Calculating Frequencies

Welcome to the forum @YoOoS

Please see this post for how to post flows or code - How to share code or flow json

However, when posting you should only include the few nodes necessary to show the problem, not your complete system. You can do that be selecting the nodes of interest and exporting just those.

How are the vibration sensors connecting to the machine and what frequency are they?

Since you are a beginner I recommend watching this playlist: Node-RED Essentials. The videos are done by the developers of node-red. They're nice & short and to the point. You will understand a whole lot in about 1 hour. A small investment for a lot of gain.