Hi I am new to this forum and to electronics so please bear with me.
Here is what is happening:
I have a wire loop that leaves my security panel. In the middle of the loop is a NC (normally closed) pressure switch (opens when PSI goes below 25 PSI) connected to one of my AC units at my church. For some reason the pressure is dropping momentary and causing the sensor to open, thus setting off the alarm and calling the police (not good because they started charging for false alarm calls). Yes I am looking into the reason for the pressure drop to begin with.
This is what I would like to do:
I was wondering if it is possible to install a small capacitor and a resistor in the loop so that if the pressure drops, thus cutting the power, the capacitor will start to discharge slowly keeping power going through the loop and not let the alarm trigger. If power is lost for a long enough time say 5 to 10 seconds the capacitor will have emptied and then the alarm will be triggered. This would prevent these momentary drops in pressure that we are seeing with our HVAC gauges.
My security panel outputs 6.8v DC and no amps that my digital non-TRMS meter could read through the loops/zones. The loop already has 3.3k (gold red orange orange) resistor in it, this has to be in the loop for the circuit board in the security panel to know if it has a proper signal.
Thanks for your help
Here is what is happening:
I have a wire loop that leaves my security panel. In the middle of the loop is a NC (normally closed) pressure switch (opens when PSI goes below 25 PSI) connected to one of my AC units at my church. For some reason the pressure is dropping momentary and causing the sensor to open, thus setting off the alarm and calling the police (not good because they started charging for false alarm calls). Yes I am looking into the reason for the pressure drop to begin with.
This is what I would like to do:
I was wondering if it is possible to install a small capacitor and a resistor in the loop so that if the pressure drops, thus cutting the power, the capacitor will start to discharge slowly keeping power going through the loop and not let the alarm trigger. If power is lost for a long enough time say 5 to 10 seconds the capacitor will have emptied and then the alarm will be triggered. This would prevent these momentary drops in pressure that we are seeing with our HVAC gauges.
My security panel outputs 6.8v DC and no amps that my digital non-TRMS meter could read through the loops/zones. The loop already has 3.3k (gold red orange orange) resistor in it, this has to be in the loop for the circuit board in the security panel to know if it has a proper signal.
Thanks for your help