English translation: continuity test/verification resistor/resistance
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Explanation: With a device like the conductivity-based level detectors described in the first reference cited below, a continuity-test or continuity verification resistor (with a corresponding resistance) may be desirable to provide protection against an open circuit fault condition (Drahtbruch), since the resistance measured or shown by the device can be practically infinite under certain operating conditions and it may be important to be able to distinguish this operational state from an open-circuit (abnormal) condition. With a continuity test resistor, the upper limit of the resistance seen under normal conditions is set by the resistor and a significantly higher (i.e. infinite) resistance indicates an open-circuit fault.
text from second ref:
Mit der Einstellung Drahtbrucherkennung wird in einem Messzyklus von kleiner 0,5sec überprüft, ob ein Drahtbruchwiderstand am Kanal angeschlossen ist.
Der verwendete Widerstand sollte typisch 50 ... 470kOhm betragen.
Sobald ein Kanal mit Drahtbrucherkennung aktiviert ist, so ist die Ausgangslogik zu allen Kanälen invertiert, also bei LEER schaltend.
Ist die Drahtbruchprüfung nicht erfolgreich, d.h. der Draht ist gebrochen, so fallen alle Ausgänge des Geräts ab.
Das Relais R2 ist für die Drahtbrucherkennung fest vorgesehen. Es kann kein anderer Ausgang für diesen Zweck eingestellt werden.
Jeder Kanal kann einzeln auf Drahtbruch eingestellt werden, aber das Drahtbruchsignal ist immer R2.
Ist Drahtbruch einmal aktiviert so kann keiner der Kanäle auf R2 zugreifen.
-------------------------------------------------- Note added at 3 hrs (2008-08-11 16:53:29 GMT) --------------------------------------------------
To be fair, 'continuity test' and 'continuity verification' don't google especially well in this context, although this is the purpose of the resistor in this case. You might consider using 'terminating resistor' (perhaps with the additional information 'for continuity verification').
Hi Kim - No, I don't - I have Wernicke's Dictionary of Electronics, Communications and Electrical Engineering and a raft of glossaries from various clients, including Siemens. Do you recommend it?
Explanation: Hi Claire - the reason I asked about Siemens is I'm not an expert in electronics and didn't want to suggest something from a dictionary you might already have. For Drahtbruch, Siemens gives wire breakage and open circuit. Drahtbruch-Kontrollwiderstand is line continuity supervisory resistor.
-------------------------------------------------- Note added at 47 mins (2008-08-11 13:54:04 GMT) --------------------------------------------------
VLF Receiver Calibration using Thermal NoiseIt may be time consuming to visit the front end, or a signal generator capable ... The mean square noise voltage present across the open-circuit resistor is ... www.abelian.demon.co.uk/vlf/calib.html
Explanation: With a device like the conductivity-based level detectors described in the first reference cited below, a continuity-test or continuity verification resistor (with a corresponding resistance) may be desirable to provide protection against an open circuit fault condition (Drahtbruch), since the resistance measured or shown by the device can be practically infinite under certain operating conditions and it may be important to be able to distinguish this operational state from an open-circuit (abnormal) condition. With a continuity test resistor, the upper limit of the resistance seen under normal conditions is set by the resistor and a significantly higher (i.e. infinite) resistance indicates an open-circuit fault.
text from second ref:
Mit der Einstellung Drahtbrucherkennung wird in einem Messzyklus von kleiner 0,5sec überprüft, ob ein Drahtbruchwiderstand am Kanal angeschlossen ist.
Der verwendete Widerstand sollte typisch 50 ... 470kOhm betragen.
Sobald ein Kanal mit Drahtbrucherkennung aktiviert ist, so ist die Ausgangslogik zu allen Kanälen invertiert, also bei LEER schaltend.
Ist die Drahtbruchprüfung nicht erfolgreich, d.h. der Draht ist gebrochen, so fallen alle Ausgänge des Geräts ab.
Das Relais R2 ist für die Drahtbrucherkennung fest vorgesehen. Es kann kein anderer Ausgang für diesen Zweck eingestellt werden.
Jeder Kanal kann einzeln auf Drahtbruch eingestellt werden, aber das Drahtbruchsignal ist immer R2.
Ist Drahtbruch einmal aktiviert so kann keiner der Kanäle auf R2 zugreifen.
-------------------------------------------------- Note added at 3 hrs (2008-08-11 16:53:29 GMT) --------------------------------------------------
To be fair, 'continuity test' and 'continuity verification' don't google especially well in this context, although this is the purpose of the resistor in this case. You might consider using 'terminating resistor' (perhaps with the additional information 'for continuity verification').
The translation workplace 
peer agreement (net): +1
