, mittels einer Batterie oder mittels einer Brennstoffzelle erfolgen. Selbstverständlich sind die verschiedenen Formen der Energieversorgung miteinander kombinierbar.The power supply of the electronic module can be done either via a supply cable or self-sufficient, ie, for example, by photocells, by means of a battery or by means of a fuel cell. Of course they are the different forms of energy supply can be combined.

Der drahtlose Datenaustausch zwischen dem Elektronikmodul und der komplementären Empfangs- bzw. Sende- und Empfangseinheit kann beispielsweise über Funk, Ultraschall oder Licht, insbesondere mittels Infrarotlicht erfolgen. Die gewählte Art der Datenübertragung hängt von den besonderen Umständen des Einsatzgebietes ab. Für den Einsatz im Laborbetrieb mit kurzen Reichweiten erscheint insbesondere eine Infrarot-Datenübertragung geeignet, wobei für Systeme mit größeren Reichweiten Funkübertragung vorzuziehen ist. Für besondere Anwendungsfälle ist auch die Datenübertragung über ein Mobilfunknetz oder über Satellit geeignet.The wireless data exchange between the electronic module and the complementary receiving or transmitting and receiving unit, for example, via radio, ultrasound or light, in particular by means of infrared light. The selected type of data transmission depends on the particular circumstances of the application. For use in laboratory operation with short ranges in particular an infrared data transmission seems suitable, with radio transmission being preferred for systems with longer ranges. For special applications, the data transmission over a mobile network or via satellite is suitable.

Die Erfindung ist generell mit beliebigen Sensoren realisierbar, insbesondere mit potentiometrischen Sensoren, Trübungssensoren, Gassensoren, Drucksensoren Füllstandssensoren, Durchflusssensoren, spektroskopischen Sensoren, Photometrischen Sensoren, Temperatursensoren und Feuchtesensoren.The invention can generally be implemented with arbitrary sensors, in particular with potentiometric sensors, turbidity sensors, gas sensors, pressure sensors, level sensors, flow sensors, spectroscopic sensors, photometric sensors, temperature sensors and humidity sensors.

Weitere Vorteile und Gesichtspunkte der vorliegenden Erfindung ergeben sich aus den abhängigen Patentansprüchen und der Beschreibung eines Ausführungsbeispiels in der Zeichnung. Es zeigt:

  • Fig. 1: Eine Messanordnung mit einem Messumformer gemäß der vorliegenden Erfindung.
Further advantages and aspects of the present invention will become apparent from the dependent claims and the description of an embodiment in the drawing. It shows:
  • Fig. 1 : A measuring arrangement with a transmitter according to the present invention.

Die in Fig. 1 gezeigte Messanordnung umfasst zwei modulare Messumformer, nämlich einen modularen Trübungsmesser 1a und einen modularen pH-Transmitter 1b. Die beiden modularen Messumformer 1a, 1b tauschen Daten aus mit einer Basisstation 2. Der modulare Trübungsmesser 1a umfasst ein Elektronikmodul 10a, welches eine Schaltung 8a zur Aufbereitung eines vom Sensormodul 7a empfangenen Sensorsignals umfasst. Gegebenenfalls kann die Schaltung 8a weiterhin Mittel zum Auslesen von Geräteparametern des Elektronikmoduls 10a und des Sensormoduls 7a umfassen. Weiterhin umfasst das Elektronikmodul 10a eine Übertragungseinheit 9a zum Senden und Empfangen von Daten an die Basisstation 2. Bei diesem Ausführungsbeispiel umfasst die Datenübertragungseinheit einen Infrarotsender 3a und einen Infrarotempfänger 5a, wobei die Basisstation 2 einen komplementären Empfänger 4 bzw. Sender 6 aufweist. Der Datenaustausch kann beispielsweise nach dem IrDA-Standard erfolgen.In the Fig. 1 The measuring arrangement shown comprises two modular transducers, namely a modular opacimeter 1a and a modular pH transmitter 1b. The two modular transducers 1a, 1b exchange data with a base station 2. The modular opacimeter 1a comprises an electronic module 10a which contains a circuit 8a for processing a signal received from the sensor module 7a Sensor signal includes. Optionally, the circuit 8a may further comprise means for reading device parameters of the electronic module 10a and the sensor module 7a. Furthermore, the electronic module 10a comprises a transmission unit 9a for transmitting and receiving data to the base station 2. In this embodiment, the data transmission unit comprises an infrared transmitter 3a and an infrared receiver 5a, the base station 2 having a complementary receiver 4 and transmitter 6, respectively. The data exchange can take place, for example, according to the IrDA standard.

