(Variable) Rate control

[SK21]

Yes that could help.

RC12 rate control flow meter question

I have a question about flow meter hook up to the RC12 rate control board. I want to use it with a Micro Trak brand flow meter. The flow meter operation is similar to a Raven. The unit grounds out the signal wire every time the magnet on the turbine goes by to create a pulse. I can’t read flow with that flow meter. I looked at the schematic. I see the opticoupler is grounded to the board and it appears it is set up to see a positive voltage pulse instead of a grounded pulse. Is there a way to ut…