Running analyses 49
4. Running analyses4. Running analyses
4. Running analyses4. Running analyses
4. Running analyses
✶
IMPORTANT
✶
Before pressing the Run key, check the following points listed below:
1. Select the method by pressing 3 in the main window.
2. If Question marks "?" are present in the electrode and/or reagent
tabs. Programming error due to missing electrode/reagent
parameters. Contact your supervisor.
3. Connect/Check electrode(s).
Refer to Short-Form Reminder no. 1.
When installing/checking an electrode system, do not forget to
connect all the installed electrodes to the Titration Manager or
ABU62 sockets and to install these electrodes on the Titration
Manager (Location = TIM) or the SAC80 or SAC90 Sample Changer
(Location = SAC).
It is important to immerse, in the same measuring beaker, all the
installed electrodes having the same location.
For example: mV at imposed current and pH measurements.
If your installed electrode system comprises a double platinum
electrode with a combined pH electrode, the electrodes must remain
permanently immersed in the same beaker, in order to measure the
pH correctly. This is because it is the double platinum electrode that
provides the connection to the ground and not the reference
electrode.
This so-called " 3-electrode or differential measurement
configuration" will stop the double platinum electrode altering the
measurement at the pH electrode.
When using this configuration for an electrode calibration, the double
platinum electrode and the pH electrode must always be immersed in
the same beaker.
Important: Never remove an electrode or an electrode system
without running the Installation/checking procedure first. The
instrument needs to know its configuration at any time.
For more information, refer to the Reference Manual of your titration
system, keyword index: "Electrode connection - Important".