发明名称 Electronic alarm system with time delay
摘要 Electronic alarm system for premises requiring a temperature regulation, with an electronic alarm circuit, controlling the temperature, and a time delay delaying the sending of an alarm signal when the temperature exceeds an authorized temperature range, the alarm circuit including memory storage and/or detection means as a function of which the sending of an alarm signal is delayed or not delayed, these means being a memory containing the times of possible access to the said premises, a memory containing indications of the times of changing of the unit price of the electric current, a detector of the position of the access door, a detector of the periods of defrosting the said premises. A maximum temperature is stored in memory, triggering the alarm automatically without taking account of the time delay. A main box with indicator lamps indicates the temperature within the said premises. <IMAGE>
申请公布号 FR2623315(A1) 申请公布日期 1989.05.19
申请号 FR19870015876 申请日期 1987.11.17
申请人 CAPPA ROBERT;GAUTROIS VILAIS MICHEL 发明人
分类号 G01K3/00;G08B21/18 主分类号 G01K3/00
代理机构 代理人
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