pH Calibration Menu
Pressing the CAL key for 3 seconds takes you into the calibration menu. If calibration was excluded during
programming, the following appears on the display:
Calibration
Off
If calibration is active:
Calibration
Automatic
Calibration
Automatic
Calibration
Manual
Automatic Cal.
Manual Cal.
Automatic Cal.
Manual Cal.
Wait.... 60s
Wait.... 60s
Wait.... 60s
Wait.... 60s
Buffer Sol. 7 pH
Buffer Sol. 7 pH
Buffer Sol.4/9 pH
Buffer Sol.7.00pH
Quality 100%
Quality 100%
Quality 100%
Quality 100%
|||||| ok 7 pH
|||||| ok 7 pH
|||||| ok 4 pH
|||||| ok 4.20pH
Automatic Cal.
Automatic Cal.
Automatic Cal.
Automatic Cal.
Error 7 pH
Error 7 pH
Error 4 pH
Error 4.20pH
Buffer Sol. 7 pH
Buffer Sol. 7 pH
Buffer Sol. 4 pH
Buffer Sol.4.20pH
Cal
-
+
-
It is possible to select automatic or manual mode. In both cases, it is automatically calibrated to pH 7.
-
Automatic calibration:
The buffer solution value appears on the display. Enter the probe in the bottle and press the
key. A 60
second countdown necessary to complete calibration will appear on the display. If the alignment quality is below
50%, an error message appears on the display and you should press
to exit calibration (the pump exits
automatically after 4 seconds). If the quality is above 50%, the value is shown on the display and, after pressing the
key, the buffer solution at pH 4 or 9 will be requested. At this point the procedure is the same as above.
-
Manual calibration:
when the buffer solution value appears on the display, insert the probe in the bottle and press the
key. A 60
second countdown necessary to complete calibration will appear on the display. If the alignment quality is below
50%, an error message appears on the display and you should press
to exit calibration (the pump exits
automatically after 4 seconds). If the quality is above 50%, the value is shown on the display and, after pressing the
key, the value of pH 7.00 flashes on the display. Use the
keys to enter the value of the solution in
your possession, then press
to confirm and start the calibration procedure as before.
EM00136063 rev.
1.0
8