Ph alarm

[atty]

just have a little problem atm with my Profilux Plus II Ex Ph alarm. The Ph reading is three stars ***, and theres no function for calibrating. I calibrated the ph probe about 6 months ago but then packed it all away. Anyone had this problem before or know how to get around it?
thanks

[AQD_ottawa]

You have unassigned the pH probe, I do not have the instructions in front of me but it is in the manual under pH

[atty]

yeh iv tried that, it states choose yes or no for activity. when i first put the probe in my tank last night it read a ph of 10, and then dropped all the way down till the three stars came up and the alarm kicked in.
when i scroll thru the menu for ph there isnt any thing for calibration.

[AQD_ottawa]

Sounds like probe has expired

Please post you support questions here for GHL to confirm

www.aquariumcomputer.com/forum