Operation; Controller Operating And Control Elements - Burkert 8205 Notice D'utilisation

4 OPERATION

The operation of the pH controller is classified according to 3 levels.
Main Menu
pH, temperature, output current, setpoint and working rates are displayed in the normal
function mode.
The "HOLD" function and electrode calibration function ("PH CALIB") can be accessed in
this menu. (see § 4.2)
Calibration Menu
The calibration mode allows adjustments of language, units, 4...20 mA output, output
frequencies and impulse durations, pH setpoint adjustment, regulation principle (P; PI;
PID), alarm thresholds, manual display selection, temperature compensation mode, and
filter selection. (see § 4.3).
Test Menu
The test menu allows the basic setting of the controller (Offset, Span, temperature
adjustment).
A pH or temperature value can be simulated via this menu, allowing the process to be
tested in the "dry condition".
The display of the instantaneous electrode voltage is available. (see § 4.4)

4.1 Controller Operating and Control Elements

Parameter selection and
digit incrementation
Alarm relay
(normally closed)
Selection of parameter and
character
E-21-
PH CONTROLLER 8205
Validation of
parameters and
menu options
Led indicating the relay
2 or transistor 2 status
Led indicating the relay
1 or transistor 1 status