Die Energieversorgung des Elektronikmoduls 10a erfolgt über eine Versorgungsleitung 13a. In einer ersten Ausführungsform dient dabei die Versorgungsleitung 13a ausschließlich zur Energieversorgung, wobei in einer weiteren Ausführungsform die Versorgungsleitung 13a zugleich redundant zur Datenübertragung z. B. Regulierung des Versorgungsstroms (4 ... 20 mA) oder nach dem HART-Standard verwendet wird.The power supply of the electronic module 10a takes place via a supply line 13a. In a first embodiment, the supply line 13a is used exclusively for power supply, wherein in a further embodiment, the supply line 13a at the same time redundant for data transmission z. B. regulation of the supply current (4 ... 20 mA) or according to the HART standard is used.

Zur Energieversorgung des Sensormoduls und zum Datenaustausch zwischen dem Sensormodul 7a und dem Elektronikmodul 10a ist eine kontaktlose Steckverbindung vorgesehen, welche eine Steckbuchse 11a aufweist, die an der Unterseite des Sensormoduls 10a vorgesehen ist, und einen Stecker 12a, der mit dem Sensormodul 7a verbunden ist, und mit der Buchse 11a in Eingriff gelangt. Die Steckverbindung ist vorzugsweise lösbar. Selbstverständlich kann die Steckverbindung auch umgekehrt gestaltet sein. D.h. von der Unterseite des Elektronikmoduls erstreckt sich ein Stecker, und das Sensormodul weist einen Steckkopf zur Aufnahme des Steckers auf.For the power supply of the sensor module and for data exchange between the sensor module 7a and the electronic module 10a, a contactless plug connection is provided, which has a socket 11a provided on the underside of the sensor module 10a, and a plug 12a which is connected to the sensor module 7a. and engaged with the bushing 11a. The connector is preferably detachable. Of course, the connector can also be designed vice versa. That from the bottom of the electronic module extends a plug, and the sensor module has a plug head for receiving the plug.

Derzeit bevorzugt sind Steckverbindungen mit einer induktiven Übertragung von Daten und Energie. Hierzu kann in der Mantelfläche der Buchse 11a beispielsweise eine erste zylindrische Spule angeordnet sein, wobei der Stecker 12a eine zweite zylindrische Spule aufweist, welche koaxial mit der ersten zylindrischen Spule angeordnet ist. In einer alternativen Ausgestaltung weisen der Stecker 12a und die Buchse 11b jeweils eine Spule mit einer Ringkernhälfte auf, wobei die Endflächen der Ringkernhälften miteinander fluchtend in engem Abstand zueinander positioniert sind, wenn der Stecker in der Buchse angeordnet ist.Currently preferred are connectors with an inductive transmission of data and energy. For this purpose, in the lateral surface of the bush 11a, for example, a first cylindrical coil may be arranged, wherein the plug 12a has a second cylindrical coil which is coaxial with the first cylindrical coil is arranged. In an alternative embodiment, the plug 12a and the socket 11b each have a coil with a toroidal half, wherein the end surfaces of the toroidal core halves are positioned in alignment with each other closely spaced when the plug is disposed in the socket.

Die induktive Energieübertragung vom Elektronikmodul zum Sensormodul erfolgt über ein AC-Signal welches vom Elektronikmodul gespeist wird. Zum Datenaustausch zwischen Sensormodul und Elektronikmodul wird bevorzugt die Amplitude des AC-Signals moduliert (ASK nach dem englischen Begriff Amplitude Shift Keying), jedoch sind auch andere Modulationsarten wie Pulsbreiten- und Frequenzmodulation denkbar. Die Übertragung von Daten zum Sensormodul erfolgt hierbei durch direkte Modulation des eingespeisten AC-Signals, wobei zur Datenübertragung vom Sensormodul zum Elektronikmodul eine Lastmodulation des AC-Signals erfolgt.The inductive energy transfer from the electronic module to the sensor module takes place via an AC signal which is fed by the electronic module. For data exchange between sensor module and electronic module, the amplitude of the AC signal is preferably modulated (ASK according to the English term amplitude shift keying), but other types of modulation such as pulse width and frequency modulation are conceivable. The transmission of data to the sensor module takes place here by direct modulation of the injected AC signal, wherein for data transmission from the sensor module to the electronic module is a load modulation of the AC signal.

Weitere Einzelheiten und Alternativen zur Gestaltung der induktiven Steckverbindung und der Übertragung von Daten und Energie sind in der Patentanmeldung Nr. EP 1 206 012 A2 beschrieben. Einzelheiten zu einem möglichen Aufbau eines Sensormoduls mit einem kontaktlosen Stecker sind in der ebenfalls anhängigen deutschen Patentanmeldung mit dem Aktenzeichen 10218606 offenbart.Further details and alternatives for designing the inductive connector and the transmission of data and energy are described in the patent application no. EP 1 206 012 A2 described. Details of a possible structure of a sensor module with a contactless connector are in the co-pending German patent application with the file number 10218606 disclosed.

