How to reset Water softner meter Culligen.

I have a Culligan water softener that I needed to reset.

Camera Gear:
Sony A600 Camera: https://www.amazon.ca/Sony-Alpha-Mirr...
Sony 18-200mm Lens: https://www.amazon.ca/Sony-SEL18200-m...
Microphone: https://www.amazon.ca/Sony-ECMGZ1M-Zo...
Go Pro Session: https://www.amazon.ca/GoPro-Session-W...
GoPro Hero 5 Black: https://www.amazon.ca/GoPro-HERO5-Bla...
Gimble ; https://www.amazon.ca/Smooth-Handheld...

Tools:
Wrench set: https://www.canadiantire.ca/en/pdp/ma...
Gear Wrench: https://www.canadiantire.ca/en/pdp/ma...
Impact Driver: https://www.amazon.ca/DEWALT-DCF883B-...
Code Reader: https://www.amazon.ca/Scanner-Diagnos...
Another Code reader: https://www.amazon.ca/Autel-AutoLink-...