The reaper warehouse full reminder circuit (2)

Published:2011/6/5 5:59:00 Author:qqtang | Keyword: reaper warehouse, full reminder | From:SeekIC

Working principle In the circuit, the photoelectric detection amplifier consists of indicator HL1, lamp switch S1, LDR resistor RG, resistor R1 and R2, potentiometer RP and NPN v1; the acousto-optic siren circuit consists of NPN V2, relay K, diode VD, indicator HL2 and buzzer HA. When using it, fix the reminder circuit in a small control box, RG and HL on the front-end plate of the control box, S1, S2 and HA on the rear board of the control box, locate HL2 in a place which the working man can easily see.



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