Diagnostics
The process of dosing pH or TDS is somewhat complex. This dialogue can be used to monitor the progress after a dose has been administered. Once a dose for the selected channel is administered, HHS tracks the related variable until a quasi-steady state has been reached. The dialog provides the following information:
- Last dose - date/time of the last dose
- Volume - size of the dose
- Initial - initial value
- Target - target (setpoint)
- Change - change since Last dose date
- Log date - - date/time HHS will record the peak change on the log file. If a system shutdown is requested before this date/time, a confirmation message will be issued. If an exit is allowed, a log record will be written but it will be flagged as incomplete.

The EC/TDS tab contains the same variables. It also contains the Formula used for the last adjustment. This tab will be activated when automatic EC/TDS dosing is completed.