Fig. 1 zeigt weiterhin einen modularen Messumformer 1b, der als pH-Transmitter ausgestaltet ist. Er hat im wesentlichen den gleichen Aufbau wie der modulare Trübungsmesser 1a, so dass nachfolgend nur auf Unterschiede zum zuvor beschriebenen Trübungsmesser hingewiesen wird. Fig. 1 further shows a modular transmitter 1b, which is designed as a pH transmitter. It has essentially the same structure as the modular turbidity meter 1a, so that reference is made below only to differences from the turbidity meter described above.

Das Sensormodul 7b umfasst für den pH-Transmitter eine pH-Elektrode, welche mittels des Steckkopfes 12b in der Buchse 11 b der kontaktlosen Steckverbindung mit dem Elektronikmodul 10b verbunden ist.The sensor module 7b comprises for the pH transmitter a pH electrode, which is connected by means of the plug head 12b in the socket 11b of the contactless plug connection with the electronic module 10b.

Die Energieversorgung des modularen Messumformers 1 b erfolgt dezentral, wozu im Gehäuse des Elektronikmoduls 10b eine Batterie 13b vorgesehen ist. In einer weiteren bevorzugten Ausführungsform erfolgt die lokale Energieversorgung über eine Brennstoffzelle bzw. über eine Photozelle. Die Zuordnung der Energieversorgungarten zu den verschiedenen Sensortypen ist nur zu Illustrationszwecken gewählt und beschreibt keinen zwingend erforderlichen technischen Zusammenhang.The power supply of the modular transmitter 1 b is decentralized, for which purpose a battery 13 b is provided in the housing of the electronic module 10 b. In a further preferred embodiment, the local energy supply via a fuel cell or via a photocell. The assignment of the power supply types to the different sensor types is chosen only for illustration purposes and does not describe a mandatory technical connection.

Claims (5)

  1. Electronic module (8a; 8b) for a modular transmitter (1 a; 1 b) with a sensor module (7a; 7b) and an electronic module (8a; 8b), where the sensor module and the electronic module (8a; 8b) can be connected with one another via a non-contact interface (11 a, 12a; 11 b, 12b) via which power is supplied to the sensor module (7a; 7b) and data are exchanged between the sensor module and the electronic module (8a; 8b),
    whereby the electronic module (8a; 8b) comprises a first part of the non-contact interface (11 a, 11 b),
    characterized in that:
    - the electronic module (8a; 8b) further exhibits a transmitter unit or a transmitter and receiver unit (9a; 9b) for wireless data exchange with a complementary receiver station or receiver and transmitter station (2) and
    - the non-contact interface comprises a non-contact, detachable plug-in connection, which exhibits a socket (11a) and a plug (12a) that engages with the socket (11a), whereby the non-contact interface is provided for the inductive transmission of data and energy, whereby the first part of the interface comprises the socket or the plug
  2. Electronic module (8a) as per Claim 1, whereby the electronic module exhibits a connection for a power cable (13a) to provide power to the electronic module.
  3. Electronic module (8b) as per Claim 1 or 2, whereby the electronic module exhibits a photocell, a battery (13b) or a fuel cell for the purpose of supplying power.
  4. Electronic module (8a; 8b) as per one of the Claims 1 to 3, whereby wireless data exchange between the electronic module and a complementary receiver unit or transmitter and receiver unit takes place via a wireless, ultrasonic or light - particularly infrared light - system.
  5. Modular transmitter (1) comprising an electronic module (8a; 8b) as per one of the previous claims and a sensor module (7a; 7b) for recording a process variable, whereby the sensor module (7a; 7b) exhibits a second part of the interface which is complementary to the first part of the interface.
EP03780057A 2002-11-28 2003-11-26 Modular measuring transducer provided with a galvanically separated sensor Expired - Lifetime EP1565898B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10255741 2002-11-28
DE10255741A DE10255741A1 (en) 2002-11-28 2002-11-28 Modular transmitter with galvanically isolated sensor
PCT/EP2003/013272 WO2004049281A2 (en) 2002-11-28 2003-11-26 Modular measuring transducer provided with a galvanically separated sensor

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EP1565898A2 EP1565898A2 (en) 2005-08-24
EP1565898B1 true EP1565898B1 (en) 2010-01-06

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US (1) US20060125625A1 (en)
EP (1) EP1565898B1 (en)
AT (1) ATE454686T1 (en)
AU (1) AU2003288170A1 (en)
DE (2) DE10255741A1 (en)
WO (1) WO2004049281A2 (en)

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WO2004049281A3 (en) 2004-08-19
ATE454686T1 (en) 2010-01-15
EP1565898A2 (en) 2005-08-24
AU2003288170A1 (en) 2004-06-18
DE50312327D1 (en) 2010-02-25
WO2004049281A2 (en) 2004-06-10
US20060125625A1 (en) 2006-06-15
DE10255741A1 (en) 2004-06-09
AU2003288170A8 (en) 2004-06-18

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