Found 6 images also using this tag.

Intruder alarm system controller

I build this intruder alarm controller for my old apartment. It had two modes; away and armed. It was activated either with a key switch, or using the Security keypad with programmable PIN module. When the key switch was turned, a green and red LED started to toggle back and forth. If the key was turned back on green, the away mode would activate, if on red then the system would arm. The key switch and LEDs was mounted in status panel that I had in the apartment.

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Sound alarm control unit

This simple unit controls three sound signals; beep, siren and buzzer. Each sound signal will only be given once when a new alarm is triggered, the input must remain clear for at least four seconds for that signal to rearm. A beep is given every six minutes if an alarm is active, as a reminder. The sound LED flashes when a sound alarm is active; once for signal 1 (beep), twice for signal 2 (siren) and three times for signal 3 (buzzer), this flashing pattern is repeated.

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Alarm disabling unit for production equipment

This module was built for a production equipment at my previous workplace, it made it possible for an operator to silence an alarm without resolving it. Fixing an error could take some time and having the alarm horn sound during that period was very annoying, so many operators removed the alarm relay. This was unfortunate because it was not always put back, so the next alarm situation could go unnoticed. This module would silence the alarm, but still reactive it once the situation had been resolved. Eliminating the need to remove the alarm relay. Powered by: 9-24V.

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Production line stop alarm

This module was built for a production line at my previous workplace, its purpose was to serve as a single alarm system controller for an entire production line. It monitored up to eight machines, each with its own alarm timer. If an alarm was triggered; a one second signal was given with the horn. That input would then be muted, and not give any more alarm until the current alarm situation had been cleared for a minimum of seven seconds.

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Alarm disabling unit for production equipment with long stop warning

This module was built for a production equipment at my previous workplace, it made it possible for an operator to silence an alarm without resolving it. Fixing an error could take some time and having the alarm horn sound during that period was very annoying, so many operators removed the alarm relay. This was unfortunate because it was not always put back, so the next alarm situation could go unnoticed. This module would silence the alarm, but still reactive it once the situation had been resolved. Eliminating the need to remove the alarm relay. This production equipment was a temperature tester, keeping it running was vital for the temperature to be stable. Powered by: 9-24V.

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