I have an application to determine if a pump shaft is turning at least 30 Hz which will be used as feedback that the pump is actually turning. There is a flow switch that confirms flow but, due to the existing valving, it may not register if part of the flow is diverted.
My first thought would be to find a proximeter/ photo detector that could be triggered once or more each shaft rotation and then put this into a stand alone counter that provides a relay output if it's count is above the desired setpoint.
Any other ideas/ suggested hardware that you have used in the past?
My first thought would be to find a proximeter/ photo detector that could be triggered once or more each shaft rotation and then put this into a stand alone counter that provides a relay output if it's count is above the desired setpoint.
Any other ideas/ suggested hardware that you have used in the past?