Hi all,
I am curious if the NI 9422 can accept signals from a flow meter operating on a reed switch. I understand that when operating on this type of sensor (as opposed to a hall effect), no power supply is required. So does the circuit simply send the sensed pulses back to the card for a counter reading (I have the card configured in counter mode).
The spec on the device is that it is a reed switch two wire SPST N/O contact.
I am asking this because our other flow meters are operating on the hall effect sensor which use a single circuit to both power the flow meter as well as take in the sensed pulses.
I want to know if the card can handle either of these switches.
Thank you.