21.6.11
Fire Alarm Detector circuit
Alarm circuit is working to identify the fire. This alarm is very important for housing complexes that dense that the flame could be caught early.
The system works is that when there is smoke generated by fire pass between the bulb and LDR so that reception of light on the LDR to be reduced, so the resistance value becomes larger dariLDR resulting voltage diCOB / chip enough for on / of life, resulting in the sound of warning / alarm, and sound is amplified by an amplifier TDA 2002 so that the resulting sound becomes louder.
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In the event of a detector or callpoint being activated, the panel is able to determine which circuit contains the triggered device and thereby identify which zone the fire alarm has come from.
Does installation of fire alarm at home can be done in just one day? I badly need to install it now because just last night our neighbor was being rubbed.
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