Discussion Category: pH Meters
Unable to calibrate
Hi,
I have only recently started using this machine (Seven multi). I have calibrated with no problem for the last 2 weeks. However with the last 2 days, I have been unable to calibrate the left probe. When I put the left probe into buffer 7 and press Cal, I get 3 broken lines and no value. i have checked the probe and it seems in good condition, please note this is a relatively new probe. Can anyone please troubleshoot for me. Thanks Katie