Hach-Lange TITRALAB 840_845 User Guide - Manual (Page 35)

Getting started 35
Sunny icon . The calibration has been performed on the
electrode present in the system. Everything is just right!
Cloudy icon . The electrode calibration of the electrode
present in the system should be performed within 12 or 24
hours.
Stormy icon . The calibration date has elapsed for the
electrode present in the system.
If acceptance limits have been set for the calibration: at
least one calibration result lies outside the programmed
acceptance limits.
Check the sequence or method, (press 1 in the Main
window). The instrument prompts you to do the necessary
operations. You are guided step by step.
Question mark . There is a problem in the editing of the
electrode system. You need to be in Supervisor mode to
solve the problem. Check the sequence/method
parameters of the reagent or the electrode.
Check the sequence or method, (press 1 in the Main
window). The instrument indicates the possible errors and
prompts you to correct them until ? disappears.