B&C PH 7685 - Calibration Sequences; Manual;Automatic Mode Selection

B&C Electronics PH 7685/E – Rev. B
- 22 -
5.3 CALIBRATION SEQUENCES
The following procedures will be active whenever the instrument is not in the keyboard lock
condition.
To unlock the keyboard follows the procedures mentioned in chapter "Configuration".
The following procedures allows the sensors calibration, the Set-point and alarms parameters
programming.
5.3.1 Manual/automatic mode selection
Normally the instrument works in automatic mode.
Follow this procedure to change operating node Automatic/manual.
1.
ù to go to
·D0·
2.§ to access the operating mode selection
3.ò ç to select one of the following Display
ù to stop the procedure and to go to ·DO·
4.
£ - to confirm the selected operating mode
- to go back to ·DO·
14,00pH
ì
AL
à
BH
-1000mV
à
AL
ì
BH
CAL MODE: AUTO
CAL MODE: MANUAL