Troubleshooting: 'tk empty' error message on Phoenix PH regulation with digital display.

- Categories : Questions about RedOX probes

Client:
I have a Phoenix pH regulation with a digital display. The message "tk empty" appears on the display even though the pH minus circuit is working. How do I remove the display message or how can I perform a reset??

Technical Advisor:
Hello

Technical Advisor:
Give me your email, I need to read the manual!

Client:
email@email.com