DEVICE FOR TESTING DISCONNECTION DETECTING FUNCTION IN FIRE ALARM EQUIPMENT

PURPOSE:To detect fire in the case of testing a disconnection detecting function and to immediately return a fire sensor to a monitoring state after the disconnection detecting function is completely tested. CONSTITUTION:A reception resistor Rr is connected to a fire sensor SE in series and the disc...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	OGAWARA ATSUSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING
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