To demonstrate the connection of fire-alarm along with cable, sensors and symbolic display (do’s and don’ts) and maintenance.
The experimental setup consists of the following specifications :
- IC regulated power supply : + 12 V @300 mA.
- Fire alarm circuit using Transistors, Relay, Buzzer, Switches.
- LDR used as sensor and its illuminated by LED fitted in a metal casing.
In presence of fire, smoke produce and it’s interrupted the light beam. The transistorized alarm system on and acknowledge and reset by a push switch.