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  1. WildWest

    Warning Light

    Hi All, Okay, I finally got around to measuring the trip points as requested.  As best as I can tell, the circiut tripped at approx. 50K ohms and reset at around 1k.  I still want to build an indicator that mimics the air flow switch, so any ideas will help.  I would like for it to be able to...
  2. WildWest

    Warning Light

    I actually thought about replacing the switch but it is not a standard micro switch. The actuator is a custom piece as well as the enclosure so attempting to change the switch might be more difficult than it appears. Couldn't really measure the current to the switch but I expect it is low...
  3. WildWest

    Warning Light

    Thanks for the response. In further checking the switch is not actually in series with the gas valve, it is an input to the control logic PCB. As a facility / enginnering plant engineer, I am well aware of your safety concerns. This switch is monitoring the air flow to the unit (commercial...
  4. WildWest

    Warning Light

    Hi All, I need a simple circuit that will light an LED when contacts of a micro switch open. The switch is in series with a gas valve which operates on 24vac. In the "normal" operating state, the switch is closed and the gas valve is allowed to operate. When air flow is low, the switch opens...
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