Sump pump sensor
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Posts: 46,084
I don't know if your float switch is an integral part of your pump
assembly. In some models, the float switch is electrically and
physically separate. If that is your case, detection of a running
motor is very easy. Where the motor "plugs into" the switch
asembly, add a 120 VAC relay in parallel with the motor. Then the
relay contacts can be used to switch a TTL level to the stamp input.
Frank Helsell
fwhelsel@r...
assembly. In some models, the float switch is electrically and
physically separate. If that is your case, detection of a running
motor is very easy. Where the motor "plugs into" the switch
asembly, add a 120 VAC relay in parallel with the motor. Then the
relay contacts can be used to switch a TTL level to the stamp input.
Frank Helsell
fwhelsel@r...